Cancún (CUN) to Seattle / Tacoma (SEA) cheap flight deal from $313 USD in economy class

ASAlaska Airlines, Inc.

Round Trip•Economy

CUN

Cancún International Airport

Cancún, Mexico

SEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

$624 USD

-50%$313 USD

Verified about 13 hours ago

October 2025

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

29$449 30$363 1$381 2$381 3$382 4$313 5$313 6$313 7$313 8$313 9$313 10$313 11$409 12$451 13$409 14$333 15$313 16$313 17$313 18$364 19$409 20$409 21$313 22$313 23$350 24$350 25$461 26$461 27$400 28$400 29$400 30$350 31$350 1$417 2$490

Extremely Rare Availability

3% of dates checked are available within 10% of the lowest price

Monday, October 13th, 2025

10 round-trip options

Returning

Sat, Oct 18, 2025•5 Day Trip

$500 USD

Google Flights

Returning

Sun, Oct 19, 2025•6 Day Trip

$409 USD

Google Flights

Returning

Mon, Oct 20, 2025•7 Day Trip

$409 USD

Google Flights

Returning

Tue, Oct 21, 2025•8 Day Trip

$430 USD

Google Flights

Returning

Wed, Oct 22, 2025•9 Day Trip

$507 USD

Google Flights

Returning

Thu, Oct 23, 2025•10 Day Trip

$507 USD

Google Flights

Returning

Fri, Oct 24, 2025•11 Day Trip

$461 USD

Google Flights

Returning

Sat, Oct 25, 2025•12 Day Trip

$469 USD

Google Flights

Returning

Sun, Oct 26, 2025•13 Day Trip

$430 USD

Google Flights

Returning

Mon, Oct 27, 2025•14 Day Trip

$409 USD

Google Flights