Cheapest return flights from Seattle to Cancun in October from $351

Best time to book flights for Seattle (SEA) to Cancun (CUN) flights at AirHint

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

Return flights

10 Oct - 13 Oct Aeromexico
11 Oct - 18 Oct Aeromexico
28 Oct - 31 Oct Aeromexico
28 Oct - 31 Oct Alaska Airlines direct
30 Oct - 04 Nov Aeromexico
11 Oct - 18 Oct Aeromexico direct
10 Oct - 13 Oct Hawaiian 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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