The cheapest and fastest trains from Portsmouth Harbour (PMH) to London Heathrow Airport
Cheapest price
$55
Average price
$82
Fastest journey
2 h 58 m
Average duration
3 h 12 m
Trains per day
4
Distance
88 km
The best way to find a cheap train ticket from Portsmouth Harbour (PMH) 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 Harbour (PMH) to London Heathrow Airport will cost around $82 if you buy it on the day, but the cheapest tickets can be found for only $55.
Of the 4 trains that leave Portsmouth Harbour (PMH) for London Heathrow Airport on Fri, Nov 07, 4 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
On Fri, Nov 07 the direct trains cover the 88 km distance in an average of 3 h 12 m but if you time it right, some trains will get you there in just 2 h 58 m .
On Fri, Nov 07 the slowest trains will take 3 h 26 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.








Travel Information
Compare bus and train for Portsmouth Harbour (PMH) to London Heathrow Airport
Omio recommends booking the bus as it is the most popular option from Portsmouth Harbour (PMH) to London Heathrow Airport among Omio's users. If you are prioritising price take the bus with prices starting from €16. 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 bus costs an average of €16, and a train costs an average of €20.
Distance: 54 miles (88 km)
Compare train with
| Train | Most popular Bus | Ferry |
|---|---|---|
€70 Average price | €21 Average price Cheapest | €21 Average price |
3h 6m Average total duration 2h 36m Onboard + 30m Additional time* | 3h 20m Average total duration 2h 50m Onboard + 30m Additional time* | 1h 45m Average total duration Fastest 45m Onboard + 1h 0m Additional time* |
Direct Options | Direct Options | Direct Options |
Live departures
Portsmouth Harbour (PMH) to London Heathrow Airport train times
The table below shows live departures for Portsmouth Harbour (PMH) to London Heathrow Airport trains for today, Thursday, November 6. You can also manually refresh the results below to see updated train journeys.
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
![]() | 3:29 PM Portsmouth Harbour (PMH) | 3h22 | 6:51 PM London Heathrow Airport | 0 transfersDirect | |
| Friday, November 7 | |||||
![]() | 4:12 AM Portsmouth Harbour (PMH) | 3h13 | 7:25 AM London Heathrow Airport | 0 transfersDirect | |
![]() | 7:23 AM Portsmouth Harbour (PMH) | 2h58 | 10:21 AM London Heathrow Airport | 0 transfersDirect | |
![]() | 7:55 AM Portsmouth Harbour (PMH) | 3h11 | 11:06 AM London Heathrow Airport | 0 transfersDirect | |
This is the last train of the day. | |||||
Find all the dates and times for this journey
Compare prices and tickets Portsmouth Harbour (PMH) to London Heathrow Airport by bus or train
Compare bus 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.
Nov 07
Nov 08
Nov 09
Nov 10
Nov 11
Nov 12
Nov 13
Journey information
Overview: Train from Portsmouth Harbour (PMH) to London Heathrow Airport
Trains from Portsmouth Harbour (PMH) to London Heathrow Airport run on average 14 times per day, taking around 2h 36m. Cheap train tickets for this journey start at $24 (€20) but you can travel from only $20 (€16) by bus.
The earliest train runs at 04:12, the last at 17:15. The fastest train covers the 54 miles (88 km) distance in 2h 49m.
Distance 54 miles (88 km) |
Average train duration 2h 36m |
Cheapest ticket price $24 (€20) |
Trains per day 14 |
Fastest train 2h 49m |
First train 04:12 |
Last train 17:15 |
Train companies: South Western Railway, Southern, CrossCountry from Portsmouth Harbour (PMH) to London Heathrow Airport trainsSouth Western Railway, Southern, CrossCountry trains will get you between Portsmouth Harbour (PMH) and London Heathrow Airport from $20 (€16). With over 1000 travel companies on Omio, you can find the best train times and tickets for your trip.
South Western Railway
Southern
CrossCountry
FAQs: Trains from Portsmouth Harbour (PMH) to London Heathrow Airport
Find answers to the most common questions about traveling from Portsmouth Harbour (PMH) 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
Popular train stations from Portsmouth Harbour (PMH) to London Heathrow Airport
- Opening hours: Monday - Friday 05:50 - 19:00 Saturday 06:30 - 19:00 Sunday 08:00 - 19:00
- Car Park: No
- Staff help available: Yes
- Step free access coverage: Yes
- Step free access note: Step-free category B Station - Steps or 20m ramp (approx. 1:11 gradient) to main entrance, or steps to side entrance. 32m ramp (gradient up to 1:8) from Wightlink IoW ferry terminal. Level access to all platforms. Stepped footbridge between platforms is also available. Please be aware that this station has no 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
- Toilets Location: The toilets are located on Platform 1. The National key toilets are located on Platform 1; these toilets are operated by a radar key.
- National key toilets: Yes
- National key toilets location: The National key toilets are located on Platform 1; these toilets are operated by a radar key.
- Baby changing facilities: No
- Storage sheltered: No
- Storage location: Platform 1 and outside booking hall
- Storage CCTV: Yes
- Location for Rail Replacement Services: Hard Interchange Stands G, H or J
Most popular train connections from Portsmouth Harbour (PMH)
More options for your journey from Portsmouth Harbour (PMH) to London Heathrow Airport
Here are some other resources that might have the information you need

