Houston (IAH) to Cancun (CUN): 812 miles (1,307 km) great-circle, about 2h 05m nonstop by our estimate. Cheapest fare observed: $199 round-trip on Frontier, nonstop, departing June 19, 2026.
$199 round-trip, Frontier F9316, departing 2026-06-19 at 11:52, returning 2026-06-24. The recorded itinerary left on a Friday, returning on a Wednesday 5 nights later; the fare was observed 55 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $199, it ranked 13th of the 30 round-trip fares we recorded from IAH (median $247). That is 24.5 cents per great-circle mile (round-trip price over one-way distance), above the IAH median of 17.9 cents across 30 round-trip routes.
Routes from IAH of similar length: Guadalajara (821 mi) at $357 and Orlando (850 mi) at $87.
Frontier had the cheapest fare on 12 of 30 IAH routes. It is the 25th longest of the 30 routes we track from IAH.
Of 25 departure airports with a fare to Cancun, Houston (IAH) ranked 3rd at $199. 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.