Alaska Airlines Flight 665 Deals & Information (2026/2027)

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Alaska Airlines Flight 665 Route Deals From

The cheapest prices found with in the last 7 days for return flights were $177 and for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, May 2 - Sat, May 9
MSO
Missoula Intl.
SEA
Seattle - Tacoma Intl.
$177 Roundtrip, found 4 days ago
$177
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, May 2 from Missoula Intl. to Seattle - Tacoma Intl., returning Sat, May 9, priced at $177 found 4 days ago
Fri, May 22 - Sun, May 24
MSO
Missoula Intl.
SEA
Seattle - Tacoma Intl.
$181 Roundtrip, found 4 days ago
$181
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Fri, May 22 from Missoula Intl. to Seattle - Tacoma Intl., returning Sun, May 24, priced at $181 found 4 days ago
Sat, May 2 - Sat, May 9
MSO
Missoula Intl.
SEA
Seattle - Tacoma Intl.
$187 Roundtrip, found 4 days ago
$187
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, May 2 from Missoula Intl. to Seattle - Tacoma Intl., returning Sat, May 9, priced at $187 found 4 days ago
Wed, May 13 - Sun, May 24
MSO
Missoula Intl.
SEA
Seattle - Tacoma Intl.
$192 Roundtrip, found 5 days ago
$192
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, May 13 from Missoula Intl. to Seattle - Tacoma Intl., returning Sun, May 24, priced at $192 found 5 days ago
Sat, May 2 - Sat, May 9
MSO
Missoula Intl.
SEA
Seattle - Tacoma Intl.
$197 Roundtrip, found 2 days ago
$197
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sat, May 2 from Missoula Intl. to Seattle - Tacoma Intl., returning Sat, May 9, priced at $197 found 2 days ago
Fri, May 22 - Sun, May 24
MSO
Missoula Intl.
SEA
Seattle - Tacoma Intl.
$202 Roundtrip, found 4 days ago
$202
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Fri, May 22 from Missoula Intl. to Seattle - Tacoma Intl., returning Sun, May 24, priced at $202 found 4 days ago
Sat, May 9 - Sat, May 16
MSO
Missoula Intl.
SEA
Seattle - Tacoma Intl.
$202 Roundtrip, found 1 hour ago
$202
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Sat, May 9 from Missoula Intl. to Seattle - Tacoma Intl., returning Sat, May 16, priced at $202 found 1 hour ago
Sat, May 2 - Sun, May 3
MSO
Missoula Intl.
SEA
Seattle - Tacoma Intl.
$207 Roundtrip, found 2 days ago
$207
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sat, May 2 from Missoula Intl. to Seattle - Tacoma Intl., returning Sun, May 3, priced at $207 found 2 days ago
Wed, May 6 - Fri, May 15
MSO
Missoula Intl.
SEA
Seattle - Tacoma Intl.
$213 Roundtrip, found 9 hours ago
$213
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Wed, May 6 from Missoula Intl. to Seattle - Tacoma Intl., returning Fri, May 15, priced at $213 found 9 hours ago
Fri, May 15 - Sun, May 17
MSO
Missoula Intl.
SEA
Seattle - Tacoma Intl.
$223 Roundtrip, found 7 hours ago
$223
Roundtrip
found 7 hours ago
Select Alaska Airlines flight, departing Fri, May 15 from Missoula Intl. to Seattle - Tacoma Intl., returning Sun, May 17, priced at $223 found 7 hours ago
Fri, May 8 - Sun, May 10
MSO
Missoula Intl.
SEA
Seattle - Tacoma Intl.
$232 Roundtrip, found 4 days ago
$232
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Fri, May 8 from Missoula Intl. to Seattle - Tacoma Intl., returning Sun, May 10, priced at $232 found 4 days ago
Fri, May 15 - Mon, May 18
MSO
Missoula Intl.
SEA
Seattle - Tacoma Intl.
$233 Roundtrip, found 7 hours ago
$233
Roundtrip
found 7 hours ago
Select Alaska Airlines flight, departing Fri, May 15 from Missoula Intl. to Seattle - Tacoma Intl., returning Mon, May 18, priced at $233 found 7 hours ago
Sat, May 2 - Sun, May 3
MSO
Missoula Intl.
SEA
Seattle - Tacoma Intl.
$237 Roundtrip, found 4 days ago
$237
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, May 2 from Missoula Intl. to Seattle - Tacoma Intl., returning Sun, May 3, priced at $237 found 4 days ago
Sat, May 2 - Sat, May 9
MSO
Missoula Intl.
SEA
Seattle - Tacoma Intl.
$247 Roundtrip, found 4 days ago
$247
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, May 2 from Missoula Intl. to Seattle - Tacoma Intl., returning Sat, May 9, priced at $247 found 4 days ago
Tue, Jun 9 - Tue, Jun 16
MSO
Missoula Intl.
SEA
Seattle - Tacoma Intl.
$249 Roundtrip, found 5 hours ago
$249
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Tue, Jun 9 from Missoula Intl. to Seattle - Tacoma Intl., returning Tue, Jun 16, priced at $249 found 5 hours ago
Tue, May 12 - Fri, May 15
MSO
Missoula Intl.
SEA
Seattle - Tacoma Intl.
$253 Roundtrip, found 1 day ago
$253
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, May 12 from Missoula Intl. to Seattle - Tacoma Intl., returning Fri, May 15, priced at $253 found 1 day ago
Mon, May 4 - Tue, May 5
MSO
Missoula Intl.
SEA
Seattle - Tacoma Intl.
$254 Roundtrip, found 10 hours ago
$254
Roundtrip
found 10 hours ago
Select Alaska Airlines flight, departing Mon, May 4 from Missoula Intl. to Seattle - Tacoma Intl., returning Tue, May 5, priced at $254 found 10 hours ago