Roundtrip Nonstop Washington DC to Cancun Flights

Round-trip United Airlines flights from Washington D.C. (IAD) to Cancun (CUN) are available for $250. This price applies to basic economy fares, which include a personal item but do not allow for seat selection, a carry-on bag, or changes. Per United Airlines policy, passengers traveling with children will be seated together.

Travel is available on select dates in October and November 2025.

Travel Availability

• Departures from IAD: October 12-15, 19-21, 24, 26-28; November 2-4, 10-12
• Returns: October 15-17, 21-24, 29-30; November 6, 13-14

This deal is available through November 30, 2025.