C$187 Cheap Flights from Seattle (SEAA) to Boise (BOI)

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Flight deals from Seattle to Boise

Looking for a cheap last-minute deal or the best return flight from Seattle to Boise Airport? If you want to travel next month, return fares start from C$187. Find the lowest prices on one-way and return tickets right here.

Boise.C$108 per passenger.Departing Mon., Jun. 29.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Seattle / Tacoma International on Mon., Jun. 29, arriving in Boise.Price includes taxes and charges.From C$108, select.

Boise.C$135 per passenger.Departing Sun., Jun. 28.One-way flight with Delta.Outbound direct flight with Delta departs from Seattle / Tacoma International on Sun., Jun. 28, arriving in Boise.Price includes taxes and charges.From C$135, select.

Boise.C$138 per passenger.Departing Wed., Aug. 19.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Seattle / Tacoma International on Wed., Aug. 19, arriving in Boise.Price includes taxes and charges.From C$138, select.

Boise.C$148 per passenger.Departing Wed., Jul. 1.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Seattle / Tacoma International on Wed., Jul. 1, arriving in Boise.Price includes taxes and charges.From C$148, select.

Boise.C$151 per passenger.Departing Wed., May 27.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Seattle / Tacoma International on Wed., May 27, arriving in Boise.Price includes taxes and charges.From C$151, select.

Boise.C$155 per passenger.Departing Tue., Sep. 22.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Seattle / Tacoma International on Tue., Sep. 22, arriving in Boise.Price includes taxes and charges.From C$155, select.

Boise.C$156 per passenger.Departing Wed., Oct. 14.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Seattle / Tacoma International on Wed., Oct. 14, arriving in Boise.Price includes taxes and charges.From C$156, select.

Boise.C$175 per passenger.Departing Wed., May 13.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Seattle / Tacoma International on Wed., May 13, arriving in Boise.Price includes taxes and charges.From C$175, select.

Boise.C$210 per passenger.Departing Wed., Dec. 16.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Seattle / Tacoma International on Wed., Dec. 16, arriving in Boise.Price includes taxes and charges.From C$210, select.

Boise.C$217 per passenger.Departing Fri., Nov. 20.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Seattle / Tacoma International on Fri., Nov. 20, arriving in Boise.Price includes taxes and charges.From C$217, select.

Boise.C$237 per passenger.Departing Mon., Sep. 7.One-way flight with Delta.Outbound direct flight with Delta departs from Seattle / Tacoma International on Mon., Sep. 7, arriving in Boise.Price includes taxes and charges.From C$237, select.

Boise.C$237 per passenger.Departing Thu., Aug. 20.One-way flight with Delta.Outbound direct flight with Delta departs from Seattle / Tacoma International on Thu., Aug. 20, arriving in Boise.Price includes taxes and charges.From C$237, select.

Boise.C$237 per passenger.Departing Fri., Jul. 10.One-way flight with Delta.Outbound direct flight with Delta departs from Seattle / Tacoma International on Fri., Jul. 10, arriving in Boise.Price includes taxes and charges.From C$237, select.

Boise.C$237 per passenger.Departing Fri., Nov. 20.One-way flight with Delta.Outbound direct flight with Delta departs from Seattle / Tacoma International on Fri., Nov. 20, arriving in Boise.Price includes taxes and charges.From C$237, select.

Boise.C$237 per passenger.Departing Thu., Oct. 15.One-way flight with Delta.Outbound direct flight with Delta departs from Seattle / Tacoma International on Thu., Oct. 15, arriving in Boise.Price includes taxes and charges.From C$237, select.

Boise.C$238 per passenger.Departing Wed., Dec. 16.One-way flight with Delta.Outbound direct flight with Delta departs from Seattle / Tacoma International on Wed., Dec. 16, arriving in Boise.Price includes taxes and charges.From C$238, select.

Find the cheapest month to fly from Seattle to Boise

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

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Which airlines fly from Seattle to Boise?

Seattle to Boise: Alternative routes

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

Boise

5km from central Boise

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from C$108

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Seattle to Boise: Flight information

The things to know before you go.

Cheapest flight found	C$108
Cheapest month to fly	June
Average flight time	1 hr, 34 mins
Most popular airline	Alaska Airlines
Average flights per week	487

Finding cheap flights from Seattle to Boise: Frequently asked questions

How much are return flights from Seattle to Boise?

The best price we found for a return flight from Seattle to Boise is C$187. 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.

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

1 hour and 34 minutes is the average flight time from Seattle to Boise.

Which airlines fly direct from Seattle to Boise?

Alaska Airlines, Qatar Airways and Horizon Air fly direct from Seattle to Boise.

How many flights are there a week from Seattle to Boise?

As of May 2026, there are 487 flights per week flying from Seattle to Boise.

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

The cheapest month to fly from Seattle to Boise is usually June.

Which upcoming date is cheapest to fly from Seattle to Boise Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Boise Airport on Saturday, June 20, 2026.

Can I get a direct flight from Seattle to Boise Airport?

Yes – the average flight time is 1 hour and 34 minutes.

How can I find the best flight deal to Boise?

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.

When is the best time to book flights to Boise?

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.

Which is the cheapest airline to fly from Seattle to Boise with?

The cheapest airline that flies to Boise is Delta .

