Phoenix (PHX) to Bangkok (BKK): 8,532 miles (13,730 km) great-circle, about 17h 35m nonstop by our estimate. Cheapest fare observed: $1262 round-trip on WestJet, with 2 stops, departing May 14, 2026.
$1262 round-trip, WestJet WS1741, departing 2026-05-14 at 16:35, returning 2026-06-18. The recorded itinerary left on a Thursday, returning on a Thursday 35 nights later; the fare was observed 19 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $1262, it ranked 28th of the 30 round-trip fares we recorded from PHX (median $231). That is 14.8 cents per great-circle mile (round-trip price over one-way distance), below the PHX median of 17.4 cents across 30 round-trip routes.
Routes from PHX of similar length: Addis Ababa (8,935 mi) at $1448 and Istanbul (6,703 mi) at $1160.
WestJet had the cheapest fare on 3 of 30 PHX routes. It is the 2nd longest of the 30 routes we track from PHX.
Of 59 departure airports with a fare to Bangkok, Phoenix (PHX) ranked 54th at $1262. Lowest: $73 from Phuket (HKT); highest: $1428 from Mexico City (MEX); 14 nonstop. Cheapest-fare airlines (routes): Air India (5), Etihad (5), Thai Vietjet Air (4), Air China (3), Scoot (3) and Thai AirAsia (3), plus 31 more.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Phoenix, Asia/Bangkok; flight time is our estimate.