Question 1

What days are nonstop flights available from Seattle to Washington, D.C. Dulles Intl Airport?

Accepted Answer

Nonstop flights can be found on the following days: Tuesday, Friday.

Question 2

How many flights depart from Seattle to Washington, D.C. Dulles Intl Airport on average per day?

Accepted Answer

Per day, 8 flights depart from Seattle to Washington, D.C. Dulles Intl Airport on average.
Afternoon (Noon - 6pm) - 88% of flight departures
Evening (6pm - Midnight) - 13% of flight departures

Question 3

How long is the flight from Seattle to Washington, D.C. Dulles Intl Airport?

Accepted Answer

Airlines like Sun Country Air, United Airlines, and American Airlines fly from Seattle to Washington, D.C. Dulles Intl Airport in about 4h 59m. The time it takes to get you to your destination can typically vary by up to 10h 04m. The distance between Seattle and Washington, D.C. Dulles Intl Airport is about 2313 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

Question 4

What are the cheapest airlines flying from Seattle to Washington, D.C. Dulles Intl Airport round-trip?

Accepted Answer

Sun Country Air, at $275, was found to be the cheapest airline from Seattle to Washington, D.C. Dulles Intl Airport.Alternate airlines to your destination round-trip include United Airlines and American Airlines. Sun Country Air is 30% cheaper than the average price of flights available within the next 90 days to this destination.

Question 5

What are the cheapest airlines to fly from Seattle to Washington, D.C. Dulles Intl Airport one-way?

Accepted Answer

The cheapest airlines for a one-way flight from Seattle to Washington, D.C. Dulles Intl Airport are Alaska Airlines ($139), Sun Country Air ($143), and Delta ($145).

Question 6

When is the best time to book a flight from Seattle to Washington, D.C. Dulles Intl Airport?

Accepted Answer

Currently, September is the cheapest month in which you can book a flight from Seattle to Washington, D.C. Dulles Intl Airport (average of $280). Flying from Seattle to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $397). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$308

February

$303

March

$358

April

$337

May

$336

June

$397

July

$376

August

$298

September

$280

October

$303

November

$328

December

$293

Question 7

When is the best time to book a flight from Seattle to Washington, D.C. Dulles Intl Airport?

Accepted Answer

Booking 61 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Question 8

When is the cheapest time to fly from Seattle to Washington, D.C. Dulles Intl Airport?

Accepted Answer

Travelers seeking maximum savings on their Seattle to Washington, D.C. Dulles Intl Airport flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 9

How recently were the Seattle to Washington, D.C. Dulles Intl Airport flight deals updated?

Accepted Answer

The Seattle to Washington, D.C. Dulles Intl Airport flight deals you see on this page were last updated on 5/15.

Question 10

What are the most popular airlines that fly from Seattle to Washington, D.C. Dulles Intl Airport?

Accepted Answer

The most popular airlines flying from Seattle to Washington, D.C. Dulles Intl Airport are American Airlines, Alaska Airlines and Delta. Something to consider prior to booking your flight.

Question 11

What are the cheapest flights from Seattle to Washington, D.C. Dulles Intl Airport?

Accepted Answer

Looking at all options, your cheapest flight can be booked for $143. While the most popular route (Seattle/Tacoma Intl - Washington, D.C. Dulles Intl) can be booked for $255 on average our data indicates $1,093 when flying from Seattle to Washington, D.C. Dulles Intl Airport.

Question 12

What are the most reliable airlines from Seattle to Washington, D.C. Dulles Intl Airport?

Accepted Answer

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Seattle to Washington, D.C. Dulles Intl Airport on time: Scandinavian Airlines (96%), Brussels Airlines (93%), Lufthansa (93%).

Question 13

Can I find flights from Seattle to Washington, D.C. Dulles Intl Airport for under $300 on Cheapflights?

Accepted Answer

Yes, there are multiple flights from Seattle to Washington, D.C. Dulles Intl Airport for under $300. The cheapest flight booked recently is on Sun Country Air for just $275, but on average you can expect to pay $291.

Question 14

Are there nonstop flights from Seattle to Washington, D.C. Dulles Intl Airport for under $300 on Cheapflights?

Accepted Answer

Cheapflights has at least 20 direct flights from Seattle to Washington, D.C. Dulles Intl Airport under $300. A good price for a nonstop flight from Seattle to Washington, D.C. Dulles Intl Airport is less than $329.

Question 15

Are there last-minute flights available from Seattle to Washington, D.C. Dulles Intl Airport for under $300?

Accepted Answer

There are currently 20+ open flights from Seattle to Washington, D.C. Dulles Intl Airport within the next 7 days for less than $300.

Question 16

What is the cheapest day to fly round-trip from Seattle to Washington, D.C. Dulles Intl Airport?

Accepted Answer

Leaving on a Wednesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 21% on the overall cost on flights from Seattle to Washington, D.C. Dulles Intl Airport.

