The flight time from Seattle to Boise is 1 hour, 22 minutes. See Data as Tables

Average Timeline

Leaves SEA Seattle, WA 3 minutes early.
15 minutes taxiing out
1 hour, 2 minutes in the air
4 minutes taxiing in
Arrives BOI Boise, ID 7 minutes early.

Flight Reliability By Airline ?


Flight Summary

The flight time from Seattle to Boise is 1 hour, 22 minutes. The time spent in the air is 1 hour, 2 minutes.

The flight distance from Seattle to Boise is 399 Miles.

Reverse Journey

Boise to Seattle
1 hour, 36 minutes

Flight Time By Airline ?

1h 19m
1h 24m
Taxiing Out
Air Time
Taxiing In

Flight Time by Time of Day ?

12AM06AM12PM06PM 30m1h1h 30m
Taxiing Out
Air Time
Taxiing In

Flights By Time of Day ?


Flights Per Week



399 Miles

Flights By Month ?


Flights By Day of Week ?


Flights By Airline ?
(Per Week)


Frequently Asked Questions

How far is Seattle from Boise by plane?

The distance from Seattle to Boise by plane is 399 Miles. This is the air distance on the most direct route taken by the vast majority of flights.

How long is the flight from Seattle to Boise?

The flight time from Seattle to Boise is 1 hour, 22 minutes. The time spent in the air is 1 hour, 2 minutes. These numbers are averages. In reality, it varies by airline with Delta being the fastest taking 1 hour, 19 minutes, and Alaska the slowest taking 1 hour, 24 minutes.

What airlines fly from Seattle to Boise?

Alaska and Delta are the airlines with direct flights from Seattle to Boise.

Does Southwest fly from Seattle to Boise?

Southwest does not fly from Seattle (SEA) to Boise (BOI). Keep in mind that Southwest may fly to other nearby airports, as they will often fly into smaller airpors instead of larger ones. This is because the costs are often lower to fly into smaller airports, and they pass the savings on to you.

Tables and Explanations

Data Source

Our information is computed from the latest available data from the US Department of Transportation.

Average Timeline Timeline Chart

The average timeline contains the median time a flight spends in 3 stages. The first of these three stages is taxiing out which includes the time from the flight leaving the gate to taking off. The second stage is in the air, which includes the time spent from the flight leaving the ground to touching back down at the end of it's journey. The last stage is taxiing in, which is from when the flight touches down to the flight arriving at it's gate.

The average timeline also estimates on average of when the flight will leave and arrive relative to it's stated departure time.

Leaves Seattle 3 minutes early
Taxi Out Time 15 minutes
In the Air 62 minutes
Taxiing In 4 minutes
Arrives Boise 7 minutes early

Flight Reliability Reliability Chart

The reliability of an airline measures how often the airline's flights on this route are cancelled or delayed more than 20 minutes. For example, from Seattle to Boise, Alaska is 88% reliable, which means that Alaska flights are on time 88% of the time, and cancelled or delayed the remaining time.

Airline Normal Flights Arrival Delayed* Flight Cancelled
Delta 92% 6% 2%
Alaska 88% 11% 1%

Flight Time By Airline Flight Time By Airline Chart

Each airline takes a different amount of time to fly between Seattle and Boise, this is due to different operational factors on the ground, as well as scheduling of planes. Each airline's flight time is split into three stages which are described above in the "Average Timeline" section. There are also miscellaneous operational issues which are included in the below total but are not accounted for in one of the three stages.

Airline Taxiing Out
In the Air
Taxiing In
Delta 15 59 3 79
Alaska 14 65 4 84

Flights By Time of Day Flight Time By Day Chart

This one is pretty self explanatory, it represents the number of flights that leave the gate in a given hour of the day. The tricky thing here is that this is normally not a whole number since it is an average over 52 weeks. Partial numbers may indicate that a flight may be seasonal or may take off at different times due to different operational factors.

Time Count
3pm 0.99
4pm 0.64
6pm 0.68
9pm 1.62
7pm 1.99
10am 1.39
6am 0.28
5pm 0.99
8pm 0.43
2pm 0.5
1pm 1.08
11am 0.64
7am 0.79
10pm 0.21
8am 1.28
12pm 0.56
9am 0.49

Flights By Month Flights By Month Chart

The quantity of flights from Seattle to Boise that take off in a given month of the year. This number changes because some flights are seasonal, and almost all flights have uneven demand througout the year.

Month Count
January 405
February 381
March 447
April 443
May 475
June 504
July 525
August 495
September 493
October 451
November 391
December 387

Flights By Day Of Week Flights By Day of Week Chart

The quantity of flights from Seattle to Boise that take off on a given day of the week. Some routes only have enough demand to sustain a few trips a week, while others have many flights a day. This number is also an average across the year, and hence may not be a whole number.

Day Count
Monday 15.42
Tuesday 14.67
Wednesday 14.54
Thursday 15.04
Friday 15.13
Saturday 14.15
Sunday 14.83

Flight per Airline (per Week) Flights By Airline Chart

How many times an airline flies this route in a week. Different factors play into how often a carrier chooses to fly a given route including it's need to connect disparate routes, and demand.

Airline Flights per Week
Alaska 1
Delta 1

Flight Time By Time of Day Flight Time by Time of Day Chart

The total flight time varies by each hour of the day due to factors such as airport traffic. More flights leaving an airport may cause higher taxi in or taxi out times. See the description of the average timeline above for a deeper discussion of each of these times.

Time Taxi Out
In the Air
Taxi In
3pm 16 62 4 83
4pm 12 65 4 82
6pm 14 67 4 85
9pm 16 57 4 79
7pm 14 62 4 82
10am 19 60 4 85
6am 11 61 4 76
5pm 12 64 4 82
8pm 14 58 4 78
2pm 13 67 3 83
1pm 14 62 4 83
11am 19 67 4 90
7am 12 68 4 84
10pm 12 57 3 73
8am 16 60 4 82
12pm 16 63 4 84
9am 14 62 4 81
* Delayed more than 20 minutes.
All data above is a median or mean as appropriate.