How much is the bus ticket from Cardiff to Heathrow?

The cheapest coach tickets from Cardiff to Heathrow start from £9. The average price for this route is around £22. Busbud recommends that you book your tickets in advance for a better chance to get the lowest possible price.

How long is the bus journey from Cardiff to Heathrow?

The average bus journey time from Cardiff to Heathrow is 3h 30m, covering a distance of 115 miles. The fastest bus can take you there in 2h 25m and is operated by National Express .

Which bus companies service the Cardiff to Heathrow route?

Several major bus companies operate on this route with 74 buses available per day, including services from National Express , FlixBus .

What is the earliest and latest departure time for the bus from Cardiff to Heathrow?

The earliest bus departs from Cardiff to Heathrow at 00:45. And the latest bus departs at 23:40.

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

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

Which 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 29762 reviews.

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

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

Which bus company offers the most punctual service 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.

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.

Bus Cardiff to Heathrow from £7 | Refundable Tickets

Next bus departures

Next departures from Cardiff to Heathrow on 15 December
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Bus	16:45	Cardiff North Road (Friary Gardens)	3h 45m	20:30	Heathrow Airport, Central Bus Station	Cheapest
Bus	23:40	Sophia Gardens	3h 20m	03:00	Heathrow T2 & T3	Fastest
Bus	16:30	Sophia Gardens	3h 35m	20:05	Heathrow T2 & T3	No tags
Bus	23:35	Cardiff North Road (Friary Gardens)	4h 30m	04:05	Heathrow Airport, Central Bus Station	No tags
Bus	16:30	Sophia Gardens	3h 35m	20:05	Heathrow T2 & T3	No tags

Next departures from Cardiff to Heathrow on 16 December
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Bus	16:45	Cardiff North Road (Friary Gardens)	3h 45m	20:30	Heathrow Airport, Central Bus Station	Cheapest
Bus	01:55	Cardiff Gate (Event services only, Coach Park)	2h 35m	04:30	Heathrow T2 & T3	Fastest
Bus	01:40	Sophia Gardens	2h 50m	04:30	Heathrow T2 & T3	No tags
Bus	00:45	Cardiff North Road (Friary Gardens)	3h 20m	04:05	Heathrow Airport, Central Bus Station	No tags
Bus	01:40	Sophia Gardens	2h 50m	04:30	Heathrow T2 & T3	No tags

Next departures from Cardiff to Heathrow on 21 December
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Bus	02:45	Cardiff North Road (Friary Gardens)	3h 20m	06:05	Heathrow Airport, Central Bus Station	Cheapest
Bus	02:05	Cardiff Gate (Event services only, Coach Park)	2h 25m	04:30	Heathrow T2 & T3	Fastest
Bus	01:50	Sophia Gardens	2h 40m	04:30	Heathrow T2 & T3	No tags
Bus	00:45	Cardiff North Road (Friary Gardens)	3h 20m	04:05	Heathrow Airport, Central Bus Station	No tags
Bus	01:50	Sophia Gardens	2h 40m	04:30	Heathrow T2 & T3	No tags

Last refresh of the prices: Yesterday at 22:49 GMT.

Compare 3 ways to travel from Cardiff to Heathrow

We recommend carpooling

Among the sustainable travel choices, the carpool stands out as a good way to reach Heathrow. The journey takes about 2 hours 40 minutes and with fares starting at just £11, it presents an excellent value for a comfortable ride.

1carpool per day

2h 40mAverage duration

117 milesDistance

8kgCO₂ emissions

	Average price	Average duration	CO₂ emissions
Bus	Average price£9 - £106	Average duration3h 30m	CO₂ emissions 5kg CO₂e
Train	Average price£177 - £177	Average duration3h 21m	CO₂ emissions 4kg CO₂e
Carpool	Average price£11 - £23	Average duration2h 40m	CO₂ emissions 8kg CO₂e

Where are the popular stops in Cardiff and Heathrow?

