Cheap Flights from Seattle to West Boise

View €67 flight on Sat, 16 Aug 2025Opens in a new window

Popular airlines from Seattle to West Boise

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

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Cheap flights from Seattle to West Boise (SEA-BOI)

Prices were available within the past 7 days and start at €67 for one-way flights and €117 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 16 Aug - Sun, 17 Aug
SEA
Seattle
BOI
Boise
€117 Return, found 3 hours ago
€117
Return
found 3 hours ago
Select Delta flight, departing Sat, 16 Aug from Seattle to Boise, returning Sun, 17 Aug, priced at €117 found 3 hours ago
Delta
Sat, 16 Aug - Sun, 17 Aug
SEA
Seattle
BOI
Boise
€134 Return, found 3 hours ago
€134
Return
found 3 hours ago
Select Delta flight, departing Sat, 16 Aug from Seattle to Boise, returning Sun, 17 Aug, priced at €134 found 3 hours ago
Delta
Sat, 16 Aug - Sun, 17 Aug
SEA
Seattle
BOI
Boise
€151 Return, found 3 hours ago
€151
Return
found 3 hours ago
Select Delta flight, departing Sat, 16 Aug from Seattle to Boise, returning Sun, 17 Aug, priced at €151 found 3 hours ago
Delta
Sat, 16 Aug - Sun, 17 Aug
SEA
Seattle
BOI
Boise
€168 Return, found 3 hours ago
€168
Return
found 3 hours ago
Select Delta flight, departing Sat, 16 Aug from Seattle to Boise, returning Sun, 17 Aug, priced at €168 found 3 hours ago
United
Sat, 16 Aug - Sun, 17 Aug
SEA
Seattle
BOI
Boise
€220 Return, found 3 hours ago
€220
Return
found 3 hours ago
Select United flight, departing Sat, 16 Aug from Seattle to Boise, returning Sun, 17 Aug, priced at €220 found 3 hours ago
American Airlines
Sat, 16 Aug - Sun, 17 Aug
SEA
Seattle
BOI
Boise
€339 Return, found 3 hours ago
€339
Return
found 3 hours ago
Select American Airlines flight, departing Sat, 16 Aug from Seattle to Boise, returning Sun, 17 Aug, priced at €339 found 3 hours ago

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

January is typically the cheapest month to fly

From €65 - €167 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.