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

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Alaska Airlines Flight 3 Route Deals From $109

The cheapest prices found with in the last 7 days for return flights were $199 and $109 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jan 22 - Tue, Jan 27
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$199 Roundtrip, found 5 hours ago
$199
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Thu, Jan 22 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Tue, Jan 27, priced at $199 found 5 hours ago
Wed, Jan 14 - Sat, Jan 17
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$201 Roundtrip, found 5 days ago
$201
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Jan 14 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Sat, Jan 17, priced at $201 found 5 days ago
Wed, Jan 28 - Tue, Feb 3
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$202 Roundtrip, found 16 hours ago
$202
Roundtrip
found 16 hours ago
Select Alaska Airlines flight, departing Wed, Jan 28 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Tue, Feb 3, priced at $202 found 16 hours ago
Wed, Jan 14 - Sat, Jan 17
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$203 Roundtrip, found 5 days ago
$203
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Jan 14 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Sat, Jan 17, priced at $203 found 5 days ago
Sat, Jan 24 - Tue, Jan 27
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$204 Roundtrip, found 23 hours ago
$204
Roundtrip
found 23 hours ago
Select Alaska Airlines flight, departing Sat, Jan 24 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Tue, Jan 27, priced at $204 found 23 hours ago
Wed, Feb 11 - Thu, Feb 19
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$218 Roundtrip, just found
$218
Roundtrip
just found
Select Alaska Airlines flight, departing Wed, Feb 11 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Thu, Feb 19, priced at $218 just found
Wed, Jan 14 - Sat, Jan 17
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$221 Roundtrip, found 5 days ago
$221
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Jan 14 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Sat, Jan 17, priced at $221 found 5 days ago
Wed, Jan 7 - Wed, Jan 14
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$221 Roundtrip, found 3 days ago
$221
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, Jan 7 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Wed, Jan 14, priced at $221 found 3 days ago
Wed, Jan 14 - Sat, Jan 17
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$222 Roundtrip, found 5 days ago
$222
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Jan 14 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Sat, Jan 17, priced at $222 found 5 days ago
Thu, Jan 22 - Mon, Jan 26
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$224 Roundtrip, found 2 hours ago
$224
Roundtrip
found 2 hours ago
Select Alaska Airlines flight, departing Thu, Jan 22 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Mon, Jan 26, priced at $224 found 2 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.