Question 1

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

Accepted Answer

Nonstop flights can be found on the following days: Sunday, Monday, Tuesday, Thursday, Friday, Saturday.

Question 2

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

Accepted Answer

Per day, 12 flights depart from Washington, D.C. Dulles Intl Airport to Seattle on average.
Morning (6am - Noon) - 100% of flight departures

Question 3

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

Accepted Answer

There are many flights that can get you from Washington, D.C. Dulles Intl Airport to Seattle in 5h 52m. Fly via Sun Country Air, Delta, or Alaska Airlines to get the fastest option. Airlines will cover a distance of 2313 mi. Both multi-stop and nonstop flights can be found to your destination and back.

Question 4

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

Accepted Answer

Cheapflights users have booked flights from Washington, D.C. Dulles Intl Airport to Seattle round-trip from $255. Other airlines that can offer you cheap pricing are Delta, from $277, and Alaska Airlines, from $286. Sun Country Air is currently priced 34% below the average price you’ll pay for this route.

Question 5

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

Accepted Answer

To fly one-way, consider booking your trip with Sun Country Air, which is currently one of the cheapest options available, starting at $119. Delta flights start at $139 while deals on American Airlines start at $144 one-way.

Question 6

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

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Seattle (average of $247). Flying from Washington, D.C. Dulles Intl Airport to Seattle in July is currently the most expensive (average of $407). 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

$247

February

$254

March

$288

April

$294

May

$318

June

$404

July

$407

August

$344

September

$278

October

$256

November

$258

December

$248

Question 7

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

Accepted Answer

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 34 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Question 8

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

Accepted Answer

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

Question 9

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

Accepted Answer

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

Question 10

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

Accepted Answer

When booking a flight from Washington, D.C. Dulles Intl Airport to Seattle, you may want to consider flying on Undisclosed Carrier, American Airlines or Alaska Airlines as they are the most popular for this route.

Question 11

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

Accepted Answer

The cheapest flight price from Washington, D.C. Dulles Intl Airport to Seattle is $144. On average you can expect to pay $839. The most popular route, (Washington, D.C. Dulles Intl - Seattle/Tacoma Intl), can usually be booked for $255.

Question 12

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

Accepted Answer

The top 3 most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to Seattle are Japan Airlines (90%), United Airlines (87%) and Air Tahiti Nui (85%).

Question 13

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

Accepted Answer

Yes, there are multiple flights from Washington, D.C. Dulles Intl Airport to Seattle for under $300. The cheapest flight booked recently is on Sun Country Air for just $255, but on average you can expect to pay $283.

Question 14

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

Accepted Answer

Cheapflights has at least 20 direct flights from Washington, D.C. Dulles Intl Airport to Seattle under $300. A good price for a nonstop flight from Washington, D.C. Dulles Intl Airport to Seattle is less than $311.

Question 15

Are there last-minute flights available from Washington, D.C. Dulles Intl Airport to Seattle for under $400?

Accepted Answer

There are currently 20+ open flights from Washington, D.C. Dulles Intl Airport to Seattle within the next 7 days for less than $400.

Question 16

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

Accepted Answer

Leaving on a Tuesday 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 24% on the overall cost on flights from Washington, D.C. Dulles Intl Airport to Seattle.

Question 17

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

Accepted Answer

Users have found that booking a flight from Washington, D.C. Dulles Intl Airport to Seattle at least 53 days early can save you up to 61% on average compared to booking a flight this week. If booking 53 days before your flight isn’t an option for you, users have found flights from Washington, D.C. Dulles Intl Airport to Seattle for as little as $472 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $543 for flights departing within the next 3 days.

Question 18

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

Accepted Answer

January is one of the best times of the year to fly to Seattle from Washington, D.C. Dulles Intl Airport. Prices for January average $407 per person but you can even find prices for as low as $139. The most expensive prices can be found in the month of June. Opting for a January flight can save you 31% on your journey compared to booking in June

Question 19

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

Accepted Answer

One of the essential ways to save on airfare from Washington, D.C. Dulles Intl Airport to Seattle is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 45% on airfare.

Question 20

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

Accepted Answer

Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Dulles Intl to Seattle. 6 airlines have flights to Seattle/Tacoma Intl from Washington, D.C. Dulles Intl on a regular basis. Booking flights from Washington, D.C. Dulles Intl to Seattle/Tacoma Intl should not be difficult; the airport handles an average of 13 inbound flights from Washington, D.C. Dulles Intl per day.

Question 21

Accepted Answer

Sun Country Air is one of the most popular airlines used for those traveling from Washington, D.C. Dulles Intl Airport to Seattle. Flights on this route from Sun Country Air typically cost $372.90 RT, a price that is 69% more expensive than the average Washington, D.C. Dulles Intl Airport to Seattle flight. The cheapest flight found was $139 RT. The most popular departure airport in Washington, D.C. Dulles Intl Airport when flying to Seattle is Washington, D.C. Dulles Intl Airport. The most popular airport to fly into when visiting Seattle is Seattle/Tacoma Intl Airport. When flying from Washington, D.C. Dulles Intl Airport to Seattle, Sun Country Air flights are 10% more popular than any other airline flying that same route.

