HuddersfieldLeeds
Sat, Jul 11, 1 adult
Sat, Jul 11
+ Add return
Sat, Jul 11
+ Add return

No trains found

We are not able to find a train between these two places.

The cheapest and fastest trainsfrom Huddersfield to LeedsShowing times and prices for Jul 10

Cheapest price

-

Average price

-

Fastest journey

-

Average duration

-

Trains per day

-

Distance

-

Travellers trust Omio
Join the more than 15 million travellers who’ve planned and booked their journeys with Omio.
Transpennine Express
Northern Rail
TransPennine Express
Regionale
Deutsche Bahn
1,000+ travel companies
QR-Code
Scan to discover more features and savings in our app
Special in-app offers
Tickets available offline
Live trip updates
Prices include taxes and may change depending on availability. Any additional fees can be reviewed before payment. The total price will be finalized once the purchase is completed.

Huddersfield to Leeds train with Transpennine Express

Travel Information

Compare train and bus for Huddersfield to Leeds

Omio recommends booking the train as it is the most popular option from Huddersfield to Leeds among Omio's users. If you are prioritising price take the train with prices starting from $2. For those with little time consider booking a train which can get you there in 32m. In case you are seeking to minimise your carbon footprint the train is your best bet as it emits only 0.0 - 0.0kg. The ticket price range depends on the travel mode: a train costs an average of $2, and a bus costs an average of $5.

Distance: 14 miles (23 km)

Compare train with

Most popular
Train
Bus
Driving

$8

Average price

Cheapest

$14

Average price

$6

Average price

(fuel + tolls)

1h 2m

Average total duration

Fastest

32m

Onboard

+

30m

Additional time*

1h 47m

Average total duration

1h 17m

Onboard

+

30m

Additional time*

39m

Average total duration

(door-to-door)

0.0 - 0.0kg

CO2 emissions

Lowest

0.0 - 0.1kg

CO2 emissions

-

CO2 emissions

Transpennine Express

Most popular train company

National Express

Most popular bus company

Your own car or car rental

Direct Options

Direct Options

Direct Options

Additional time: Average total travel duration to departure point, security checks and transfers.

The cheapest way to travel from Huddersfield to Leeds is a train with an average price of $8 (€7).

This is compared to other travel options from Huddersfield to Leeds:

A train is $6 (€5) less than a bus for this route with tickets for a bus from Huddersfield to Leeds costing on average $14 (€12).

The fastest way to travel from Huddersfield to Leeds is by train with an average journey time of 32m.

Other travel options to Leeds take longer:

Bus takes on average 1h 17m.

It's helpful to compare your options as there are 2 ways to travel between Huddersfield and Leeds including taking a train and bus.
We recommend using the train as it is the most popular way to get from Huddersfield to Leeds among Omio's users.
Take the train. It's meaningfully faster than driving, and the time saved usually justifies the price.

You'll arrive about 7m sooner (32m by train vs 39m by car). Tickets start at around $8 (€7) compared to roughly $6 (€5) in fuel and tolls — so you're paying a bit more, but getting hours of your day back, a city-centre arrival, and the freedom to work or relax instead of drive.

Direct services run with TransPennine Express.

Driving makes more sense if you're travelling as a group (where fuel costs split several ways), want to stop along the way, or need a car once you arrive.

Live departures

Huddersfield to Leeds train times

The table below shows live departures for Huddersfield to Leeds trains for tomorrow, Saturday, July 11. You can also manually refresh the results below to see updated train journeys.

