King County International Airport - Boeing Field
Seattle, United StatesBFI / KBFI
Regional airport · 63 direct destinations · 2 runways · longest runway 10,007 ft
52 °F · Partly cloudySource: METAR observation via the NOAA Aviation Weather Center
Route
Twin Falls is currently 1 hour ahead of Seattle.
No nonstop connection observed
Our route data contains no observed nonstop flight from Seattle to Twin Falls. That does not rule out a one-stop journey; see the direct destinations of Seattle for the options.
Seattle, United StatesBFI / KBFI
Regional airport · 63 direct destinations · 2 runways · longest runway 10,007 ft
52 °F · Partly cloudySource: METAR observation via the NOAA Aviation Weather Center
Twin Falls, United StatesTWF / KTWF
Regional airport · 6 direct destinations · 2 runways · longest runway 8,704 ft
53 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center
The distance between King County International Airport - Boeing Field (BFI) and Joslin Field Magic Valley Regional Airport (TWF) is approximately 516 mi; no direct connection has been observed in our route data.
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The flight archive of the last twelve months has nothing for this route, so we say nothing about frequency.
Route data updated on October 11, 2026.