London Heathrow Airport LHR to Seattle-Tacoma International Airport SEA flight with British Airways

Mon, Jul 13
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Journey information

Overview: London Heathrow Airport to Seattle-Tacoma International Airport flight

United KingdomUnited Kingdom
USAUSA
Icon of flight

Flights from London Heathrow Airport to Seattle-Tacoma International Airport depart on average 94 times per day, taking around 10h 21m. Cheap flight tickets for this journey start at $485 (€399) if you book in advance.

There are 5 flights per day. The earliest flight runs at 05:30, the last at 20:25. The fastest flight covers the 4786 miles (7703 km) distance in 12h 35m. March is the cheapest month to fly.

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
4786 miles (7703 km)
Average flight duration
10h 21m
Cheapest ticket price
$485 (€399)
Flights per day
94
Direct flights
5
Fastest flight
12h 35m
First flight
5:30 AM
Last flight
8:25 PM
Cheapest Month
Mar
Cheapest Day
Tue
High Season
Apr - Jun
Low Season
Jul - Sep
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

The cheapest and fastest flights from London Heathrow Airport to Seattle-Tacoma International Airport

Showing times and prices for Jul 13

Cheapest price

$1315

Average price

$2212

Fastest journey

9 h 45 m

Average duration

10 h

Flights per day

7

Distance

7703 km

Cheap tickets

The best way to find a cheap flight ticket from London Heathrow Airport to Seattle-Tacoma International Airport is to book your journey as far in advance as possible and to avoid traveling at rush hour.

The average ticket from London Heathrow Airport to Seattle-Tacoma International Airport will cost around $2212 if you buy it on the day, but the cheapest tickets can be found for only $1315.

Fast flights

Of the 7 flights that leave London Heathrow Airport for Seattle-Tacoma International Airport onMon, Jul 13, 7 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.

On Mon, Jul 13 the direct flights cover the 7703 km distance in an average of 10 h but if you time it right, some flights will get you there in just 9 h 45 m .

On Mon, Jul 13 the longest flights will take 10 h 18 m and usually involve a change or two along the way, but you might be able to save a few pennies if you’re on a budget.

  • Delta Air LinesKL6022
    5:45 PM10h18
    London Heathrow Airport
    8:03 PMSeattle-Tacoma International Airport
    $13151One-way
    0 transfers
  • Delta Air LinesAF3586
    5:45 PM10h18
    London Heathrow Airport
    8:03 PMSeattle-Tacoma International Airport
    $13151One-way
    0 transfers
  • Alaska AirlinesAS101
    5:00 PM9h45
    London Heathrow Airport
    6:45 PMSeattle-Tacoma International Airport
    $13361One-way
    0 transfers
  • British AirwaysBA49
    4:30 PM9h55
    London Heathrow Airport
    6:25 PMSeattle-Tacoma International Airport
    $19581One-way
    0 transfers
  • British AirwaysBA53
    9:50 AM9h45
    London Heathrow Airport
    11:35 AMSeattle-Tacoma International Airport
    $31861One-way
    0 transfers

Live departures

London Heathrow Airport to Seattle-Tacoma International Airport flight times

The table below shows live departures for London Heathrow Airport to Seattle-Tacoma International Airport flights for today, Sunday, July 12. You can also manually refresh the results below to see updated flight journeys.

Last updated at
ProviderDepartsDurationArrivesTransfers
Tickets
British AirwaysBA539:50 AM London Heathrow Airport
9h45
11:35 AM Seattle-Tacoma International Airport0 transfersDirect
British AirwaysBA494:30 PM London Heathrow Airport
9h55
6:25 PM Seattle-Tacoma International Airport0 transfersDirect
Alaska AirlinesAS1015:00 PM London Heathrow Airport
9h45
6:45 PM Seattle-Tacoma International Airport0 transfersDirect
Delta Air LinesKL60226:30 PM London Heathrow Airport
10h12
8:42 PM Seattle-Tacoma International Airport0 transfersDirect
Delta Air LinesAF35866:30 PM London Heathrow Airport
10h12
8:42 PM Seattle-Tacoma International Airport0 transfersDirect

Find all the dates and times for this journey

Compare prices and tickets London Heathrow Airport to Seattle-Tacoma International Airport by flight

Compare flight 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.

