Alaska Airlines Flight 3 Deals & Information (2025/2026)

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Alaska Airlines Flight 3 Route Deals From $139

The cheapest prices found with in the last 7 days for return flights were $273 and $139 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Sep 9 - Wed, Sep 24
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$273 Roundtrip, found 1 hour ago
$273
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Tue, Sep 9 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Wed, Sep 24, priced at $273 found 1 hour ago
Tue, Sep 9 - Wed, Sep 24
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$277 Roundtrip, found 1 hour ago
$277
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Tue, Sep 9 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Wed, Sep 24, priced at $277 found 1 hour ago
Wed, Sep 3 - Sat, Sep 13
DCA
Ronald Reagan Washington National
PAE
Seattle Paine Field Intl. Airport
$372 Roundtrip, found 14 hours ago
$372
Roundtrip
found 14 hours ago
Select Alaska Airlines flight, departing Wed, Sep 3 from Ronald Reagan Washington National to Seattle Paine Field Intl. Airport, returning Sat, Sep 13, priced at $372 found 14 hours ago

Frequently asked questions

What route does flight number AS3 take?
You’ll be landing at SEA from National Airport if you’ve booked a ticket on flight number AS3. You’ll be in the sky for 5 hours and 58 minutes during this trip. It’s also worthwhile noting that the flight conveniently travels direct.
How often is AS3 on time?
If you’re traveling on Alaska Airlines flight number AS3 between Ronald Reagan Washington National Airport (DCA) and Seattle - Tacoma Intl. Airport (SEA), it’s assuring to know that 90% of these journeys reach their destination on time. If your plane happens to be delayed, the average wait time is around 16 minutes. This service has a 4.3-star rating.
What terminal does AS3 fly out of?
Flights between National Airport and Sea-Tac Airport are served by flight number AS3, and passengers traveling on this flight normally board from Terminal B.
What kind of plane is on flight number AS3?
The Airbus A321 is the aircraft type most often used for flight AS3. Usually, this flight takes off from DCA and touches down at Sea-Tac Airport.
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 AS3 flight with Travelocity, please visit our Customer Service Portal.