Question 17

How far in advance should I book a flight from Seattle to Washington, D.C. Dulles Intl Airport?

Accepted Answer

To save on the cost of your flight from Seattle to Washington, D.C. Dulles Intl Airport, book at least 50 days before your planned departure. Booking around this time can save you about 78% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $452 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $635.

Question 18

What is the cheapest month to fly from Seattle to Washington, D.C. Dulles Intl Airport?

Accepted Answer

February can be a great time to fly to Washington, D.C. Dulles Intl Airport from Seattle with a flight ticket averaging about $402. Cheapflights users have found deals in the month of February for as cheap as $125. The most expensive prices can be found in the month of June.

Question 19

When is the cheapest time to fly from Seattle to Washington, D.C. Dulles Intl Airport (SEA - IAD)?

Accepted Answer

A simple way to save on the total cost of your ticket is to fly from Seattle to Washington, D.C. Dulles Intl Airport in the afternoon. If you’re flexible enough to do this you can expect to save up to 12% on your trip compared to booking a flight at noon.

Question 20

What airport do you fly from for flights from Seattle to Washington, D.C. Dulles Intl?

Accepted Answer

If you book a flight to Washington, D.C. Dulles Intl from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle. There are 15 flights from Seattle/Tacoma Intl to Washington, D.C. Dulles Intl per day from 4 different airlines.

Question 21

What does SEA to IAD mean?

Accepted Answer

SEA and IAD are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. SEA to IAD refers to a flight route from Seattle/Tacoma Intl Airport to Washington, D.C. Dulles Intl Airport.

Question 22

Can I find deals for flights from Seattle to Dulles Intl that include extra baggage allowance?

Accepted Answer

The amount of baggage you can bring on your Seattle to Dulles Intl flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

Question 23

Can I find deals on flights from Seattle to Dulles Intl with specific airlines?

Accepted Answer

Yes, Cheapflights allows you to browse and filter Seattle to Dulles Intl flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

Question 24

Can I find deals for flights from Seattle to Dulles Intl that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Seattle to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

Question 25

How can I find direct flights from Seattle to Dulles Intl?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Dulles Intl.

Question 26

Can I find deals for business class flights from Seattle to Dulles Intl?

Accepted Answer

Yes. Cheapflights offers flight deals from Seattle to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 27

Can I find deals for flights from Seattle to Dulles Intl that allow pets onboard?

Accepted Answer

Many airlines flying from Seattle to Dulles Intl offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

Question 28

Can I find deals on last-minute flights from Seattle to Dulles Intl?

Accepted Answer

Yes, you can often find last-minute deals on Seattle to Dulles Intl flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

Question 29

How does Cheapflights help users find flights from Seattle to Dulles Intl?

Accepted Answer

Cheapflights makes it easy to find Seattle to Dulles Intl flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Question 30

Why should you use Cheapflights to find cheap flight tickets from Seattle to Dulles Intl?

Accepted Answer

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Dulles Intl from Seattle.

Question 31

Can Cheapflights find flights from Seattle to Dulles Intl with no change fees?

Accepted Answer

Yes, we can. To see specific flights from Seattle to Dulles Intl with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Question 32

Can Cheapflights notify me if prices for flights from Seattle to Dulles Intl become cheaper?

Accepted Answer

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Dulles Intl from Seattle today and book when prices fit your budget.

Popular in	June
Cheapest in	January
Round-trip from	$235
One-way from	$172

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$154	Average$371	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Alaska Airlines	Cheapest$159	Average$396	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights
United Airlines	Cheapest$212	Average$407	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
American Airlines	Cheapest$353	Average$445	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights

1%of flight departures	Early morningMidnight to 6 am
50%of flight departures	Morning6 am to noon
31%of flight departures	AfternoonNoon to 6 pm
18%of flight departures	Evening6 pm to midnight

Sunday	16daily flights
Monday	17daily flights
Tuesday	14daily flights
Wednesday	15daily flights
Thursday	14daily flights
Friday	16daily flights
Saturday	16daily flights

Cheap flights from Seattle (SEA) to Dulles Intl (IAD) from $139

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.

The best prices from Seattle/Tacoma Intl to Washington, D.C. Dulles Intl are usually found in January or February, booked 61 days in advance, depart on a Thursday or Wednesday and return on a Wednesday

Cheap flight deals from Seattle to Dulles Intl

Popular in

Cheapest in

Round-trip from

One-way from

What is the cheapest day to fly round-trip from Seattle to Washington, D.C. Dulles Intl Airport?

How far in advance should I book a flight from Seattle to Washington, D.C. Dulles Intl Airport?

What is the cheapest month to fly from Seattle to Washington, D.C. Dulles Intl Airport?

When is the cheapest time to fly from Seattle to Washington, D.C. Dulles Intl Airport (SEA - IAD)?

