The cheapest and fastest trains from Portsmouth & Southsea (PMS) to London Heathrow Airport
Cheapest price on 05 Sept
£46
Average ticket price on 05 Sept
£47
Fastest journey on 05 Sept
2 h 49 m
Average journey duration on 05 Sept
3 h 20 m
Trains on 05 Sept
2
Distance
87 km
The best way to find a cheap train ticket from Portsmouth & Southsea (PMS) to London Heathrow Airport is to book your journey as far in advance as possible and to avoid travelling at rush hour.
The average ticket from Portsmouth & Southsea (PMS) to London Heathrow Airport will cost around £47 if you buy it on the day, but you can find cheap train tickets today for only £46.
On Sat 05 Sept, we found 2 trains from Portsmouth & Southsea (PMS) to London Heathrow Airport, including 2 direct services.
These direct trains cover the 87 km distance in an average of 3 h 20 m but if you time it right, some trains will get you there in just 2 h 49 m .
The slowest trains will take 3 h 50 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.
7:212h49Portsmouth & Southsea (PMS)10:10London Heathrow Airport£461One-way0 changes
8:313h50Portsmouth & Southsea (PMS)12:21London Heathrow Airport£471One-way0 changes
7:212h49Portsmouth & Southsea (PMS)10:10London Heathrow Airport£461One-way0 changes
8:313h50Portsmouth & Southsea (PMS)12:21London Heathrow Airport£471One-way0 changes
Travel Information
Compare coach and train for Portsmouth & Southsea (PMS) to London Heathrow Airport
Omio recommends booking the coach as it is the most popular option from Portsmouth & Southsea (PMS) to London Heathrow Airport among Omio's users. If you are prioritising price, take the coach, with an average ticket price of £18 For those with little time, consider booking a coach, which has an average total journey time of 2h 22m. Average ticket prices depend on the travel mode: a coach costs an average of £18, while a train costs an average of £56.
Distance: 87 km
Compare train with
| Train | Most popular Coach | Driving |
|---|---|---|
£56 Average Price | £18 Average Price Cheapest | £31 Average Price (fuel + tolls) |
3h 1m Average total duration 2h 31m Onboard + 30m Additional time* | 2h 22m Average total duration Fastest 1h 52m Onboard + 30m Additional time* | 1h 20m Average total duration (door-to-door) |
![]() Most popular train company | ![]() Most popular bus company | Your own car or car rental |
Direct Options | Direct Options | Direct Options |
This is compared to other travel options from Portsmouth & Southsea (PMS) to London Heathrow Airport:
A coach is £39 less than a train for this route with tickets for a train from Portsmouth & Southsea (PMS) to London Heathrow Airport costing on average £56.
Other travel options to London Heathrow Airport take longer:
Train takes on average 2h 31m.
Tickets start at around £56 compared to roughly £31 in fuel and tolls — a saving of about £-25.33. The journey takes 2h 31m versus 1h 20m by car, so you'll arrive a bit later, but you can work, read, or sleep along the way rather than spending the time behind the wheel. You'll also save the hassle of parking at the other end.
Driving is worth it if you're on a tight schedule, travelling as a group, or want to stop somewhere en route.
Live departures
Portsmouth & Southsea (PMS) to London Heathrow Airport train times
The table below shows live departures for Portsmouth & Southsea (PMS) to London Heathrow Airport trains for today, Friday 4 September. You can also manually refresh the results below to see updated train journeys.
| Provider | Departs | Duration | Arrives | Changes | Tickets |
|---|---|---|---|---|---|
![]() | 14:03 Portsmouth & Southsea (PMS) | 3h19 | 17:22 London Heathrow Airport | 0 changesdirect | |
| Saturday 5 September | |||||
![]() | 7:21 Portsmouth & Southsea (PMS) | 2h49 | 10:10 London Heathrow Airport | 0 changesdirect | |
![]() | 8:31 Portsmouth & Southsea (PMS) | 3h50 | 12:21 London Heathrow Airport | 0 changesdirect | |
This is the last train of the day. | |||||
Find all the dates and times for this journey
Compare prices and tickets Portsmouth & Southsea (PMS) to London Heathrow Airport by coach or train
Compare coach and train 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.
05 Sept
06 Sept
07 Sept
08 Sept
09 Sept
10 Sept
11 Sept
Why should you book Portsmouth & Southsea (PMS) to London Heathrow Airport trains with Omio?
