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Heathrow Terminal 3 to Cardiff Train prices and times

Looking to travel from Heathrow Terminal 3 to Cardiff? You can buy train tickets with Trip.com for as low as US$67.95, with average prices for this route around US$75.82.

To get the best deals, we recommend buying in advance and researching alternatives such as split tickets.

View More Trains
DepartureArrivalOperator
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08:06
2h 31m, Changes required
Heathrow Terminals 2 & 3
10:37
Cardiff Central
Elizabeth lineGreat Western Railway
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08:17
2h 20m, Changes required
Heathrow Terminals 2 & 3
10:37
Cardiff Central
Heathrow ExpressGreat Western Railway
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08:36
2h 31m, Changes required
Heathrow Terminals 2 & 3
11:07
Cardiff Central
Elizabeth lineGreat Western Railway
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08:47
2h 20m, Changes required
Heathrow Terminals 2 & 3
11:07
Cardiff Central
Heathrow ExpressGreat Western Railway
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08:51
2h 49m, Changes required
Heathrow Terminals 2 & 3
11:40
Cardiff Central
Elizabeth lineGreat Western Railway
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09:17
2h 23m, Changes required
Heathrow Terminals 2 & 3
11:40
Paris
Heathrow ExpressGreat Western Railway
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Heathrow Terminal 3 to Cardiff Train Route Details

First train
First train
00:04
Last train
Last train
23:02
Departure station
Departure station
Heathrow Terminal 3
Arrival station
Arrival station
Cardiff
Journey time
Journey time
2h 14m
Distance
Distance
188 km
Price
Price
US$67.95*
Train operators
Train operators
Heathrow Express, Elizabeth line, CrossCountry

How to book cheap train tickets from Heathrow Terminal 3 to Cardiff

Traveling in off-peak train times

Traveling in off-peak train times

We recommend buying train tickets from Heathrow Terminal 3 to Cardiff during off-peak hours. These times are usually before 06:30, between 09:30 and 16:00, and after 19:00 on weekdays, as well as all day on weekends and bank holidays. Choosing Off-Peak train tickets means benefiting from cheaper fares and less crowded trains, making your journey more enjoyable.
Get 1/3 off with a Railcard

Get 1/3 off with a Railcard

Railcards offer discounts of up to 1/3 on most tickets. There are various types of Railcards catering to different types of travelers, such as the 16–25 Railcard, the Family & Friends Railcard, and the Senior Railcard. For more information on Railcards and how they can help you save, visit Railcards here.
Split tickets to save an average extra 30%

Split tickets to save an average extra 30%

Splitting tickets is a perfectly legal practice that involves purchasing separate, cheaper tickets for different segments of your journey on the same train instead of a single ticket for the entire trip. For example, if you are travelling from Heathrow Terminal 3 to Cardiff, you might discover that buying a ticket from A to C, and then another ticket from C to B, is more economical than a direct ticket.
Book in advance to save an average of 61%

Book in advance to save an average of 61%

Did you know that purchasing Advance Tickets can significantly reduce your travel expenses? On average, these tickets can save you an impressive 61% on fares. The best part is that the earlier you book (ideally up to 12 weeks in advance), the greater the savings!
Travel in a group to save 1/3

Travel in a group to save 1/3

If you are traveling in a group, be sure to check out group travel discounts. Many train companies offer a ⅓ off standard fares for groups of three to nine people, making traveling from Heathrow Terminal 3 to Cardiff more affordable for families, friends, or colleagues planning a trip together.

Heathrow Terminal 3 to Cardiff train ticket types

Here are different ticket types available for this route, each with their own benefits and restrictions. Here are the options to consider:

Why Book Train Tickets With Trip.com?

  • Split Tickets

    Best price promise

    If you find trains for a cheaper price elsewhere, let us know and we'll refund the difference*

  • Split Tickets

    Split Tickets

    Save an average of 30% on train fares by splitting your Heathrow Terminal 3 to Cardiff journey

  • Split Tickets

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  • Split Tickets

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*After comparing the full year of 2023 for SplitTickets and full-price tickets on Trip.com, the average savings rate for SplitTickets is 30%.