- Must visit
The British Museum
World-famous museum with major collections spanning ancient Egypt, Greece, Rome, Asia, and beyond. A top cultural stop in London and usually high on first-time visitor lists.
Cheapest price
$20
Average price
$28
Fastest journey
1 h 40 m
Average duration
3 h 21 m
Buses per day
5
Distance
87 km
The best way to find a cheap bus ticket from Portsmouth to London Heathrow Airport is to book your journey as far in advance as possible and to avoid traveling at rush hour.
The average ticket from Portsmouth to London Heathrow Airport will cost around $28 if you buy it on the day, but the cheapest tickets can be found for only $20.
Of the 5 buses that leave Portsmouth for London Heathrow Airport on Thu, May 28, 5 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
On Thu, May 28 the direct buses cover the 87 km distance in an average of 3 h 21 m but if you time it right, some buses will get you there in just 1 h 40 m .
On Thu, May 28 the slowest buses will take 9 h 40 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.










Omio recommends booking the bus as it is the most popular option from Portsmouth to London Heathrow Airport among Omio's users. If you are prioritising price take the ferry with prices starting from $26. For those with little time consider booking a ferry which can get you there in 45m. The ticket price range depends on the travel mode: a ferry costs an average of $26, and a train costs an average of $32.
Distance: 54 miles (87 km)
Most popular Bus | Train | Ferry | Driving |
|---|---|---|---|
$30 Average price | $79 Average price | $26 Average price Cheapest | $43 Average price (fuel + tolls) |
5h 19m Average total duration 4h 49m Onboard + 30m Additional time* | 2h 55m Average total duration 2h 25m Onboard + 30m Additional time* | 1h 45m Average total duration Fastest 45m Onboard + 1h 0m Additional time* | 1h 19m Average total duration (door-to-door) |
Direct Options | Direct Options | Direct Options | Direct Options |
This is compared to other travel options from Portsmouth to London Heathrow Airport:
A ferry is $4 (€4) less than a bus for this route with tickets for a bus from Portsmouth to London Heathrow Airport costing on average $30 (€25).
A ferry is $53 (€43) less than a train for this route with tickets for a train from Portsmouth to London Heathrow Airport costing on average $79 (€64).
Other travel options to London Heathrow Airport take longer:
Train takes on average 2h 25m.
Bus takes on average 4h 49m.
Tickets start at around $30 (€25) compared to roughly $43 (€34) in fuel and tolls — a saving of about $12 (€10). The journey takes 4h 49m versus 1h 19m by car, so you'll arrive a bit later, but you can use the time productively rather than spending it behind the wheel. No parking to sort, no fuel stops, and most coaches have Wi-Fi and power outlets.
Direct services are operated by National Express.
Driving is worth considering if you're on a tight schedule, travelling as a group (where fuel costs split several ways), or want the flexibility to stop along the way.
| Operator | Departure Time | Arrival Time | Duration | Departure days | Cheapest price |
|---|---|---|---|---|---|
Operator National Express | Departure Time 02:20AM | Arrival Time 04:00AM | Duration 1h40 | Departure days Thu | Cheapest price $21 |
Operator National Express | Departure Time 03:20AM | Arrival Time 05:00AM | Duration 1h40 | Departure days Mon, Tue, Wed, Fri, Sat | Cheapest price $21 |
Operator National Express | Departure Time 05:35AM | Arrival Time 07:00AM | Duration 1h25 | Departure days Mon, Tue, Wed, Fri | Cheapest price $25 |
Operator National Express | Departure Time 06:05AM | Arrival Time 08:55AM | Duration 2h50 | Departure days Sat | Cheapest price $27 |
Operator National Express | Departure Time 08:20AM | Arrival Time 11:10AM | Duration 2h50 | Departure days Mon, Fri | Cheapest price $25 |
Operator National Express | Departure Time 08:30AM | Arrival Time 09:55AM | Duration 1h25 | Departure days Sat | Cheapest price $27 |
Operator National Express | Departure Time 09:20AM | Arrival Time 11:10AM | Duration 1h50 | Departure days Tue, Wed | Cheapest price $28 |
Operator National Express | Departure Time 10:50AM | Arrival Time 12:20PM | Duration 1h30 | Departure days Mon, Fri, Sat | Cheapest price $27 |
Operator National Express | Departure Time 12:55PM | Arrival Time 04:00PM | Duration 3h05 | Departure days Tue, Wed | Cheapest price $28 |
Operator National Express | Departure Time 01:50PM | Arrival Time 03:20PM | Duration 1h30 | Departure days Mon, Fri, Sat | Cheapest price $21 |
Operator National Express | Departure Time 03:10PM | Arrival Time 05:05PM | Duration 1h55 | Departure days Thu | Cheapest price $25 |
Operator National Express | Departure Time 04:10PM | Arrival Time 06:05PM | Duration 1h55 | Departure days Tue, Wed | Cheapest price $28 |
Operator National Express | Departure Time 04:45PM | Arrival Time 07:30PM | Duration 2h45 | Departure days Mon, Fri | Cheapest price $25 |
Operator National Express | Departure Time 04:55PM | Arrival Time 06:25PM | Duration 1h30 | Departure days Sat | Cheapest price $27 |
Operator National Express | Departure Time 06:25PM | Arrival Time 04:05AM | Duration 9h40 | Departure days Thu, Sun | Cheapest price $33 |
Operator National Express | Departure Time 07:10PM | Arrival Time 08:55PM | Duration 1h45 | Departure days Thu, Sun | Cheapest price $38 |
Operator National Express | Departure Time 08:10PM | Arrival Time 09:55PM | Duration 1h45 | Departure days Everyday | Cheapest price $20 |
The table below shows live departures for Portsmouth to London Heathrow Airport buses for tomorrow, Thursday, May 28. You can also manually refresh the results below to see updated bus journeys.
