AirHint found the following cheapest return flights from Portland (PDX) to Madrid (MAD) in April 2026 (see full year).
Return flights
| 01 Apr - 15 Apr | British Airways | ||
| 18 Apr - 30 May | Condor | ||
| 18 Apr - 18 May | KLM | ||
| 05 Apr - 18 Apr | British Airways |
Also check the deals for one-way flights from Portland to Madrid in April.
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