Alaska Airlines Flight 3 Deals & Information (2026/2027)

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Alaska Airlines Flight 3 Route Deals From $153

The cheapest prices found with in the last 7 days for return flights were $273 and $153 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Aug 25 - Tue, Sep 1
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$273 Roundtrip, found 2 days ago
$273
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Aug 25 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Tue, Sep 1, priced at $273 found 2 days ago
Wed, Aug 12 - Wed, Aug 19
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$295 Roundtrip, found 8 hours ago
$295
Roundtrip
found 8 hours ago
Select Alaska Airlines flight, departing Wed, Aug 12 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Wed, Aug 19, priced at $295 found 8 hours ago
Wed, Aug 26 - Wed, Sep 2
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$298 Roundtrip, found 18 hours ago
$298
Roundtrip
found 18 hours ago
Select Alaska Airlines flight, departing Wed, Aug 26 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Wed, Sep 2, priced at $298 found 18 hours ago
Wed, Aug 19 - Wed, Sep 2
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$300 Roundtrip, found 15 hours ago
$300
Roundtrip
found 15 hours ago
Select Alaska Airlines flight, departing Wed, Aug 19 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Wed, Sep 2, priced at $300 found 15 hours ago
Tue, Sep 8 - Thu, Sep 17
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$305 Roundtrip, found 2 days ago
$305
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Sep 8 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Thu, Sep 17, priced at $305 found 2 days ago
Tue, Sep 8 - Wed, Sep 16
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$308 Roundtrip, found 10 hours ago
$308
Roundtrip
found 10 hours ago
Select Alaska Airlines flight, departing Tue, Sep 8 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Wed, Sep 16, priced at $308 found 10 hours ago
Tue, Aug 18 - Tue, Aug 25
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$310 Roundtrip, found 17 hours ago
$310
Roundtrip
found 17 hours ago
Select Alaska Airlines flight, departing Tue, Aug 18 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Tue, Aug 25, priced at $310 found 17 hours ago
Tue, Sep 8 - Wed, Sep 16
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$312 Roundtrip, found 10 hours ago
$312
Roundtrip
found 10 hours ago
Select Alaska Airlines flight, departing Tue, Sep 8 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Wed, Sep 16, priced at $312 found 10 hours ago
Tue, Sep 1 - Sat, Sep 5
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$318 Roundtrip, found 7 hours ago
$318
Roundtrip
found 7 hours ago
Select Alaska Airlines flight, departing Tue, Sep 1 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Sat, Sep 5, priced at $318 found 7 hours ago
Sat, Sep 5 - Wed, Sep 9
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$320 Roundtrip, found 12 hours ago
$320
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Sat, Sep 5 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Wed, Sep 9, priced at $320 found 12 hours ago
Mon, Jun 1 - Sat, Jun 6
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$327 Roundtrip, found 1 hour ago
$327
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Mon, Jun 1 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Sat, Jun 6, priced at $327 found 1 hour 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.