Cheap Flights from Seattle to Boise

Cheapest flights from Seattle to Boise

Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Seattle to Boise. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.

Cheapest one way flight

$186

Frontier Airlines

1 layover

15h 49m

06/28/2026

The cheapest one-way flight from Seattle to Boise departs on 06/28/2026, is operated by Frontier Airlines and costs $186

Cheapest round trip flight

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There is no information about the cheapest roundtrip flight from Seattle to Boise

The fastest flight

15h 49m

Fastest flight from Seattle to Boise takes 15h 49m

Direct flights

Once a week

There are direct flights on this route 1 day a week: Su

Distance

653km

Timezone difference

1h

The distance between Seattle and Boise is 653km (405 miles). The time difference between Seattle and Boise is 1h

Remember that on average the ideal time to book flights is 2 months before departure!

Airfare from Seattle to Boise by month

We carefully collect statistics on the search and pricing of airlines and, based on these data, we make an assumption about future prices. Thus, you can better understand which season is the cheapest to fly from Seattle to Boise

June 2026

Lowest price

on average:

$162

Avg Price

Airlines operating on route

The route Seattle — Boise is served by several airlines: Alaska Airlines and Frontier Airlines. This gives passengers more freedom in choosing flights. You can consider not only the price but also schedules, baggage policies, and onboard service. Our service compares all offers so you can find tickets from $186 and choose the most convenient option. Thanks to airline competition, you may also find promotional fares or special offers, helping you save even more. Plan your trip in advance and choose the best flights without overpaying.

Alaska Airlines

starting at $354

Frontier Airlines

starting at $186

Non-stop flights from Seattle to Boise

A non-stop flight is the most convenient and comfortable way to fly from Seattle to Boise, despite the fact that sometimes flights with transfers can cost significantly less.

Seattle — Boise

SEA — BOI

06/28/2026

Departure

Direct flight

AS2109

starting at $354

Schedule of direct flights from Seattle to Boise

There are most likely no direct flights on the Seattle — Boise route

Seattle airports overview

Boeing Field International Airport

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BFI

8km

Seattle-Tacoma International Airport

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SEA

19km

Primary air hub for the Seattle metropolitan area and Puget Sound, offering extensive domestic and international routes, multiple terminals, light rail and shuttle connections, and convenient access to downtown Seattle.

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Boise airports overview

Boise Air Terminal (Gowen Field)

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BOI

Serving Boise, Idaho, the airport provides mainly domestic flights with seasonal connections; convenient for travel to the Treasure Valley and central Idaho and shares facilities with a military airfield.

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Frequently asked questions (FAQ)

Answers to questions about the route that travelers are most interested in.

What is the cheapest price for flights from Seattle to Boise?

The cheapest flight ticket from Seattle to Boise according to data for the last 48 hours costs $186

When is the best time to buy air tickets on the route Seattle — Boise?

Often the best time to buy tickets from Seattle to Boise is 2 months before departure.

When is the cheapest time of year to fly from Seattle to Boise?

Based on statistics over the past years, the lowest prices for flights from Seattle to Boise can be found flying in these months: June.

How long does it take to fly from Seattle to Boise?

The fastest flights from Seattle to Boise start from 15 hours 49 minutes in the air.

Which airline can fly direct from Seattle to Boise?

The following airlines operate direct flights on the route Seattle — Boise: Alaska Airlines

Special offers and sales on air tickets from Seattle to Boise

We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.

We couldn't find any special offers for flights from Seattle to Boise

Alternative routes

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Cheapest one way flight

$186

Frontier Airlines

1 layover

15h 49m

06/28/2026

The cheapest one-way flight from Seattle to Boise departs on 06/28/2026, is operated by Frontier Airlines and costs $186

Cheapest round trip flight

—

There is no information about the cheapest roundtrip flight from Seattle to Boise

The fastest flight