S$128 Cheap Flights from Seattle to Boise

View S$128 flight on Sat, 2 Aug, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Boise Airport (BOI)

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Cheap Flights from Seattle to Boise (SEA-BOI)

Prices were available within the past 7 days and start at S$128 for one-way flights and S$254 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 5 Jul - Mon, 7 Jul
SEA
Seattle
BOI
Boise
S$254 Return, found 17 hours ago
S$254
Return
found 17 hours ago
Select Delta flight, departing Sat, 5 Jul from Seattle to Boise, returning Mon, 7 Jul, priced at S$254 found 17 hours ago
Delta
Sat, 5 Jul - Mon, 7 Jul
SEA
Seattle
BOI
Boise
S$279 Return, found 17 hours ago
S$279
Return
found 17 hours ago
Select Delta flight, departing Sat, 5 Jul from Seattle to Boise, returning Mon, 7 Jul, priced at S$279 found 17 hours ago
Delta
Fri, 4 Jul - Mon, 7 Jul
SEA
Seattle
BOI
Boise
S$304 Return, found 17 hours ago
S$304
Return
found 17 hours ago
Select Delta flight, departing Fri, 4 Jul from Seattle to Boise, returning Mon, 7 Jul, priced at S$304 found 17 hours ago
United
Sat, 5 Jul - Mon, 7 Jul
SEA
Seattle
BOI
Boise
S$330 Return, found 17 hours ago
S$330
Return
found 17 hours ago
Select United flight, departing Sat, 5 Jul from Seattle to Boise, returning Mon, 7 Jul, priced at S$330 found 17 hours ago
Delta
Fri, 4 Jul - Mon, 7 Jul
SEA
Seattle
BOI
Boise
S$330 Return, found 17 hours ago
S$330
Return
found 17 hours ago
Select Delta flight, departing Fri, 4 Jul from Seattle to Boise, returning Mon, 7 Jul, priced at S$330 found 17 hours ago
United
Thu, 10 Jul - Wed, 16 Jul
SEA
Seattle
BOI
Boise
S$355 Return, found 1 day ago
S$355
Return
found 1 day ago
Select United flight, departing Thu, 10 Jul from Seattle to Boise, returning Wed, 16 Jul, priced at S$355 found 1 day ago
Delta
Thu, 10 Jul - Wed, 16 Jul
SEA
Seattle
BOI
Boise
S$356 Return, found 1 day ago
S$356
Return
found 1 day ago
Select Delta flight, departing Thu, 10 Jul from Seattle to Boise, returning Wed, 16 Jul, priced at S$356 found 1 day ago
United
Thu, 10 Jul - Wed, 16 Jul
SEA
Seattle
BOI
Boise
S$369 Return, found 1 day ago
S$369
Return
found 1 day ago
Select United flight, departing Thu, 10 Jul from Seattle to Boise, returning Wed, 16 Jul, priced at S$369 found 1 day ago
American Airlines
Thu, 10 Jul - Wed, 16 Jul
SEA
Seattle
BOI
Boise
S$456 Return, found 1 day ago
S$456
Return
found 1 day ago
Select American Airlines flight, departing Thu, 10 Jul from Seattle to Boise, returning Wed, 16 Jul, priced at S$456 found 1 day ago
Alaska Airlines
Thu, 10 Jul - Mon, 14 Jul
PAE
Seattle
BOI
Boise
S$1,054 Return, found 1 day ago
S$1,054
Return
found 1 day ago
Select Alaska Airlines flight, departing Thu, 10 Jul from Seattle to Boise, returning Mon, 14 Jul, priced at S$1,054 found 1 day ago
Seattle to Boise route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Boise
Airlines serving
American Airlines, Delta, United
Return price
S$246
Distance
636 km
Average flight time
2 hours 28 mins

Perfect flights from Seattle to Boise

Your Journey from Seattle to Boise

Start your unforgettable journey with Expedia. Our broad selection of flights from Seattle to Boise caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Delta, United, American Airlines, Alaska Airlines. Our selection of flights from Seattle - Tacoma Intl. to Boise caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Seattle to Boise Flights

Experience the joy of finding cheap flights from Seattle - Tacoma Intl. to Boise that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$128 and roundtrip prices from S$254*.
 

Pre-Flight Essentials

Ensure a smooth journey from Seattle to Boise with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Boise

Picture yourself stepping off the plane in Boise and immersing yourself in the unique atmosphere of Boise. From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Seattle to Boise Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Seattle to Boise.
 

Beyond the Flight – Exploring Boise

With Expedia, your adventure extends beyond the flight. Explore Boise at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Seattle to Boise with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Seattle to Boise with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from Seattle - Tacoma Intl. Airport (SEA) to BOI?
Pack your bags, because round-trip flights between Seattle - Tacoma Intl. Airport (SEA) and BOI start from S$254. That’s based on airfares listed within the last 7 days on Expedia for flights departing within the next year. Prices can rise quickly, so book today to nab the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Seattle - Tacoma Intl. Airport (SEA) to BOI?
The majority of flights can be cancelled online, but whether you incur a fee depends on your airline. If you do need to cancel your break, follow the easy instructions in the Customer Service Portal.
How do I find cheap flights from Seattle - Tacoma Intl. Airport (SEA) to BOI that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for SEA to Boise Airport (BOI) flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from Seattle - Tacoma Intl. Airport (SEA) to BOI?
It’s only 640 kilometres between SEA and Boise Airport (BOI). Chances are you’ll spend more time travelling to and from the airport than you will actually flying!
Which airlines fly direct from Sea-Tac Airport to Boise Airport (BOI)?
There are several airlines that fly directly from Seattle - Tacoma Intl. Airport (SEA) to Boise Airport (BOI). Alaska Airlines (AS) is a popular option, offering 321 flights every month. Another airline operating on this route is Delta Air Lines (DL). You’ll have 182 flights each month to take your pick of.
Are Seattle - Tacoma Intl. Airport (SEA) to BOI flight tickets cheaper when they're purchased at the last minute?
Flight prices go up and down like a yo-yo, so there are no guarantees. While last-minute deals between SEA and Boise Airport are possible, it also makes sense to monitor prices well before you fly. In fact, some air carriers publish their prices up to 12 months ahead of the departure date. Expedia is continuously updating the biggest airfare bargains around, so check back often and be ready to pounce when the price is low.

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Seattle Airports

Seattle Paine Field Intl. Airport

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