AirHint found the following cheapest return flights from Portland (PDX) to Mexico City (MEX) in March 2026 (see full year).
Return flights
| 06 Mar - 09 Mar | Volaris | ||
| 25 Mar - 31 Mar | Volaris | ||
| 18 Mar - 25 Mar | Volaris | ||
| 13 Mar - 18 Mar | Volaris | ||
| 14 Mar - 18 Mar | Volaris | ||
| 29 Mar - 01 Apr | Delta | ||
| 20 Mar - 26 Mar | Volaris | ||
| 21 Mar - 27 Mar | Volaris |
Also check the deals for one-way flights from Portland to Mexico City in March.
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