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 $117 and $59 for one-way flights to San Francisco Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Dec 1 - Thu, Dec 3
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$117 Roundtrip, just found
$117
Roundtrip
just found
Select Alaska Airlines flight, departing Tue, Dec 1 from Los Angeles Intl. to San Francisco Intl., returning Thu, Dec 3, priced at $117 just found
Sun, Dec 27 - Tue, Dec 29
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$128 Roundtrip, just found
$128
Roundtrip
just found
Select Alaska Airlines flight, departing Sun, Dec 27 from Los Angeles Intl. to San Francisco Intl., returning Tue, Dec 29, priced at $128 just found
Thu, Dec 10 - Sun, Dec 13
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$137 Roundtrip, just found
$137
Roundtrip
just found
Select Alaska Airlines flight, departing Thu, Dec 10 from Los Angeles Intl. to San Francisco Intl., returning Sun, Dec 13, priced at $137 just found
Tue, Dec 1 - Thu, Dec 3
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$147 Roundtrip, just found
$147
Roundtrip
just found
Select Alaska Airlines flight, departing Tue, Dec 1 from Los Angeles Intl. to San Francisco Intl., returning Thu, Dec 3, priced at $147 just found
Wed, Dec 23 - Fri, Dec 25
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$152 Roundtrip, just found
$152
Roundtrip
just found
Select Alaska Airlines flight, departing Wed, Dec 23 from Los Angeles Intl. to San Francisco Intl., returning Fri, Dec 25, priced at $152 just found
Thu, Dec 17 - Sun, Dec 20
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$157 Roundtrip, just found
$157
Roundtrip
just found
Select Alaska Airlines flight, departing Thu, Dec 17 from Los Angeles Intl. to San Francisco Intl., returning Sun, Dec 20, priced at $157 just found
Tue, Dec 1 - Thu, Dec 3
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$162 Roundtrip, just found
$162
Roundtrip
just found
Select Alaska Airlines flight, departing Tue, Dec 1 from Los Angeles Intl. to San Francisco Intl., returning Thu, Dec 3, priced at $162 just found
Thu, Dec 17 - Sun, Dec 20
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$167 Roundtrip, just found
$167
Roundtrip
just found
Select Alaska Airlines flight, departing Thu, Dec 17 from Los Angeles Intl. to San Francisco Intl., returning Sun, Dec 20, priced at $167 just found
Sat, Dec 12 - Wed, Dec 16
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$177 Roundtrip, just found
$177
Roundtrip
just found
Select Alaska Airlines flight, departing Sat, Dec 12 from Los Angeles Intl. to San Francisco Intl., returning Wed, Dec 16, priced at $177 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.