Alaska Airlines Flight 91 Deals & Information (2026/2027)

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Alaska Airlines Flight 91 Route Deals From $59

The cheapest prices found with in the last 7 days for return flights were $69 and $59 for one-way flights to San Francisco Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Jan 16 - Sat, Jan 23
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$69 Roundtrip, found 5 hours ago
$69
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Sat, Jan 16 from Los Angeles Intl. to San Francisco Intl., returning Sat, Jan 23, priced at $69 found 5 hours ago
Mon, Dec 21 - Wed, Dec 23
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$108 Roundtrip, found 4 hours ago
$108
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Mon, Dec 21 from Los Angeles Intl. to San Francisco Intl., returning Wed, Dec 23, priced at $108 found 4 hours ago
Tue, Dec 15 - Wed, Dec 23
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$117 Roundtrip, just found
$117
Roundtrip
just found
Select Alaska Airlines flight, departing Tue, Dec 15 from Los Angeles Intl. to San Francisco Intl., returning Wed, Dec 23, priced at $117 just found
Tue, Jan 12 - Tue, Jan 19
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$127 Roundtrip, found 1 hour ago
$127
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Tue, Jan 12 from Los Angeles Intl. to San Francisco Intl., returning Tue, Jan 19, priced at $127 found 1 hour ago
Fri, Dec 18 - Tue, Dec 22
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$132 Roundtrip, found 3 hours ago
$132
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Fri, Dec 18 from Los Angeles Intl. to San Francisco Intl., returning Tue, Dec 22, priced at $132 found 3 hours ago
Sat, Dec 5 - Sun, Dec 13
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$137 Roundtrip, just found
$137
Roundtrip
just found
Select Alaska Airlines flight, departing Sat, Dec 5 from Los Angeles Intl. to San Francisco Intl., returning Sun, Dec 13, priced at $137 just found

Frequently asked questions

What route does flight number AS91 take?
You'll be touching down at Sea-Tac Airport from GEG if you've booked a ticket on flight number AS91. You'll be in the sky for 1 hour and 10 minutes on this trip. It's also good to note that the flight conveniently travels non-stop.
What kind of plane is on flight number AS91?
The route for AS91 is almost always Spokane, WA Airport (GEG-Spokane Intl.) to SEA, and the Boeing 737-800 is the type of aircraft you're likely to be jetting off with.
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 AS91 flight with Travelocity, please visit our Customer Service Portal.