Portland (PDX) to Charlotte (CLT): 2,277 miles (3,665 km) great-circle, about 5h 05m nonstop by our estimate. Cheapest fare observed: $518 round-trip on Southwest, with 1 stop, departing May 6, 2026.
$518 round-trip, Southwest WN3709, departing 2026-05-06 at 06:30, returning 2026-05-07. The recorded itinerary left on a Wednesday, returning on a Thursday 1 night later; the fare was observed 11 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $518, it ranked 21st of the 30 round-trip fares we recorded from PDX (median $378). That is 22.7 cents per great-circle mile (round-trip price over one-way distance), close to the PDX median of 21.2 cents across 30 round-trip routes.
Routes from PDX of similar length: Washington (2,322 mi) at $503 and Montreal (2,327 mi) at $655.
Southwest had the cheapest fare on 2 of 30 PDX routes. It is the 17th longest of the 30 routes we track from PDX.
Of 10 departure airports with a fare to Charlotte, Portland (PDX) ranked 7th at $518. Lowest: $76 from Fort Lauderdale (FLL); highest: $957 from Krakow (KRK); 1 nonstop. Cheapest-fare airlines (routes): Frontier (6), Avianca (1), Lufthansa (1), Southwest (1) and Viva Aerobus (1).
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Los_Angeles, America/New_York; flight time is our estimate.