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 $83 and $59 for one-way flights to San Francisco Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Dec 3 - Mon, Dec 7
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$83 Roundtrip, found 5 hours ago
$83
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Thu, Dec 3 from Los Angeles Intl. to San Francisco Intl., returning Mon, Dec 7, priced at $83 found 5 hours ago
Thu, Nov 12 - Sun, Nov 15
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$93 Roundtrip, found 5 hours ago
$93
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Thu, Nov 12 from Los Angeles Intl. to San Francisco Intl., returning Sun, Nov 15, priced at $93 found 5 hours ago
Sun, Nov 8 - Sat, Nov 14
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$99 Roundtrip, found 13 hours ago
$99
Roundtrip
found 13 hours ago
Select Alaska Airlines flight, departing Sun, Nov 8 from Los Angeles Intl. to San Francisco Intl., returning Sat, Nov 14, priced at $99 found 13 hours ago
Mon, Nov 23 - Thu, Nov 26
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$104 Roundtrip, found 14 hours ago
$104
Roundtrip
found 14 hours ago
Select Alaska Airlines flight, departing Mon, Nov 23 from Los Angeles Intl. to San Francisco Intl., returning Thu, Nov 26, priced at $104 found 14 hours ago
Wed, Oct 21 - Tue, Oct 27
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$113 Roundtrip, just found
$113
Roundtrip
just found
Select Alaska Airlines flight, departing Wed, Oct 21 from Los Angeles Intl. to San Francisco Intl., returning Tue, Oct 27, priced at $113 just found
Mon, Feb 22 - Tue, Mar 2
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$113 Roundtrip, just found
$113
Roundtrip
just found
Select Alaska Airlines flight, departing Mon, Feb 22 from Los Angeles Intl. to San Francisco Intl., returning Tue, Mar 2, priced at $113 just found
Wed, Oct 7 - Thu, Oct 8
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$119 Roundtrip, just found
$119
Roundtrip
just found
Select Alaska Airlines flight, departing Wed, Oct 7 from Los Angeles Intl. to San Francisco Intl., returning Thu, Oct 8, priced at $119 just found
Fri, Dec 4 - Mon, Dec 7
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$120 Roundtrip, just found
$120
Roundtrip
just found
Select Alaska Airlines flight, departing Fri, Dec 4 from Los Angeles Intl. to San Francisco Intl., returning Mon, Dec 7, priced at $120 just found
Fri, Nov 13 - Mon, Nov 16
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$122 Roundtrip, just found
$122
Roundtrip
just found
Select Alaska Airlines flight, departing Fri, Nov 13 from Los Angeles Intl. to San Francisco Intl., returning Mon, Nov 16, priced at $122 just found
Sat, Nov 14 - Wed, Nov 18
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$123 Roundtrip, found 1 hour ago
$123
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Sat, Nov 14 from Los Angeles Intl. to San Francisco Intl., returning Wed, Nov 18, priced at $123 found 1 hour ago

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.