Timetable
Train route
Cheap train tickets
  1. Trip.com
  2. Trains
  3. UK Trains
  4. Routes
  5. Cardiff Bay to Heathrow Terminal 4 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

Cardiff Bay to Heathrow Terminal 4 Train prices and times

Use Trip.com to buy tickets from Cardiff Bay to Heathrow Terminal 4, starting from QAR 213.74 and averaging QAR 296.86. The entire journey takes no more than 3h 1m. If you want to get a greater discounts, consider purchasing split tickets. Additionally, buying in advance is also good choice.

View More Trains
DepartureArrivalOperator
Find Tickets
06:56
3h 16m, Changes required
Cardiff Bay
10:12
Heathrow Terminal 4
Transport for WalesGreat Western RailwayElizabeth line
Find Tickets
07:26
3h 1m, Changes required
Cardiff Bay
10:27
Heathrow Terminal 4
Transport for WalesGreat Western RailwayElizabeth line
Find Tickets
07:26
3h 16m, Changes required
Cardiff Bay
10:42
Heathrow Terminal 4
Transport for WalesGreat Western RailwayElizabeth line
Find Tickets
07:56
3h 1m, Changes required
Cardiff Bay
10:57
Heathrow Terminal 4
Transport for WalesGreat Western RailwayElizabeth line
Find Tickets
07:56
3h 16m, Changes required
Cardiff Bay
11:12
Heathrow Terminal 4
Transport for WalesGreat Western RailwayElizabeth line
Find Tickets
08:08
3h 19m, Changes required
Cardiff Bay
11:27
Paris
Transport for WalesGreat Western RailwayElizabeth line
Find Tickets

Cardiff Bay to Heathrow Terminal 4 Train Route Details

First train
First train
06:56
Last train
Last train
23:54
Departure station
Departure station
Cardiff Bay
Arrival station
Arrival station
Heathrow Terminal 4
Journey time
Journey time
3h 1m
Distance
Distance
189 km
Price
Price
QAR 213.74*
Train operators
Train operators
Elizabeth line, Great Western Railway, Transport for Wales

How to book cheap train tickets from Cardiff Bay to Heathrow Terminal 4

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 Cardiff Bay to Heathrow Terminal 4 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 Cardiff Bay to Heathrow Terminal 4, 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 typically released up to 12 weeks before the travel date and can offer significant savings compared to tickets purchased closer to departure. By planning your trip from Cardiff Bay to Heathrow Terminal 4 ahead of time and booking your tickets early, you can potentially save up to 61% on your travel expenses.
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 Cardiff Bay to Heathrow Terminal 4 more affordable for families, friends, or colleagues planning a trip together.

Cardiff Bay to Heathrow Terminal 4 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 Cardiff Bay to Heathrow Terminal 4 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 Cardiff Bay

  • Trains to Heathrow Terminal 4

  • 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%.