Flying from Seattle to Boise Air Terminal (Gowen Field) (BOI): what you need to know

All good adventures kick off from Seattle's main airport, Seattle-Tacoma International Airport (SEA). Check out the options for reserving a flight from Seattle to Boise Air Terminal (Gowen Field) (BOI) leaving from this base.
Book a direct flight from Seattle to Boise Air Terminal (Gowen Field) and you'll be travelling for around 1 hour 27 minutes.
The timezone in Boise is UTC-6, which is 1 hour ahead of Seattle. Boise Air Terminal (Gowen Field) is located in Boise.
With 129 direct flights a week between the two airports, Seattle-Tacoma International Airport (SEA) to Boise Air Terminal (Gowen Field) (BOI) is the most popular route. Alaska Airlines operates the earliest flight at 07:00. If you prefer to make the most of your day before jetting off, the latest departure from SEA to BOI is with Alaska Airlines at 21:38.
Leave plenty of time to make your flight from Seattle to BOI. A good rule of thumb is to arrive at least two hours before international departures and an hour ahead for domestic flights.
Flying during a peak month like July? Popular seasons (like summer, Thanksgiving, Christmas and spring break) can add another hour at security. Be extra cautious and arrive up to four hours before international flights and two hours before domestic departures.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

Enjoy an uninterrupted journey from Seattle-Tacoma International Airport (SEA). Direct flights from Seattle to Boise Air Terminal (Gowen Field) Airport (BOI) are available from here.
Alaska Airlines is a popular airline that offers direct flights from Seattle to Boise Air Terminal (Gowen Field) Airport taking off from SEA.
From central Seattle, SEA is around 23 kilometres away. Visit the official airport website or use navigation apps to find the best way to get there.
Want a relaxed start to your break? Stay near Seattle-Tacoma International Airport. Whether you have an early flight from Seattle to Boise Air Terminal (Gowen Field) Airport or just don't want to be rushed, these hotels have you covered:

Lake Union Sea Plane Base (LKE)

Looking for more options for a direct flight from Seattle to Boise Air Terminal (Gowen Field) (BOI)? Check out the fares jetting out of Lake Union Sea Plane Base (LKE).
Delta operates direct flights from Seattle to BOI departing from LKE. Book your preferred window (or aisle) seat and arrive at your destination in a single stretch.
With public transport, you can travel from central Seattle to LKE in around 23 minutes. The airport is roughly 3 kilometres away, and making the trip by car will take approximately 11 minutes.
It's your vacation, so why not book another night away? Think about staying at one of these hotels near Lake Union Sea Plane Base the day before your flight from Seattle to BOI:

About Boise Air Terminal (Gowen Field) Airport (BOI)

Consider booking a hotel close to BOI if you're catching a late flight from Seattle to Boise Air Terminal (Gowen Field) Airport. Settle into one of these options and avoid the hassle of a long transfer:

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

Boise Air Terminal (Gowen Field) Airport to central Boise takes around 18 minutes in a car. It's approximately 18 kilometres away. See what options are available, such as car rentals, cabs or ride-sharing services.
When travelling on public transport, expect a journey of around 1 hour and 37 minutes.

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

For a one-way ticket from Seattle to Boise Air Terminal (Gowen Field) Airport, C$108 is the best price we've seen. You can also book a return trip starting from C$187. These are currently the lowest fares but may change depending on availability.
You're more likely to score flight tickets from Seattle to BOI when you book 8 months before takeoff. We crunched the flight price data and found that's when fares on this route are generally at their lowest.
You'll score the best savings on your tickets from Seattle to Boise Air Terminal (Gowen Field) Airport if you plan your vacation for May. Take it one step further and use the 'Whole month' tool to see the cheapest day to fly out.
Set up a Price Alert and keep an eye on changes on this route through email or push notifications. You'll be the first to know when prices drop. The right timing can be the key to finding flight tickets from Seattle to BOI.
Use the filters to tailor your flights from Seattle to Boise Air Terminal (Gowen Field) Airport. Enter your ideal departure and arrival times, airlines and number of stops. You can also sort your results by 'Cheapest' to see the best deals.

The best time to fly from Seattle to Boise Air Terminal (Gowen Field) Airport (BOI)

It's time to plan your trip dates for your flight from Seattle to Boise Air Terminal (Gowen Field) Airport. July is the most popular month to visit Boise. If you want a more relaxed vibe, go in May.
Schedule your flight from Seattle to BOI for July if you're eager to explore the city during its warmest month. You can expect temperatures in Boise to range from 15ºC to 35ºC.
If you like cooler conditions, lock in a cheap flight from Seattle to Boise Air Terminal (Gowen Field) Airport in January when temperatures average between -11ºC and 5ºC.

More about Boise

When it comes to searching for somewhere to lay your head, you'll find the best places to stay in Boise right here. Explore these hotels once you've locked in your flight from Seattle to Boise Air Terminal (Gowen Field) Airport:
There are so many things to do and see in this city it can be tricky to know where to start. Idaho State Capitol Building, Old Idaho Penitentiary and Zoo Boise are top sights which should be on any well-planned Boise itinerary.

Complete your Boise trip with a car rental

Get behind the wheel of one of our car rentals in Boise and explore at your own pace. Easily compare prices from trusted providers in one place after booking your hotel and cheap flights from Seattle to Boise Air Terminal (Gowen Field) Airport.