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

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Alaska Airlines Flight 3 Route Deals From $148

The cheapest prices found with in the last 7 days for return flights were $269 and $148 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, May 5 - Fri, May 8
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$269 Roundtrip, found 17 hours ago
$269
Roundtrip
found 17 hours ago
Select Alaska Airlines flight, departing Tue, May 5 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Fri, May 8, priced at $269 found 17 hours ago
Sat, May 2 - Fri, May 8
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$275 Roundtrip, found 1 day ago
$275
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, May 2 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Fri, May 8, priced at $275 found 1 day ago
Tue, May 5 - Fri, May 8
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$279 Roundtrip, found 17 hours ago
$279
Roundtrip
found 17 hours ago
Select Alaska Airlines flight, departing Tue, May 5 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Fri, May 8, priced at $279 found 17 hours ago
Tue, Apr 28 - Fri, May 8
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$280 Roundtrip, found 2 days ago
$280
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Apr 28 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Fri, May 8, priced at $280 found 2 days ago
Wed, May 6 - Fri, May 8
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$285 Roundtrip, found 1 day ago
$285
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Wed, May 6 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Fri, May 8, priced at $285 found 1 day ago
Mon, Aug 31 - Wed, Sep 9
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$295 Roundtrip, found 1 day ago
$295
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Mon, Aug 31 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Wed, Sep 9, priced at $295 found 1 day ago
Tue, May 5 - Fri, May 8
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$299 Roundtrip, found 17 hours ago
$299
Roundtrip
found 17 hours ago
Select Alaska Airlines flight, departing Tue, May 5 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Fri, May 8, priced at $299 found 17 hours ago
Wed, May 6 - Sat, May 23
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$300 Roundtrip, found 1 hour ago
$300
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Wed, May 6 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Sat, May 23, priced at $300 found 1 hour ago
Tue, Jun 2 - Fri, Jun 5
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$305 Roundtrip, found 7 hours ago
$305
Roundtrip
found 7 hours ago
Select Alaska Airlines flight, departing Tue, Jun 2 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Fri, Jun 5, priced at $305 found 7 hours ago
Tue, Jun 2 - Fri, Jun 5
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$311 Roundtrip, found 7 hours ago
$311
Roundtrip
found 7 hours ago
Select Alaska Airlines flight, departing Tue, Jun 2 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Fri, Jun 5, priced at $311 found 7 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.