Cheap flights from Seattle to Boise (SEA - BOI)

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

The best prices from Seattle to Boise are usually found in April or October, booked 60 days in advance, depart on a Thursday or Friday and return on a Wednesday

How to find the cheapest flight from
Seattle (SEA) to Boise (BOI)

All the information you need to plan the best SEA to BOI flight in 2021: compare Seattle to Boise flight prices with the expected peak season, weather and rainfall in Boise.
SEA - BOI
Price
$92 - $170
BOI
Temperature
41 - 93.2 °F
BOI
Precipitation
0.2 - 1.5 inches

Popular in

June

High demand for flights, 23% potential price rise

Cheapest in

April

Best time to find cheap flights, 30% potential price drop

Average price

$146

Average for round-trip flights in August 2021

Round-trip from

$92

From Seattle to Boise

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Seattle to Boise?

Sunday flights are generally found to be more expensive for flights from Seattle to Boise. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Boise.

How far in advance should I book a flight from Seattle to Boise?

Find a great deal and save up to 58% by booking at least 24 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Seattle to Boise within the next two weeks, with the cheapest ticket starting at $140.

What is the cheapest month to fly from Seattle to Boise?

Due to multiple factors, expect to potentially pay more when booking in November. For low rates, August can be a great choice for travel to Boise. Flights to Boise from Seattle in August are about $146 on average during August, but can be found for as low as $80.

When is the cheapest time to fly from Seattle to Boise (SEA - BOI)?

Unlike at noon, when flights are generally more expensive, you can save up to 25% on flights from Seattle to Boise by exploring options for tickets in the morning.

Cheap flights from Seattle to Boise in August, September 2021

The best prices found for SEA to BOI flights for August, September
10 Sep - 10 Sep
$92pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
BOI
Boise Air Term. Gowen Fld
BOI
Boise Air Term. Gowen Fld
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
8 Sep - 10 Sep
$96pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
BOI
Boise Air Term. Gowen Fld
BOI
Boise Air Term. Gowen Fld
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
1 Sep - 3 Sep
$97pp
SEA
Seattle/Tacoma Intl
Delta
Non-Stop
BOI
Boise Air Term. Gowen Fld
BOI
Boise Air Term. Gowen Fld
Delta
Non-Stop
SEA
Seattle/Tacoma Intl

Seattle to Boise 2021 flight deals

Cheap flights to Boise from Seattle found for this year
10 Sep - 10 Sep
$92pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
BOI
Boise Air Term. Gowen Fld
BOI
Boise Air Term. Gowen Fld
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
8 Sep - 10 Sep
$96pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
BOI
Boise Air Term. Gowen Fld
BOI
Boise Air Term. Gowen Fld
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
1 Sep - 3 Sep
$97pp
SEA
Seattle/Tacoma Intl
Delta
Non-Stop
BOI
Boise Air Term. Gowen Fld
BOI
Boise Air Term. Gowen Fld
Delta
Non-Stop
SEA
Seattle/Tacoma Intl

Non-stop flights to Boise from Seattle

Save time with Seattle to Boise direct flight deals
10 Sep - 10 Sep
$92pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
BOI
Boise Air Term. Gowen Fld
BOI
Boise Air Term. Gowen Fld
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
8 Sep - 10 Sep
$96pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
BOI
Boise Air Term. Gowen Fld
BOI
Boise Air Term. Gowen Fld
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
1 Sep - 3 Sep
$97pp
SEA
Seattle/Tacoma Intl
Delta
Non-Stop
BOI
Boise Air Term. Gowen Fld
BOI
Boise Air Term. Gowen Fld
Delta
Non-Stop
SEA
Seattle/Tacoma Intl

Last minute flights from Seattle to Boise

Late deals on round-trip flights to Boise from Seattle, departing today and this week
13 Aug - 16 Aug
$157pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
BOI
Boise Air Term. Gowen Fld
BOI
Boise Air Term. Gowen Fld
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
15 Aug - 17 Aug
$174pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
BOI
Boise Air Term. Gowen Fld
BOI
Boise Air Term. Gowen Fld
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
13 Aug - 16 Aug
$177pp
SEA
Seattle/Tacoma Intl
Delta
Non-Stop
BOI
Boise Air Term. Gowen Fld
BOI
Boise Air Term. Gowen Fld
Delta
Non-Stop
SEA
Seattle/Tacoma Intl

One-way flights to Boise from Seattle

The cheapest one-way flights from Seattle to Boise
3:57 pm - 5:18 pm
Multiple Airlines
1 Stop
24h 21m
SEA - BOI
Multiple Airlines
$109
Gotogate
7:14 pm - 7:49 pm
Delta
2 Stops
23h 35m
SEA - BOI
Delta
$120
Delta
5:29 am - 6:08 pm
United Airlines
2 Stops
11h 39m
SEA - BOI
United Airlines
$126
United

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Seattle</span> to <span class="emphasized">Boise</span> flights.

