Popular airlines from Seattle to Cascade

Alaska Airlines
Alaska Airlines
Delta
Delta
United
United
Southwest Airlines
Southwest Airlines
American Airlines
American Airlines
Hawaiian Airlines
Hawaiian Airlines

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Today's featured flight deals from Seattle to Cascade

Nonstop

Carry-on included

Lower price than typical

Seattle (SEA) to Boise (BOI).
Departing on Sun, Aug 3 at 7:20am from Seattle, arriving at 9:57am in Boise.
Returning on Sun, Aug 10 at 7:45pm from Boise, arriving at 8:30pm in Seattle.
Delta, nonstop.
35% less than typical

$197

Select Delta flight departing on Sun, Aug 3 at 7:20am from Seattle, returning on Sun, Aug 10 at 7:45pm from Boise priced at $197
Seattle (SEA) to Boise (BOI).
Departing on Thu, Jul 24 at 4:25pm from Seattle, arriving at 6:59pm in Boise.
Returning on Thu, Jul 31 at 4:20pm from Boise, arriving at 5:00pm in Seattle.
Delta, nonstop.
25% less than typical

$237

Select Delta flight departing on Thu, Jul 24 at 4:25pm from Seattle, returning on Thu, Jul 31 at 4:20pm from Boise priced at $237
Seattle (SEA) to Boise (BOI).
Departing on Thu, Jul 24 at 7:40pm from Seattle, arriving at 10:17pm in Boise.
Returning on Thu, Jul 31 at 7:45pm from Boise, arriving at 8:30pm in Seattle.
Delta, nonstop.
25% less than typical

$237

Select Delta flight departing on Thu, Jul 24 at 7:40pm from Seattle, returning on Thu, Jul 31 at 7:45pm from Boise priced at $237

Seattle (SEA) to Boise (BOI).
Departing on Thu, Jul 24 at 7:20am from Seattle, arriving at 9:57am in Boise.
Returning on Thu, Jul 31 at 4:20pm from Boise, arriving at 5:00pm in Seattle.
Delta, nonstop.
25% less than typical

$237

Select Delta flight departing on Thu, Jul 24 at 7:20am from Seattle, returning on Thu, Jul 31 at 4:20pm from Boise priced at $237
Seattle (SEA) to Boise (BOI).
Departing on Thu, Jul 24 at 1:10pm from Seattle, arriving at 3:40pm in Boise.
Returning on Thu, Jul 31 at 5:15am from Boise, arriving at 5:55am in Seattle.
Delta, nonstop.
25% less than typical

$237

Select Delta flight departing on Thu, Jul 24 at 1:10pm from Seattle, returning on Thu, Jul 31 at 5:15am from Boise priced at $237
Seattle (SEA) to Boise (BOI).
Departing on Thu, Aug 14 at 12:31pm from Seattle, arriving at 3:04pm in Boise.
Returning on Sun, Aug 17 at 7:12pm from Boise, arriving at 7:50pm in Seattle.
Alaska Airlines, nonstop.
35% less than typical

$157

Select Alaska Airlines flight departing on Thu, Aug 14 at 12:31pm from Seattle, returning on Sun, Aug 17 at 7:12pm from Boise priced at $157
Seattle (SEA) to Boise (BOI).
Departing on Thu, Aug 21 at 8:03am from Seattle, arriving at 10:35am in Boise.
Returning on Sun, Aug 24 at 5:45pm from Boise, arriving at 6:22pm in Seattle.
Alaska Airlines, nonstop.
35% less than typical

$157

Select Alaska Airlines flight departing on Thu, Aug 21 at 8:03am from Seattle, returning on Sun, Aug 24 at 5:45pm from Boise priced at $157
Seattle (SEA) to Boise (BOI).
Departing on Wed, Aug 20 at 2:51pm from Seattle, arriving at 5:18pm in Boise.
Returning on Sat, Aug 23 at 5:45pm from Boise, arriving at 6:22pm in Seattle.
Alaska Airlines, nonstop.
35% less than typical

$117

Select Alaska Airlines flight departing on Wed, Aug 20 at 2:51pm from Seattle, returning on Sat, Aug 23 at 5:45pm from Boise priced at $117
Seattle (SEA) to Boise (BOI).
Departing on Fri, Aug 8 at 9:50am from Seattle, arriving at 12:20pm in Boise.
Returning on Tue, Aug 12 at 5:43pm from Boise, arriving at 6:20pm in Seattle.
Alaska Airlines, nonstop.
20% less than typical

$157

Select Alaska Airlines flight departing on Fri, Aug 8 at 9:50am from Seattle, returning on Tue, Aug 12 at 5:43pm from Boise priced at $157

Cheap Flights from Seattle to Cascade (SEA-BOI)

Prices were available within the past 7 days and start at $51 for one-way flights and $101 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

All deals

One way

Roundtrip

Wed, Oct 8 - Tue, Oct 14

SEA

Seattle

BOI

Boise

$101

Roundtrip

found 1 hour ago

Sat, Oct 4 - Wed, Oct 8

SEA

Seattle

BOI

Boise

$106

Roundtrip

found 5 hours ago

Sat, Aug 23 - Tue, Aug 26

SEA

Seattle

BOI

Boise

$117

Roundtrip

just found

Sat, Aug 23 - Tue, Aug 26

SEA

Seattle

BOI

Boise

$117

Roundtrip

just found

Tue, Aug 12 - Mon, Aug 18

PAE

Seattle

BOI

Boise

$174

Roundtrip

found 22 hours ago

Sat, Aug 23 - Tue, Aug 26

SEA

Seattle

BOI

Boise

$177

Roundtrip

just found

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

January is typically the cheapest month to fly

From $76 - $197 per traveler.

Explore a world of travel with Expedia

*Available to One Key members.

Unlock instant savings with Member Prices

Flights to Cascade from Seattle - $51

Travelers

Popular airlines from Seattle to Cascade

Plan, book, fly with confidence

Be in the know

Book smarter

Earn twice

Today's featured flight deals from Seattle to Cascade

Cheap Flights from Seattle to Cascade (SEA-BOI)

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

January is typically the cheapest month to fly

Explore a world of travel with Expedia

Unlock instant savings with Member Prices

Flights to Cascade from Seattle - $51

Popular airlines from Seattle to Cascade

Plan, book, fly with confidence

Be in the know

Book smarter

Earn twice

Today's featured flight deals from Seattle to Cascade

Cheap Flights from Seattle to Cascade (SEA-BOI)

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

January is typically the cheapest month to flyJanuary is typically the cheapest month to fly

Graph displaying average flight prices per month

Explore a world of travel with Expedia

Explore a world of travel with Expedia

January is typically the cheapest month to fly