Cancun (CUN) to Las Vegas (LAS): 1,995 miles (3,210 km) great-circle, about 4h 30m nonstop by our estimate. Cheapest fare observed: $313 round-trip on Frontier, with 1 stop, departing May 27, 2026.
$313 round-trip, Frontier F9317, departing 2026-05-27 at 13:14, returning 2026-06-03. The recorded itinerary left on a Wednesday, returning on a Wednesday 7 nights later; the fare was observed 32 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $313, it ranked 10th of the 30 round-trip fares we recorded from CUN (median $366). That is 15.7 cents per great-circle mile (round-trip price over one-way distance), below the CUN median of 20.7 cents across 30 round-trip routes.
Routes from CUN of similar length: Tijuana (2,010 mi) at $202 and Bridgetown (1,887 mi) at $1221.
Frontier had the cheapest fare on 2 of 30 CUN routes. It is the 14th longest of the 30 routes we track from CUN.
Of 32 departure airports with a fare to Las Vegas, Cancun (CUN) ranked 28th at $313. Lowest: $51 from San Francisco (SFO); highest: $465 from Los Cabos (SJD); 16 nonstop. Cheapest-fare airlines (routes): Frontier (24), Alaska Airlines (2), Air Canada (1), American Airlines (1), JetBlue (1) and Southwest (1), plus 2 more.
That depends on your passport and trip, so check the official source for United States: U.S. Customs and Border Protection: international visitors. 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/Cancun, America/Los_Angeles; flight time is our estimate.