Cheap flights from Seattle to Cancun South

View AU$243 flight on Fri, 17 Oct. 2025Opens in a new window

Popular airlines from Seattle to Cancun South

  • Jetstar

    Jetstar

  • Qantas Airways

    Qantas Airways

  • Virgin Australia

    Virgin Australia

  • Scoot

    Scoot

  • American Airlines

    American Airlines

  • Emirates

    Emirates

  • United

    United

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Cheap Flights from Seattle (SEA) to Cancun South (CUN)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, 10 Oct. - Fri, 17 Oct.
SEA
Seattle
CUN
Cancun
AU$523 Return, found 5 days ago
AU$523
Return
found 5 days ago
Select Delta flight, departing Fri, 10 Oct. from Seattle to Cancun, returning Fri, 17 Oct., priced at AU$523 found 5 days ago
Delta
Fri, 17 Oct. - Fri, 24 Oct.
SEA
Seattle
CUN
Cancun
AU$527 Return, found 3 days ago
AU$527
Return
found 3 days ago
Select Delta flight, departing Fri, 17 Oct. from Seattle to Cancun, returning Fri, 24 Oct., priced at AU$527 found 3 days ago
Aeromexico
Tue, 9 Sep. - Mon, 15 Sep.
SEA
Seattle
CUN
Cancun
AU$537 Return, found 5 days ago
AU$537
Return
found 5 days ago
Select Aeromexico flight, departing Tue, 9 Sep. from Seattle to Cancun, returning Mon, 15 Sep., priced at AU$537 found 5 days ago
Alaska Airlines
Fri, 10 Oct. - Fri, 17 Oct.
SEA
Seattle
CUN
Cancun
AU$562 Return, found 5 days ago
AU$562
Return
found 5 days ago
Select Alaska Airlines flight, departing Fri, 10 Oct. from Seattle to Cancun, returning Fri, 17 Oct., priced at AU$562 found 5 days ago
American Airlines
Sat, 13 Sep. - Tue, 16 Sep.
SEA
Seattle
CUN
Cancun
AU$592 Return, found 5 days ago
AU$592
Return
found 5 days ago
Select American Airlines flight, departing Sat, 13 Sep. from Seattle to Cancun, returning Tue, 16 Sep., priced at AU$592 found 5 days ago
United
Sat, 13 Sep. - Tue, 16 Sep.
SEA
Seattle
CUN
Cancun
AU$607 Return, found 5 days ago
AU$607
Return
found 5 days ago
Select United flight, departing Sat, 13 Sep. from Seattle to Cancun, returning Tue, 16 Sep., priced at AU$607 found 5 days ago

Find the cheapest month to fly from Seattle (SEA) to Cancun (CUN)

September is typically the cheapest month to fly

From AU$464 - AU$598 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.