Cheap Sun Country Air flights from Seattle to Dulles Intl

Peruse some of the lowest-priced Sun Country Air flights we've found from Seattle to Washington, D.C.. Make sure to check back often as deals are often changing.

Cheap United Airlines flights from Seattle to Dulles Intl

Have a look at some of the cheapest available United Airlines flights departing from Seattle and landing in Washington, D.C.. Ensure the flight price, dates, time, and airline match your criteria before you book.

Cheap Seattle to Dulles Intl flights in May & June 2024

Find cheap flight options from Seattle to Dulles Intl specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Prices were last updated on May 16, 2024.

Scroll through some of the best deals on flights from Seattle to Washington, D.C. in 2024. Check back regularly for other flight deals.

Seattle to Dulles Intl 2024 flight deals

Discover exclusive flight deals for travel between Seattle and Dulles Intl in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.

Scroll through some of the best deals on flights from Seattle to Washington, D.C. in 2024. Check back regularly for other flight deals.

Non-stop flights to Dulles Intl from Seattle

For a shorter flight, select one of these non-stop flights from Seattle to Washington, D.C.. If you're looking for other options for flights from Seattle to Washington, D.C., make sure to update the search form at the top of page.

Seattle to Dulles Intl flights leaving soon

Consider one of these great deals we found on last-minute flights from Seattle to Washington, D.C.. To prevent any unwanted surprises, users should verify their flight info before booking.

One-way flights to Dulles Intl from Seattle

Take a look at some of the best available options we've come across on one-way flights from Seattle to Washington, D.C.. Users can also find round-trip Seattle to Washington, D.C. flights by using the search form above.

Find flights from Seattle to Dulles Intl within your budget

When is the best time to book a flight from Seattle to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Dulles Intl. Price data was last updated on May 10, 2024.

Booking 61 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

When is the cheapest time to fly from Seattle to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Dulles Intl. Price data was last updated on May 12, 2024.

Average price of flights to Dulles Intl by month

Plan your trip from Seattle to Dulles Intl by taking into account the cheapest months to travel. The average price of a one-way flight from Seattle to Dulles Intl is currently $150 while a round-trip flight costs $295. Price data was last updated on May 12, 2024.

Temperature and rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature and rainfall totals by month.

Reviews of airlines servicing Dulles Intl

Get a feel of what it's like to fly with Sun Country Air, United Airlines and American Airlines from Seattle to Washington, D.C. by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Seattle to Washington, D.C. Dulles Intl?

Can I find flights from Seattle to Washington, D.C. Dulles Intl Airport for under $300 on Cheapflights?

Are there nonstop flights from Seattle to Washington, D.C. Dulles Intl Airport for under $300 on Cheapflights?

Are there last-minute flights available from Seattle to Washington, D.C. Dulles Intl Airport for under $300?

What days are nonstop flights available from Seattle to Washington, D.C. Dulles Intl Airport?

How many flights depart from Seattle to Washington, D.C. Dulles Intl Airport on average per day?

How long is the flight from Seattle to Washington, D.C. Dulles Intl Airport?

What are the cheapest airlines flying from Seattle to Washington, D.C. Dulles Intl Airport round-trip?

What are the cheapest airlines to fly from Seattle to Washington, D.C. Dulles Intl Airport one-way?

What are the most popular airlines that fly from Seattle to Washington, D.C. Dulles Intl Airport?

What are the most reliable airlines from Seattle to Washington, D.C. Dulles Intl Airport?

What are the cheapest flights from Seattle to Washington, D.C. Dulles Intl Airport?

What does SEA to IAD mean?

Can I find deals for flights from Seattle to Dulles Intl that include extra baggage allowance?

Can I find deals on flights from Seattle to Dulles Intl with specific airlines?

Can I find deals for flights from Seattle to Dulles Intl that include hotel bookings?

How can I find direct flights from Seattle to Dulles Intl?

Can I find deals for business class flights from Seattle to Dulles Intl?

Can I find deals for flights from Seattle to Dulles Intl that allow pets onboard?

Can I find deals on last-minute flights from Seattle to Dulles Intl?

How recently were the Seattle to Washington, D.C. Dulles Intl Airport flight deals updated?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Dulles IntlSee prices for flight routes from nearby airports that may be better suited for you.

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Seattle to Dulles Intl

Popular flight searches

Check out other popular destinations found by fellow travelers in 2024

Search flights from Seattle to Dulles Intl by cabin class

Find flights from Seattle to Dulles Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from Seattle to Dulles Intl

Find hourly flight availability from Seattle to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 16, 2024.

Weekly flight availability from Seattle to Dulles Intl

Explore weekly flight availability from Seattle to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 16, 2024.

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Alternative routes for Seattle to Dulles Intl
See prices for flight routes from nearby airports that may be better suited for you.