Lowest Priced Flights to Washington, D.C. on Alaska Airlines starting at $109*
Most popular flights to Washington, D.C. on Alaska Airlines.*
Seattle (SEA)to
Washington, D.C. (DCA)Seattle (SEA)to
Washington, D.C. (DCA)Seattle (SEA)to
Washington, D.C. (DCA)Seattle (SEA)to
Washington, D.C. (DCA)Seattle (SEA)to
Washington, D.C. (DCA)Seattle (SEA)to
Washington, D.C. (IAD)Seattle (SEA)to
Washington, D.C. (IAD)Seattle (SEA)to
Washington, D.C. (IAD)Seattle (SEA)to
Washington, D.C. (IAD)Seattle (SEA)to
Washington, D.C. (IAD)San Francisco (SFO)to
Washington, D.C. (DCA)San Francisco (SFO)to
Washington, D.C. (DCA)San Francisco (SFO)to
Washington, D.C. (DCA)San Francisco (SFO)to
Washington, D.C. (DCA)San Francisco (SFO)to
Washington, D.C. (DCA)Portland (PDX)to
Washington, D.C. (DCA)Portland (PDX)to
Washington, D.C. (DCA)Portland (PDX)to
Washington, D.C. (DCA)Portland (PDX)to
Washington, D.C. (DCA)Portland (PDX)to
Washington, D.C. (DCA)*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.*
From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Seattle (SEA) | Washington, D.C. (DCA) | One-way | Saver | Depart: Feb 5, 2026 | From $109 Seen: 6 hours ago | |
| Seattle (SEA) | Washington, D.C. (DCA) | One-way | Saver | Depart: Feb 7, 2026 | From $109 Seen: 6 hours ago | |
| Seattle (SEA) | Washington, D.C. (DCA) | One-way | Saver | Depart: Feb 19, 2026 | From $109 Seen: 6 hours ago | |
| Seattle (SEA) | Washington, D.C. (DCA) | One-way | Saver | Depart: Feb 20, 2026 | From $109 Seen: 6 hours ago | |
| Seattle (SEA) | Washington, D.C. (DCA) | One-way | Saver | Depart: Feb 21, 2026 | From $109 Seen: 6 hours ago | |
| Seattle (SEA) | Washington, D.C. (DCA) | One-way | Saver | Depart: Feb 23, 2026 | From $109 Seen: 6 hours ago | |
| Seattle (SEA) | Washington, D.C. (IAD) | One-way | Saver | Depart: Feb 7, 2026 | From $120 Seen: 6 hours ago | |
| Seattle (SEA) | Washington, D.C. (IAD) | One-way | Saver | Depart: Feb 24, 2026 | From $120 Seen: 6 hours ago | |
| Seattle (SEA) | Washington, D.C. (IAD) | One-way | Saver | Depart: Feb 11, 2026 | From $120 Seen: 6 hours ago | |
| Seattle (SEA) | Washington, D.C. (IAD) | One-way | Saver | Depart: Jan 31, 2026 | From $120 Seen: 6 hours ago | |
| Seattle (SEA) | Washington, D.C. (IAD) | One-way | Saver | Depart: Feb 26, 2026 | From $120 Seen: 6 hours ago | |
| Seattle (SEA) | Washington, D.C. (IAD) | One-way | Saver | Depart: Feb 6, 2026 | From $120 Seen: 6 hours ago | |
| San Diego (SAN) | Washington, D.C. (IAD) | One-way | Saver | Depart: May 6, 2026 | From $128 Seen: 6 hours ago | |
| San Diego (SAN) | Washington, D.C. (IAD) | One-way | Saver | Depart: Apr 28, 2026 | From $128 Seen: 6 hours ago | |
| San Diego (SAN) | Washington, D.C. (IAD) | One-way | Saver | Depart: Apr 29, 2026 | From $128 Seen: 6 hours ago | |
| San Diego (SAN) | Washington, D.C. (IAD) | One-way | Saver | Depart: May 5, 2026 | From $128 Seen: 6 hours ago | |
| San Diego (SAN) | Washington, D.C. (DCA) | One-way | Saver | Depart: Feb 11, 2026 | From $128 Seen: 6 hours ago | |
| San Diego (SAN) | Washington, D.C. (DCA) | One-way | Saver | Depart: Feb 10, 2026 | From $128 Seen: 6 hours ago | |
| San Diego (SAN) | Washington, D.C. (DCA) | One-way | Saver | Depart: Jan 31, 2026 | From $128 Seen: 6 hours ago | |
| San Diego (SAN) | Washington, D.C. (DCA) | One-way | Saver | Depart: Feb 25, 2026 | From $128 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)