Watford to Cardiff bus times
Buses run hourly between Watford and Cardiff. The earliest departure is at 5:57 AM in the morning, and the last departure from Watford is at 11:01 PM which arrives into Cardiff at 4:00 AM. All services require a transfer at Heathrow Terminal 2 and take an average of 4h 45m. The schedules shown below are for the next available departures.
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4h 18m • 1 change
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4h 43m • 1 change
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4h 25m • 1 change
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4h 40m • 1 change
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Departing Sunday, August 9, 2026
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5h 3m • 1 change
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5h 10m • 1 change
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4h 31m • 1 change
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4h 56m • 1 change
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Departing Monday, August 10, 2026
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5h 3m • 1 change
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5h 10m • 1 change
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4h 31m • 1 change
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4h 56m • 1 change
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Departing Tuesday, August 11, 2026
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5h 3m • 1 change
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5h 10m • 1 change
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4h 31m • 1 change
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4h 56m • 1 change
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.jpg "Bus Exterior")