Last updated at
ProviderDepartsDurationArrivesTransfers
Tickets
Transpennine ExpressTP447100 · G159365:08 AM Huddersfield station (HUD)
0h42
5:50 AM Leeds station (LDS)1 transfer
Transpennine ExpressTP446900 · C244715:38 AM Huddersfield station (HUD)
0h57
6:35 AM Leeds station (LDS)1 transfer
Northern RailNT2186005:53 AM Huddersfield station (HUD)
1h32
7:25 AM Leeds station (LDS)0 transfersDirect
Northern RailNT218600 · P284545:53 AM Huddersfield station (HUD)
1h12
7:05 AM Leeds station (LDS)1 transfer
Transpennine ExpressTP446700 · G159446:08 AM Huddersfield station (HUD)
0h39
6:47 AM Leeds station (LDS)1 transfer
Transpennine ExpressTP446600 · G159596:23 AM Huddersfield station (HUD)
0h48
7:11 AM Leeds station (LDS)1 transfer
Transpennine ExpressTP446500+Northern RailL893906:38 AM Huddersfield station (HUD)
0h56
7:34 AM Leeds station (LDS)1 transfer
Transpennine ExpressTP446300 · G158517:08 AM Huddersfield station (HUD)
0h41
7:49 AM Leeds station (LDS)1 transfer
Transpennine ExpressTP446200 · C012437:23 AM Huddersfield station (HUD)
0h48
8:11 AM Leeds station (LDS)1 transfer
Transpennine ExpressTP450300+Northern RailL893937:35 AM Huddersfield station (HUD)
0h53
8:28 AM Leeds station (LDS)1 transfer
Transpennine ExpressTP446100 · C244787:38 AM Huddersfield station (HUD)
0h57
8:35 AM Leeds station (LDS)1 transfer
Transpennine ExpressTP445900 · C008688:08 AM Huddersfield station (HUD)
0h40
8:48 AM Leeds station (LDS)1 transfer
Transpennine ExpressTP445800 · G158978:23 AM Huddersfield station (HUD)
0h50
9:13 AM Leeds station (LDS)1 transfer
Transpennine ExpressTP450100+Northern RailL893988:35 AM Huddersfield station (HUD)
0h55
9:30 AM Leeds station (LDS)1 transfer
Transpennine ExpressTP445600 · G162068:53 AM Huddersfield station (HUD)
0h47
9:40 AM Leeds station (LDS)1 transfer
Transpennine ExpressTP443200 · C008693:08 PM Huddersfield station (HUD)
0h42
3:50 PM Leeds station (LDS)1 transfer
Transpennine ExpressTP443100 · C012503:23 PM Huddersfield station (HUD)
0h48
4:11 PM Leeds station (LDS)1 transfer
Transpennine ExpressTP448700+Northern RailL894603:35 PM Huddersfield station (HUD)
0h54
4:29 PM Leeds station (LDS)1 transfer
Transpennine ExpressTP442900 · G163433:53 PM Huddersfield station (HUD)
0h52
4:45 PM Leeds station (LDS)1 transfer
Transpennine ExpressTP442800 · G159084:08 PM Huddersfield station (HUD)
0h40
4:48 PM Leeds station (LDS)1 transfer
Transpennine ExpressTP442700 · G159654:23 PM Huddersfield station (HUD)
0h49
5:12 PM Leeds station (LDS)1 transfer
Transpennine ExpressTP448500+Northern RailL894704:35 PM Huddersfield station (HUD)
0h54
5:29 PM Leeds station (LDS)1 transfer
Transpennine ExpressTP442500 · C248704:53 PM Huddersfield station (HUD)
0h42
5:35 PM Leeds station (LDS)1 transfer
Transpennine ExpressTP442400 · G158235:08 PM Huddersfield station (HUD)
0h42
5:50 PM Leeds station (LDS)1 transfer
Transpennine ExpressTP442300 · G159825:23 PM Huddersfield station (HUD)
0h50
6:13 PM Leeds station (LDS)1 transfer
Transpennine ExpressTP448300+Northern RailL894765:35 PM Huddersfield station (HUD)
0h59
6:34 PM Leeds station (LDS)1 transfer
Transpennine ExpressTP442200+Northern RailL894765:38 PM Huddersfield station (HUD)
0h56
6:34 PM Leeds station (LDS)1 transfer
Transpennine ExpressTP442100 · G160195:53 PM Huddersfield station (HUD)
0h47
6:40 PM Leeds station (LDS)1 transfer
Transpennine ExpressTP442000 · G158246:08 PM Huddersfield station (HUD)
0h40
6:48 PM Leeds station (LDS)1 transfer
Transpennine ExpressTP441900 · G159646:23 PM Huddersfield station (HUD)
0h49
7:12 PM Leeds station (LDS)1 transfer
Transpennine ExpressTP448100+Northern RailL894846:35 PM Huddersfield station (HUD)
1h01
7:36 PM Leeds station (LDS)1 transfer
Transpennine ExpressTP441800+Northern RailL894846:38 PM Huddersfield station (HUD)
0h58
7:36 PM Leeds station (LDS)1 transfer
Transpennine ExpressTP441700 · G163136:53 PM Huddersfield station (HUD)
0h47
7:40 PM Leeds station (LDS)1 transfer
Transpennine ExpressTP441600 · G159037:08 PM Huddersfield station (HUD)
0h40
7:48 PM Leeds station (LDS)1 transfer

This is the last train of the day.

