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

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Alaska Airlines Flight 1 Route Deals From $110

The cheapest prices found with in the last 7 days for return flights were $199 and $110 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Jan 31 - Sat, Feb 7
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$199 Roundtrip, found 14 hours ago
$199
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 $199 found 14 hours ago
Tue, Feb 10 - Sat, Feb 14
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$202 Roundtrip, found 9 hours ago
$202
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Tue, Feb 10 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Sat, Feb 14, priced at $202 found 9 hours ago
Sat, Jan 24 - Tue, Jan 27
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$204 Roundtrip, found 10 hours ago
$204
Roundtrip
found 10 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 10 hours ago
Mon, Jan 26 - Sat, Jan 31
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$204 Roundtrip, found 3 days ago
$204
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Jan 26 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Sat, Jan 31, priced at $204 found 3 days ago
Sat, Jan 24 - Tue, Jan 27
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$224 Roundtrip, found 10 hours ago
$224
Roundtrip
found 10 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 $224 found 10 hours ago
Sat, Jan 31 - Sat, Feb 7
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$224 Roundtrip, found 14 hours ago
$224
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 $224 found 14 hours ago
Sat, Feb 21 - Tue, Feb 24
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$227 Roundtrip, found 11 hours ago
$227
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Sat, Feb 21 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Tue, Feb 24, priced at $227 found 11 hours ago
Sat, Jan 31 - Sat, Feb 7
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$229 Roundtrip, found 14 hours ago
$229
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 $229 found 14 hours ago
Wed, Feb 4 - Sat, Feb 7
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$230 Roundtrip, found 6 hours ago
$230
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Wed, Feb 4 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Sat, Feb 7, priced at $230 found 6 hours ago
Tue, Feb 10 - Sat, Feb 14
DCA
Ronald Reagan Washington National
SEA
Seattle - Tacoma Intl.
$232 Roundtrip, found 9 hours ago
$232
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Tue, Feb 10 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Sat, Feb 14, priced at $232 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.