Phoenix (PHX) to Seoul (SEL): 6,263 miles (10,080 km) great-circle, about 13h 00m nonstop by our estimate. Cheapest fare observed: $1281 round-trip on WestJet, with 2 stops, departing June 18, 2026.
$1281 round-trip, WestJet WS1161, departing 2026-06-18 at 08:00, returning 2026-06-29. The recorded itinerary left on a Thursday, returning on a Monday 11 nights later; the fare was observed 54 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $1281, it ranked 29th of the 30 round-trip fares we recorded from PHX (median $231). That is 20.5 cents per great-circle mile (round-trip price over one-way distance), above the PHX median of 17.4 cents across 30 round-trip routes.
Routes from PHX of similar length: Istanbul (6,703 mi) at $1160 and London (5,258 mi) at $878.
WestJet had the cheapest fare on 3 of 30 PHX routes. It is the 4th longest of the 30 routes we track from PHX.
Of 24 departure airports with a fare to Seoul, Phoenix (PHX) ranked 23rd at $1281. Lowest: $142 from Osaka (KIX); highest: $1288 from Portland (PDX); 10 nonstop. Cheapest-fare airlines (routes): Jetstar (2), Peach Aviation (2), airline 9G (1), airline WE (1), Alaska Airlines (1) and Asiana (1), plus 16 more.
That depends on your passport and trip, so check the official source for South Korea: Republic of Korea: K-ETA. 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/Phoenix, Asia/Seoul; flight time is our estimate.