Today's drop ·
Cheap flights from Washington Dulles to Cancún
$499 round trip right now, 26% under the $678 this route usually costs.

How cheap is this?
Telly prices every departure date in the next week on this route, for trips of 2 to 14 nights, and measures each fare against what the route usually costs. The cheapest round trip right now is $499 on Air Canada, 1 stop, against a usual $678. 26% below the usual fare.
When to go
The cheapest dates fall in Nov, for trips of 3 to 12 nights. Nov in Cancún runs around 84°. The dates come picked because a cheap fare only exists on certain days; the exact ones and the booking link are in the app.
Passport required
Cancún is outside the US and Canada, so you need a passport. Every flight on Telly leaves the country; that is the whole filter.
Questions about this route
How much is a flight from Washington Dulles to Cancún?+
Right now $499 round trip, on Air Canada. The route usually costs $678, so this fare is 26% under. Checked Nov 4, 2026.
When are the cheapest dates to fly to Cancún?+
The cheapest dates Telly found are in Nov, for trips of 3 to 12 nights. It prices every departure date in the next week on this route and keeps only the lowest. The exact dates are in the app.
Do I need a passport to fly from Washington Dulles to Cancún?+
Yes. Cancún is outside the US and Canada, and every flight on Telly leaves the country, so every one needs a passport.