Stops in Cardiff

A
Cardiff Coach Station - Sophia Gardens
22 Cathedral Rd, Cardiff CF11 9LJ, UK
Visit page
B
Sophia Gardens
2 Sophia Cl, Cardiff CF11, UK
Visit page
C
Cardiff University (o/s Cathays Rail Stn)
50 Park Place (Bus Stop, o/s Cathays Rail Stn), Cardiff CF10
D
Cardiff - Castle Street Bus Stop
21A Castle St, Cardiff CF10 1BT, UK
E
National Museum
Gorsedd Gardens Rd, Cardiff CF10 3NP, UK
F
Cardiff Bus Stop - Westgate
206 Westgate St, Cardiff CF10, UK

Stops in Heathrow

A
London Heathrow Airport
Visit page
B
Travelodge Hotel, Heathrow Central
708 Bath Road, Hounslow TW5 9TW
C
Premier Inn, Heathrow M4 J4
Shepiston Lane (Valid any Departure), Hayes UB3
D
Comfort Hotel
Arlington Court, Mercure London Heathrow Hotel: Valid any Departure , Hayes UB3
E
EasyHotel
2 Bletchmore Close, Hayes UB3
F
Novotel Hotel
Holloway Lane, Valid any Departure, West Drayton UB7

Compare bus companies

National Express

4/529,770 reviews

Staff4.7

Timeliness4

Cleanliness4.7

WiFi3.4

Passengers frequently commend the professionalism and efficiency of drivers, as well as the cleanliness and comfort of buses. Many appreciate timely arrivals at destinations like Heathrow Airport. However, some users mention occasional delays or issues with terminal drop-offs not matching their requests. Overall, National Express is praised for its reliable service despite minor inconveniences reported by a few travelers.

National Express Cardiff Heathrow recent customer reviews

I'm not satisfied. I was supposed to get to Terminal 4 at 04:00pm, but I got there at 05:38pm despite the fact that the traffic was mild. It was my first time to Heathrow, the feeling and experience wasn't good.

Austin E.

9 December 2025

Staff were nice. Journey was slow and bus was cold, especially the emergency exit row where we first sat. Arrived 30 mins late, which isn’t great for the airport

Dewi P.

28 December 2024

Coach came a few minutes late. Changed drivers . Although late arriving at Heathrow. Ran smoothly.

Wayne S.

10 November 2024

FlixBus

3.5/511,621 reviews

Staff4.2

Timeliness3.9

Cleanliness4.1

WiFi2.7

Based on 11621 reviews, the company was rated 3.5 stars on Busbud. Travellers were especially satisfied with the ticket access and the staff but often complained with the Wi-Fi. FlixBus ticket prices on this trip start at £13

Flixbus Cardiff Heathrow recent customer reviews

The journey was super easy with convenient pick up location and really good connection at Heathrow to the airport terminal. It would be nice to have the stops called a little louder as we couldn’t hear at the back of the bus.

Andrej F.

9 August 2025

GB Bus Companies: FlixBus, BlaBlaCar Bus, ALSA, Greyhound, Intercape, Trenitalia, National Express

Frequently asked questions about travelling by bus from Cardiff to Heathrow

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

How much is the bus ticket from Cardiff to Heathrow?
The cheapest coach tickets from Cardiff to Heathrow start from £9. The average price for this route is around £22. Busbud recommends that you book your tickets in advance for a better chance to get the lowest possible price.
How long is the bus journey from Cardiff to Heathrow?
The average bus journey time from Cardiff to Heathrow is 3h 30m, covering a distance of 115 miles. The fastest bus can take you there in 2h 25m and is operated by National Express.
Which bus companies service the Cardiff to Heathrow route?
Several major bus companies operate on this route with 74 buses available per day, including services from National Express, FlixBus.
What is the earliest and latest departure time for the bus from Cardiff to Heathrow?
The earliest bus departs from Cardiff to Heathrow at 00:45. And the latest bus departs at 23:40.
What are the CO₂ emissions for the bus trip from Cardiff to Heathrow?
A bus journey from Cardiff to Heathrow produces an estimated 5 kg of CO₂, making it a highly eco-friendly choice and a mode of travel recommended by Busbud.
Which 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 29762 reviews.
Which company has the best Wi-Fi from Cardiff to Heathrow?
Based on Busbud reviews, the bus company National Express has the best Wi-Fi rating with a score of 3.4.
Which bus company offers the most punctual service 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.
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

13/12

£23

14/12

£24

Today

£19

16/12

£17

17/12

£16

18/12

£15

19/12

£18

20/12

£31

The cheapest trip from Cardiff to Heathrow was searched and found on 18 Dec 2025 with a price of £15

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 £15 to £65 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 £15, which is on 2025-12-18.

Usually National Express will charge you higher prices for tickets closer to the departure date. To find the best prices, you should be flexible on your date of travel.