Question 22

Accepted Answer

One of the most popular airlines traveling from Washington, D.C. Dulles Intl Airport to Seattle is Delta. Flights from Delta traveling this route typically cost $381.20 RT. This price is typically 73% cheaper than other airlines that offer Washington, D.C. Dulles Intl Airport to Seattle flights. When booking this route, the cheapest RT price found was $151. Washington, D.C. Dulles Intl Airport is the most common Washington, D.C. Dulles Intl Airport airport to take off from when flying to Seattle. Seattle/Tacoma Intl Airport is the most popular arrival airport in Seattle. When flying from Washington, D.C. Dulles Intl Airport to Seattle, Delta flights are 10% more popular than any other airline flying that same route.

Question 23

What does IAD to SEA mean?

Accepted Answer

Great question - IAD to SEA just means Washington, D.C. Dulles Intl Airport to Seattle/Tacoma Intl Airport. Now you’ll know what these unique codes when you look for flights!

Question 24

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

Accepted Answer

The amount of baggage you can bring on your Dulles Intl to Seattle 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 25

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

Accepted Answer

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

Question 26

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

Accepted Answer

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

Question 27

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

Accepted Answer

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

Question 28

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

Accepted Answer

Yes. Cheapflights offers flight deals from Dulles Intl to Seattle 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 29

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

Accepted Answer

Many airlines flying from Dulles Intl to Seattle 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 30

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

Accepted Answer

Yes, you can often find last-minute deals on Dulles Intl to Seattle 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 31

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

Accepted Answer

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Dulles Intl to Seattle. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Question 32

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

Accepted Answer

Cheapflights simply makes it quick and affordable to book flights from Dulles Intl to Seattle by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Question 33

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

Accepted Answer

Need flexible booking options for your flight to Seattle from Dulles Intl? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Question 34

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

Accepted Answer

Yes! Start tracking prices for Dulles Intl to Seattle flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

Popular in	June
Cheapest in	January
Round-trip from	$247
One-way from	$154

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$139	Average$373	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Alaska Airlines	Cheapest$151	Average$381	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights
Frontier	Cheapest$188	Average$266	FlexibilityNo cancel fee	On-time62%	Search Frontier flights
United Airlines	Cheapest$194	Average$438	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
American Airlines	Cheapest$254	Average$528	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights

1%of flight departures	Early morningMidnight to 6 am
53%of flight departures	Morning6 am to noon
35%of flight departures	AfternoonNoon to 6 pm
11%of flight departures	Evening6 pm to midnight

Sunday	14daily flights
Monday	14daily flights
Tuesday	11daily flights
Wednesday	13daily flights
Thursday	12daily flights
Friday	15daily flights
Saturday	14daily flights

Cheap flights from Dulles Intl (IAD) to Seattle (SEA) from $119

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 7/2. 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 Washington, D.C. Dulles Intl to Seattle/Tacoma Intl are usually found in January or November, booked 34 days in advance, depart on a Wednesday or Thursday and return on a Thursday

Cheap flight deals from Dulles Intl to Seattle

Popular in

Cheapest in

Round-trip from

One-way from

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

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

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

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

Cheap Sun Country Air flights from Dulles Intl to Seattle

Check out some of the cheapest Sun Country Air flights we've come across from Washington, D.C. to Seattle. Come back soon if you're not finding the exact deal you're looking for.

Cheap Delta flights from Dulles Intl to Seattle

Browse through some of the cheapest Delta flights traveling from Washington, D.C. to Seattle. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.

Cheap Dulles Intl to Seattle flights in May & June 2024

Find cheap flight options from Dulles Intl to Seattle 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.

The lowest fares we've come across on flights traveling from Washington, D.C. to Seattle in May and June 2024. For more flight deals, be sure to check back very soon.

Dulles Intl to Seattle 2024 flight deals

Discover exclusive flight deals for travel between Dulles Intl and Seattle 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.

The lowest fares we've come across on flights traveling from Washington, D.C. to Seattle in May and June 2024. For more flight deals, be sure to check back very soon.

Non-stop flights to Seattle from Dulles Intl

Consider booking one of these non-stop flights heading from Washington, D.C. to Seattle. Those looking to potentially save on 1 or 2-stop flights from Washington, D.C. to Seattle should utilize the search form at the the top of the page.

Dulles Intl to Seattle flights leaving soon

Check out these flights departing soon from Washington, D.C. to Seattle. It's wise to confirm all flight details are correct before booking.

One-way flights to Seattle from Dulles Intl

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

Find flights from Dulles Intl to Seattle within your budget

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

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

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 34 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

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

Average price of flights to Seattle by month

Plan your trip from Dulles Intl to Seattle by taking into account the cheapest months to travel. The average price of a one-way flight from Dulles Intl to Seattle is currently $131 while a round-trip flight costs $280. Price data was last updated on May 12, 2024.

Temperature and rainfall in Seattle by month

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

Reviews of airlines servicing Seattle

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Seattle. 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 into for flights to Seattle from Washington, D.C. Dulles Intl?

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

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

Are there last-minute flights available from Washington, D.C. Dulles Intl Airport to Seattle for under $400?

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

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

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

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

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

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

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

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

What does IAD to SEA mean?

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

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

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

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

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

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

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

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

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Alternative routes for Dulles Intl to SeattleSee 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 5 airlines flying from Dulles Intl to Seattle

Popular flight searches

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Search flights from Dulles Intl to Seattle by cabin class

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

Hourly flight availability from Dulles Intl to Seattle

Find hourly flight availability from Dulles Intl to Seattle. 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 Dulles Intl to Seattle

Explore weekly flight availability from Dulles Intl to Seattle. 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 Dulles Intl to Seattle
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