Find all the dates and times for this journey

Compare prices and tickets Huddersfield to Leeds by train or bus

Compare train and bus prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.

Sat
Jul 11
Sun
Jul 12
Mon
Jul 13
Tue
Jul 14
Wed
Jul 15
Thu
Jul 16
Fri
Jul 17

Why should you book Huddersfield to Leeds trains with Omio?

Transpennine Express as well as Northern Rail or TransPennine Express offer trains services from Huddersfield to Leeds.
Omio is an official ticket reseller for all your travel options from Huddersfield to Leeds.

Why book with Omio vs Transpennine Express?

  • Compare with other providers: On Omio, you can not only buy tickets for Transpennine Express, but also compare tickets for the likes of Northern Rail or TransPennine Express to find the best option for your trip from Huddersfield to Leeds.
  • Designed for International Travelers: Omio is in your language including 24/7 customer service and offers multiple payment options, including PayPal, credit cards, and bank transfer, in your preferred currency.
  • Compare all your options: Omio allows you to compare Transpennine Express with all available travel options, which are train and bus to ensure you get the best deal for traveling from Huddersfield to Leeds.

Why book with Omio over Wanderu or Trip?

  • Compare with other providers: On Omio, you can also compare tickets for the likes of Northern Rail or TransPennine Express to find the best option for your trip from Huddersfield to Leeds.
  • Multiple modes of transport: Omio allows you to compare travel options including train and bus to find the ideal travel option from Huddersfield to Leeds.

Journey information

Overview: Train from Huddersfield to Leeds

United KingdomUnited Kingdom
United KingdomUnited Kingdom
Icon of train

Trains from Huddersfield to Leeds run on average 8 times per day, taking around 32m. Cheap train tickets for this journey start at $2 (€2) if you book in advance.

There are 6 trains per day. The earliest train runs at 00:01, the last at 23:58. The fastest train covers the 14 miles (23 km) distance in 21m.

Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
Distance
14 miles (23 km)
Average train duration
32m
Cheapest ticket price
$2 (€2)
Trains per day
8
Direct trains
6
Fastest train
21m
First train
12:01 AM
Last train
11:58 PM
Cheapest Month
Jan
Cheapest Day
Fri
High Season
Oct - Dec
Low Season
Jul - Sep
Busiest Day
Thu
Least Busy Day
Mon
Best time to book
28 days
Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information

Train companies: Transpennine Express, Northern Rail, TransPennine Express from Huddersfield to Leeds trainsTranspennine Express, Northern Rail, TransPennine Express trains will get you between Huddersfield and Leeds from $2 (€2). With over 1000 travel companies on Omio, you can find the best train times and tickets for your trip.

Transpennine Express

About
Transpennine Express is a train company based in the United Kingdom. It operates services from Manchester and Liverpool to Scotland, the North East and Yorkshire. It offers a range of services, including express, regional and local trains. Express trains are the fastest, with journey times of up to three hours. Regional trains are slower, but offer more stops and a more relaxed atmosphere. Local trains are the slowest, but offer the most stops. Transpennine Express offers a range of ticket types, including single, return, group and season tickets. Onboard facilities include free Wi-Fi, power sockets, comfortable seating and a range of food and drink options. The most popular routes for Transpennine Express are Manchester to Edinburgh, Liverpool to Leeds and Manchester to York. These routes offer a convenient and comfortable way to travel between the cities.
Luggage & cancellation policy
Average Duration
21m
Cheapest Price
$8 (€6)
Luggage included
2 large items and 1 small hand luggage included
Luggage storage
Overhead racks, luggage areas at the end of carriages, and under seats
Cancellation Policy
Refund policies apply as per ticket type
Refund
Full refund if service is cancelled
Amenities on board the train
Wifi
Food sold onboard
Trolley service with drinks and snacks, plus a small selection of hot and cold food items
Seat reservation
Seat reservations are free of charge and recommended for busy routes
Toilets
USB plugs
Accessibility
Wheelchair spaces, accessible toilets, ramps for boarding, priority seating, assistance booking service
Pets
Small pets travel free. Dogs must be on a lead. Maximum two dogs per passenger
Quiet zone

