Question 1

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

Accepted Answer

You can find direct flights on the following days: Tuesday, Wednesday, Thursday, Friday, Saturday.

Question 2

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

Accepted Answer

17 flight departures from Seattle to Washington, D.C. Dulles Intl Airport per day on average.
Morning (6am - Midday) - 41% of flight departures
Afternoon (Noon - 6pm) - 18% of flight departures
Evening (6pm - Midnight) - 41% of flight departures

Question 3

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

Accepted Answer

Alaska Airlines, Sun Country Air, and Delta can get you from Seattle to Washington, D.C. Dulles Intl Airport in just under 4h 53m. Your travel time can differ by up to 5h 18m. Seattle and Washington, D.C. Dulles Intl Airport are separated by a distance of 3722 km. This flight may include one or multiple stops.

Question 4

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

Accepted Answer

Our cheapest airline available from Seattle to Washington, D.C. Dulles Intl Airport is Alaska Airlines. Our recent data shows that you can find tickets from as low as C$ 377 on this airline. Additional options worth looking into are Sun Country Air and Delta, starting at C$ 388 and C$ 393 round-trip. Alaska Airlines is 29% 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 airline one-way is Delta, with whom users have recently found tickets for as low as C$ 189. However, be on the lookout for offers from Sun Country Air and Alaska Airlines, as they are both options that can get you from Seattle to Washington, D.C. Dulles Intl Airport for a low price.

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 C$ 250). Flying from Seattle to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of C$ 353). 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

C$ 381

February

C$ 350

March

C$ 382

April

C$ 374

May

C$ 455

June

C$ 475

July

C$ 480

August

C$ 479

September

C$ 340

October

C$ 369

November

C$ 421

December

C$ 362

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 Tuesday mornings when fares are most often at their lowest. Wednesday 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 20/5.

Question 10

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

Accepted Answer

While on average a flight from Seattle to Washington, D.C. Dulles Intl Airport is generally C$ 1,816, our data shows the cheapest flight currently is C$ 217. When looking at the most popular route, (Seattle/Tacoma Intl - Washington, D.C. Dulles Intl), you can expect to pay C$ 1,392 for that flight.

Question 11

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 12

Can I find flights from Seattle to Washington, D.C. Dulles Intl Airport for under C$ 400 on Cheapflights?

Accepted Answer

Yes, there are multiple flights from Seattle to Washington, D.C. Dulles Intl Airport for under C$ 400. The cheapest flight booked recently is on Alaska Airlines for just C$ 377, but on average you can expect to pay C$ 421.

Question 13

Are there direct flights from Seattle to Washington, D.C. Dulles Intl Airport for under C$ 400 on Cheapflights?

Accepted Answer

Cheapflights has 20 direct flights from Seattle to Washington, D.C. Dulles Intl Airport under C$ 400. A good price for a direct flight from Seattle to Washington, D.C. Dulles Intl Airport is less than C$ 479.

Question 14

Are there last-minute flights available from Seattle to Washington, D.C. Dulles Intl Airport for under C$ 500?

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 C$ 500.

Question 15

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

Accepted Answer

Travellers have found that booking a Wednesday departure is the best way to save up to 37% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

Question 16

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

Accepted Answer

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 50 days in advance, which can save you up to 78% on flights from Seattle to Washington, D.C. Dulles Intl Airport compared to booking the week you need them. Waiting 50 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at C$ 615. For sooner than that we have options available in the next 3 days from C$ 864.

Question 17

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

Accepted Answer

February is one of the best times of the year to fly to Washington, D.C. Dulles Intl Airport from Seattle. Prices for February average C$ 547 per person but you can even find prices for as low as C$ 170. The most expensive prices can be found in the month of June. Opting for a February flight can save you 23% on your journey compared to booking in June

Question 18

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 at noon. If you’re flexible enough to do this you can expect to save up to 41% on your trip compared to booking a flight in the afternoon.

Question 19

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 18.4 km from the centre of Seattle. There are 15 flights from Seattle/Tacoma Intl to Washington, D.C. Dulles Intl per day from 1 airline.

Question 20

What does SEA to IAD mean?

Accepted Answer

SEA stands for Seattle/Tacoma Intl Airport, while IAD stands for Washington, D.C. Dulles Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

Question 21

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 22

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 23

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 24

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 25

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 26

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 27

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 28

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

Accepted Answer

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Dulles Intl from Seattle today with Cheapflights!

Question 29

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

Accepted Answer

Cheapflights helps you find that perfect flight to Dulles Intl from Seattle by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Question 30

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

Accepted Answer

Cheapflights does show flights with no change fees to all users. To see these options for flights from Seattle to Dulles Intl, users can toggle the no change fees filter when performing a flight search.

Question 31

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

Accepted Answer

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

Popular in	June
Cheapest in	January
Round-trip from	C$ 357
One-way from	C$ 310

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 to Washington, D.C. Dulles Intl Airport from C$ 189

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 11/6. 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.

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 Alaska Airlines flights from Seattle to Dulles Intl

Take a peek at the cheapest Alaska Airlines flights we've detected travelling from Seattle to Washington, D.C.. Make sure to double check the flight details before booking.

Cheap Sun Country Air flights from Seattle to Dulles Intl

Some of the lowest-priced Sun Country Air flights we've found at this time heading from Seattle to Washington, D.C.. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.

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 406,380 searches. Prices were last updated on 20 May 2024.

Check out some of the best flight deals from Seattle to Washington, D.C. in 2024. For more flight deals, be sure to check back very soon.

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 406,380 searches. Data last updated 20 May 2024.

Check out some of the best flight deals from Seattle to Washington, D.C. in 2024. For more flight deals, be sure to check back very soon.

Direct flights to Dulles Intl from Seattle

If you're seeking options on non-stop flights from Seattle to Washington, D.C., check out these fares. Select from other flights from Seattle to Washington, D.C. by using the search form above.

Seattle to Dulles Intl flights leaving soon

Check out these flights departing soon 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

Users in need of a one-way flight from Seattle to Washington, D.C. can choose from these deals. Users in need of a round-trip flight from Seattle to Washington, D.C. instead should update the search form at the top of page.

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 10 May 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 19 May 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 C$ 218 while a round-trip flight costs C$ 411. Price data was last updated on 19 May 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

Read reviews from past customers who have flown Alaska Airlines, Sun Country Air and Delta from Seattle to Washington, D.C.. Users can see the overall rating for each airline as well as how each is rated 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 C$ 400 on Cheapflights?

Are there direct flights from Seattle to Washington, D.C. Dulles Intl Airport for under C$ 400 on Cheapflights?

Are there last-minute flights available from Seattle to Washington, D.C. Dulles Intl Airport for under C$ 500?

What days are direct 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 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 airline flying from Seattle to Dulles Intl

Popular flight searches

Check out other popular destinations found by fellow travellers 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 20 May 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 20 May 2024.

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

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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.