Flight FAQs

From Seattle to Boise

What airports do I use to fly from Seattle to Boise?

To fly from Seattle to Boise, you need to book a flight from Seattle/Tacoma Intl (SEA) to Air Term. Gowen Fld (BOI). Nonstop flights to Boise Air Term. Gowen Fld from Seattle/Tacoma Intl take 1h 22m on average. When it comes time to book airfare, you have a few options: there are 30 outbound flights from Seattle/Tacoma Intl to Air Term. Gowen Fld offered by 3 different airlines.

Which airlines flying from Seattle/Tacoma Intl to Boise Air Term. Gowen Fld have flexible cancellations due to COVID-19?

Some of our airline partners flying from Seattle/Tacoma Intl to Boise Air Term. Gowen Fld have new flexible policies in place due to COVID-19. Alaska Airlines, Delta, and Major Airline are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like Alaska Airlines with this kind of flexibility.

Can I find flights from Seattle to Boise for under $100 on Cheapflights?

Yes, there are multiple flights from Seattle to Boise for under $100. The cheapest flight booked recently is on Alaska Airlines for just $92, but on average you can expect to pay $138.

Are there nonstop flights from Seattle to Boise for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from Seattle to Boise under $100. A good price for a nonstop flight from Seattle to Boise is less than $161.

Are there last-minute flights available from Seattle to Boise for under $200?

There are currently 20+ open flights from Seattle to Boise within the next 7 days for less than $200.

How popular is this flight route?

Flights from Seattle/Tacoma Intl to Boise Air Term. Gowen Fld have been viewed 64 times in the past calendar month.

Does it rain more in Seattle or Boise?

When traveling, we recommend packing in preparation to handle common weather conditions. The rainfall in Seattle is typically greater than that of Boise. We can gather that this will continue over the next 9 days.

Is Seattle weather warmer or cooler than Boise?

You can imagine temperatures to be in the 93 °F range in July. The weather in Boise is generally hotter than Seattle's. As flight availability is subject to become more limited as peak season approaches it is ideal to book in a timely manner.

What is the cheapest airline for this route?

The cheapest airline for this route is Horizon Airlines, Inc. on average. Horizon Airlines, Inc. operates 607 flight per week

How long is the flight from Seattle to Boise?

For as low as $92, Alaska Airlines can have you in Boise from Seattle in 1h 20m. All flights are typically nonstop.

What are the cheapest airlines flying from Seattle to Boise round-trip?

Currently priced at $92, Alaska Airlines will fly you from Seattle to Boise and back. In addition to Alaska Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Delta for as low as $97. You may be able to fly from Seattle to Boise for 29% less than the average price by searching for these airlines.

What are the cheapest airlines to fly from Seattle to Boise one-way?

To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at $26. Delta flights start at $49 while deals on United Airlines start at $126 one-way.

COVID Restrictions

View COVID Travel Restrictions for Boise, ID

Do I need a COVID test to fly to Boise from Seattle?

Information is based on travel restrictions for travel to Boise Air Term. Gowen Fld within the United States

Most visitors from Seattle/Tacoma Intl need to provide a negative COVID-19 test result and/or quarantine to enter Boise Air Term. Gowen Fld.

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Boise Air Term. Gowen Fld.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering Boise Air Term. Gowen Fld.

Do I need a test to fly back to Seattle from Boise?

Returning to Seattle/Tacoma Intl from Boise Air Term. Gowen Fld

COVID-19 testing requirements
Visitors from Boise Air Term. Gowen Fld must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Seattle/Tacoma Intl.

Quarantine requirements
Visitors from Boise Air Term. Gowen Fld are not required to quarantine after entering Seattle/Tacoma Intl.

Hide COVID Travel Restrictions for Boise, ID

Alternative routes for Seattle to Boise

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Boise

Things to know before you go - useful duration and weather info for your trip from Seattle to Boise.
Flight duration
1h 33m
Average temperature for August in Boise
91.4 °F
Avg rainfall for August in Boise
0.2 ″

Airports servicing Seattle

Airports servicing Boise

Hourly flight availability from Seattle to Boise

See what time of day planes typically take off from Seattle towards Boise.
Afternoon Noon to 6 PM 46% of SEA to BOI departures
Morning 6 AM to noon 33% of SEA to BOI departures
Evening 6 PM to midnight 19% of SEA to BOI departures
Early morning Midnight to 6 AM 2% of SEA to BOI departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Seattle to Boise
See how many times per day planes take to the skies headed from Seattle to Boise.
Sunday
31 daily flights
Monday
33 daily flights
Tuesday
30 daily flights
Wednesday
29 daily flights
Thursday
29 daily flights
Friday
31 daily flights
Saturday
31 daily flights
Home North America USA Idaho Boise Cheap flights from Seattle to Boise