Timetable
Train route
Cheap train tickets
  1. Trip.com
  2. Trains
  3. UK Trains
  4. Routes
  5. Heathrow Airport to Cardiff Trains
UK train new user gifts 2% off trains

  • 2% OFF

    Jun 19, 2024-Jun 20, 2026

    2% OFF UK Train New User Promo Code

    Jun 19, 2024-Jun 20, 2026

Heathrow Airport to Cardiff Train prices and times

Planning a journey from Heathrow Airport to Cardiff? Trip.com offers train tickets starting from as low as DKK 193.03, with average prices for this route around DKK 483.95. To ensure you get the most affordable fares, we suggest exploring alternatives like split tickets.

  • Tue, Sep 9
    From DKK 330.05
  • Wed, Sep 10
    From DKK 330.05
  • Thu, Sep 11
    From DKK 330.05
  • Fri, Sep 12
    From DKK 351.59
  • Sat, Sep 13
    From DKK 193.03
  • Sun, Sep 14
    From DKK 351.59
  • Mon, Sep 15
    From DKK 330.05
View More Trains
DepartureArrivalOperator
Find Tickets
15:47
2h 18m, Changes required
Heathrow Terminals 2 & 3
18:05
Cardiff Central
Heathrow ExpressGreat Western Railway
Find Tickets
16:06
2h 31m, Changes required
Heathrow Terminals 2 & 3
18:37
Cardiff Central
Elizabeth lineGreat Western Railway
Find Tickets
16:17
2h 20m, Changes required
Heathrow Terminals 2 & 3
18:37
Cardiff Central
Heathrow ExpressGreat Western Railway
Find Tickets
16:25
2h 45m, Changes required
Heathrow Terminals 2 & 3
19:10
Cardiff Central
Elizabeth lineGreat Western Railway
Find Tickets
16:47
2h 23m, Changes required
Heathrow Terminals 2 & 3
19:10
Cardiff Central
Heathrow ExpressGreat Western Railway
Find Tickets
16:55
2h 41m, Changes required
Heathrow Terminals 2 & 3
19:36
Paris
Elizabeth lineGreat Western Railway
Find Tickets

Heathrow Airport to Cardiff Train Route Details

First train
First train
00:04
Last train
Last train
22:51
Departure station
Departure station
Heathrow Airport
Arrival station
Arrival station
Cardiff
Journey time
Journey time
2h 14m
Distance
Distance
118 miles
Price
Price
DKK 193.03*
Train operators
Train operators
Heathrow Express, Elizabeth line, CrossCountry

How to book cheap train tickets from Heathrow Airport to Cardiff

Traveling in off-peak train times

Traveling in off-peak train times

Off-Peak train tickets are generally cheaper than peak-time tickets, allowing travel outside morning (6:30 AM–9:30 AM) and evening (4:00 PM–7:00 PM) rush hours on weekdays. If your schedule allows for flexibility, choosing off-peak times for your trip from Heathrow Airport to Cardiff can result in significant cost savings.
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 involves buying separate, cheaper tickets for different parts of your journey on the same train instead of just one ticket for the entire trip. For instance, if you're traveling from Heathrow Airport to Cardiff, you might find that purchasing a ticket from A to C, then C to B costs less than a direct ticket. This method is perfectly legal and often doesn't require leaving your seat.
Book in advance to save an average of 61%

Book in advance to save an average of 61%

Advance Tickets are usually released up to 12 weeks before the travel date and can be significantly cheaper than tickets purchased closer to departure. By planning your trip from Heathrow Airport to Cardiff ahead of time and securing your tickets early, you can save up to 61% on the cost of your travel.
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 Airport to Cardiff more affordable for families, friends, or colleagues planning a trip together.

Heathrow Airport to Cardiff train ticket types

There are various ticket types available for this route, each with different benefits and restrictions. Explore below to see which ticket type is best suited to your travel needs:

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 Airport to Cardiff journey

  • Split Tickets

    National Rail Partners

    Official train ticket sellers with 5-star customer support

  • Split Tickets

    No Booking Fees on the App

    Only pay for your train travel – no hidden fees

Recommendations

  • Trains from Heathrow Airport

  • Trains to Cardiff

  • Popular routes

  • Top Destinations

  • Popular stations

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