Washington (IAD) to Cancún (CUN) flight deal in economy from $354

United AirlinesUAUnited Airlines
Round Trip•Economy
United StatesIAD

Washington Dulles International Airport

Washington, United States
MexicoCUN

Cancún International Airport

Cancún, Mexico
$485 USD
-27%$354 USD
Verified 7 days ago
Good Availability
51% of dates checked are available within 10% of the lowest price

Monday, August 10th, 2026

3 round-trip options

Returning
Sat, Aug 15, 2026•5 Day Trip
$632 USD
Google Flights
Returning
Fri, Aug 21, 2026•11 Day Trip
$464 USD
Google Flights
Returning
Mon, Aug 24, 2026•14 Day Trip
$532 USD
Google Flights