Cheapest return flights from Seattle to Cancun in October from $324

AirHint found the following cheapest return flights from Seattle (SEA) to Cancun (CUN) in October 2025 (see full year).

Return flights

12 Oct - 17 Oct Aeromexico direct
10 Oct - 12 Oct Frontier Airlines
06 Oct - 11 Oct Aeromexico
27 Oct - 30 Oct Aeromexico
19 Oct - 26 Oct Aeromexico
17 Oct - 26 Oct Volaris
24 Oct - 28 Oct Frontier Airlines
19 Oct - 24 Oct Hawaiian Airlines direct
12 Oct - 20 Oct Aeromexico
07 Oct - 15 Oct Delta
30 Oct - 05 Nov United
30 Oct - 06 Nov United
29 Oct - 01 Nov American Airlines
31 Oct - 05 Nov American Airlines
30 Oct - 06 Nov Alaska Airlines direct
30 Oct - 05 Nov Alaska Airlines direct
29 Oct - 01 Nov Alaska Airlines direct

Also check the deals for one-way flights from Seattle to Cancun in October.

Skyscanner

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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