The flight time from Seattle to Boise is 1 hour, 20 minutes. See Data as Tables

Average Timeline

Leaves SEA Seattle, WA 4 minutes early.
13 minutes taxiing out
1 hour, 3 minutes in the air
4 minutes taxiing in
Arrives BOI Boise, ID 9 minutes early.

Flight Reliability By Airline ?


Flight Summary

The flight time from Seattle to Boise is 1 hour, 20 minutes. The time spent in the air is 1 hour, 3 minutes.

The flight distance from Seattle to Boise is 399 Miles.

Reverse Journey

Boise to Seattle
1 hour, 34 minutes

Flight Time By Airline ?

1h 16m
1h 22m
Taxiing Out
Air Time
Taxiing In

Flight Time by Time of Day ?

12AM06AM12PM06PM 15m 30m 45m1h1h 15m
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, 20 minutes. The time spent in the air is 1 hour, 3 minutes. These numbers are averages. In reality, it varies by airline with Delta being the fastest taking 1 hour, 16 minutes, and Alaska the slowest taking 1 hour, 22 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 4 minutes early
Taxi Out Time 13 minutes
In the Air 63 minutes
Taxiing In 4 minutes
Arrives Boise 9 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 94% reliable, which means that Alaska flights are on time 94% of the time, and cancelled or delayed the remaining time.

Airline Normal Flights Arrival Delayed* Flight Cancelled
Delta 96% 4% 0%
Alaska 94% 5% 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 13 58 3 76
Alaska 12 66 4 82

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 1.72
4pm 0.38
6pm 0.67
9pm 1.43
7pm 1.32
10am 0.42
6am 0.13
5pm 0.87
8pm 0.39
2pm 0.82
1pm 0.78
11am 0.93
7am 0.83
10pm 0.2
8am 0.46
12pm 0.64
9am 1.43

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 391
February 381
March 447
April 443
May 475
June 253
July 373
August 426
September 409
October 455
November 432
December 437

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 13.79
Tuesday 12.94
Wednesday 12.96
Thursday 13.36
Friday 13.43
Saturday 12.89
Sunday 13.49

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 13 64 4 81
4pm 11 67 3 81
6pm 12 61 3 77
9pm 14 57 4 76
7pm 13 60 3 78
10am 14 61 4 79
6am 10 67 4 81
5pm 11 68 3 83
8pm 12 59 3 76
2pm 11 67 4 82
1pm 11 67 3 82
11am 18 60 3 84
7am 13 66 4 83
10pm 13 57 3 73
8am 13 67 4 85
12pm 15 61 3 82
9am 13 61 4 79
* Delayed more than 20 minutes.
All data above is a median or mean as appropriate.