Cancun (CUN) to Miami (MIA): 531 miles (855 km) great-circle, about 1h 35m nonstop by our estimate. Cheapest fare observed: $335 round-trip on American Airlines, nonstop, departing May 6, 2026.
$335 round-trip, American Airlines AA2577, departing 2026-05-06 at 15:07, returning 2026-05-10. The recorded itinerary left on a Wednesday, returning on a Sunday 4 nights later; the fare was observed 11 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $335, it ranked 14th of the 30 round-trip fares we recorded from CUN (median $366). That is 63.1 cents per great-circle mile (round-trip price over one-way distance), above the CUN median of 20.7 cents across 30 round-trip routes.
Routes from CUN of similar length: Fort Lauderdale (549 mi) at $325 and Guatemala City (507 mi) at $225.
American Airlines had the cheapest fare on 4 of 30 CUN routes. It is the 28th longest of the 30 routes we track from CUN.
Of 30 departure airports with a fare to Miami, Cancun (CUN) ranked 24th at $335. Lowest: $72 from Atlanta (ATL); highest: $1627 from Wellington (WLG); 10 nonstop. Cheapest-fare airlines (routes): Frontier (13), Spirit (4), Southwest (3), American Airlines (2), Arajet (2) and Avianca (1), plus 5 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/New_York; flight time is our estimate.