Great Western Railway
Heathrow Express
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Each fare is the lowest adult economy ticket fare found by our customers on Trainline. Fares booked further in advance than the dates displayed may be cheaper. Prices are updated daily, subject to change and indicative of price last update. Limited availability. Discount cards and coach journeys excluded, prices exclusive of booking fee.
Trains to Heathrow Airport from Cardiff Bay
It takes an average of 4h 36m to travel from Cardiff Bay to Heathrow Airport by train, over a distance of around 117 miles (188 km). There are normally 11 trains per day travelling from Cardiff Bay to Heathrow Airport and tickets for this journey start from £64.70 when you book in advance.
| First train | 05:38 | |
|---|---|---|
| Last train | 23:11 | |
| Departure station | Cardiff Bay | |
| Arrival station | Heathrow Airport | |
| Journey time | From 2h 53m | |
| Distance | 117 miles (188 km) | |
| Frequency | 11 trains per day | |
| Changes | 2 changes | |
| Price | From £64.70 | |
| Train operators | Great Western Railway, Heathrow Express, Transport for Wales |
What are the train times from Cardiff Bay to Heathrow Airport?
Get from Cardiff Bay to Heathrow Airport in as little as 2 hours 53 minutes on the fastest trains, so you can make the most of your time.
The average train journey from Cardiff Bay to Heathrow Airport takes around 4 hours 36 minutes. There are around 11 trains that operate on this route daily.
As there are no direct trains between Cardiff Bay and Heathrow Airport, you'll need to make 2 changes.
Trains on this route are operated by Great Western Railway, Transport for Wales and Heathrow Express.
Tickets for this journey start from £64.70. Booking in advance often results in cheaper ticket prices.
With our Journey Planner, you can check live train times, compare prices and check routes.
What do people frequently ask about the train journey from Cardiff Bay to Heathrow Airport?
Want to know more about your journey from Cardiff Bay to Heathrow Airport? We've compiled some of the most frequently asked questions by our customers to help you plan your journey.
Can you take a train directly from Cardiff Bay to Heathrow Airport?
How close is Cardiff Bay to Heathrow Airport by train?
Is it possible to get from Cardiff Bay to Heathrow Airport without flying?
What is the best way to travel from Cardiff Bay to Heathrow Airport?
What time does the first train from Cardiff Bay to Heathrow Airport leave?
What time does the last train from Cardiff Bay to Heathrow Airport leave?
How often are trains from Cardiff Bay to Heathrow Airport?
Do you need to book the train from Cardiff Bay to Heathrow Airport in advance?
How do I find cheap train tickets from Cardiff Bay to Heathrow Airport?
As most UK train companies increase their prices as the departure date approaches, our Trainline team of experts have put together these tips to help you find the cheapest tickets.
1. Book in advance
Train tickets from Cardiff Bay to Heathrow Airport start at £64.70§ one way for a Standard Class ticket if you book in advance. UK train companies usually release Advance tickets up to 12 weeks ahead of time, and these can be cheaper than tickets bought on the day of travel.
2. Sign up to Ticket Alert
If you're planning a trip more than 12 weeks ahead, sign up to our Ticket Alert to get notified when Advance tickets are released for your travel date.
3. Use a Railcard
National Railcards offer a 1/3 off eligible train tickets in the UK and can be a great investment if you travel throughout the year. Buy one with us and you'll be able to store it digitally in our app, so you'll always have it on your travels.
4. Book split tickets
Our handy feature SplitSave will 'split' your train journey into multiple tickets, which can be much cheaper than buying a single ticket. Find out more about split tickets.
5. Travel Off-Peak
If you can be flexible with your travel times, Off-Peak and Super Off-Peak tickets are usually cheaper in the UK. Generally, Off-Peak times are any time at weekends and outside of Monday to Friday morning and evening rush hours.
6. Consider a Season Ticket
Best for commuters, if you catch a train on the same route more than 3 times per week, you could save money with a Season Ticket. With annual, monthly, weekly and flexi options available, find out if a Season Ticket for Cardiff Bay to Heathrow Airport is right for you.
For more money-saving tips on UK and European train travel, read our cheap train tickets guide.
§Advance adult single fare. Excludes booking fee. Prices seen by Trainline customers in the last 30 days. Availability limited.