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Why should you book London Heathrow Airport to Seattle-Tacoma International Airport flights with Omio?

British Airways as well as American Airlines or Icelandair offer flights services from London Heathrow Airport to Seattle-Tacoma International Airport.
Omio is an official ticket reseller for all your travel options from London Heathrow Airport to Seattle-Tacoma International Airport.

Why book with Omio vs British Airways?

  • Compare with other providers: On Omio, you can not only buy tickets for British Airways, but also compare tickets for the likes of American Airlines or Icelandair to find the best option for your trip from London Heathrow Airport to Seattle-Tacoma International Airport.
  • 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.

Why book with Omio over Skyscanner, Trip or Edreams?

  • Compare with other providers: On Omio, you can also compare tickets for the likes of American Airlines or Icelandair to find the best option for your trip from London Heathrow Airport to Seattle-Tacoma International Airport.

Airlines: British Airways, American Airlines, Icelandair from London Heathrow Airport to Seattle-Tacoma International AirportFind the best flights between London Heathrow Airport to Seattle-Tacoma International Airport with Omio's travel partners British Airways, American Airlines, Icelandair from $485 (€399). We can find you the best deals, schedules and tickets when comparing and booking the best trip.

British Airways

About
British Airways (BA) is the United Kingdom’s flag carrier airline with headquarters in London near its main hub at London Heathrow Airport (LHR). BA is the second largest UK-based airline in terms of fleet size and number of passengers carried. Known as a full-service global airline, British Airways offers year-round low fares to destinations worldwide and flies to and from centrally-located airports. Its extensive global route network includes more than 170 destinations in nearly 80 countries throughout Europe, North America, South America, Asia, Africa and Australia. syn p British Airways (BA) is the flag carrier airline of the United Kingdom with its headquarters in London near its main hub at London Heathrow Airport (LHR). Known as a full-service global airline, BA offers low fares year-round to destinations around the globe and flies to and from centrally-located airports. Its extensive global route network includes more than 170 destinations in nearly 80 countries throughout Europe, North America, South America, Asia, Africa and Australia. BA is also the second largest airline based in the UK in terms of its fleet size and number of passengers carried.
Luggage & cancellation policy
British Airways frequency
14 a day
Luggage included
Economy Basic includes 1 cabin bag (max 23kg, 56x45x25cm) plus 1 personal item (40x30x15cm)
Additional luggage
Additional checked bags can be purchased, with prices varying by route and fare class
Cancellation Policy
Cancellation policy depends on ticket type - Basic tickets non-refundable, Flexible tickets can be cancelled for a full refund
Pregnant on board
Travel permitted until end of 36th week for single pregnancies, end of 32nd week for multiple pregnancies. Medical clearance required after 28th weeks
Unaccompagned minor
Young flyers aged 5-11 can travel alone using British Airways' Skyflyer Solo service. Service must be booked in advance and is available on most routes
Amenities on board the airplane
Wifi
Food sold onboard
USB plugs
Accessibility
British Airways provides assistance for passengers with reduced mobility, including wheelchair assistance and special assistance through airports.
Pets
Pets travel in the hold except assistance dogs. Advance booking required. Only cats and dogs accepted on most routes
Entertaiment on board
Learn more about British Airways