Why book with Omio vs Southern?
- Compare with other providers: On Omio, you can not only buy tickets for Southern, but also compare tickets for the likes of South Western Railway or CrossCountry to find the best option for your trip from Portsmouth & Southsea (PMS) to London Heathrow 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.
- Compare all your options: Omio allows you to compare Southern with all available travel options, which are bus and train to ensure you get the best deal for traveling from Portsmouth & Southsea (PMS) to London Heathrow Airport.
Why book with Omio over Wanderu or Trainline?
- Compare with other providers: On Omio, you can also compare tickets for the likes of South Western Railway or CrossCountry to find the best option for your trip from Portsmouth & Southsea (PMS) to London Heathrow Airport.
- Multiple modes of transport: Omio allows you to compare travel options including bus and train to find the ideal travel option from Portsmouth & Southsea (PMS) to London Heathrow Airport.
Journey information
Overview: Train from Portsmouth & Southsea (PMS) to London Heathrow Airport
Trains from Portsmouth & Southsea (PMS) to London Heathrow Airport run on average 14 times per day, taking around 2h 31m. Cheap train tickets for this journey start at £46 but you can travel from only £15 by coach.
The earliest train runs at 05:15, the last at 08:05. The fastest train covers the 87 km distance in 2h 55m.
Distance 87 km |
Average train duration 2h 31m |
Cheapest ticket price £46 |
Trains per day 14 |
Fastest train 2h 55m |
First train 5:15 |
Last train 8:05 |
Cheapest Month May |
Cheapest Day Thu |
High Season Jul - Sept |
Low Season Oct - Dec |
Busiest Day Sun |
Least Busy Day Thu |
Train companies: Southern, South Western Railway, CrossCountry from Portsmouth & Southsea (PMS) to London Heathrow Airport trainsSouthern, South Western Railway, CrossCountry trains will get you between Portsmouth & Southsea (PMS) and London Heathrow Airport from £15. With over 1000 travel companies on Omio, you can find the best train times and tickets for your trip.
Southern
South Western Railway
CrossCountry
FAQs: Portsmouth & Southsea (PMS) to London Heathrow Airport train
Find answers to the most common questions about traveling from Portsmouth & Southsea (PMS) to London Heathrow Airport 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 London Heathrow Airport, this guide helps you travel smarter and with confidence.

popular train stations
Important Stations and Airports in Portsmouth & Southsea (PMS) and London Heathrow Airport
Most Portsmouth & Southsea (PMS) to London Heathrow Airport trains use the Portsmouth & Southsea to London Waterloo station pair. Use this guide to compare Portsmouth & Southsea (PMS) and London Heathrow Airport train stations on this route, check city-centre transport, alongside checking practicalities like train station facilities and services.
Getting to Portsmouth & Southsea from Portsmouth city centre
Portsmouth & Southsea train station facilities and services
Portsmouth & Southsea has practical services for this route, including Wifi, Parking, Dining, ATM, Accessibility, WC, Hotel, Lost and Found Office, Ticket Office, Bike Parking and Bike Rental.
Food and drink
Food and drink options are available at Portsmouth & Southsea.
Wi-Fi and ATMs
Wi-Fi is available at Portsmouth & Southsea. ATMs are available at Portsmouth & Southsea.
Tickets and information
Ticket office support is available at Portsmouth & Southsea.
Luggage and lost property
Lost and found is available at the station.
Parking, taxis and toilets
Available at Portsmouth & Southsea: Parking, WC.
Bike and car services
Available at Portsmouth & Southsea: Bike Parking, Bike Rental.
Accessibility
Accessibility facilities are available at Portsmouth & Southsea: Staff help available: Yes, Step free access coverage: Yes, Step free access note: Step-free category A Station - This station has step-free access to all platforms. Please be aware that some platforms at this station have no or only partial tactile paving on the platform edge, Accessible ticket machines: There are accessible ticket machines at this station, Accessible ticket machines note: All South Western Railway ticket machines are able to sell tickets with Disabled Persons Railcard discounts. All machines are accessible, however the station may not be so please check the station access note for further details, Accessible toilets: Yes, Ramp for train access: Yes, Wheelchairs available: Yes, Impaired mobility set down / pick up points available: No.
Most popular train connections from Portsmouth & Southsea (PMS)
More options for your journey from Portsmouth & Southsea (PMS) to London Heathrow Airport
Here are some other resources that might have the information you need

