Cheapest one-way flights from Seattle to Cancun in July from $158

AirHint found the following cheapest one-way flights from Seattle (SEA) to Cancun (CUN) in July 2025 (see full year).

One-Way flights

29 Jul Aeromexico direct
19 Jul Frontier Airlines
18 Jul Frontier Airlines
11 Jul Frontier Airlines
11 Jul Aeromexico direct
18 Jul Aeromexico direct
19 Jul Aeromexico direct
08 Jul Aeromexico
08 Jul Aeromexico direct

Also check the deals for return flights from Seattle to Cancun in July.

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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