Philadelphia (PHL) to Cancun (CUN): 1,471 miles (2,367 km) great-circle, about 3h 25m nonstop by our estimate. Cheapest fare observed: $414 round-trip on Spirit, with 1 stop, departing July 1, 2026.
$414 round-trip, Spirit NK302, departing 2026-07-01 at 07:05, returning 2026-07-05. The recorded itinerary left on a Wednesday, returning on a Sunday 4 nights later; the fare was observed 67 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $414, it ranked 25th of the 30 round-trip fares we recorded from PHL (median $234). That is 28.1 cents per great-circle mile (round-trip price over one-way distance), above the PHL median of 21.3 cents across 30 round-trip routes.
Routes from PHL of similar length: Montego Bay (1,485 mi) at $371 and Santiago de los Caballeros (1,441 mi) at $318.
Spirit had the cheapest fare on 3 of 30 PHL routes. It is the 16th longest of the 30 routes we track from PHL.
Of 25 departure airports with a fare to Cancun, Philadelphia (PHL) ranked 16th at $414. 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/New_York, America/Cancun; flight time is our estimate.