RM431 Cheap Flights from Seattle (SEA) to Boise (BOI)

View RM431 flight on Sat, 30 May 2026Opens 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 RM431 for one-way flights and RM703 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 30 May - Tue, 2 Jun
SEA
Seattle
BOI
Boise
RM703 Return, found 6 hours ago
RM703
Return
found 6 hours ago
Select Delta flight, departing Sat, 30 May from Seattle to Boise, returning Tue, 2 Jun, priced at RM703 found 6 hours ago
United
Sat, 30 May - Tue, 2 Jun
SEA
Seattle
BOI
Boise
RM960 Return, found 6 hours ago
RM960
Return
found 6 hours ago
Select United flight, departing Sat, 30 May from Seattle to Boise, returning Tue, 2 Jun, priced at RM960 found 6 hours ago
United
Sat, 30 May - Tue, 2 Jun
SEA
Seattle
BOI
Boise
RM1,057 Return, found 6 hours ago
RM1,057
Return
found 6 hours ago
Select United flight, departing Sat, 30 May from Seattle to Boise, returning Tue, 2 Jun, priced at RM1,057 found 6 hours ago
United
Sat, 30 May - Tue, 2 Jun
SEA
Seattle
BOI
Boise
RM1,099 Return, found 6 hours ago
RM1,099
Return
found 6 hours ago
Select United flight, departing Sat, 30 May from Seattle to Boise, returning Tue, 2 Jun, priced at RM1,099 found 6 hours ago
United
Sat, 30 May - Tue, 2 Jun
SEA
Seattle
BOI
Boise
RM1,196 Return, found 6 hours ago
RM1,196
Return
found 6 hours ago
Select United flight, departing Sat, 30 May from Seattle to Boise, returning Tue, 2 Jun, priced at RM1,196 found 6 hours ago
Delta
Sat, 30 May - Tue, 2 Jun
SEA
Seattle
BOI
Boise
RM1,356 Return, found 6 hours ago
RM1,356
Return
found 6 hours ago
Select Delta flight, departing Sat, 30 May from Seattle to Boise, returning Tue, 2 Jun, priced at RM1,356 found 6 hours ago
United
Sat, 30 May - Tue, 2 Jun
SEA
Seattle
BOI
Boise
RM1,453 Return, found 6 hours ago
RM1,453
Return
found 6 hours ago
Select United flight, departing Sat, 30 May from Seattle to Boise, returning Tue, 2 Jun, priced at RM1,453 found 6 hours ago
Delta
Sat, 30 May - Tue, 2 Jun
SEA
Seattle
BOI
Boise
RM1,454 Return, found 6 hours ago
RM1,454
Return
found 6 hours ago
Select Delta flight, departing Sat, 30 May from Seattle to Boise, returning Tue, 2 Jun, priced at RM1,454 found 6 hours ago
Delta
Sat, 30 May - Tue, 2 Jun
SEA
Seattle
BOI
Boise
RM1,514 Return, found 6 hours ago
RM1,514
Return
found 6 hours ago
Select Delta flight, departing Sat, 30 May from Seattle to Boise, returning Tue, 2 Jun, priced at RM1,514 found 6 hours ago
American Airlines
Sat, 30 May - Tue, 2 Jun
SEA
Seattle
BOI
Boise
RM1,765 Return, found 6 hours ago
RM1,765
Return
found 6 hours ago
Select American Airlines flight, departing Sat, 30 May from Seattle to Boise, returning Tue, 2 Jun, priced at RM1,765 found 6 hours ago

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 RM703. 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
Return price
RM703
Distance
636 km
Average flight time
2 hours 28 mins

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