Alaska Airlines Flight 15 Deals & Information (2025/2026)

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Alaska Airlines Flight 15 Route Deals From $131

The cheapest prices found with in the last 7 days for return flights were $237 and $131 for one-way flights to San Diego Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Oct 25 - Wed, Oct 29
DCA
Ronald Reagan Washington National
SAN
San Diego Intl.
$237 Roundtrip, found 3 hours ago
$237
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Sat, Oct 25 from Ronald Reagan Washington National to San Diego Intl., returning Wed, Oct 29, priced at $237 found 3 hours ago
Sat, Sep 13 - Sat, Sep 20
DCA
Ronald Reagan Washington National
SAN
San Diego Intl.
$242 Roundtrip, just found
$242
Roundtrip
just found
Select Alaska Airlines flight, departing Sat, Sep 13 from Ronald Reagan Washington National to San Diego Intl., returning Sat, Sep 20, priced at $242 just found
Sat, Nov 15 - Tue, Nov 18
DCA
Ronald Reagan Washington National
SAN
San Diego Intl.
$256 Roundtrip, found 23 hours ago
$256
Roundtrip
found 23 hours ago
Select Alaska Airlines flight, departing Sat, Nov 15 from Ronald Reagan Washington National to San Diego Intl., returning Tue, Nov 18, priced at $256 found 23 hours ago
Fri, Dec 5 - Tue, Dec 9
DCA
Ronald Reagan Washington National
SAN
San Diego Intl.
$257 Roundtrip, found 2 hours ago
$257
Roundtrip
found 2 hours ago
Select Alaska Airlines flight, departing Fri, Dec 5 from Ronald Reagan Washington National to San Diego Intl., returning Tue, Dec 9, priced at $257 found 2 hours ago
Sat, Nov 8 - Sat, Nov 15
DCA
Ronald Reagan Washington National
SAN
San Diego Intl.
$267 Roundtrip, found 4 hours ago
$267
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Sat, Nov 8 from Ronald Reagan Washington National to San Diego Intl., returning Sat, Nov 15, priced at $267 found 4 hours ago
Sat, Nov 8 - Sat, Nov 15
DCA
Ronald Reagan Washington National
SAN
San Diego Intl.
$268 Roundtrip, found 4 hours ago
$268
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Sat, Nov 8 from Ronald Reagan Washington National to San Diego Intl., returning Sat, Nov 15, priced at $268 found 4 hours ago
Thu, Nov 20 - Fri, Nov 28
DCA
Ronald Reagan Washington National
SAN
San Diego Intl.
$277 Roundtrip, found 6 hours ago
$277
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Thu, Nov 20 from Ronald Reagan Washington National to San Diego Intl., returning Fri, Nov 28, priced at $277 found 6 hours ago
Sun, Dec 7 - Wed, Dec 10
DCA
Ronald Reagan Washington National
SAN
San Diego Intl.
$287 Roundtrip, found 2 hours ago
$287
Roundtrip
found 2 hours ago
Select Alaska Airlines flight, departing Sun, Dec 7 from Ronald Reagan Washington National to San Diego Intl., returning Wed, Dec 10, priced at $287 found 2 hours ago
Sat, Nov 8 - Wed, Nov 12
DCA
Ronald Reagan Washington National
SAN
San Diego Intl.
$293 Roundtrip, found 4 hours ago
$293
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Sat, Nov 8 from Ronald Reagan Washington National to San Diego Intl., returning Wed, Nov 12, priced at $293 found 4 hours ago
Sun, Dec 7 - Wed, Dec 10
DCA
Ronald Reagan Washington National
SAN
San Diego Intl.
$297 Roundtrip, found 2 hours ago
$297
Roundtrip
found 2 hours ago
Select Alaska Airlines flight, departing Sun, Dec 7 from Ronald Reagan Washington National to San Diego Intl., returning Wed, Dec 10, priced at $297 found 2 hours ago

Frequently asked questions

What route does flight number AS15 take?
AS15 operates between BOS and Seattle - Tacoma Intl. Airport (SEA) and flies direct. This journey usually takes 6 hours and 10 minutes.
What terminal does AS15 fly out of?
Direct flights to and from Boston, MA Airport (BOS-Logan Intl.) and Sea-Tac Airport are served by flight number AS15, and passengers booked on this flight usually board from Terminal B.
What kind of plane is on flight number AS15?
Get ready to step aboard an Airbus A321 if you've reserved a seat on flight AS15. Almost all flights from Logan Intl. Airport (BOS) to Seattle - Tacoma Intl. Airport (SEA) operate using this aircraft model.
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 AS15 flight with Travelocity, please visit our Customer Service Portal.