Skip to main content

Cardiff to London Heathrow Airport Bus Tickets & Schedules

Connecting you to the world

Endless possibilities. Discover over 8,000 destinations across more than 40 countries.

Comfort on the go

Kick back with free Wi-Fi, power outlets, and extra leg space. That's what modern buses are all about.

Choose, book, travel

From your screen to your seat in seconds. You do the booking, we'll take care of the rest.

Planet-smart travel

Drop the car, travel with us. Increase your mileage and reduce your carbon footprint.

What to expect of your trip

Fast, easy, and affordable options from Cardiff to London Heathrow Airport

Avg. trip duration

3 h 29 min

Card icon

Avg. distance

243 km

Card icon

Cheapest trip

From $21.98

Card icon

12

Avg. trips a day

Card icon

On this page

Bus stations and stops in Cardiff

Please note: your ticket will contain the most up-to-date address information.
Best service on board
Available options you can find for a more comfortable trip:
wifi
Free WiFi
Stay connected throughout your journey
socket
USB outlets
Keep your devices charged on the go
seat
Comfortable seats
Relax with extra legroom and reclining seats
luggage
Luggage storage
Space to safely stow your belongings
toilet
Toilets
Conveniently available on every FlixBus
First time travelling with us?
More on our service
Amenities Hero Image
Where to next?
Discover our travel map with over 8000 destinations worldwide.
Explore the map
Vehicle passing through a city

Frequently asked questions

The bus from Cardiff to London Heathrow Airport takes 3 hours 20 minutes and the bus route covers 243 km.
The bus Cardiff to London Heathrow Airport starts from $21.98. Take advantage of our best deals on bus tickets by traveling off-peak and during the week. You can buy your bus ticket from Cardiff to London Heathrow Airport most easily on this website or in the app.
We offer several payment methods for buying your bus ticket from Cardiff to London Heathrow Airport. To complete your bus booking, you can choose among card payment, PayPal, Google Pay, and many mor. If you buy your bus ticket onboard or at a sales point, cash payment is also available.
When traveling from Cardiff to London Heathrow Airport by bus, you can track your bus location using our Real-Time Bus Tracker. Just select the relevant bus stop and check the time of arrival. Find out where your bus is and check if there are delays on the route. To track your bus on the go, you can also download the FlixBus App.
The earliest bus from Cardiff to London Heathrow Airport departs at 00:45.
The last bus Cardiff to London Heathrow Airport departs at 23:35.
No, you don't need to print your ticket for the bus from Cardiff to London Heathrow Airport. Simply show your ticket on your smartphone or tablet to the driver upon boarding.
FlixBus buses traveling from Cardiff to London Heathrow Airport offer extra legroom, private outlets, and restrooms. Most buses also provide free Wi-Fi. During the booking process, you can also reserve a seat for your bus to London Heathrow Airport. Choose from various seat types like panorama, table, and bed seats. Traveling by bus from Cardiff to London Heathrow Airport is one of the most environmentally-friendly options available as it reduces traffic-associated emissions, and passengers can offset their carbon emissions when they travel with FlixBus by clicking the CO₂ compensation box when booking their ticket.
Traveling by bus from Cardiff to London Heathrow Airport is one of the most environmentally-friendly options available as it reduces traffic-associated emissions, and passengers can offset their carbon emissions when they travel with FlixBus by clicking the CO₂ compensation box when booking their ticket.
Passengers traveling from Cardiff to London Heathrow Airport can bring one checked luggage (50x80x30 cm, up to 20 kg) and two piece of hand luggage (30x42x18 cm, up to 7kg) for free.
Person using FlixBus app

Get ready!

Bus arriving in 3 mins.

Scan to download the App
Get the app and travel with ease of mind

Get live updates with push notifications and track your trip in real time. All of your travel details in one place.

android store img app store img

Onboard services are subject to availability