American Airlines

About
American Airlines is one of the largest airlines in the world, connecting travelers to hundreds of destinations across the United States, Latin America, Europe, Asia, and beyond. Operating from major hubs such as Dallas/Fort Worth, Miami, and Charlotte, American offers a wide range of travel options. Passengers can choose from Economy with affordable fares, Premium Economy with extra space, or Business and First Class featuring flat-bed seats, premium dining, and lounge access. With a modern fleet and membership in the oneworld alliance, American Airlines combines global reach with comfort and reliability.
Luggage & cancellation policy
American Airlines frequency
9 a day
Luggage included
1 carry-on bag (22 x 14 x 9 inches) and 1 personal item (18 x 14 x 8 inches) included in most fares
Additional luggage
Checked bags fees vary by route. First checked bag typically $30, second $40 on domestic flights
Cancellation Policy
Basic Economy tickets cannot be changed or refunded. Other fares allow changes with fee, refunds subject to fare rules.
Pregnant on board
Passengers can fly up to 36 weeks for single pregnancies, 32 weeks for multiple pregnancies. Medical certificate required within 7 days of departure if within 4 weeks of due date.
Unaccompagned minor
Children ages 5-14 can travel alone using American Airlines Unaccompanied Minor Service. Service fee is $150 each way.
Amenities on board the airplane
Wifi
Food sold onboard
USB plugs
Accessibility
American Airlines provides wheelchair assistance and special services for passengers with disabilities. Assistance must be requested at least 48 hours before departure.
Pets
Small dogs and cats allowed in cabin for $125 fee. Must be in approved carrier under seat. Service animals allowed.
Entertaiment on board
Learn more about American Airlines

Icelandair

About
Icelandair is the flag carrier of Iceland, with roots tracing back to 1937. It operates as part of the Icelandair Group and is headquartered in Hafnarfjörður, Iceland. The airline's business strategy leverages Iceland's unique geographical position midway between North America and Europe, offering transatlantic flights with a convenient stopover option in Iceland. Icelandair serves destinations on both sides of the Atlantic from its main hub at Keflavík International Airport, and also operates domestic flights from Reykjavík Airport. The airline is known for promoting Iceland as a tourist destination and providing a comfortable flying experience with Icelandic hospitality.
Luggage & cancellation policy
Average Duration
12h 45m
Cheapest Price
$628 (€516)
Icelandair frequency
3 a day
Luggage included
One carry-on bag (10kg) and one personal item included in Economy
Additional luggage
Extra bags can be purchased, prices vary by route
Cancellation Policy
24-hour cancellation policy for full refund, after that fees apply based on fare type
Pregnant on board
Up to week 36 of pregnancy. After week 28, medical certificate required
Unaccompagned minor
Available for children 5-17, must be booked at least 48 hours in advance. Service fee applies
Amenities on board the airplane
Wifi
USB plugs
Accessibility
Wheelchair assistance available, must be requested at least 48 hours before departure
Pets
Small pets in cabin, larger ones in hold. Must be booked in advance
Entertaiment on board
Learn more about Icelandair

FAQs: London Heathrow Airport to Seattle-Tacoma International Airport Flight

Find answers to the most common questions about traveling from London Heathrow Airport to Seattle-Tacoma International Airport by flight. 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 flight, the cheapest option, or tips for making the most of your visit at Seattle-Tacoma International Airport, this guide helps you travel smarter and with confidence.

