Lowest Priced Flights to Washington, D.C. on Alaska Airlines starting at $128*

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Most popular flights to Washington, D.C. on Alaska Airlines.*

$
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Seattle (SEA)to

Washington, D.C. (IAD)
Depart: Sep 15, 2025
From
$154
Seen: 6 hours ago
One-way
Saver

Seattle (SEA)to

Washington, D.C. (IAD)
Depart: Sep 16, 2025
From
$154
Seen: 1 hour ago
One-way
Saver

Seattle (SEA)to

Washington, D.C. (IAD)
Depart: Sep 8, 2025
From
$159
Seen: 6 hours ago
One-way
Saver

Seattle (SEA)to

Washington, D.C. (IAD)
Depart: Sep 10, 2025
From
$159
Seen: 6 hours ago
One-way
Saver

Seattle (SEA)to

Washington, D.C. (IAD)
Depart: Sep 17, 2025
From
$159
Seen: 6 hours ago
One-way
Saver

Seattle (SEA)to

Washington, D.C. (DCA)
Depart: Sep 11, 2025
From
$148
Seen: 58 minutes ago
One-way
Saver

Seattle (SEA)to

Washington, D.C. (DCA)
Depart: Sep 9, 2025
From
$148
Seen: 6 hours ago
One-way
Saver

Seattle (SEA)to

Washington, D.C. (DCA)
Depart: Sep 16, 2025
From
$148
Seen: 6 hours ago
One-way
Saver

Seattle (SEA)to

Washington, D.C. (DCA)
Depart: Sep 10, 2025
From
$148
Seen: 1 hour ago
One-way
Saver

Seattle (SEA)to

Washington, D.C. (DCA)
Depart: Sep 13, 2025
From
$148
Seen: 1 hour ago
One-way
Saver

San Francisco (SFO)to

Washington, D.C. (DCA)
Depart: Sep 16, 2025
From
$148
Seen: 6 hours ago
One-way
Saver

San Francisco (SFO)to

Washington, D.C. (DCA)
Depart: Sep 9, 2025
From
$148
Seen: 10 minutes ago
One-way
Saver

San Francisco (SFO)to

Washington, D.C. (DCA)
Depart: Sep 10, 2025
From
$148
Seen: 6 hours ago
One-way
Saver

San Francisco (SFO)to

Washington, D.C. (DCA)
Depart: Sep 17, 2025
From
$154
Seen: 6 hours ago
One-way
Saver

San Francisco (SFO)to

Washington, D.C. (DCA)
Depart: Sep 13, 2025
From
$154
Seen: 6 hours ago
One-way
Saver

Los Angeles (LAX)to

Washington, D.C. (DCA)
Depart: Sep 8, 2025
From
$154
Seen: 6 hours ago
One-way
Saver

Los Angeles (LAX)to

Washington, D.C. (DCA)
Depart: Sep 11, 2025
From
$159
Seen: 6 hours ago
One-way
Saver

Los Angeles (LAX)to

Washington, D.C. (DCA)
Depart: Sep 13, 2025
From
$159
Seen: 6 hours ago
One-way
Saver

Los Angeles (LAX)to

Washington, D.C. (DCA)
Depart: Sep 16, 2025
From
$159
Seen: 6 hours ago
One-way
Saver

Los Angeles (LAX)to

Washington, D.C. (DCA)
Depart: Sep 9, 2025
From
$159
Seen: 6 hours ago
One-way
Saver

*Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

Top offers for Washington, D.C. one-way flights.*

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Top offers for Washington, D.C. one-way flights.*
From
To
Fare Type
Dates
Price
San Diego (SAN)Washington, D.C. (DCA)One-way
|
Saver
Depart: Sep 30, 2025

From

$128

Seen: 6 hours ago

San Diego (SAN)Washington, D.C. (DCA)One-way
|
Saver
Depart: Nov 18, 2025

From

$128

Seen: 6 hours ago

San Diego (SAN)Washington, D.C. (DCA)One-way
|
Saver
Depart: Dec 13, 2025

From

$128

Seen: 6 hours ago

San Diego (SAN)Washington, D.C. (DCA)One-way
|
Saver
Depart: Dec 17, 2025

From

$128

Seen: 6 hours ago

San Diego (SAN)Washington, D.C. (DCA)One-way
|
Saver
Depart: Sep 24, 2025

From

$128

Seen: 6 hours ago

San Diego (SAN)Washington, D.C. (DCA)One-way
|
Saver
Depart: Dec 6, 2025

From

$128

Seen: 6 hours ago

San Diego (SAN)Washington, D.C. (IAD)One-way
|
Saver
Depart: Sep 30, 2025

From

$128

Seen: 6 hours ago

San Diego (SAN)Washington, D.C. (IAD)One-way
|
Saver
Depart: Oct 15, 2025

From

$128

Seen: 6 hours ago

San Diego (SAN)Washington, D.C. (IAD)One-way
|
Saver
Depart: Nov 18, 2025

From

$128

Seen: 6 hours ago

San Diego (SAN)Washington, D.C. (IAD)One-way
|
Saver
Depart: Oct 7, 2025

From

$128

Seen: 6 hours ago

San Diego (SAN)Washington, D.C. (IAD)One-way
|
Saver
Depart: Oct 22, 2025

From

$128

Seen: 6 hours ago

San Diego (SAN)Washington, D.C. (IAD)One-way
|
Saver
Depart: Nov 4, 2025

From

$128

Seen: 6 hours ago

Los Angeles (LAX)Washington, D.C. (DCA)One-way
|
Saver
Depart: Dec 24, 2025

From

$129

Seen: 6 hours ago

Los Angeles (LAX)Washington, D.C. (DCA)One-way
|
Saver
Depart: Oct 31, 2025

From

$129

Seen: 6 hours ago

Spokane (GEG)Washington, D.C. (DCA)One-way
|
Saver
Depart: Oct 28, 2025

From

$129

Seen: 6 hours ago

Spokane (GEG)Washington, D.C. (DCA)One-way
|
Saver
Depart: Nov 18, 2025

From

$129

Seen: 6 hours ago

Spokane (GEG)Washington, D.C. (DCA)One-way
|
Saver
Depart: Dec 17, 2025

From

$129

Seen: 6 hours ago

Spokane (GEG)Washington, D.C. (DCA)One-way
|
Saver
Depart: Jan 21, 2026

From

$129

Seen: 6 hours ago

Spokane (GEG)Washington, D.C. (DCA)One-way
|
Saver
Depart: Jan 28, 2026

From

$129

Seen: 6 hours ago

Spokane (GEG)Washington, D.C. (DCA)One-way
|
Saver
Depart: Feb 4, 2026

From

$129

Seen: 6 hours ago

*Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

Plan a trip to Washington, D.C.

The idea to build a national capital along the Potomac River was approved by the new American government in 1790; Congress held its first session in Washington, DC, 10 years later. America's traditional political hub now buzzes with international shops and street festivals. Walk, run, or cycle by the Reflecting Pool to the Lincoln Memorial and Washington Monument. Get an eyewitness view of the history of journalism at the Newseum, and test your spy skills at the International Spy Museum. Outdoor fountains and glass-domed rooms of rainforests, flowers, and deserts await you at the United States Botanical Garden. Wander along the Chesapeake and Ohio Canal, and through the beautiful historic Georgetown neighborhood.

View airport information for Washington - Reagan (DCA) and Washington - Dulles (IAD)