Alaska Airlines Flight 1 Deals & Information (2025/2026)

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Alaska Airlines Flight 1 Route Deals From $109

The cheapest prices found with in the last 7 days for return flights were $163 and $109 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Jan 24 - Tue, Jan 27
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$163 Roundtrip, found 6 days ago
$163
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Sat, Jan 24 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Tue, Jan 27, priced at $163 found 6 days ago
Sat, Jan 24 - Tue, Jan 27
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$181 Roundtrip, found 6 days ago
$181
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Sat, Jan 24 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Tue, Jan 27, priced at $181 found 6 days ago
Sat, Jan 24 - Tue, Jan 27
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$183 Roundtrip, found 6 days ago
$183
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Sat, Jan 24 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Tue, Jan 27, priced at $183 found 6 days ago
Thu, Jan 22 - Wed, Jan 28
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$199 Roundtrip, found 7 hours ago
$199
Roundtrip
found 7 hours ago
Select Alaska Airlines flight, departing Thu, Jan 22 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Wed, Jan 28, priced at $199 found 7 hours ago
Sat, Jan 31 - Sat, Feb 7
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$201 Roundtrip, found 14 hours ago
$201
Roundtrip
found 14 hours ago
Select Alaska Airlines flight, departing Sat, Jan 31 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Sat, Feb 7, priced at $201 found 14 hours ago
Fri, Jan 23 - Sun, Jan 25
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$203 Roundtrip, found 6 days ago
$203
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Fri, Jan 23 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Sun, Jan 25, priced at $203 found 6 days ago
Wed, Feb 11 - Sat, Feb 21
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$204 Roundtrip, found 5 hours ago
$204
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Wed, Feb 11 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Sat, Feb 21, priced at $204 found 5 hours ago
Wed, Jan 14 - Wed, Jan 21
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$207 Roundtrip, found 6 days ago
$207
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Wed, Jan 14 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Wed, Jan 21, priced at $207 found 6 days ago
Thu, Jan 22 - Wed, Jan 28
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$209 Roundtrip, found 6 days ago
$209
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Thu, Jan 22 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Wed, Jan 28, priced at $209 found 6 days ago
Sat, Jan 24 - Tue, Jan 27
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$211 Roundtrip, found 6 days ago
$211
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Sat, Jan 24 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Tue, Jan 27, priced at $211 found 6 days ago

Frequently asked questions

What route does flight number AS1 take?
AS1 operates from DCA to SEA and is a direct flight. This service generally takes 5 hours and 46 minutes.
How often is AS1 on time?
Alaska Airlines flight number AS1 from DCA to Seattle, WA Airport (SEA-Seattle - Tacoma Intl.) departs according to schedule 86% of the time — so you can rest easy knowing you will arrive at your destination ASAP. If your trip is delayed, the average wait time is 13 minutes. This route has a 4.05-star rating.
What terminal does AS1 fly out of?
You'll likely be stepping aboard the plane at Terminal B if you're booked on flight AS1 direct from Ronald Reagan Washington National Airport (DCA) to Seattle, WA Airport (SEA-Seattle - Tacoma Intl.).
What kind of plane is on flight number AS1?
Get set to cruise aboard an Airbus A321 if you're booked on flight AS1. Nearly all services from National Airport to Seattle - Tacoma Intl. Airport (SEA) are operated using this type of plane.
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 AS1 flight with Travelocity, please visit our Customer Service Portal.