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

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Alaska Airlines Flight 3 Route Deals From $158

The cheapest prices found with in the last 7 days for return flights were $274 and $158 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Aug 10 - Wed, Aug 19
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$274 Roundtrip, found 1 hour ago
$274
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Mon, Aug 10 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Wed, Aug 19, priced at $274 found 1 hour ago
Tue, Aug 25 - Sat, Aug 29
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$282 Roundtrip, found 11 hours ago
$282
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Tue, Aug 25 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Sat, Aug 29, priced at $282 found 11 hours ago
Tue, Aug 25 - Sat, Aug 29
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$292 Roundtrip, found 11 hours ago
$292
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Tue, Aug 25 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Sat, Aug 29, priced at $292 found 11 hours ago
Wed, Jun 3 - Tue, Jun 9
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$301 Roundtrip, just found
$301
Roundtrip
just found
Select Alaska Airlines flight, departing Wed, Jun 3 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Tue, Jun 9, priced at $301 just found
Sat, Sep 12 - Fri, Sep 18
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$305 Roundtrip, found 3 hours ago
$305
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Sat, Sep 12 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Fri, Sep 18, priced at $305 found 3 hours ago
Sat, Sep 5 - Wed, Sep 9
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$310 Roundtrip, found 2 days ago
$310
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sat, Sep 5 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Wed, Sep 9, priced at $310 found 2 days 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.