Belfast (Aldergrove) Airport (BFS) to Castleknock bus times
Buses run every 3 hours between Belfast (Aldergrove) Airport (BFS) and Castleknock. The earliest departure is at 2:20 AM at night, and the last departure from Belfast (Aldergrove) Airport (BFS) is at 6:20 PM which arrives into Castleknock at 10:25 PM. All services require a transfer at The Gresham Hotel and take an average of 4h 15m. The schedules shown below are for the next available departures.
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4h 30m • 1 change
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4h 5m • 1 change
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3h 55m • 1 change
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4h 20m • 1 change
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Departing Thursday, August 20, 2026
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4h 30m • 1 change
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4h 5m • 1 change
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3h 55m • 1 change
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4h 20m • 1 change
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Departing Friday, August 21, 2026
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4h 3m • 1 change
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4h 13m • 1 change
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4h 15m • 1 change
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4h 15m • 1 change
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Departing Saturday, August 22, 2026
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5h 3m • 1 change
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4h 8m • 1 change
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4h 13m • 1 change
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4h 13m • 1 change
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Departing Sunday, August 23, 2026
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4h 31m • 1 change
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4h 14m • 1 change
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3h 57m • 1 change
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4h 23m • 1 change
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Departing Monday, August 24, 2026
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4h 31m • 1 change
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4h 14m • 1 change
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3h 57m • 1 change
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4h 23m • 1 change
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