Alaska Airlines Flight 1 Deals & Information (2026/2027)

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Alaska Airlines Flight 1 Route Deals From $120

The cheapest prices found with in the last 7 days for return flights were $199 and $120 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Feb 15 - Tue, Feb 24
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$199 Roundtrip, found 8 hours ago
$199
Roundtrip
found 8 hours ago
Select Alaska Airlines flight, departing Sun, Feb 15 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Tue, Feb 24, priced at $199 found 8 hours ago
Wed, Feb 18 - Tue, Feb 24
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$202 Roundtrip, found 6 days ago
$202
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Wed, Feb 18 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Tue, Feb 24, priced at $202 found 6 days ago
Wed, Feb 18 - Tue, Feb 24
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$202 Roundtrip, found 1 day ago
$202
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Wed, Feb 18 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Tue, Feb 24, priced at $202 found 1 day ago
Tue, Feb 24 - Wed, Mar 4
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$206 Roundtrip, found 21 hours ago
$206
Roundtrip
found 21 hours ago
Select Alaska Airlines flight, departing Tue, Feb 24 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Wed, Mar 4, priced at $206 found 21 hours ago
Wed, Feb 18 - Wed, Feb 25
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$209 Roundtrip, found 11 hours ago
$209
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Wed, Feb 18 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Wed, Feb 25, priced at $209 found 11 hours ago
Thu, Feb 19 - Tue, Feb 24
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$212 Roundtrip, found 6 hours ago
$212
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Thu, Feb 19 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Tue, Feb 24, priced at $212 found 6 hours ago
Tue, Feb 17 - Wed, Feb 25
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$216 Roundtrip, found 11 hours ago
$216
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Tue, Feb 17 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Wed, Feb 25, priced at $216 found 11 hours ago
Wed, Feb 25 - Sat, Feb 28
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$221 Roundtrip, found 6 days ago
$221
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Wed, Feb 25 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Sat, Feb 28, priced at $221 found 6 days ago
Sat, Feb 14 - Wed, Feb 25
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$224 Roundtrip, found 3 days ago
$224
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Feb 14 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Wed, Feb 25, priced at $224 found 3 days ago
Tue, Feb 17 - Wed, Feb 25
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$226 Roundtrip, found 11 hours ago
$226
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Tue, Feb 17 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Wed, Feb 25, priced at $226 found 11 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.