S$90 Cheap Flights from Seattle to Boise

View S$90 flight on Fri, 6 Feb, 2026Opens in a new window

Popular airlines from Seattle to Boise, ID (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$90 for one-way flights and S$280 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, 22 Jun - Mon, 29 Jun
SEA
Seattle
BOI
Boise
S$280 Return, found 17 hours ago
S$280
Return
found 17 hours ago
Select Delta flight, departing Mon, 22 Jun from Seattle to Boise, returning Mon, 29 Jun, priced at S$280 found 17 hours ago
Delta
Mon, 22 Jun - Mon, 29 Jun
SEA
Seattle
BOI
Boise
S$357 Return, found 17 hours ago
S$357
Return
found 17 hours ago
Select Delta flight, departing Mon, 22 Jun from Seattle to Boise, returning Mon, 29 Jun, priced at S$357 found 17 hours ago
Delta
Mon, 22 Jun - Mon, 29 Jun
SEA
Seattle
BOI
Boise
S$383 Return, found 17 hours ago
S$383
Return
found 17 hours ago
Select Delta flight, departing Mon, 22 Jun from Seattle to Boise, returning Mon, 29 Jun, priced at S$383 found 17 hours ago
Delta
Mon, 22 Jun - Mon, 29 Jun
SEA
Seattle
BOI
Boise
S$434 Return, found 17 hours ago
S$434
Return
found 17 hours ago
Select Delta flight, departing Mon, 22 Jun from Seattle to Boise, returning Mon, 29 Jun, priced at S$434 found 17 hours ago
Delta
Mon, 22 Jun - Mon, 29 Jun
SEA
Seattle
BOI
Boise
S$487 Return, found 17 hours ago
S$487
Return
found 17 hours ago
Select Delta flight, departing Mon, 22 Jun from Seattle to Boise, returning Mon, 29 Jun, priced at S$487 found 17 hours ago
Delta
Mon, 22 Jun - Mon, 29 Jun
SEA
Seattle
BOI
Boise
S$511 Return, found 17 hours ago
S$511
Return
found 17 hours ago
Select Delta flight, departing Mon, 22 Jun from Seattle to Boise, returning Mon, 29 Jun, priced at S$511 found 17 hours ago
Delta
Mon, 22 Jun - Mon, 29 Jun
SEA
Seattle
BOI
Boise
S$537 Return, found 17 hours ago
S$537
Return
found 17 hours ago
Select Delta flight, departing Mon, 22 Jun from Seattle to Boise, returning Mon, 29 Jun, priced at S$537 found 17 hours ago
Delta
Mon, 22 Jun - Mon, 29 Jun
SEA
Seattle
BOI
Boise
S$615 Return, found 17 hours ago
S$615
Return
found 17 hours ago
Select Delta flight, departing Mon, 22 Jun from Seattle to Boise, returning Mon, 29 Jun, priced at S$615 found 17 hours ago
United
Mon, 22 Jun - Mon, 29 Jun
SEA
Seattle
BOI
Boise
S$654 Return, found 17 hours ago
S$654
Return
found 17 hours ago
Select United flight, departing Mon, 22 Jun from Seattle to Boise, returning Mon, 29 Jun, priced at S$654 found 17 hours ago
American Airlines
Mon, 22 Jun - Mon, 29 Jun
SEA
Seattle
BOI
Boise
S$821 Return, found 17 hours ago
S$821
Return
found 17 hours ago
Select American Airlines flight, departing Mon, 22 Jun from Seattle to Boise, returning Mon, 29 Jun, priced at S$821 found 17 hours ago

Find the cheapest month to fly from Seattle (SEA) to Boise (BOI)

January is typically the cheapest month to fly

From S$99 - S$200 per traveller.

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$280. 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.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Boise
Airlines serving
American Airlines, Delta, United
Return price
S$279
Distance
636 km
Average flight time
2 hours 24 mins

Book with confidence

Perfect flights from Seattle to Boise

Your Journey from Seattle to Boise

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With Expedia, you have access to a wide range of airlines, including Delta, United, American 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$90 and roundtrip prices from S$280*.
 

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Experience the Vibrant Boise

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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.
 

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*Note: Prices may vary based on availability and are subject to change.
Perfect flights from Seattle to Boise

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