Portland (PDX) to Cancun (CUN): 2,634 miles (4,239 km) great-circle, about 5h 45m nonstop by our estimate. Cheapest fare observed: $500 round-trip on Air Canada, with 1 stop, departing June 10, 2026.
$500 round-trip, Air Canada AC8653, departing 2026-06-10 at 15:30, returning 2026-06-17. The recorded itinerary left on a Wednesday, returning on a Wednesday 7 nights later; the fare was observed 46 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $500, it ranked 19th of the 30 round-trip fares we recorded from PDX (median $378). That is 19.0 cents per great-circle mile (round-trip price over one-way distance), below the PDX median of 21.2 cents across 30 round-trip routes.
Routes from PDX of similar length: Honolulu (2,603 mi) at $436 and Maui (2,562 mi) at $471.
PDX to CUN is the only one of 30 PDX routes where Air Canada priced cheapest. It is the 8th longest of the 30 routes we track from PDX.
Of 25 departure airports with a fare to Cancun, Portland (PDX) ranked 19th at $500. 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/Los_Angeles, America/Cancun; flight time is our estimate.