Cheap flights from Seattle to District of Columbia from $100
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 District of Columbia departing on 7/10. 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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Sun Country Air flights from Seattle to District of Columbia
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How to get the cheapest flight ticket from Seattle to District of Columbia
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 District of Columbia?
In general, September is the cheapest month to fly from Seattle to District of Columbia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $327. If you don’t want to visit District of Columbia in September, then you should wait until March to fly from Seattle, when ticket prices are also cheap, with an average price of $357.
What is the cheapest day to depart on your flight to District of Columbia?
The cheapest day to depart on your flight to District of Columbia is on a Thursday when prices can be found for as low as $450. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $576.
What is the cheapest time of day to depart on your flight to District of Columbia?
Flying to District of Columbia from Seattle in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $370 when looking at flights departing in the afternoon. Flights to District of Columbia are more costly at noon, with an average ticket price of $529. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest Seattle/Tacoma Intl to District of Columbia flight route?
Fly from Seattle/Tacoma Intl to Baltimore/Washington for the best Seattle/Tacoma Intl - District of Columbia flight prices
How far in advance should I book a flight to District of Columbia?
You are more likely to see cheaper flights to District of Columbia from Seattle when booking 6 weeks ahead of your departure date. In general, you can expect to find flights to District of Columbia for around $400 when searching 6 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to District of Columbia from Seattle for as low as $317 on momondo.
What cabin class options are available on Seattle/Tacoma Intl to District of Columbia flights?
There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to District of Columbia 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 Seattle/Tacoma Intl to District of Columbia?
Frontier, Alaska Airlines, and Delta are the most popular carriers operating from Seattle/Tacoma Intl to District of Columbia
What airlines fly to District of Columbia?
Alaska Airlines, Delta and United Airlines are the top three most popular airlines that fly to District of Columbia from Seattle according to our data. Alaska Airlines is the first choice among our users, with 50% of people opting to fly with this airline when traveling to District of Columbia. Keep in mind that there are 9 different airlines that fly to District of Columbia on a routine basis, so you have a few additional options to choose from.
How many flights depart from Seattle to District of Columbia on average per day?
40 flights are operational daily from Seattle to District of Columbia as of June 2025. The most popular departure time for this route is 11:00PM, with 37% of flights per day taking off in the evening.
How many flights depart from Seattle to District of Columbia on average per week?
The number of flights available between Seattle and District of Columbia is 280 per week as of June 2025. The most frequent departure day is Thu, with 16% of weekly flights leaving on this day.
Cheap Seattle to District of Columbia flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to District of Columbia
Best Price Found | $100 |
|---|---|
Fastest flight time | 4h 54m |
Direct flights | Every day |
Airports in District of Columbia | 2 airports |
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to District of Columbia?
Prices for flights from Seattle/Tacoma Intl Airport to District of Columbia refresh daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to District of Columbia?
There are 8 operators available for flights from Seattle/Tacoma Intl Airport to District of Columbia as of June 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to District of Columbia?
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 District of Columbia.
What documentation or ID do you need to fly to District of Columbia?
The necessary travel and health documents for your District of Columbia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Seattle to District of Columbia?
Based on momondo bookings for flights between Seattle and District of Columbia, the leading plane model is Boeing 737 MAX 9, making up 22.73% of the total bookings. Other popular models include Boeing 737-800 Passenger/BBJ2 (winglets) with 21.67%, Boeing 737-900 Passenger/BBJ3 (winglets) with 15.48%, and Boeing 737 with 11.31%.
Best airlines flying from Seattle to District of Columbia
Compare and see reviews for airlines that fly from Seattle to District of Columbia with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $86 | Free Cancellation | Rating 5.9 3,296 reviews | |||
| PriceFrom $143 | Free Cancellation | Rating 7.8 2,500 reviews | |||
| PriceFrom $182 | Free Cancellation | Rating 6.3 8,061 reviews | |||
| PriceFrom $203 | Free Cancellation | Rating 8.0 7,963 reviews | |||
| PriceFrom $206 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $208 | Free Cancellation | Rating 6.9 345 reviews | |||
| PriceFrom $238 | Free Cancellation | Rating 7.4 8,801 reviews | |||
| PriceFrom $253 | Free Cancellation | Rating 8.0 10,000 reviews | |||
| PriceFrom $296 | Free Cancellation | Rating 8.0 4,278 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Seattle to District of Columbia?
Finding the right flight to District of Columbia from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to District of Columbia quick and easy, saving you time and money.
Can I find flights from Seattle to District of Columbia with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Seattle to District of Columbia flights to just show those with flexible booking policies.
How can momondo help me find flights from Seattle to District of Columbia?
Once you have performed a search for Seattle to District of Columbia 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 District of Columbia right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Seattle to District of Columbia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.