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

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Alaska Airlines Flight 15 Route Deals From $128

The cheapest prices found with in the last 7 days for return flights were $237 and $128 for one-way flights to San Diego Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Oct 14 - Sat, Oct 18
DCA
Ronald Reagan Washington National
SAN
San Diego Intl.
$237 Roundtrip, just found
$237
Roundtrip
just found
Select Alaska Airlines flight, departing Tue, Oct 14 from Ronald Reagan Washington National to San Diego Intl., returning Sat, Oct 18, priced at $237 just found
Wed, Nov 12 - Tue, Nov 18
DCA
Ronald Reagan Washington National
SAN
San Diego Intl.
$240 Roundtrip, found 19 hours ago
$240
Roundtrip
found 19 hours ago
Select Alaska Airlines flight, departing Wed, Nov 12 from Ronald Reagan Washington National to San Diego Intl., returning Tue, Nov 18, priced at $240 found 19 hours ago
Sat, Jan 17 - Sat, Jan 31
DCA
Ronald Reagan Washington National
SAN
San Diego Intl.
$243 Roundtrip, found 16 hours ago
$243
Roundtrip
found 16 hours ago
Select Alaska Airlines flight, departing Sat, Jan 17 from Ronald Reagan Washington National to San Diego Intl., returning Sat, Jan 31, priced at $243 found 16 hours ago
Thu, Dec 4 - Tue, Dec 9
DCA
Ronald Reagan Washington National
SAN
San Diego Intl.
$257 Roundtrip, found 23 hours ago
$257
Roundtrip
found 23 hours ago
Select Alaska Airlines flight, departing Thu, Dec 4 from Ronald Reagan Washington National to San Diego Intl., returning Tue, Dec 9, priced at $257 found 23 hours ago
Thu, Nov 13 - Sat, Nov 15
DCA
Ronald Reagan Washington National
SAN
San Diego Intl.
$261 Roundtrip, just found
$261
Roundtrip
just found
Select Alaska Airlines flight, departing Thu, Nov 13 from Ronald Reagan Washington National to San Diego Intl., returning Sat, Nov 15, priced at $261 just found
Sat, Jan 17 - Sat, Jan 31
DCA
Ronald Reagan Washington National
SAN
San Diego Intl.
$263 Roundtrip, found 16 hours ago
$263
Roundtrip
found 16 hours ago
Select Alaska Airlines flight, departing Sat, Jan 17 from Ronald Reagan Washington National to San Diego Intl., returning Sat, Jan 31, priced at $263 found 16 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.