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
![]() | 2:20 AM Portsmouth | 1h40 | 4:00 AM London Heathrow Airport | 0 transfersDirect | |
This is the last bus of the day. | |||||
Find all the dates and times for this journey
Compare bus, train, and ferry 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.
Buses from Portsmouth to London Heathrow Airport run on average 20 times per day, taking around 4h 49m. Cheap bus tickets for this journey start at $19 (€16) if you book in advance.
There are 12 buses per day. The earliest bus runs at 02:20, the last at 20:10. The fastest bus covers the 54 miles (87 km) distance in 1h 25m.
Distance 54 miles (87 km) |
Average bus duration 4h 49m |
Cheapest ticket price $19 (€16) |
Buses per day 20 |
Direct buses 12 |
Fastest bus 1h 25m |
First bus 2:20 AM |
Last bus 8:10 PM |
Cheapest Month Jun |
Cheapest Day Wed |
High Season Jul - Sep |
Low Season Jan - Mar |
Busiest Day Fri |
Least Busy Day Sun |
Discover the best of London Heathrow Airport — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect London Heathrow Airport trip today.
World-famous museum with major collections spanning ancient Egypt, Greece, Rome, Asia, and beyond. A top cultural stop in London and usually high on first-time visitor lists.
Major art museum on Trafalgar Square with masterpieces by Van Gogh, Turner, Monet, and Leonardo. Excellent choice for classic European painting in a central location.
Leading modern and contemporary art museum in a former power station on the Thames. Known for its scale, rotating displays, and strong social media appeal.
Lively district known for piazzas, performers, historic market buildings, and strong visitor appeal. A convenient area for strolling, shopping, and atmosphere.
Popular riverside walking area stretching past major cultural venues and viewpoints. Excellent for skyline photos, evening walks, and iconic Thames views.
One of London's great royal parks, ideal for walking, relaxing, and open green space in the city center. Includes the Serpentine and several famous memorials.
A traditional breakfast of eggs, sausages, bacon, beans, mushrooms, grilled tomato, and toast. It is one of England’s most iconic hearty meals.
Battered white fish with thick-cut chips, often served with mushy peas and tartar sauce. It is a classic British comfort dish closely associated with London and the wider country.
Roast meat with roast potatoes, seasonal vegetables, gravy, and Yorkshire pudding. This is a beloved British weekend tradition found in pubs across London.
A well-known airport restaurant by Heston Blumenthal, serving refined British classics such as fish and chips in a polished but accessible setting.
A popular Heathrow venue focused on British produce, craft beer, and casual meals. It is a good option for a relaxed pre-flight taste of Britain.
An established Heathrow dining option offering modern British and international dishes, designed for quality airport dining in a stylish space.
Heathrow is pricier than central London. Airport dining, coffee, and convenience items usually cost more than in the city.
Service is often included at sit-down restaurants; if not, 10-12.5% is standard for good service. No tip needed for fast food or takeaway. Round up only for exceptional taxi service.
Official public transport app
London Heathrow Airport Terminals 2 & 3 -> Paddington Station, London
Find answers to the most common questions about traveling from Portsmouth to London Heathrow Airport by bus. 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 bus, the cheapest option, or tips for making the most of your visit at London Heathrow Airport, this guide helps you travel smarter and with confidence.

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