Dallas (DFW) to Cancun (CUN): 1,030 miles (1,657 km) great-circle, about 2h 35m nonstop by our estimate. Cheapest fare observed: $248 round-trip on Frontier, with 1 stop, departing May 16, 2026.
$248 round-trip, Frontier F91524, departing 2026-05-16 at 16:09, returning 2026-05-23. The recorded itinerary left on a Saturday, returning on a Saturday 7 nights later; the fare was observed 21 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $248, it ranked 19th of the 30 round-trip fares we recorded from DFW (median $198). That is 24.1 cents per great-circle mile (round-trip price over one-way distance), above the DFW median of 15.9 cents across 30 round-trip routes.
Routes from DFW of similar length: Las Vegas (1,053 mi) at $160 and Detroit (986 mi) at $142.
Frontier had the cheapest fare on 18 of 30 DFW routes. It is the 20th longest of the 30 routes we track from DFW.
Of 25 departure airports with a fare to Cancun, Dallas (DFW) ranked 5th at $248. Lowest: $127 from Mexico City (MEX); highest: $2060 from Perth (PER); 4 nonstop. Cheapest-fare airlines (routes): Frontier (6), Aeromexico (4), Air Canada (3), American Airlines (2), Viva Aerobus (2) and AirAsia (1), plus 7 more.
That depends on your passport and trip, so check the official source for Mexico: Instituto Nacional de Migracion (Mexico). Connecting elsewhere? Check that country's transit rules too.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Chicago, America/Cancun; flight time is our estimate.