IAD to CUN from $354 in economy – flightdeals.net

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United Airlines

UAUnited Airlines

Round Trip•Economy

Washington Dulles International Airport

Washington, United States

Cancún International Airport

Cancún, Mexico

$485 USD

-27%$354 USD

Verified 7 days ago

September 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

31$354 1$364 2$396 3$567 4$397 5$359 6$354 7$364 8$354 9$354 10$359 11$359 12$359 13$354 14$354 15$354 16$359 17$359 18$359 19$359 20$354 21$354 22$354 23$373 24$359 25$354 26$354 27$354 28$354 29$354 30$359 1$359 2$359 3$359 4$354

Good Availability

51% of dates checked are available within 10% of the lowest price

Tuesday, September 22nd, 2026

5 round-trip options

Returning

Tue, Sep 29, 2026•7 Day Trip

$364 USD

Returning

Wed, Sep 30, 2026•8 Day Trip

$354 USD

Returning

Sat, Oct 3, 2026•11 Day Trip

$354 USD

Returning

Mon, Oct 5, 2026•13 Day Trip

$369 USD

Returning

Tue, Oct 6, 2026•14 Day Trip

$369 USD