Cheap flights from Seattle to Washington, D.C. from $69
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Washington, D.C. departing on 1/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Deals available from 900+ travel sites.
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Seattle to Washington, D.C.
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Cheap bus & train deals from Seattle to Washington, D.C.
All round-trip flight deals to Washington, D.C.
Alaska Airlines flights from Seattle to Washington, D.C.
Our best Alaska Airlines deals on Seattle to Washington, D.C. flight tickets
United Airlines flights from Seattle to Washington, D.C.
Our best United Airlines deals on Seattle to Washington, D.C. flight tickets
See travel insights to Washington, D.C. from
How to get the cheapest flight ticket from Seattle to Washington, D.C.
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
What is the cheapest month to fly to Washington, D.C.?
The month of February is, on average, the cheapest month to fly to Washington, D.C. from Seattle, with most prices found around $321. If you’re not able to fly to Washington, D.C. in February, then September is your next best option. Flight prices from Seattle to Washington, D.C. during September average around $322.
What is the cheapest day to depart on your flight to Washington, D.C.?
On average, the least expensive day to fly to Washington, D.C. from Seattle is on a Thursday. momondo users have found tickets for Thursday departures for as low as $377. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Washington, D.C. for around $456.
What is the cheapest time of day to depart on your flight to Washington, D.C.?
In the evening is the cheapest time of day to fly from Seattle to Washington, D.C. when you can find flight prices for as low as $377. Flying to Washington, D.C. in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $450. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest Seattle/Tacoma Intl to Washington, D.C. flight route?
Fly from Seattle/Tacoma Intl to Washington, D.C. Dulles Intl for the best Seattle/Tacoma Intl - Washington, D.C. flight prices
How far in advance should I book a flight to Washington, D.C.?
The ideal time to book your flight to Washington, D.C. is 57 days in advance when prices tend to average $404. Don’t hesitate to check prices now though because momondo users recently found tickets for as low as $288.
What cabin class options are available on Seattle/Tacoma Intl to Washington, D.C. flights?
There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Washington, D.C. flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on Seattle to Washington, D.C. flights?
You could potentially save up to 46% on your flight if you consider stops on a Seattle to Washington, D.C. flight.
How have Seattle to Washington, D.C. flight prices changed over time?
As of November 2024, prices for Seattle to Washington, D.C. flights are approximately 3% more expensive when compared to flights at the same time last year.
How many flights depart from Seattle to Washington, D.C. on average per day?
27 flights are operational weekly from Seattle to Washington, D.C. as of November 2024. The most popular departure time for this route is 9:00AM, with 51% of flights per day taking off at noon.
How many flights depart from Seattle to Washington, D.C. on average per week?
As of November 2024, 191 flights take off from Seattle and land in Washington, D.C. each week. The most common flight departure day for this route is Mon, with 18% of weekly flights taking off on this day.
When to book flights from Seattle to Washington, D.C.
Cheap Seattle to Washington, D.C. (SEA to WAS) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Washington, D.C.
Best Price Found | $69 |
|---|---|
Fastest flight time | 4h 49m |
Direct flights | Every day |
Airports in Washington, D.C. | 3 airports |
How far is Seattle/Tacoma Intl to Washington, D.C. by plane?
There are 2320.5 mi between Seattle/Tacoma Intl and Washington, D.C.. 4h 49m is a normal flight duration for this route.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Washington, D.C.?
Prices for flights from Seattle/Tacoma Intl Airport to Washington, D.C. are updated daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Washington, D.C.?
As of November 2024, there are 8 operators available to choose from for flights from Seattle/Tacoma Intl Airport to Washington, D.C..
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Washington, D.C.?
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 Seattle/Tacoma Intl Airport to Washington, D.C..
What documentation or ID do you need to fly to Washington, D.C.?
The travel and health documents you'll need for your trip to Washington, D.C. may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C.. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Seattle to Washington, D.C.?
Based on momondo bookings for flights between Seattle and Washington, D.C., the leading plane model is Boeing 737-800 Passenger/BBJ2 (winglets), making up 21.30% of the total bookings. Other popular models include Boeing 737 MAX 9 with 19.17%, Boeing 737-900 with 16.69%, and Boeing 737-800 with 10.97%.
What is the most popular airline from Seattle to Washington, D.C.?
momondo data reveals that the most frequently booked airline on the route from Seattle to Washington, D.C. is Alaska Airlines, representing 47.12% of all bookings. The subsequent popular airlines are United Airlines at 23.01%, Delta at 21.92%, and Frontier at 3.37%.
Best airlines flying from Seattle to Washington, D.C.
Compare and see reviews for airlines that fly from Seattle to Washington, D.C. with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $86 | Free Cancellation | Rating 6.1 3,523 reviews | |||
| PriceFrom $145 | Free Cancellation | Rating 8.0 8,730 reviews | |||
| PriceFrom $169 | Free Cancellation | Rating 7.0 413 reviews | |||
| PriceFrom $171 | Free Cancellation | Rating 6.3 8,172 reviews | |||
| PriceFrom $212 | Free Cancellation | Rating 8.0 9,481 reviews | |||
| PriceFrom $237 | Free Cancellation | Rating 7.4 9,146 reviews | |||
| PriceFrom $246 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $248 | Free Cancellation | Rating 7.4 3,362 reviews |
Delta Flights From Seattle to Washington, D.C.
Delta is one of the most popular airlines flying from Seattle to Washington, D.C., operating 10 flights/week on average for this route. A good Delta flight deal for Seattle to Washington, D.C. starts from $145 round-trip, up to an average price of $483. Our users have rated Delta at 8.0/10.
Alaska Airlines Flights From Seattle to Washington, D.C.
Alaska Airlines (8.0/10 from 9,481 reviews) operates around 18 flights from Seattle to Washington, D.C. in any given week. The average Alaska Airlines airfare for this route is around $506, with deals from around $212 rare but found on momondo. Referenced prices are for round-trip Seattle to Washington, D.C. flight searches in the last 72 hours.
Why use momondo?
Why should I use momondo to find a flight deal from Seattle to Washington, D.C.?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Seattle.
Can I find flights from Seattle to Washington, D.C. with flexible booking policies on momondo?
Flights from Seattle to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Seattle to Washington, D.C.?
Once you have performed a search for Seattle to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Seattle to Washington, D.C. right now. Can momondo alert me if prices change?
Price alerts on flights to Washington, D.C. from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.