Cheap Flights from Seattle / Tacoma International to Boise

Compare Seattle / Tacoma International to Boise flight deals

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Flight deals from Seattle / Tacoma International to Boise

Looking for a cheap last-minute deal or the best return flight from Seattle / Tacoma International to Boise? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Seattle / Tacoma International to Boise

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle / Tacoma International to Boise flights are currently cheapest in September.

Direct flights from Seattle / Tacoma International to Boise

Seattle / Tacoma International to Boise: Alternative routes

Compare routes from Seattle / Tacoma International to Boise below. You may find an airport to fly into that's cheaper, faster, or easier than Boise.

Seattle to Boise: Flight information

The things to know before you go.
Cheapest flight foundر.ق.‏ 207
Cheapest month to flySeptember
Average flight time1 hr, 30 mins
Most popular airlineAlaska Airlines
Average flights per week547

Finding cheap flights from Seattle / Tacoma International to Boise: Frequently asked questions

The best price we found for a return flight from Seattle / Tacoma International to Boise is ر.ق.‏ 388. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 30 minutes is the average flight time from Seattle / Tacoma International to Boise.
Alaska Airlines, Air Tahiti Nui and Hawaiian Airlines fly direct from Seattle / Tacoma International to Boise.
As of August 2025, there are 547 flights per week flying from Seattle / Tacoma International to Boise.
The cheapest month to fly from Seattle / Tacoma International to Boise is usually October.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Seattle / Tacoma International Airport to Boise Airport on Saturday, 11 October 2025.
Yes – the average flight time is 1 hour and 30 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Boise but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Boise is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Hawaiian Airlines offers the cheapest flight tickets to Boise.

Travelling from Seattle-Tacoma International Airport (SEA) to Boise Air Terminal (Gowen Field) Airport (BOI): what you need to know

  • The average length of a direct flight from Seattle-Tacoma International Airport to Boise Air Terminal (Gowen Field) Airport is 1 hour 25 minutes.

  • You can choose from 129 weekly Seattle-Tacoma International Airport to Boise Air Terminal (Gowen Field) Airport flights. The 07:00 departure with Alaska Airlines is the earliest flight you can take. Alaska Airlines operates the last service of the day at 21:38.

  • Your SEA to BOI flight won't wait if you're running late, so be at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.

  • During popular months like July, it's best to get to the airport earlier. Plan to arrive two hours before domestic departures and four hours ahead of an international flight whenever you're travelling during peak periods in general.

  • Alaska Airlines offers direct flights from Seattle-Tacoma International Airport to Boise Air Terminal (Gowen Field) Airport. Book with this popular airline, then get ready to check out the sights in Boise — and maybe even more of United States if you have time.

  • Alaska Airlines has the highest passenger demand on this route.

  • With a dependable 86.56% of services arriving on schedule, Delta Air Lines has the best on-time record for SEA to BOI flights.

  • We make it simple to book a flight with a stopover. To see your options for tickets from Seattle-Tacoma International Airport to Boise Air Terminal (Gowen Field) Airport, deselect 'Direct flights only.' Then, pick a flight offering a stop long enough to explore the city of your choice. Top stopovers between SEA and BOI include:

    • Sacramento International Airport

    • Norman Y. Mineta San Jose International Airport

    • Salt Lake City International Airport

How to find the cheapest flights from Seattle-Tacoma International Airport (SEA) to Boise Air Terminal (Gowen Field) Airport (BOI)

  • ر.ق.‏ 207 is currently the lowest price for a one-way Seattle-Tacoma International Airport to Boise Air Terminal (Gowen Field) Airport flight. Return flights start at ر.ق.‏ 388. These fares can change based on demand and availability.

  • Get cheap tickets from SEA to BOI by booking six months ahead. Based on our research, that's the sweet spot for finding the biggest deals.

  • The cheapest month for flights from Seattle-Tacoma International Airport to Boise Air Terminal (Gowen Field) Airport is May. Use the 'Whole month' tool to find the lowest prices if you have flexible dates.

  • Finding cheap flights from SEA to BOI is a breeze with Price Alerts. All you need to do is create one of these automatic alerts and we'll notify you when a new deal comes up.

  • Choose your ideal departure and arrival times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to get the best deals on flights from Seattle-Tacoma International Airport to Boise Air Terminal (Gowen Field) Airport.

Handy information about Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport earns top marks for on-time performance. 81.27% of flights that depart SEA reach their destination without delay.

  • Seattle-Tacoma International Airport is about 23 kilometres from central Seattle. If you're ride-sharing, catching a cab or driving from the centre, it'll take you 20 minutes or so to arrive, depending on the traffic.

  • The journey on public transport typically takes 55 minutes.

  • Booked an early flight from Seattle-Tacoma International Airport to Boise Air Terminal (Gowen Field) Airport? Avoid rushing to the terminal (and sneak in some extra snooze time) by picking one of these stays close to SEA:

Arriving at Boise Air Terminal (Gowen Field) Airport (BOI)

Getting from Boise Air Terminal (Gowen Field) Airport (BOI) to central Boise

  • BOI is located at 3201 Airport Way.

  • From Boise Air Terminal (Gowen Field) Airport, Boise is approximately 18 kilometres away. It takes around 20 minutes to drive to the centre.

  • It'll take around 1 hour 35 minutes if you're travelling by public transport.

When to fly to Boise Air Terminal (Gowen Field) Airport (BOI)

  • The quietest month for a flight from Seattle-Tacoma International Airport to Boise Air Terminal (Gowen Field) Airport is May, while July is the busiest. Pick the best time to visit Boise based on whether you prefer a more fast-paced or easygoing experience.

  • The warmest month in Boise is July, with temperatures ranging between 15ºC and 35ºC. Lock in your flights from Seattle-Tacoma International Airport to Boise Air Terminal (Gowen Field) Airport in this month if this is the type of weather you enjoy.

  • January sees average temperatures of between -11ºC and 5ºC. Search for cheap tickets from SEA to BOI sometime then if you like travelling in cooler conditions.

Explore more of United States

  • Boise has loads to offer, but there are so many other corners of United States just waiting to be discovered. Around 467 kilometres north of Boise, a trip to Spokane will keep your itinerary busy. Check out popular attractions like Manito Park, Northwest Museum of Arts & Culture and Spokane Falls.

  • If you're ready to explore another well-known destination in United States, consider Salt Lake City, roughly 483 kilometres south-east of Boise. Temple Square, Utah State Capitol and Red Butte Garden are among its highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.