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

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Alaska Airlines Flight 91 Route Deals From $69

The cheapest prices found with in the last 7 days for return flights were $93 and $69 for one-way flights to San Francisco Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Oct 14 - Mon, Oct 19
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$93 Roundtrip, just found
$93
Roundtrip
just found
Select Alaska Airlines flight, departing Wed, Oct 14 from Los Angeles Intl. to San Francisco Intl., returning Mon, Oct 19, priced at $93 just found
Wed, Oct 14 - Mon, Oct 19
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$94 Roundtrip, just found
$94
Roundtrip
just found
Select Alaska Airlines flight, departing Wed, Oct 14 from Los Angeles Intl. to San Francisco Intl., returning Mon, Oct 19, priced at $94 just found
Wed, Oct 14 - Mon, Oct 19
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$112 Roundtrip, just found
$112
Roundtrip
just found
Select Alaska Airlines flight, departing Wed, Oct 14 from Los Angeles Intl. to San Francisco Intl., returning Mon, Oct 19, priced at $112 just found
Wed, Oct 14 - Mon, Oct 19
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$125 Roundtrip, just found
$125
Roundtrip
just found
Select Alaska Airlines flight, departing Wed, Oct 14 from Los Angeles Intl. to San Francisco Intl., returning Mon, Oct 19, priced at $125 just found
Thu, Oct 8 - Mon, Oct 12
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$139 Roundtrip, just found
$139
Roundtrip
just found
Select Alaska Airlines flight, departing Thu, Oct 8 from Los Angeles Intl. to San Francisco Intl., returning Mon, Oct 12, priced at $139 just found
Fri, Nov 13 - Wed, Nov 18
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$142 Roundtrip, just found
$142
Roundtrip
just found
Select Alaska Airlines flight, departing Fri, Nov 13 from Los Angeles Intl. to San Francisco Intl., returning Wed, Nov 18, priced at $142 just found
Thu, Oct 8 - Mon, Oct 12
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$143 Roundtrip, just found
$143
Roundtrip
just found
Select Alaska Airlines flight, departing Thu, Oct 8 from Los Angeles Intl. to San Francisco Intl., returning Mon, Oct 12, priced at $143 just found
Thu, Oct 29 - Sun, Nov 1
LAX
Los Angeles Intl.
SFO
San Francisco Intl.
$170 Roundtrip, just found
$170
Roundtrip
just found
Select Alaska Airlines flight, departing Thu, Oct 29 from Los Angeles Intl. to San Francisco Intl., returning Sun, Nov 1, priced at $170 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.