Northern Rail

About
Northern Trains is a publicly owned train operating company in the United Kingdom, headquartered in York. It runs local and commuter services across the north of England, connecting regions including the North East, North West, East Midlands, Staffordshire, Yorkshire, and the Humber coastline. As part of the National Rail network, Northern operates under a coordinated fare and ticketing system alongside other UK train companies.Ticket types include Advance, Off-Peak, Anytime Day, single, return, and season tickets, with only one class option available: Standard. Onboard amenities may include comfortable seating, free Wi-Fi, and refreshments on select services. Popular routes include connections between major northern cities such as Manchester, Liverpool, and Leeds.
Luggage & cancellation policy
Average Duration
39m
Cheapest Price
$2 (€2)
Luggage included
2 large items of luggage and 1 small hand luggage
Luggage storage
Overhead racks, luggage areas at end of carriages, under seats
Cancellation Policy
See refund policy for ticket types
Refund
Full refund if service canceled
Amenities on board the train
Wifi
Food sold onboard
Trolley service on most services with drinks and snacks. Some stations have cafes and shops
Seat reservation
Seat reservations available but not mandatory. Free of charge when booking advance tickets
Toilets
USB plugs
Accessibility
Wheelchair spaces, accessible toilets, ramps for boarding, passenger assistance service available
Pets
Small pets travel free. Dogs must be on a lead. Maximum two dogs per passenger
Quiet zone

TransPennine Express

Luggage & cancellation policy
Average Duration
17m
Cheapest Price
$28 (€23)
TransPennine Express frequency
50 a day

Complete guide to Leeds

Things to do in Leeds

Discover the best of Leeds — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect Leeds trip today.

  • Must visit

Royal Armouries Museum

The National Museum of Arms and Armour with major collections of historic weapons, armour, and live demonstrations. One of Leeds’s best-known cultural attractions.

  • Must visit

Leeds Art Gallery

The city’s leading public art gallery, known for British painting, sculpture, and modern art in a landmark central building.

  • Recommended

Leeds City Museum

A family-friendly museum covering natural history, archaeology, ancient worlds, and the history of Leeds in Millennium Square.

Pound sterling

Generally cheaper than London. Hotels vary, while everyday food, transport, and drinks are mid-priced for UK city travel.

Average meal costs

Budget
GBP 8-15 for fast food, cafes, or takeaway.
Mid-range
GBP 18-35 per person at a casual restaurant.
Fine dining
GBP 60+ per person at upscale restaurants.
Coffee
GBP 3-4.50 for a regular coffee.

Tipping culture

Service charge is not usually added outside some upscale venues. In restaurants, 10-12.5% is standard for good service. Round up taxi fares. Tipping in pubs and cafes is optional.

FAQs: Trains from Huddersfield to Leeds

Find answers to the most common questions about traveling from Huddersfield to Leeds by train. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest train, the cheapest option, or tips for making the most of your visit at Leeds, this guide helps you travel smarter and with confidence.

