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Cheap flights from Seattle to Boise (SEA - BOI)

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

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

SEA - BOI
Price
$92 - $170
BOI
Temperature
41 - 93.2 °F
BOI
Rainfall
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

$167

Average for round-trip flights in December 2020

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 36% by booking at least 32 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 $434.

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

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, July can be a great choice for travel to Boise. Flights to Boise from Seattle in July are about $389 on average during July, but can be found for as low as $203.

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 13% on flights from Seattle to Boise by exploring options for tickets in the morning.

Cheap flights from Seattle to Boise in December, January 2021

The best prices found for SEA to BOI flights for December, January
31 Dec - 31 Dec
$91pp
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
30 Dec - 31 Dec
$97pp
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 Jan - 3 Jan
$112pp
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
31 Dec - 31 Dec
$91pp
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
30 Dec - 31 Dec
$97pp
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
23 Dec - 27 Dec
$112pp
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
31 Dec - 31 Dec
$91pp
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
30 Dec - 4 Jan
$97pp
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 Jan - 3 Jan
$112pp
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
11 Dec - 14 Dec
$167pp
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
11 Dec - 13 Dec
$176pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
BOI
Boise Air Term. Gowen Fld
BOI
Boise Air Term. Gowen Fld
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
11 Dec - 13 Dec
$180pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
BOI
Boise Air Term. Gowen Fld
BOI
Boise Air Term. Gowen Fld
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl

One-way flights to Boise from Seattle

The cheapest one-way flights from Seattle to Boise
4:00 am - 5:23 pm
United Airlines
2 Stops
12h 23m
SEA - BOI
United Airlines
$171
United
7:59 pm - 10:25 am
Multiple Airlines
3 Stops
37h 26m
SEA - BOI
Multiple Airlines
$188
Gotogate
1:05 am - 8:14 am
Alaska Airlines
1 Stop
6h 09m
SEA - BOI
Alaska Airlines
$191
Alaska Airlines

Related info for your journey

Useful info, stats and facts about Seattle to Boise flights.

Flight FAQs

From Seattle to Boise

Are flight prices decreasing from Seattle to Boise due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Seattle and Boise for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Seattle/Tacoma Intl to Boise Air Term. Gowen Fld to control the spread of COVID-19?

New policies can now be found on Alaska Airlines and Delta to help keep travelers safe while flying. New policies for travelers booking flights from Seattle/Tacoma Intl to Boise Air Term. Gowen Fld include masks being provided and required on board, daily cleaning and sanitization, use of HEPA filters, pre-flight testing for antibodies and symptoms, and socially distanced seating (for a limited time). Keep in mind that policies will vary by airline.

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 $91, but on average you can expect to pay $141.

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

Cheapflights has at least 13 direct flights from Seattle to Boise under $100. A good price for a nonstop flight from Seattle to Boise is less than $146.

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 many flights depart from Seattle to Boise on average per day?

1 flight departure from Seattle/Tacoma Intl to Boise Air Term. Gowen Fld per day on average.
Afternoon (Noon - 6pm) - 100% of flight departures

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 22 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.

How long is the flight from Seattle to Boise?

For as low as $147, Alaska Airlines can have you in Boise from Seattle in 1h 16m. Seattle and Boise are separated by a distance of 400 mi. All flights are typically nonstop.

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

Currently priced at $91, 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 $112. You may be able to fly from Seattle to Boise for 30% 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 Delta, which is currently one of the cheapest options available, starting at $49. Alaska Airlines flights start at $101 while deals on United Airlines start at $122 one-way.

Alternative routes for Seattle to Boise

Destination information for Boise

Things to know before you go. Useful info for your trip from Seattle to Boise
Flight duration
1h 35m
Average temperature for December in Boise
41.0 °F
Avg rainfall for December in Boise
1.4 ″

Airports servicing Seattle

Airports servicing Boise

Hourly flight availability from Seattle to Boise

Afternoon Noon to 6 PM 51% of SEA to BOI departures
Morning 6 AM to noon 42% of SEA to BOI departures
Evening 6 PM to midnight 6% of SEA to BOI departures
Early morning Midnight to 6 AM 1% of SEA to BOI departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Seattle to Boise
Sunday
22 daily flights
Monday
21 daily flights
Tuesday
21 daily flights
Wednesday
23 daily flights
Thursday
24 daily flights
Friday
19 daily flights
Saturday
21 daily flights
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