Alaska Airlines Flight 138 Deals & Information (2026/2027)

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Alaska Airlines Flight 138 Route Deals From $99

The cheapest prices found with in the last 7 days for return flights were $158 and $99 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, May 6 - Sat, May 9
MSO
Missoula Intl.
SEA
Seattle - Tacoma Intl.
$158 Roundtrip, found 1 day ago
$158
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Wed, May 6 from Missoula Intl. to Seattle - Tacoma Intl., returning Sat, May 9, priced at $158 found 1 day ago
Wed, Mar 25 - Sat, Mar 28
MSO
Missoula Intl.
SEA
Seattle - Tacoma Intl.
$162 Roundtrip, found 17 hours ago
$162
Roundtrip
found 17 hours ago
Select Alaska Airlines flight, departing Wed, Mar 25 from Missoula Intl. to Seattle - Tacoma Intl., returning Sat, Mar 28, priced at $162 found 17 hours ago
Fri, Mar 6 - Mon, Mar 9
MSO
Missoula Intl.
SEA
Seattle - Tacoma Intl.
$164 Roundtrip, found 4 days ago
$164
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Fri, Mar 6 from Missoula Intl. to Seattle - Tacoma Intl., returning Mon, Mar 9, priced at $164 found 4 days ago
Fri, May 1 - Tue, May 5
MSO
Missoula Intl.
SEA
Seattle - Tacoma Intl.
$169 Roundtrip, found 1 day ago
$169
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, May 1 from Missoula Intl. to Seattle - Tacoma Intl., returning Tue, May 5, priced at $169 found 1 day ago
Mon, Mar 2 - Sat, Mar 7
MSO
Missoula Intl.
SEA
Seattle - Tacoma Intl.
$172 Roundtrip, found 22 hours ago
$172
Roundtrip
found 22 hours ago
Select Alaska Airlines flight, departing Mon, Mar 2 from Missoula Intl. to Seattle - Tacoma Intl., returning Sat, Mar 7, priced at $172 found 22 hours ago
Thu, Mar 26 - Sat, Mar 28
MSO
Missoula Intl.
SEA
Seattle - Tacoma Intl.
$174 Roundtrip, found 17 hours ago
$174
Roundtrip
found 17 hours ago
Select Alaska Airlines flight, departing Thu, Mar 26 from Missoula Intl. to Seattle - Tacoma Intl., returning Sat, Mar 28, priced at $174 found 17 hours ago
Fri, May 1 - Sun, May 3
MSO
Missoula Intl.
SEA
Seattle - Tacoma Intl.
$179 Roundtrip, found 1 day ago
$179
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, May 1 from Missoula Intl. to Seattle - Tacoma Intl., returning Sun, May 3, priced at $179 found 1 day ago
Thu, Mar 26 - Sun, Mar 29
MSO
Missoula Intl.
SEA
Seattle - Tacoma Intl.
$185 Roundtrip, found 17 hours ago
$185
Roundtrip
found 17 hours ago
Select Alaska Airlines flight, departing Thu, Mar 26 from Missoula Intl. to Seattle - Tacoma Intl., returning Sun, Mar 29, priced at $185 found 17 hours ago
Sat, Apr 25 - Tue, May 12
MSO
Missoula Intl.
SEA
Seattle - Tacoma Intl.
$185 Roundtrip, found 3 days ago
$185
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Apr 25 from Missoula Intl. to Seattle - Tacoma Intl., returning Tue, May 12, priced at $185 found 3 days ago
Sat, Mar 7 - Tue, Mar 10
MSO
Missoula Intl.
SEA
Seattle - Tacoma Intl.
$187 Roundtrip, found 15 hours ago
$187
Roundtrip
found 15 hours ago
Select Alaska Airlines flight, departing Sat, Mar 7 from Missoula Intl. to Seattle - Tacoma Intl., returning Tue, Mar 10, priced at $187 found 15 hours ago

Frequently asked questions

What route does flight number AS138 take?
AS138 flies non-stop from Ted Stevens Anchorage Intl. Airport (ANC) to Chicago, IL Airport (ORD-O'Hare Intl.). During this trip, you can expect to be in the air for approximately 6 hours and 35 minutes. Consider booking ahead to get your favorite seat.
What terminal does AS138 fly out of?
Direct flights to and from ANC and ORD are served by flight number AS138, and those traveling on this flight usually jet off from Terminal S.
What kind of plane is on flight number AS138?
Get set to hop on board a Boeing 737-900 if you've reserved a seat on flight AS138. Almost all services from Anchorage, AK Airport (ANC-Ted Stevens Anchorage Intl.) to O'Hare Airport are operated using this aircraft type.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your AS138 flight with Travelocity, please visit our Customer Service Portal.