Bus from Cardiff to Heathrow: Tickets & Schedules

Next bus departures

Next departures for Cardiff to Heathrow on March 18
Operated byVehicle typeDeparture timeDeparture locationTrip durationArrival timeArrival locationRecommendedPrice and booking link
National ExpressBus
Cardiff Coach Station - Sophia Gardens
Heathrow Airport (LHR) T5Cheapest
National ExpressBus
Cardiff Gate (Event services only, Coach Park)
Heathrow T2 & T3Fastest
National ExpressBus
Sophia Gardens
Heathrow T2 & T3No tags
National ExpressBus
Sophia Gardens
Heathrow T2 & T3No tags
National ExpressBus
Sophia Gardens
Heathrow T2 & T3No tags

Last refresh of the prices: Yesterday at 9:42 PM GMT.

Compare 2 ways to go from Cardiff to Heathrow

We recommend taking the bus

Among the sustainable travel choices, the Bus stands out as a good way to reach Heathrow. The journey takes about 3 hours 30 minutes, and with fares starting at just $16, it presents an excellent value for a comfortable ride.

80bus per day
3h 30mAverage Duration
189 kmDistance
5kgCO₂ emissions
Average Price$16 - $106Average Duration3h 30m
5kg CO₂e
Average Price$324 - $324Average Duration3h 21m
4kg CO₂e

Frequently asked questions about travelling from Cardiff to Heathrow by bus

Please note that schedules, routes, or operator details shown here may be updated or vary at the time of your trip.

  1. How much is the bus ticket from Cardiff to Heathrow?

    The cheapest bus tickets from Cardiff to Heathrow start from $16. The average price for this route is around $36. Busbud recommends that you book your tickets in advance for a better chance to get the lowest possible price.

  2. How long is the bus ride from Cardiff to Heathrow?

    The average bus travel time from Cardiff to Heathrow is 3h 30m, covering a distance of 189 km. The quickest bus can get you there in 2h 25m and is operated by National Express.

  3. Which bus companies service the Cardiff to Heathrow route?

    Several major bus companies operate on this route with 80 buses available per day, including services from National Express, FlixBus.

  4. What are the earliest and latest departure times for the bus from Cardiff to Heathrow?

    The earliest bus departs from Cardiff to Heathrow at 12:45am. And the latest bus departs at 11:40pm.

  5. What are the CO₂ emissions for the bus trip from Cardiff to Heathrow?

    A bus trip from Cardiff to Heathrow generates an estimated 5 kg of CO₂, making it a highly eco-friendly travel option and a mode of travel recommended by Busbud.

  6. What is the best bus company from Cardiff to Heathrow?

    According to Busbud customers, the highest-rated bus company on this route is National Express, with an average rating of 4.2 out of 5 stars based on 29875 reviews.

  7. Which bus company has the best Wi-Fi from Cardiff to Heathrow?

    Based on Busbud reviews, the bus company National Express has the highest Wi-Fi rating with a score of 3.4.

  8. Which bus company has the best on-time performance from Cardiff to Heathrow?

    According to Busbud traveller reviews, the most punctual bus company on this route is National Express, with a punctuality rating of 4.1 out of 5 stars.

  9. Which bus company has the cleanest buses from Cardiff to Heathrow?

    According to Busbud traveller reviews, the bus company with the cleanest buses on this route is National Express, with a cleanliness rating of 4.7 out of 5 stars.

Find cheapest prices for buses

Price is for a one-way ticket for one passenger and based on past searches.

Best price found
03-15
$31
03-16
$33
Today
$29
03-18
$24
03-19
$21
03-20
$24
03-21
$21
03-22
$25
busbud logoThe cheapest trip from Cardiff to Heathrow was searched and found on Mar 19, 2026 with a price of $21

To save money and be sure you have the best seat, it's a good idea to buy your bus tickets from Cardiff to Heathrow, as early as possible.

You can expect to pay from $21 to $124 for a bus ticket from Cardiff to Heathrow based on the last 2 days. You can expect to find the cheapest price for the trip at $21 which is on 2026-03-19.

People from around the world trust Busbud