Poissy to Guyancourt bus times
Buses run hourly between Poissy and Guyancourt. The earliest departure is at 5:28 AM in the morning, and the last departure from Poissy is at 9:45 PM which arrives into Guyancourt at 10:59 PM. All services require a transfer at Saint-Quentin - Gare routière Paul Delouvrier and take an average of 1h 2m. The schedules shown below are for the next available departures.
Departing Monday, November 2, 2026
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1h 15m • 1 change→
51 min • 1 change→
50 min • 1 change→
1h 5m • 1 change- Show more
Departing Tuesday, November 3, 2026
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1h 15m • 1 change→
51 min • 1 change→
50 min • 1 change→
1h 5m • 1 change- Show more
Departing Wednesday, November 4, 2026
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1h 15m • 1 change→
51 min • 1 change→
50 min • 1 change→
1h 5m • 1 change- Show more
Departing Thursday, November 5, 2026
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1h 15m • 1 change→
51 min • 1 change→
50 min • 1 change→
1h 5m • 1 change- Show more
Departing Friday, November 6, 2026
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1h 15m • 1 change→
51 min • 1 change→
50 min • 1 change→
1h 5m • 1 change- Show more
Departing Saturday, November 7, 2026
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42 min • 1 change→
1h 9m • 1 change→
55 min • 1 change→
1h 10m • 1 change- Show more