Cheap flights from District of Columbia to Seattle from $64
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Seattle departing on 3/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights
These are some of the best round-trip flight deals from District of Columbia to Seattle that have been recently found on momondo from popular airlines, departing in the coming months.
Cheap one-way flights
Flying one-way? These are some of the best deals recently discovered on momondo for flights from District of Columbia to Seattle.
Cheap last minute flights
Planning a quick getaway from District of Columbia to Seattle? These are the last-minute flight deals available now.
Cheap direct flights
If you prefer a non-stop journey, check out our latest direct flight deals to Seattle, so you can enjoy a seamless trip without layovers.
Cheap bus & train deals from District of Columbia to Seattle
Find recent round-trip train or bus tickets from District of Columbia to Seattle.
All round-trip flight deals from District of Columbia to Seattle
The cheapest plane tickets from District of Columbia to Seattle found on KAYAK recently.
Alaska Airlines flights from District of Columbia to Seattle
Our best Alaska Airlines deals on District of Columbia to Seattle flight tickets
Alaska Airlines![Alaska Airlines]()
Mar 4![Alaska Airlines]()
Mar 4
IAD7:00 amWashington, D.C. Dulles Intl
5h 56m
SEA9:56 amSeattle/Tacoma Intl
SEA1:49 pmSeattle/Tacoma Intl
23h 29m
1 stop
IAD4:18 pmWashington, D.C. Dulles Intl
Alaska Airlines![Alaska Airlines]()
Feb 12![Alaska Airlines]()
Feb 19
IAD6:57 pmWashington, D.C. Dulles Intl
6h 03m
SEA10:00 pmSeattle/Tacoma Intl
SEA9:50 amSeattle/Tacoma Intl
4h 58m
IAD5:48 pmWashington, D.C. Dulles Intl
Southwest flights from District of Columbia to Seattle
Our best Southwest deals on District of Columbia to Seattle flight tickets
Southwest![Southwest]()
Mar 4![Southwest]()
Mar 6
DCA6:55 amWashington, D.C. Reagan-National
7h 55m
1 stop
SEA11:50 amSeattle/Tacoma Intl
SEA5:00 amSeattle/Tacoma Intl
10h 10m
2 stops
DCA6:10 pmWashington, D.C. Reagan-National
Southwest![Southwest]()
Feb 21![Southwest]()
Mar 1
DCA2:45 pmWashington, D.C. Reagan-National
12h 40m
2 stops
SEA12:25 amSeattle/Tacoma Intl
SEA6:40 amSeattle/Tacoma Intl
9h 05m
2 stops
DCA6:45 pmWashington, D.C. Reagan-National
See travel insights to Seattle from
How to get the cheapest flight ticket from District of Columbia to Seattle
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
Prices
Airlines
Other information
What is the cheapest month to fly to Seattle?
In general, February is the cheapest month to fly from District of Columbia to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $347. If you don’t want to visit Seattle in February, then you should wait until September to fly from District of Columbia, when ticket prices are also cheap, with an average price of $351.
What is the cheapest day to depart on your flight to Seattle?
On average, the least expensive day to fly to Seattle from District of Columbia is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $396. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from District of Columbia because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $476.
What is the cheapest time of day to depart on your flight to Seattle?
Flying to Seattle from District of Columbia at noon is the least expensive time of day to depart. momondo users have found prices as low as $326 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $455. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest District of Columbia to Seattle/Tacoma Intl flight route?
Fly from Washington, D.C. Dulles Intl to Seattle/Tacoma Intl for the best District of Columbia - Seattle/Tacoma Intl flight prices
How far in advance should I book a flight to Seattle?
You are more likely to see cheaper flights to Seattle from District of Columbia when booking 7 weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $431 when searching 7 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from District of Columbia for as low as $376 on momondo.
What cabin class options are available on District of Columbia to Seattle/Tacoma Intl flights?
There are 4 cabin classes available to choose from on District of Columbia to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from District of Columbia to Seattle/Tacoma Intl?
Frontier, Alaska Airlines, and JetBlue are the most popular carriers operating from District of Columbia to Seattle/Tacoma Intl
What airlines fly to Seattle?
Alaska Airlines, United Airlines and Delta are the top three most popular airlines that fly to Seattle from District of Columbia according to our data. Alaska Airlines is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 10 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.
How many flights depart from District of Columbia to Seattle on average per day?
As of January 2025, 18 flights take off from District of Columbia and land in Seattle each day. The most common flight departure time for this route is 5:00PM, with 59% of daily flights taking off in the afternoon.
How many flights depart from District of Columbia to Seattle on average per week?
131 flights are operational weekly from District of Columbia to Seattle as of January 2025. The most popular departure day for this route is Thu, with 17% of flights per week taking off on this day.
Cheap District of Columbia to Seattle flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Seattle
When did momondo last update prices for flights from District of Columbia to Seattle/Tacoma Intl Airport?
Prices for flights from District of Columbia to Seattle/Tacoma Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from District of Columbia to Seattle/Tacoma Intl Airport?
The number of operators available for flights from District of Columbia to Seattle/Tacoma Intl Airport is 9 as of January 2025.
How old do you have to be to fly from District of Columbia to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from District of Columbia to Seattle?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from District of Columbia to Seattle is Boeing 737-900 (25.91% of total bookings). The next most popular plane models are Boeing 737-800 Passenger/BBJ2 (winglets) (24.95%), Boeing 737 MAX 9 (7.91%), and Boeing 737-900 Passenger/BBJ3 (winglets) (7.82%).
Best airlines flying from District of Columbia to Seattle
Compare and see reviews for airlines that fly from District of Columbia to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $90 | Free Cancellation | Rating 6.0 3,435 reviews | |||
| PriceFrom $144 | Free Cancellation | Rating 7.0 384 reviews | |||
| PriceFrom $164 | Free Cancellation | Rating 6.3 8,098 reviews | |||
| PriceFrom $185 | Free Cancellation | Rating 8.0 8,511 reviews | |||
| PriceFrom $216 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $227 | Free Cancellation | Rating 8.0 9,681 reviews | |||
| PriceFrom $249 | Free Cancellation | Rating 7.4 3,199 reviews | |||
| PriceFrom $273 | Free Cancellation | Rating 7.4 8,965 reviews | |||
| PriceFrom $296 | Free Cancellation | Rating 8.1 4,659 reviews |
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsLeavenworth
Tacoma
SeaTac
Ocean Shores
Olympia
Kent
Renton
Tukwila
Federal Way
Lynnwood
Kirkland
Lakewood
Redmond
Puyallup
Fife
Shoreline
Centralia
Bothell
Cle Elum
Lacey
Why use momondo?
Why should I use momondo to find a flight deal from District of Columbia to Seattle?
It is quick and easy to find District of Columbia to Seattle flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seattle that suits you.
Can I find flights from District of Columbia to Seattle with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for District of Columbia to Seattle flights to just show those with flexible booking policies.
How can momondo help me find flights from District of Columbia to Seattle?
momondo provides multiple filters to help you find the best flight to Seattle from District of Columbia. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from District of Columbia to Seattle right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of District of Columbia to Seattle flights. All you need is a valid email address and we will do the rest; it is that quick and easy.
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