Fly rom Washington DC to Cozumel for $278 round-trip on Delta.
Searching Delta.com, we found seats departing IAD on Friday, January 5, returning from CZM on Wednesday, January 10.
This fare is available on a handful of dates in early/mid January, with slightly higher fares ($282) for travel in December and January.
See our Washington Dulles fare listings for a complete look at current finds.
Need a room in Cozumel? Here's what's available for the above dates on Hotelwatchdog.