The average bus between Cardiff and Ickenham takes 4h 20m and the fastest bus takes 3h 36m. There is a bus service every few hours from Cardiff to Ickenham. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run hourly between Cardiff and Ickenham. The earliest departure is at 1:40 AM at night, and the last departure from Cardiff is at 11:40 PM which arrives into Ickenham at 4:24 AM. All services require a transfer, and take on average 4h 20m. The schedules shown below are for the next available departures.

3h 53m • 1 change

3h 52m • 1 change

4h 47m • 1 change

4h 24m • 1 change

3h 53m • 1 change

3h 52m • 1 change

4h 47m • 1 change

4h 24m • 1 change

3h 39m • 1 change

4h 13m • 1 change

3h 40m • 1 change

4h 20m • 1 change
Want to know about travelling from Cardiff to Ickenham? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct bus from Cardiff to Ickenham. However, there are services departing from Cardiff station and arriving at Ickenham station via Heathrow Central Bus Station station. The journey, including transfers, takes approximately 4h 20m.
Cardiff to Ickenham bus services, operated by National Express, depart from Sophia Gardens station.
Cardiff to Ickenham bus services, operated by National Express, arrive at Austins Lane station.
The distance between Cardiff and Ickenham is 189.5 km. The road distance is 237 km.
You can take a bus from Sophia Gardens to Austins Lane via Heathrow Central Bus Station in around 3h 50m.