AirHint found the following cheapest return flights from Waterloo (YKF) to Lisbon (LIS) in April 2026 (see full year).
Return flights
| 23 Apr - 16 May | Flair Airlines | ||
| 29 Apr - 09 May | WestJet | ||
| 25 Apr - 08 May | WestJet | ||
| 21 Apr - 26 May | WestJet | ||
| 21 Apr - 28 Apr | WestJet | ||
| 28 Apr - 04 May | WestJet | ||
| 23 Apr - 03 May | WestJet |
Also check the deals for one-way flights from Waterloo to Lisbon in April.
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