₹11,019 Cheap Flights from Washington (WAS) to Seattle (SEA)

View ₹11,019 flight on Sat, 27 Sep 2025Opens in a new window

Popular airlines from Washington to Seattle, WA (SEA-Seattle - Tacoma Intl.)

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Cheap Flights from Washington (WAS) to Seattle (SEA)

Prices were available within the past 7 days and start at ₹11,019 for one-way flights and ₹23,737 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 23 Aug - Sat, 30 Aug
IAD
Washington
SEA
Seattle
₹23,737 Return, found 5 days ago
₹23,737
Return
found 5 days ago
Select Delta flight, departing Sat, 23 Aug from Washington to Seattle, returning Sat, 30 Aug, priced at ₹23,737 found 5 days ago
Delta
Sat, 23 Aug - Sat, 6 Sep
IAD
Washington
SEA
Seattle
₹23,805 Return, found 18 hours ago
₹23,805
Return
found 18 hours ago
Select Delta flight, departing Sat, 23 Aug from Washington to Seattle, returning Sat, 6 Sep, priced at ₹23,805 found 18 hours ago
Delta
Mon, 11 Aug - Tue, 26 Aug
IAD
Washington
SEA
Seattle
₹24,665 Return, found 18 hours ago
₹24,665
Return
found 18 hours ago
Select Delta flight, departing Mon, 11 Aug from Washington to Seattle, returning Tue, 26 Aug, priced at ₹24,665 found 18 hours ago
Spirit Airlines
Mon, 28 Jul - Tue, 5 Aug
BWI
Baltimore
SEA
Seattle
₹24,923 Return, found 3 days ago
₹24,923
Return
found 3 days ago
Select Spirit Airlines flight, departing Mon, 28 Jul from Baltimore to Seattle, returning Tue, 5 Aug, priced at ₹24,923 found 3 days ago
Delta
Thu, 14 Aug - Wed, 20 Aug
IAD
Washington
SEA
Seattle
₹25,022 Return, found 4 days ago
₹25,022
Return
found 4 days ago
Select Delta flight, departing Thu, 14 Aug from Washington to Seattle, returning Wed, 20 Aug, priced at ₹25,022 found 4 days ago
Delta
Fri, 12 Sep - Mon, 15 Sep
BWI
Baltimore
SEA
Seattle
₹25,401 Return, found 6 days ago
₹25,401
Return
found 6 days ago
Select Delta flight, departing Fri, 12 Sep from Baltimore to Seattle, returning Mon, 15 Sep, priced at ₹25,401 found 6 days ago
Delta
Sat, 23 Aug - Sat, 30 Aug
BWI
Baltimore
SEA
Seattle
₹25,473 Return, found 2 days ago
₹25,473
Return
found 2 days ago
Select Delta flight, departing Sat, 23 Aug from Baltimore to Seattle, returning Sat, 30 Aug, priced at ₹25,473 found 2 days ago
American Airlines
Fri, 12 Sep - Mon, 15 Sep
BWI
Baltimore
SEA
Seattle
₹25,832 Return, found 6 days ago
₹25,832
Return
found 6 days ago
Select American Airlines flight, departing Fri, 12 Sep from Baltimore to Seattle, returning Mon, 15 Sep, priced at ₹25,832 found 6 days ago
Frontier Airlines
Sat, 26 Jul - Mon, 4 Aug
BWI
Baltimore
SEA
Seattle
₹28,626 Return, found 3 days ago
₹28,626
Return
found 3 days ago
Select Frontier Airlines flight, departing Sat, 26 Jul from Baltimore to Seattle, returning Mon, 4 Aug, priced at ₹28,626 found 3 days ago
United
Sat, 16 Aug - Wed, 3 Sep
IAD
Washington
SEA
Seattle
₹32,394 Return, found 18 hours ago
₹32,394
Return
found 18 hours ago
Select United flight, departing Sat, 16 Aug from Washington to Seattle, returning Wed, 3 Sep, priced at ₹32,394 found 18 hours ago

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

September is typically the cheapest month to fly

From ₹11,838 - ₹21,657 per traveller.

Graph displaying average flight prices per month

Flight from Washington to Seattle route information
Origin airport
Washington Dulles Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
American Airlines, Delta, United
Return price
₹23,737
Distance
3679 km

Frequently asked questions

How much is a flight from Washington, DC (WAS-All Airports) to Seattle - Tacoma Intl. Airport (SEA)?
Start packing your bags, because round-trip journeys from Washington, DC (WAS-All Airports) to SEA start from ₹23,737. That's based on airfares available within the last 7 days on Expedia for flights departing within the next year. Prices can move quickly, so book now to lock in the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Washington, DC (WAS-All Airports) to SEA?
When it comes to cancellation fees, each airline has different terms and conditions. If you decide to cancel your getaway, visit our Customer Service Portal.
How do I find cheap flights from Washington, DC (WAS-All Airports) to SEA 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 Washington, DC (WAS-All Airports) to SEA flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Washington, DC (WAS-All Airports) to SEA?
The flying distance between Washington, DC (WAS-All Airports) (WAS) and Sea-Tac Airport (SEA) is 3,700 kilometres. Listen to your favourite tunes or read a good book and the journey will fly by.
Which airlines fly direct from Washington, DC (WAS-All Airports) to Sea-Tac Airport?
Alaska Airlines (AS) is the number one choice for many travellers. It offers 117 flights between Washington, DC (WAS-All Airports) and Sea-Tac Airport each month. You could also check out the fares available with United Airlines (UA). It operates 60 flights every month between Maryland and SeaTac.
Are Washington, DC (WAS-All Airports) to Seattle - Tacoma Intl. Airport (SEA) flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Washington, DC (WAS-All Airports) to Sea-Tac Airport at the last minute could be your ticket to a cheap deal. However, you might miss out on a flight altogether! If you'd rather play it safe, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to 12 months in advance. If your preferred air carrier hasn't released tickets yet, check back frequently as deals are updated all the time on Expedia.

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