AirHint found the following cheapest return flights from Calgary (YYC) to Porto (OPO) in April 2026 (see full year).
Return flights
| 13 Apr - 20 Apr | WestJet | ||
| 24 Apr - 09 May | WestJet | ||
| 01 Apr - 16 Apr | Air Transat | ||
| 03 Apr - 06 Apr | WestJet |
Also check the deals for one-way flights from Calgary to Porto in April.
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