Cheapest return flights from Seattle to Cancun in May from $388

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 May 2025 (see full year).

Return flights

29 May - 02 Jun Spirit Airlines
25 May - 28 May Spirit Airlines
19 May - 03 Jun Frontier Airlines
26 May - 29 May Spirit Airlines
26 May - 30 May Spirit Airlines
25 May - 30 May Spirit Airlines
12 May - 17 May Frontier Airlines
14 May - 28 May Frontier Airlines
15 May - 25 May Frontier Airlines
11 May - 24 May Frontier Airlines
13 May - 20 May Frontier Airlines
24 May - 26 May Hawaiian Airlines
19 May - 03 Jun Aeromexico direct
29 May - 02 Jun Delta direct

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

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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