Below you can find the flight schedule for Calgary to Houston for May. If you are looking for flight fares, please check the cheap flights Calgary to Houston, or you can use the search form at the top.
| Airline | Flight number | Departure | Arrival | Flight time |
| Air Canada | AC8102 | 09:40 | 14:34 | 3h 54m |
| Air Canada | AC8104 | 17:15 | 22:09 | 3h 54m |
| Lufthansa | LH750 | 13:55 | 19:00 | 4h 5m |
| United Airlines | UA1915 | 00:55 | 06:39 | 4h 44m |
| United Airlines | UA1633 | 06:00 | 11:05 | 4h 5m |
| United Airlines | UA1607 | 07:30 | 09:16 | 46m |
| United Airlines | UA1946 | 08:05 | 10:53 | 1h 48m |
| United Airlines | UA8404 | 09:50 | 14:44 | 3h 54m |
| United Airlines | UA750 | 11:45 | 15:15 | 2h 30m |
| WestJet | WS1540 | 07:30 | 12:30 | 4h 0m |
| WestJet | WS1572 | 12:15 | 17:22 | 4h 7m |
| WestJet | WS1576 | 18:45 | 23:48 | 4h 3m |
Cheap flights Calgary to Houston.
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