Alaska Airlines Flight 409 Deals & Information (2026/2027)

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Alaska Airlines Flight 409 Route Deals From $65

The cheapest prices found with in the last 7 days for return flights were $117 and $65 for one-way flights to San Francisco Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, May 5 - Wed, May 6
PDX
Portland Intl.
SFO
San Francisco Intl.
$117 Roundtrip, found 3 days ago
$117
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, May 5 from Portland Intl. to San Francisco Intl., returning Wed, May 6, priced at $117 found 3 days ago
Sat, Apr 25 - Sat, May 2
PDX
Portland Intl.
SFO
San Francisco Intl.
$129 Roundtrip, just found
$129
Roundtrip
just found
Select Alaska Airlines flight, departing Sat, Apr 25 from Portland Intl. to San Francisco Intl., returning Sat, May 2, priced at $129 just found
Sat, May 23 - Wed, May 27
PDX
Portland Intl.
SFO
San Francisco Intl.
$132 Roundtrip, found 3 hours ago
$132
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Sat, May 23 from Portland Intl. to San Francisco Intl., returning Wed, May 27, priced at $132 found 3 hours ago
Sat, Apr 25 - Sat, May 2
PDX
Portland Intl.
SFO
San Francisco Intl.
$136 Roundtrip, just found
$136
Roundtrip
just found
Select Alaska Airlines flight, departing Sat, Apr 25 from Portland Intl. to San Francisco Intl., returning Sat, May 2, priced at $136 just found
Tue, May 5 - Wed, May 6
PDX
Portland Intl.
SFO
San Francisco Intl.
$137 Roundtrip, found 5 days ago
$137
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Tue, May 5 from Portland Intl. to San Francisco Intl., returning Wed, May 6, priced at $137 found 5 days ago
Sun, Jun 7 - Tue, Jun 9
PDX
Portland Intl.
SFO
San Francisco Intl.
$141 Roundtrip, found 2 hours ago
$141
Roundtrip
found 2 hours ago
Select Alaska Airlines flight, departing Sun, Jun 7 from Portland Intl. to San Francisco Intl., returning Tue, Jun 9, priced at $141 found 2 hours ago
Tue, Apr 14 - Thu, Apr 16
PDX
Portland Intl.
SFO
San Francisco Intl.
$147 Roundtrip, found 1 hour ago
$147
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Tue, Apr 14 from Portland Intl. to San Francisco Intl., returning Thu, Apr 16, priced at $147 found 1 hour ago
Tue, May 5 - Tue, May 12
PDX
Portland Intl.
SFO
San Francisco Intl.
$147 Roundtrip, found 6 days ago
$147
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Tue, May 5 from Portland Intl. to San Francisco Intl., returning Tue, May 12, priced at $147 found 6 days ago
Thu, May 7 - Sat, May 9
PDX
Portland Intl.
SFO
San Francisco Intl.
$149 Roundtrip, just found
$149
Roundtrip
just found
Select Alaska Airlines flight, departing Thu, May 7 from Portland Intl. to San Francisco Intl., returning Sat, May 9, priced at $149 just found
Thu, May 28 - Sun, May 31
PDX
Portland Intl.
SFO
San Francisco Intl.
$153 Roundtrip, found 3 hours ago
$153
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Thu, May 28 from Portland Intl. to San Francisco Intl., returning Sun, May 31, priced at $153 found 3 hours ago

Frequently asked questions

What route does flight number AS409 take?
Flight number AS409 operates non-stop from Portland Intl. Airport (PDX) to Seattle, WA Airport (SEA-Seattle - Tacoma Intl.). During this journey, you'll be in the air for roughly 1 hour. Book ahead to get your preferred seat.
How often is AS409 on time?
Roughly 87% of AS409 flights arrive according to scheduled times — so if you're taking to the skies between PDX and Sea-Tac Airport, you can breathe easy knowing that you'll reach your destination ASAP. In the rare event that this Alaska Airlines plane runs late, the average wait time is around 19 minutes. Due to the airline's high standard, this route has a star rating of 3.85.
What kind of plane is on flight number AS409?
The Airbus A320 is the type of plane that's generally used for flight number AS409. This flight almost always sets off from Portland Airport and arrives at SEA.
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 AS409 flight with Travelocity, please visit our Customer Service Portal.