FAQs
Train ticket prices from Huddersfield to Leeds can vary. The cheapest ticket starts at $2 (€2), while the average price is around $8 (€7).
The train from Huddersfield to Leeds takes 21m and runs 8 per day.
The distance by train from Huddersfield to Leeds is 14 miles (23 km).
The first train from Huddersfield to Leeds leaves at 12:01 AM.
The last train from Huddersfield to Leeds leaves at 11:58 PM.
There is no high speed train available from Huddersfield to Leeds.
Yes, there is a direct train from Huddersfield to Leeds. This service operates 6 times per day, provided by TransPennine Express.
Unfortunately, there is no night train available from Huddersfield to Leeds.
The train station in Huddersfield that goes to Leeds is Huddersfield station (HUD), which connects to Leeds station (LDS).
The cheapest way to get from Huddersfield to Leeds is by train, with a cost of around $2 (€2).
The train journey from Huddersfield to Leeds offers some scenic views of the West Yorkshire countryside, including rolling hills and charming villages, providing a pleasant and picturesque travel experience.
Yes, a day trip from Huddersfield to Leeds is feasible. The journey takes 21m, covers a distance of 14 miles (23 km), and trains run 7 times per day.
In Leeds, you can explore the Leeds City Museum with its interactive exhibits on natural history, archaeology, and local history, or visit Temple Newsam, a Tudor-Jacobean mansion featuring beautiful gardens and a working farm. The Thackray Medical Museum offers engaging exhibits on the history of medicine. For performances, The Grand Theatre showcases opera, ballet, and musicals. Shopping enthusiasts will enjoy the Victoria Quarter for its stunning architecture and luxury boutiques. Notable sights include the Royal Armouries Museum, Leeds Art Gallery, Roundhay Park, Kirkstall Abbey, and Harewood House.
Typically, spending 2 to 3 days in Leeds allows you to explore its key attractions, such as the Royal Armouries Museum, Leeds Art Gallery, and the lively shopping and dining scene at Leeds City Centre.
Yes, you can take the train from Huddersfield to Leeds.
Since neither Huddersfield nor Leeds are in the Schengen Area, passport requirements depend on the specific immigration rules of United Kingdom and United Kingdom. Entry and visa requirements can be subject to change. For the latest information, check with your destination's embassy or consulate.
Popular day trips by train from Leeds include Manchester, Sheffield, York, Bradford, Guiseley.
We recommend using the train as it is the most popular way to get from Huddersfield to Leeds among Omio's users.
Items not allowed on trains typically include hazardous materials such as explosives, flammable liquids, corrosive substances, and illegal drugs. Additionally, large or bulky items that may obstruct aisles or emergency exits, as well as pets without proper carriers, may be restricted. Specific prohibited items can vary by train operator and region, so please check the rules for your particular journey.
Yes, rail passes such as the BritRail Pass are valid on most trains within the United Kingdom, offering unlimited travel on participating train operators for a set period.
The currency used in the United Kingdom is the British Pound Sterling (GBP). For travelers, using a card is generally more convenient and widely accepted, especially in cities and for transportation tickets, though carrying some cash can be useful for small purchases or in rural areas.
In Leeds, travelers should be cautious of pickpocketing, especially in busy areas like Leeds city center, train stations, and during events. Taxi scams can occur, so it's advisable to use licensed cabs or reputable ride-hailing apps. Additionally, be aware of distraction techniques used by scammers in crowded places. Always keep personal belongings secure and remain vigilant, particularly at night or in less busy areas.
Pack lightweight, versatile clothing suitable for the destination's climate, and use secure, lockable luggage to protect belongings. Keep essential items like travel documents, medication, and valuables in a carry-on bag for easy access. Use packing organizers or cubes to maximize space and maintain order. Lastly, include a small first aid kit and personal hygiene items for added comfort during travel.

popular train stations

Popular train stations from Huddersfield to Leeds

Most Huddersfield to Leeds trains use the Huddersfield to Leeds station pair, with some services arriving at Burley Park. Use this guide to compare Huddersfield and Leeds train stations on this route, check city-centre transport, alongside checking practicalities like train station facilities and services.

Departure train stations in Huddersfield
Arrival train stations in Leeds

Which Huddersfield station do trains to Leeds leave from?

Trains from Huddersfield to Leeds leave from Huddersfield. The station is from Huddersfield city centre at Huddersfield station, St. Georges Square, Huddersfield, West Yorkshire, HD1 1JB.
HuddersfieldHuddersfield station, St. Georges Square, Huddersfield, West Yorkshire, HD1 1JB+44 1895262122WifiShoppingParkingDiningATMAccessibilityWCHotelLost and Found OfficeTicket OfficeBike Parking
City-centre transport

Getting to Huddersfield from Huddersfield city centre

Location for Rail Replacement ServicesReplacement coaches pick up / drop off from Stand S1 which is located outside the entrance to the station on St Georges Square.

