Seattle–Tacoma International Airport
Seattle, United StatesSEA / KSEA
International hub · 132 direct destinations · 3 runways · longest runway 11,900 ft
48 °F · Partly cloudySource: METAR observation via the NOAA Aviation Weather Center
Route
Seattle → Boise
SEA
SeattleSeattle–Tacoma International Airport
SeattleSeattle–Tacoma International AirportBOIBoiseBoise Air Terminal/Gowen Field
BoiseBoise Air Terminal/Gowen Field- Distance
- 398 mi
- Estimated flight time
- ~1h 20m
Boise is currently 1 hour ahead of Seattle.
Observed nonstop
How often does this route fly?
Frequency
Throughout the day
On average around 13 flights a day, observed from October 2025 to September 2026.
- 13
- flights per day
- 14
- busiest month · Mar
- 11
- quietest month · Oct
- 59 min
- measured flight time
- 12 / 12
- months seen
Through the year
Per day, month by month
- 13Jan2026
- 12Feb
- 14Mar
- 14Apr
- 14May
- 14Jun
- 13Jul
- 13Aug
- 13Sep
- 11Oct2025
- 13Nov
- 13Dec
Airlines
Who flies it
SkyWest Airlinesall year
Horizon Airall year
Alaska Airlinesall year
Through the day
Departure times
Local time in Seattle. Most departures between 19:00 and 22:00.
- 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
- 13.5Mon
- 13.1Tue
- 12.6Wed
- 11.9Thu
- 13.4Fri
- 13.3Sat
- 11.6Sun
Fleet
Aircraft observed
- Embraer 175E75L78%
- Boeing 737-800B7389%
- Boeing 737-900B7396%
- Boeing 737 MAX 9B39M5%
- Boeing 737 MAX 8B38M2%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 13 | 381 |
|
| February 2026 | 12 | 345 |
|
| March 2026 | 14 | 407 |
|
| April 2026 | 14 | 399 |
|
| May 2026 | 14 | 407 |
|
| June 2026 | 14 | 403 |
|
| July 2026 | 13 | 415 |
|
| August 2026 | 13 | 399 |
|
| September 2026 | 13 | 397 |
|
| October 2025 | 11 | 322 |
|
| November 2025 | 13 | 364 |
|
| December 2025 | 13 | 373 |
|
Airlines observed on this route
From observed callsign routes on SEA-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: 132.
- 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
47 °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 Seattle–Tacoma International Airport (SEA) and Boise Air Terminal/Gowen Field (BOI) covers approximately 398 mi. The estimated flight time is around 1h 20m. Alaska Airlines, Horizon Air and SkyWest Airlines 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 Seattle–Tacoma International Airport and Boise Air Terminal/Gowen Field is approximately 398 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 SEA and BOI has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: Alaska Airlines, Horizon Air and SkyWest Airlines.
- How often is there a flight from Seattle to Boise?
- On average around 13 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 4,612 observed flights. Mainly SkyWest Airlines, Horizon Air, Alaska Airlines. 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.