King County International Airport - Boeing Field
Seattle, United StatesBFI / KBFI
Regional airport · 63 direct destinations · 2 runways · longest runway 10,007 ft
48 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Route
Seattle → Boise
BFI
SeattleKing County International Airport - Boeing Field
SeattleKing County International Airport - Boeing FieldBOIBoiseBoise Air Terminal/Gowen Field
BoiseBoise Air Terminal/Gowen Field- Distance
- 401 mi
- Estimated flight time
- ~1h 20m
Boise is currently 1 hour ahead of Seattle.
Observed nonstop
How often does this route fly?
Frequency
Daily at most
On average around 1 flights a day, observed from October 2025 to September 2026.
- 1
- flights per day
- 2
- busiest month · Sep
- 1
- quietest month · Oct
- 1 hr 10 min
- measured flight time
- 12 / 12
- months seen
Through the year
Per day, month by month
- 1Jan2026
- 1Feb
- 1Mar
- 1Apr
- 1May
- 1Jun
- 1Jul
- 1Aug
- 2Sep
- 1Oct2025
- 1Nov
- 1.5Dec
In December 2025 we saw less traffic at Seattle in general than usual; compare that month with care.
Airlines
Who flies it
Ameriflightnow and then
Western Aircraftsummer
Through the day
Departure times
Local time in Seattle. Most departures between 11:00 and 14:00.
- 00:00
- 01:00
- 02:00
- 03:00
- 04:00
- 05:00
- 06:00
- 07:00
- 08:00
- 09:00
- 10:00
- 11:00
- 12:00
- 13:00
- 14:00
- 15:00
- 16:00
- 17:00
- 18:00
- 19:00
- 20:00
- 21:00
- 22:00
- 23:00
Through the week
By weekday
- 0.8Mon
- 0.7Tue
- 0.9Wed
- 1.1Thu
- 0.8Fri
- 0.6Sat
- 0.7Sun
Fleet
Aircraft observed
- Pilatus PC-12PC1218%
- Beechcraft King Air 200BE2011%
- Cessna Citation CJ3C25B4%
- Embraer Phenom 300E55P3%
- Cessna Citation CJ2C25A3%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 1 | 25 |
|
| February 2026 | 1 | 18 | – |
| March 2026 | 1 | 24 | – |
| April 2026 | 1 | 26 | – |
| May 2026 | 1 | 26 |
|
| June 2026 | 1 | 28 |
|
| July 2026 | 1 | 27 |
|
| August 2026 | 1 | 25 |
|
| September 2026 | 2 | 36 | – |
| October 2025 | 1 | 17 |
|
| November 2025 | 1 | 19 |
|
| December 2025 | 1.5 | 27 | – |
Airlines observed on this route
From observed callsign routes on BFI-BOI - not a booking guarantee.
About this route
- Domestic route: both airports are in the same country.
- The opposite direction has also been observed as a direct connection.
- Direct destinations observed from Seattle: 63.
- Direct destinations observed from Boise: 57.
The airports on this route
Boise Air Terminal/Gowen Field
Boise, United StatesBOI / KBOI
Regional airport · 57 direct destinations · 2 runways · longest runway 10,000 ft
54 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center
Alternative airports for this journey
Same journey, a different airport nearby - with an observed direct connection.
About the route from Seattle to Boise
The observed direct connection between King County International Airport - Boeing Field (BFI) and Boise Air Terminal/Gowen Field (BOI) covers approximately 401 mi. The estimated flight time is around 1h 20m. Ameriflight and Western Aircraft have been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Seattle from Boise by air?
- The great-circle distance between King County International Airport - Boeing Field and Boise Air Terminal/Gowen Field is approximately 401 mi.
- How long is the flight from Seattle to Boise?
- Based on the distance, the estimated flight time is about 1h 20m. This is an estimate, not a schedule.
- Is there a direct connection from Seattle to Boise?
- Yes, a direct connection between BFI and BOI has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: Ameriflight and Western Aircraft.
- How often is there a flight from Seattle to Boise?
- On average around 1 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 298 observed flights. Mainly Ameriflight, Western Aircraft. That is an observation, not a timetable.
- What is the current time difference between Seattle and Boise?
- Boise is currently 1 hour ahead of Seattle.
Where this data comes from
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 frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.
Route data updated on October 11, 2026.