Huddersfield train station facilities and services

Huddersfield has practical services for this route, including Wifi, Shopping, Parking, Dining, ATM, Accessibility, WC, Hotel, Lost and Found Office, Ticket Office, and Bike Parking.

Food and drink

Food and drink options are available at Huddersfield.

Wi-Fi and ATMs

Wi-Fi is available at Huddersfield. ATMs are available at Huddersfield.

Tickets and information

Ticket office support is available at Huddersfield.

Luggage and lost property

Lost and found is available at the station.

Parking, taxis and toilets

Available at Huddersfield: Parking, WC.

Bike and car services

Available at Huddersfield: Bike Parking.

Accessibility

Accessibility facilities are available at Huddersfield: Staff help available: Yes, Step free access coverage: Yes, Step free access note: Step free access is provided from the station entrance to all platforms. Lifts are used to provide level access the subway and platforms 4 to 8. This station is staffed for all services. This station is Category A. Station staff can provide assistance throughout the station, and with boarding and alighting the train. Assistance can be requested in advance by contacting the TransPennine Express Assisted Travel Team on 0800 107 2149 (18001 prefix for TextRelay), Accessible car park equipment: Wheelchair users may require assistance using car park equipment at this station, Accessible ticket machines: There are accessible ticket machines at this station, Accessible toilets: Yes, Ramp for train access: Yes, Wheelchairs available: Yes, Impaired mobility set down / pick up points available: No.

LockwoodLockwood station, Swan Lane, Lockwood, West Yorkshire, HD1 3UB+44 8002006060ParkingDiningTaxisAccessibilityLost and Found OfficeBike Parking
City-centre transport

Getting to Lockwood from Huddersfield city centre

Lockwood is 1 km from Huddersfield city centre. Public transport options include:

TrainHuddersfield - Sheffield, Huddersfield - Lincoln Central · 2m · $1 · every ~2 min
Bus387 · 8m · every ~5 min

Lockwood train station facilities and services

Lockwood has practical services for this route, including Parking, Dining, Taxis, Accessibility, Lost and Found Office, and Bike Parking.

Food and drink

Food and drink options are available at Lockwood.

Luggage and lost property

Lost and found is available at the station.

Parking, taxis and toilets

Available at Lockwood: Parking, Taxis.

Bike and car services

Available at Lockwood: Bike Parking.

Accessibility

Accessibility facilities are available at Lockwood: Staff help available: No, Step free access coverage: Yes, Step free access note: Category A station, Scooter Friendly Station - Step-free access to platform via short ramp from car park, Accessible car park equipment: Wheelchair users can use car park equipment at this station unaided, Accessible ticket machines: There are accessible ticket machines at this station, Ramp for train access: Yes, Wheelchairs available: No, Impaired mobility set down / pick up points available: Yes.

DeightonDeighton station, Whitacre Road, Deighton, West Yorkshire, HD2 1LXParkingTaxisAccessibilityLost and Found OfficeBike ParkingCar Rental
City-centre transport

Getting to Deighton from Huddersfield city centre

Deighton is 3 km from Huddersfield city centre. Public transport options include:

Bus328 · 18m · every ~22 min

Deighton train station facilities and services

Deighton has practical services for this route, including Parking, Taxis, Accessibility, Lost and Found Office, Bike Parking, and Car Rental.

Luggage and lost property

Lost and found is available at the station.

Parking, taxis and toilets

Available at Deighton: Parking, Taxis.

Bike and car services

Available at Deighton: Bike Parking, Car Rental.

Accessibility

Accessibility facilities are available at Deighton: Staff help available: No, Step free access coverage: Yes, Step free access note: Category B station, Station is unstaffed. However no problems for disabled or wheelchair users as the access to the platforms is via the main road and a ramp, Accessible ticket machines: There are accessible ticket machines at this station, Ramp for train access: Yes, Wheelchairs available: No, Impaired mobility set down / pick up points available: Yes.

The Omio App Makes Travel Planning Easy

We’ll get you where you want to go. From live train updates to mobile tickets, our innovative app is the ideal way to plan and keep track of your travel.

ios-badge
android-badge
Hand With Phone