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Washington To Seattle Flights

  • One-Way
  • Round-Trip
  • Multi-City

From

Indira Gandhi International Airport

To

Chhatrapati Shivaji International Airport

DEPARTURE DATE

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Friday

Return Date

Book a round trip
to save more

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TRAVELLER & CLASS

1 Traveller(s)

Economy

August
September
October
November
December
January
February
March
April

May is by far the best month, wherein you can get cheapest flights for Washington to Seattle. Meanwhile, is perceived as the expensive month due to the varying factors. That’s why it’s highly advised to make advanced online flight booking to save huge amounts of money.

disclDisclaimer - All the above-mentioned fares were found within last 48 hrs. The displayed fares are based on historical data and are subject to change. The fares cannot be guaranteed at the time of booking.

Best Flight From Washington To Seattle

Cheapest
Delta Airlines
Delta Airlines

IAD

07:30

Washington

Washington Dulles International Airport

Fri , 01 Aug 2025

05h 47m
ellipse
Non Stop

SEA

10:17

Seattle

Seattle Tacoma International Airport

Fri, 01 Aug 2025

£231
Alaska Airlines
Alaska Airlines

IAD

17:25

Washington

Washington Dulles International Airport

Fri , 01 Aug 2025

09h 19m
ellipse
1 Stop

SEA

23:44

Seattle

Seattle Tacoma International Airport

Fri, 01 Aug 2025

£275
Alaska Airlines
Alaska Airlines

IAD

18:13

Washington

Washington Dulles International Airport

Fri , 01 Aug 2025

05h 47m
ellipse
Non Stop

SEA

21:00

Seattle

Seattle Tacoma International Airport

Fri, 01 Aug 2025

£313
Hawaiian Airlines
Hawaiian Airlines

IAD

18:13

Washington

Washington Dulles International Airport

Fri , 01 Aug 2025

05h 47m
ellipse
Non Stop

SEA

21:00

Seattle

Seattle Tacoma International Airport

Fri, 01 Aug 2025

£313
United Airlines
United Airlines

IAD

17:55

Washington

Washington Dulles International Airport

Fri , 01 Aug 2025

05h 53m
ellipse
Non Stop

SEA

20:48

Seattle

Seattle Tacoma International Airport

Fri, 01 Aug 2025

£343
American Airlines
American Airlines

IAD

18:13

Washington

Washington Dulles International Airport

Fri , 01 Aug 2025

05h 47m
ellipse
Non Stop

SEA

21:00

Seattle

Seattle Tacoma International Airport

Fri, 01 Aug 2025

£396
United Airlines
United Airlines

IAD

13:05

Washington

Washington Dulles International Airport

Fri , 01 Aug 2025

05h 48m
ellipse
Non Stop

SEA

15:53

Seattle

Seattle Tacoma International Airport

Fri, 01 Aug 2025

£516
Delta Airlines
Delta Airlines

IAD

07:00

Washington

Washington Dulles International Airport

Tue , 25 Nov 2025

06h 05m
ellipse
Non Stop

SEA

10:05

Seattle

Seattle Tacoma International Airport

Tue, 25 Nov 2025

£126
Sun Country Airlines
Sun Country Airlines

IAD

12:44

Washington

Washington Dulles International Airport

Tue , 25 Nov 2025

07h 25m
ellipse
1 Stop

SEA

17:09

Seattle

Seattle Tacoma International Airport

Tue, 25 Nov 2025

£134
Hawaiian Airlines
Hawaiian Airlines

IAD

07:00

Washington

Washington Dulles International Airport

Tue , 25 Nov 2025

05h 45m
ellipse
Non Stop

SEA

09:45

Seattle

Seattle Tacoma International Airport

Tue, 25 Nov 2025

£134
United Airlines
United Airlines

IAD

17:35

Washington

Washington Dulles International Airport

Tue , 25 Nov 2025

05h 35m
ellipse
Non Stop

SEA

20:10

Seattle

Seattle Tacoma International Airport

Tue, 25 Nov 2025

£164
ellipse

Early Morning Flight Washington to Seattle

wallet
Cheapest Flight
Found
£231
group
Average Flight
Time
05h 47m
calendra
Date/Time
01 Aug 2025
07:30 AM
plane
Airlines
Delta Airlines
Ellipse

Late Night Flight Washington to Seattle

wallet
Cheapest Flight
Found
£228
group
Average Flight
Time
08h 30m
calendar
Date/Time
01 Aug 2025
18:25 PM
plane
Airlines
Delta Airlines

Flights from Washington to Seattle with Easemytrip

Flying from Washington to Seattle has never been easier. Whether you’re planning a short business trip, a weekend getaway, or reconnecting with family and friends, Easemytrip brings you the best deals, seamless booking, and flexible options for this popular flight route. Our platform is built to help travellers like you compare flight prices, explore direct and connecting options, and find the perfect departure time — all within a few clicks.

The air route between Washington to Seattle is one of the most frequently travelled, offering reliable services from top airlines and excellent connectivity between Washington Dulles International Airport (IAD) and Seattle Tacoma International Airport (SEA). You can expect a flight distance of approximately 3701 km, and most direct services cover it in around 03:25.

Let’s take a closer look at everything you need to know before booking your flight from Washington to Seattle.

Travel Overview: Washington to Seattle

Flight Details Information
Route Distance 3701 km
Average Flight Time 03:25 hrs
Departure Airport Washington Dulles International Airport (IAD)
Arrival Airport Seattle Tacoma International Airport (SEA)
Cabin Classes Available Economy Class, Premium Economy, Business Class, First Class
Direct Flights YES
Common Airlines Delta Airlines, Alaska Airlines, Hawaiian Airlines, United Airlines

The route is serviced regularly by both full-service and budget airlines, catering to all types of travellers — from those looking for no-frills budget options to those preferring business and first-class comfort. If you're flying for business, early morning weekday flights are a great choice, while leisure travellers often opt for weekend and evening departures.

Read more

FAQs about flights from Washington to Seattle

Are there direct flights from Washington to Seattle?

How early should I book?

Which airlines offer the most frequent service?

Is it cheaper to fly round-trip or one-way?

Can I mix airlines for departure and return?

Is it possible to change or cancel my booking after confirmation?

Can I book additional baggage or in-flight services in advance?