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Cheapest one-way flights from Seattle (SEA) to Mexico City (MEX), December

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Dates, airline, and price
Dates	Airline	Price
24 Dec	Volaris
23 Dec	Volaris
22 Dec	Frontier Airlines
24 Dec	Aeromexico Direct Flight
23 Dec	Aeromexico Direct Flight
22 Dec	Delta Direct Flight

deals for return flights from Seattle to Mexico City in December.

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Updated Jul 13, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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Cheapest one-way flights from Seattle (SEA) to Mexico City (MEX), December

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