What is the cheapest month to fly from Dulles to Cancun?

Based on current 6-month forward fare data, June 2026 is the cheapest month to fly from Dulles (IAD) to Cancun (CUN), with fares starting from $141.

What is the lowest current fare from IAD to CUN?

The lowest currently-listed fare from Dulles (IAD) to Cancun (CUN) is $141 on 2026-06-23.

Direct flights from IAD to CUN cover approximately 2,186 km (1,358 miles), with an estimated flight time of 2h 34m. Operating airlines: UA.

Cheapest current fares: $141 in June 2026, 2,186 km direct flight in ~2h 34m.

Last updated May 24, 2026 · By Flightmaps Editorial

Lowest available fare per calendar month from Dulles (IAD) to Cancun (CUN). Refreshed daily.

What is the cheapest month to fly from Dulles to Cancun?

Based on current 6-month forward fare data, June 2026 is the cheapest month to fly from Dulles (IAD) to Cancun (CUN), with fares starting from $141.
What is the lowest current fare from IAD to CUN?

The lowest currently-listed fare from Dulles (IAD) to Cancun (CUN) is $141 on 2026-06-23.
How long is the flight from Dulles to Cancun?

Direct flights from IAD to CUN cover approximately 2,186 km (1,358 miles), with an estimated flight time of 2h 34m. Operating airlines: UA.

Sibling pages — full route detail, airport overviews, visa context, per-airline routes.