FAQs
Cheap plane tickets from London Heathrow Airport to Seattle-Tacoma International Airport can start from as little as $485 (€399) when you book in advance. The average flight ticket price for London Heathrow Airport to Seattle-Tacoma International Airport is $848 (€697) ; however, prices vary depending on the time of day and class and they tend to be more expensive on the day.
The average journey time by plane from London Heathrow Airport to Seattle-Tacoma International Airport is 12h 35m to travel the 4786 miles (7703 km) long route. Journey times can vary on weekends and holidays, so use our Journey Planner to search for a specific date.
The earliest flight from London Heathrow Airport to Seattle-Tacoma International Airport leaves at 5:30 AM. Plan your trip with the Journey Planner from Omio.
The latest flight from London Heathrow Airport to Seattle-Tacoma International Airport leaves at 8:25 PM.
Yes, there are 5 direct flights a day from London Heathrow Airport to Seattle-Tacoma International Airport with British Airways. Schedules can vary on holidays or weekends with fewer direct flights.
When taking a flight from London Heathrow Airport to Seattle-Tacoma International Airport, you can count on British Airways, American Airlines, Icelandair for the best way to get you to Seattle-Tacoma International Airport. You can also check all possible airlines who offer a service between London Heathrow Airport and Seattle-Tacoma International Airport and compare the amenities they offer before buying a plane ticket.
The cheapest month for a flight from London Heathrow Airport to Seattle-Tacoma International Airport is March.
Yes, you can take a flight between London Heathrow Airport and Seattle-Tacoma International Airport.
Since neither London Heathrow Airport nor Seattle-Tacoma International Airport are in the Schengen Area, passport requirements depend on the specific immigration rules of United Kingdom and United States. Entry and visa requirements can be subject to change. For the latest information, check with your destination's embassy or consulate.
There is a time difference of 8 h between London Heathrow Airport and Seattle-Tacoma International Airport all year round.
We recommend using the flight as it is the most popular way to get from London Heathrow Airport to Seattle-Tacoma International Airport among Omio's users.
For international flights we recommend to arrive 2.5 to 3 hours before departure. Please check the website of your departure airport if in doubt. Some airports may offer booking time slots for security checks or offer additional information on when to get there based on time of day.
Most airlines permit carry-on bags that fit within specific dimensions (e.g., 22 x 14 x 9 inches or 56 x 36 x 23 cm), including handles and wheels. Bags must fit in the overhead bin or under the seat in front of you.
Many airlines impose weight limits, commonly ranging between 7 kg (15 lbs) and 12 kg (26 lbs). Typically, passengers are allowed one carry-on bag and one personal item (for example a purse, laptop bag, or backpack). Personal items must fit under the seat in front of you. Budget Airlines (like Ryanair or Wizz Air) have stricter size and weight limits, often requiring fees for larger carry-ons. Full-Service Airlines have more lenient policies, sometimes including more spacious dimensions or higher weight limits depending on your ticket class.
The list of items prohibited on an airplane varies by country and airline, but in general, the following items are not allowed in carry-on or checked baggage: Weapons and self-defence items, sharp objects, flammable materials, explosives, toxic substances, or liquids over 100ml (except for medications and baby essentials). In checked baggage, firearms (without authorization), explosives, large lithium batteries, and hazardous chemicals are prohibited. Electronic cigarettes must be in carry-on bags, while alcohol and dry ice have restrictions. Always check with your airline for specific regulations.
The currency used in the United States is the US Dollar (USD). For travelers, using cards is generally more convenient and widely accepted, especially credit and debit cards, while cash is useful for small purchases or places that do not accept cards.
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 airports

Popular airports from London Heathrow Airport to Seattle-Tacoma International Airport

Most London Heathrow Airport to Seattle-Tacoma International Airport flights use the London Heathrow Airport to Seattle-Tacoma International Airport airport pair. Use this guide to compare London Heathrow Airport and Seattle-Tacoma International Airport airports on this route, check city-centre transport, alongside checking practicalities like airport facilities and services.

Departure airports in London
Arrival airports in Seattle
London Heathrow Airport (LHR)Longford TW6, United KingdomWifiShoppingParkingATMTaxisAccessibilityWCShowerLoungeLost and Found Office
City-centre transport

Getting to London Heathrow Airport from London city centre

London Heathrow Airport is 23 km from London city centre. Public transport options include:

TrainElizabeth, London Paddington - Heathrow Terminal 4, London Paddington - Heathrow Terminal 5 · 15m · $43 · every ~3 min
Elizabeth · 35m · $21 · every ~8 min
BusUkn14, Ukn02, Uk043, Uk042, Ukn23, Ukxn10, Ukn49 · 50m · $2 · every ~1 min
Ukxn10 · 50m · $4 · every ~1 min
Ukxn10 · 50m · $4 · every ~1 min
N9 · 1h 11m · $2 · every ~4 min
SubwayPiccadilly · 47m · $26 · every ~27 min

London Heathrow Airport airport facilities and services

London Heathrow Airport has practical services for this route, including Wifi, Shopping, Parking, ATM, Taxis, Accessibility, WC, Shower, Lounge, and Lost and Found Office.

Wi-Fi and ATMs

Free Wi-Fi available throughout the airport for up to 4 hours. ATMs are located in all terminals, offering multiple currencies.

Luggage and lost property

Lost and found is available at the station.

Parking, taxis and toilets

Available at London Heathrow Airport: Parking, Taxis, WC.

Accessibility

Accessibility facilities are available at London Heathrow Airport: Assistance.

More about London Heathrow Airport

More options for your journey from London Heathrow Airport to Seattle-Tacoma International Airport

Here are some other resources that might have the information you need

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