AirHint found the following cheapest return flights from Houston (IAH) to Waterloo (YKF) in December 2025 (see full year).
Return flights
| 17 Dec - 03 Jan | WestJet | ||
| 19 Dec - 05 Jan | WestJet | ||
| 22 Dec - 29 Dec | WestJet | ||
| 19 Dec - 03 Jan | WestJet | ||
| 21 Dec - 05 Jan | WestJet |
Also check the deals for one-way flights from Houston to Waterloo in December.
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