Cheapest return SEA–MEX flights, May

AirHint found the following cheapest return flights from Seattle (SEA) to Mexico City (MEX) in May 2026 (see full year).

Return flights

29 May - 05 Jun Volaris
24 May - 31 May Volaris
23 May - 31 May Volaris
23 May - 24 May Volaris
22 May - 26 May Volaris
21 May - 25 May Volaris
29 May - 05 Jun Delta direct
23 May - 31 May Aeromexico direct
23 May - 24 May Aeromexico direct
21 May - 25 May Aeromexico direct
22 May - 26 May Aeromexico direct

Also check the deals for one-way flights from Seattle to Mexico City in May.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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