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Cheap Flights from Washington D.C. to Seattle

Compare Washington D.C. to Seattle flight deals

Find the cheapest month or even day of the year to fly to Seattle

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Flight deals from Washington D.C. to Seattle

Looking for a cheap last-minute deal or the best return flight from Washington D.C. to Seattle? Find the lowest prices on one-way and return tickets right here.
Seattle.$334 per passenger.Departing Fri, 17 May, returning Wed, 22 May.Return flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departs from Baltimore Washington International on Fri, 17 May, arriving in Seattle / Tacoma International.Inbound indirect flight with Spirit Airlines, departs from Seattle / Tacoma International on Wed, 22 May, arriving in Baltimore Washington International.Price includes taxes and charges.From $334, select.
Seattle.$381 per passenger.Departing Fri, 9 Aug, returning Tue, 13 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Fri, 9 Aug, arriving in Seattle / Tacoma International.Inbound indirect flight with Delta, departs from Seattle / Tacoma International on Tue, 13 Aug, arriving in Baltimore Washington International.Price includes taxes and charges.From $381, select.
Seattle.$382 per passenger.Departing Fri, 25 Oct, returning Mon, 28 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Fri, 25 Oct, arriving in Seattle / Tacoma International.Inbound indirect flight with Delta, departs from Seattle / Tacoma International on Mon, 28 Oct, arriving in Baltimore Washington International.Price includes taxes and charges.From $382, select.
Seattle.$382 per passenger.Departing Fri, 6 Sep, returning Mon, 9 Sep.Return flight with United.Outbound indirect flight with United, departs from Baltimore Washington International on Fri, 6 Sep, arriving in Seattle / Tacoma International.Inbound indirect flight with United, departs from Seattle / Tacoma International on Mon, 9 Sep, arriving in Baltimore Washington International.Price includes taxes and charges.From $382, select.

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Find the cheapest month to fly from Washington D.C. to Seattle

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington D.C. to Seattle flights are currently cheapest in May.
Apr
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May
from $334
Jun
from $557
Jul
from $468
Aug
from $381
Sep
from $382
Oct
from $382
Nov
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Dec
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Jan
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Feb
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Mar
from $440

Direct flights from Washington D.C. to Seattle

Alternative Washington D.C. to Seattle routes

Looking for the cheapest, fastest or easiest route from Washington D.C. to Seattle? You could fly into the following airports instead.

Washington D.C. to Seattle: Flight information

The things to know before you go.
Cheapest flight found$334
Cheapest month to flyMay
Average flight time5 hrs, 44 mins
Most popular airlineAir Tahiti Nui
Average flights per week229

Finding cheap flights from Washington D.C. to Seattle: Frequently asked questions

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Everett.
The best price we found for a return flight from Washington D.C. to Seattle is $334. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
5 hours and 44 minutes is the average flight time from Washington D.C. to Seattle.
Air Tahiti Nui, Alaska Airlines and United fly direct from Washington D.C. to Seattle.
As of April 2024, there are 229 flights per week flying from Washington D.C. to Seattle.
The cheapest month to fly from Washington D.C. to Seattle is usually May.
If you're flying from Washington D.C., the cheapest airport near Seattle is Seattle / Tacoma International – which is 19.5 km away from the centre of Seattle. We've found flights into this airport from $334.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Washington D.C. to Seattle on Friday, 17 May 2024.
Yes – the average flight time is 5 hours and 44 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.
In April, the average temperature is usually around 8°C. August is typically the warmest month in Seattle, when it usually averages around 23°C. You can expect the least rain in July. The coldest month is December, with temperatures averaging 0°C. The rainiest month is November.
The cheapest airline that flies to Seattle is Spirit Airlines. And the cheapest airline that flies to Seattle Boeing Fld Airport is United.

How to find cheap flights to Seattle from Washington D.C.

Looking for cheap tickets from Washington D.C. to Seattle? Here are a few tips on how to secure the best flight price and make your journey as smooth as possible.

  • Simply hit 'search'. From British Airways to international carriers like Emirates, we compare all major airlines along with the most popular online travel agents to find the cheapest plane tickets from Washington D.C. to Seattle. And with us there are no hidden fees - what you see is what you pay.
  • Compare flight deals to Seattle from Washington D.C. from over 1,000 providers. Then choose the cheapest or fastest plane tickets.
  • Flex your dates to find the best Washington D.C.-Seattle ticket prices. If you are flexible when it comes to your travel dates, use Skyscanner's 'Whole month' tool to find the cheapest month, and even day to fly to Seattle from Washington D.C..
  • Set up a Price Alert. You can easily track the fare of your cheap Washington D.C.-Seattle flights by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible flight deal.
  • Fly without stops. Only interested in direct flights between Washington D.C. and Seattle? Make sure to tick 'Direct flights only' when performing a search. If there are direct flights available on the route, these will appear in the results.
  • Find the cheapest Business class flights from Washington D.C. and Seattle. We scour the internet for the best Business, Premium Economy and First Class flight fares to Seattle, too. Check the difference in price as you search – you might just chance upon a last-minute low fare. Note that not all cabin classes are available for every destination or airline.
  • Include nearby airports in your search. Widen your search for Washington D.C. to Seattle flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save next time you travel.

    • Combine your flight to Seattle from Washington D.C. with hotels and car hire

    Once you've secured your cheap flight ticket from Washington D.C. to Seattle, discover the best prices and exclusive rates for hotels in Seattle or nearby. You can also compare hundreds of car hire companies in one go so that you get the best car hire price for your trip.


Plan the rest of your trip from Washington D.C. to Seattle

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.