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Find train tickets from Cardiff to London

CWL — LHR
24 May — 31 May1
1 adult
Sat 24/5
Sat 31/5

Good to know

Average price (round-trip)

£99

Average price (one-way)

£53
(avg. price over the last 2 weeks)
(avg. price over the last 2 weeks)

Top tips for finding Cardiff to London Heathrow Airport train tickets

  • 25% of our users found round-trip train tickets from Cardiff to London for £224 or less.
  • You will generally catch the best train deals if you travel in the morning.

FAQs when traveling from Cardiff to London by train

  • How long is a train journey to London Heathrow Airport from Cardiff?

    The train journey from Cardiff to London Heathrow Airport takes 1h 56m on average and covers a distance of 131 miles.

  • What train companies travel from Cardiff to London Heathrow Airport?

    There are different train companies operating between Cardiff and London Heathrow Airport. AccesRail and Great Western Railway are the most booked train companies.

  • How much does a train ticket from Cardiff to London Heathrow Airport cost?

    The average price of a round-trip train ticket from Cardiff to London Heathrow Airport is £508. In the last 3 days, the lowest price found by KAYAK users was £131.

Book train tickets from Cardiff to London Heathrow Airport (return)

24/7Thu
1 stopAccesRail
2h 50mCWL-LHR
29/7Tue
2 stopsAccesRail
3h 30mLHR-CWL
£99
5/6Thu
1 stopAccesRail
2h 55mCWL-LHR
10/6Tue
2 stopsAccesRail
3h 30mLHR-CWL
£99
5/6Thu
directAccesRail
3h 00mCWL-LHR
10/6Tue
directAccesRail
3h 30mLHR-CWL
£99
5/6Thu
directAccesRail
3h 00mCWL-LHR
11/6Wed
directAccesRail
2h 50mLHR-CWL
£99
24/7Thu
1 stopAccesRail
2h 50mCWL-LHR
30/7Wed
1 stopAccesRail
3h 10mLHR-CWL
£99
30/4Wed
directAccesRail
3h 20mCWL-LHR
22/5Thu
2 stopsAccesRail
3h 30mLHR-CWL
£99
4/6Wed
1 stopAccesRail
2h 50mCWL-LHR
11/6Wed
2 stopsAccesRail
3h 35mLHR-CWL
£99
4/6Wed
directAccesRail
2h 50mCWL-LHR
10/6Tue
directAccesRail
3h 30mLHR-CWL
£99
29/4Tue
2 stopsAccesRail
3h 35mCWL-LHR
22/5Thu
2 stopsAccesRail
3h 35mLHR-CWL
£99
5/6Thu
2 stopsAccesRail
3h 30mCWL-LHR
11/6Wed
2 stopsAccesRail
3h 50mLHR-CWL
£99
4/6Wed
directAccesRail
2h 50mCWL-LHR
11/6Wed
directAccesRail
3h 30mLHR-CWL
£99
4/6Wed
1 stopAccesRail
2h 50mCWL-LHR
10/6Tue
2 stopsAccesRail
3h 30mLHR-CWL
£99
25/7Fri
1 stopAccesRail
2h 55mCWL-LHR
30/7Wed
2 stopsAccesRail
3h 35mLHR-CWL
£99
28/4Mon
1 stopAccesRail
2h 50mCWL-LHR
22/5Thu
1 stopAccesRail
2h 50mLHR-CWL
£99
29/4Tue
1 stopAccesRail
2h 50mCWL-LHR
21/5Wed
2 stopsAccesRail
3h 30mLHR-CWL
£99
28/4Mon
2 stopsAccesRail
3h 25mCWL-LHR
21/5Wed
2 stopsAccesRail
3h 30mLHR-CWL
£99
25/7Fri
2 stopsAccesRail
3h 35mCWL-LHR
29/7Tue
2 stopsAccesRail
3h 30mLHR-CWL
£99
5/6Thu
directGreat Western Railway
2h 09mD6M-QQP
11/6Wed
directGreat Western Railway
2h 37mQQP-D6M
£111
6/6Fri
1 stopAccesRail
2h 40mCWL-LHR
14/6Sat
1 stopAccesRail
2h 55mLHR-CWL
£113
7/6Sat
1 stopAccesRail
2h 50mCWL-LHR
14/6Sat
1 stopAccesRail
2h 50mLHR-CWL
£113

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Book train tickets from Cardiff to London Heathrow Airport (one-way)

3/7Thu
directGreat Western Railway
2h 09mD6M-QQP
£32
7/6Sat
directGreat Western Railway
2h 00mD6M-QQP
£32
7/6Sat
directAccesRail
2h 40mCWL-LHR
£44
8/6Sun
directAccesRail
2h 50mCWL-LHR
£44
2/5Fri
directGreat Western Railway
2h 09mD6M-QQP
£61
13/7Sun
directAccesRail
3h 20mCWL-LHR
£65
12/7Sat
directAccesRail
3h 25mCWL-LHR
£65
5/10Sun
2 stopsAccesRail
3h 25mCWL-LHR
£65
13/7Sun
1 stopAccesRail
2h 45mCWL-LHR
£65
6/10Mon
2 stopsAccesRail
3h 35mCWL-LHR
£65
12/7Sat
1 stopAccesRail
2h 40mCWL-LHR
£65
13/7Sun
2 stopsAccesRail
3h 20mCWL-LHR
£65
6/10Mon
directAccesRail
3h 20mCWL-LHR
£65
13/7Sun
4 stopsAccesRail
2h 19mCFW-QQP
£82
6/10Mon
5 stopsAccesRail
2h 42mCFW-LHR
£138
2/7Wed
2 stopsAccesRail
3h 25mCWL-LHR
£1,055
9/6Mon
2 stopsAccesRail
4h 00mCWL-LHR
£1,055
3/7Thu
directAccesRail
3h 35mCWL-LHR
£1,055
7/6Sat
2 stopsAccesRail
3h 20mCWL-LHR
£1,055
1/5Thu
directAccesRail
2h 50mCWL-LHR
£1,055

Search by stops

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More options for your train ride to London Heathrow Airport

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