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

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Alaska Airlines Flight 1 Route Deals From $140

The cheapest prices found with in the last 7 days for return flights were $257 and $140 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Aug 30 - Wed, Sep 3
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$257 Roundtrip, found 2 hours ago
$257
Roundtrip
found 2 hours ago
Select Alaska Airlines flight, departing Sat, Aug 30 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Wed, Sep 3, priced at $257 found 2 hours ago
Tue, Sep 2 - Wed, Sep 10
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$261 Roundtrip, found 1 hour ago
$261
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Tue, Sep 2 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Wed, Sep 10, priced at $261 found 1 hour ago
Sat, Aug 30 - Thu, Sep 4
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$277 Roundtrip, found 1 hour ago
$277
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Sat, Aug 30 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Thu, Sep 4, priced at $277 found 1 hour ago
Sat, Oct 4 - Wed, Oct 15
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$278 Roundtrip, found 4 days ago
$278
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, Oct 4 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Wed, Oct 15, priced at $278 found 4 days ago
Thu, Oct 30 - Wed, Nov 5
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$281 Roundtrip, found 9 hours ago
$281
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Thu, Oct 30 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Wed, Nov 5, priced at $281 found 9 hours 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.