S$166 Cheap Flights from Seattle to Washington

View S$166 flight on Wed, 27 Aug, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Washington

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Cheap Flights from Seattle to Washington (SEA-WAS)

Prices were available within the past 7 days and start at S$166 for one-way flights and S$356 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 26 Aug - Tue, 2 Sep
SEA
Seattle
DCA
Washington
S$356 Return, found 3 days ago
S$356
Return
found 3 days ago
Select Delta flight, departing Tue, 26 Aug from Seattle to Washington, returning Tue, 2 Sep, priced at S$356 found 3 days ago
Delta
Thu, 14 Aug - Sat, 16 Aug
SEA
Seattle
DCA
Washington
S$368 Return, found 4 days ago
S$368
Return
found 4 days ago
Select Delta flight, departing Thu, 14 Aug from Seattle to Washington, returning Sat, 16 Aug, priced at S$368 found 4 days ago
Delta
Wed, 6 Aug - Tue, 12 Aug
SEA
Seattle
DCA
Washington
S$375 Return, found 1 day ago
S$375
Return
found 1 day ago
Select Delta flight, departing Wed, 6 Aug from Seattle to Washington, returning Tue, 12 Aug, priced at S$375 found 1 day ago
Delta
Wed, 6 Aug - Tue, 12 Aug
SEA
Seattle
IAD
Washington
S$375 Return, found 1 day ago
S$375
Return
found 1 day ago
Select Delta flight, departing Wed, 6 Aug from Seattle to Washington, returning Tue, 12 Aug, priced at S$375 found 1 day ago
Delta
Thu, 28 Aug - Mon, 1 Sep
SEA
Seattle
BWI
Baltimore
S$378 Return, found 5 days ago
S$378
Return
found 5 days ago
Select Delta flight, departing Thu, 28 Aug from Seattle to Baltimore, returning Mon, 1 Sep, priced at S$378 found 5 days ago
Delta
Thu, 14 Aug - Mon, 18 Aug
SEA
Seattle
BWI
Baltimore
S$381 Return, found 1 day ago
S$381
Return
found 1 day ago
Select Delta flight, departing Thu, 14 Aug from Seattle to Baltimore, returning Mon, 18 Aug, priced at S$381 found 1 day ago
American Airlines
Thu, 14 Aug - Mon, 18 Aug
SEA
Seattle
BWI
Baltimore
S$387 Return, found 1 day ago
S$387
Return
found 1 day ago
Select American Airlines flight, departing Thu, 14 Aug from Seattle to Baltimore, returning Mon, 18 Aug, priced at S$387 found 1 day ago
Delta
Thu, 14 Aug - Mon, 18 Aug
SEA
Seattle
DCA
Washington
S$394 Return, found 1 day ago
S$394
Return
found 1 day ago
Select Delta flight, departing Thu, 14 Aug from Seattle to Washington, returning Mon, 18 Aug, priced at S$394 found 1 day ago
Delta
Tue, 19 Aug - Tue, 26 Aug
SEA
Seattle
DCA
Washington
S$406 Return, found 2 days ago
S$406
Return
found 2 days ago
Select Delta flight, departing Tue, 19 Aug from Seattle to Washington, returning Tue, 26 Aug, priced at S$406 found 2 days ago
United
Thu, 28 Aug - Mon, 1 Sep
SEA
Seattle
BWI
Baltimore
S$442 Return, found 5 days ago
S$442
Return
found 5 days ago
Select United flight, departing Thu, 28 Aug from Seattle to Baltimore, returning Mon, 1 Sep, priced at S$442 found 5 days ago

Find the cheapest month to fly from Seattle (SEA) to Washington (WAS)

September is typically the cheapest month to fly

From S$177 - S$345 per traveller.

Graph displaying average flight prices per month

Seattle to Washington route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Ronald Reagan Washington National
Return price
S$356
Distance
3715 km

Perfect flights from Seattle to Washington

Your Journey from Seattle to Washington

Start your unforgettable journey with Expedia. Our broad selection of flights from Seattle to Washington caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including American Airlines, Delta, United. Our selection of flights from Seattle - Tacoma Intl. to WAS-All Airports caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Seattle to Washington Flights

Experience the joy of finding cheap flights from Seattle - Tacoma Intl. to WAS-All Airports that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$166 and roundtrip prices from S$356*.
 

Pre-Flight Essentials

Ensure a smooth journey from Seattle to Washington with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Washington

Picture yourself stepping off the plane in Washington and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Seattle to Washington Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Seattle to Washington.
 

Beyond the Flight – Exploring Washington

With Expedia, your adventure extends beyond the flight. Explore Washington at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Seattle to Washington with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Seattle to Washington with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from Sea-Tac Airport to Washington, DC (WAS-All Airports)?
Based on fares quoted within the last 7 days on Expedia for flights departing within the next year, round-trip flights between SEA and Washington, DC (WAS-All Airports) start from S$356. Make your booking today to secure the best price for your exciting adventure. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SEA to Washington, DC (WAS-All Airports)?
Every airline has its own set of terms and conditions. If you decide to cancel your holiday, head to our Customer Service Portal.
How do I find cheap flights from SEA to Washington, DC (WAS-All Airports) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Sea-Tac Airport to Washington, DC (WAS-All Airports) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Seattle - Tacoma Intl. Airport (SEA) to Washington, DC (WAS-All Airports)?
The flying distance between Sea-Tac Airport and Washington, DC (WAS-All Airports) is 3,700 kilometres. Close your eyes or make a start on the latest bestseller and the journey will whiz by.
Which airlines fly direct from SEA to Washington, DC (WAS-All Airports)?
Many adventurers choose to fly with Alaska Airlines (AS) from Sea-Tac Airport to Washington, DC (WAS-All Airports). This top airline offers 117 flights monthly, so you can pick a flight time that's perfect for you. Another carrier operating on this route is United Airlines (UA). You'll have 60 flights each month to choose from.
Are Seattle - Tacoma Intl. Airport (SEA) to Washington, DC (WAS-All Airports) flight tickets cheaper when they're purchased at the last minute?
Booking last minute from Sea-Tac Airport to Washington, DC (WAS-All Airports) can be hit-or-miss. You may be able to score a great bargain, but you could also completely miss out! If you'd rather start planning early on, Expedia compares flight deals up to 12 months in advance. Just keep in mind that not all airlines release their prices so far in advance. Our top tip? Check back often as updates are made frequently.

Explore a world of travel with Expedia

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