Question 1

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

Accepted Answer

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

Question 2

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

Accepted Answer

On average, you can expect to see 5 flights from Washington, D.C. Dulles Intl Airport to Seattle a day.
Morning (6am - Midday) - 80% of flight departures
Evening (6pm - Midnight) - 20% of flight departures

Question 3

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

Accepted Answer

Alaska Airlines, Delta, and Sun Country Air can get you from Washington, D.C. Dulles Intl Airport to Seattle in just under 6h 03m. Your travel time can differ by up to 7h 37m. The distance from Washington, D.C. Dulles Intl Airport to Seattle is about 2313 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

Question 4

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

Accepted Answer

Our cheapest airline available from Washington, D.C. Dulles Intl Airport to Seattle is Alaska Airlines. Our recent data shows that you can find tickets from as low as £167 on this airline. Additional options worth looking into are Delta and Sun Country Air, starting at £200 and £229 round-trip. Alaska Airlines is 44% 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 Washington, D.C. Dulles Intl Airport to Seattle one-way?

Accepted Answer

The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as £100. However, be on the lookout for offers from Alaska Airlines and Sun Country Air, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Seattle for a low price.

Question 6

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 26/7.

Question 7

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

Accepted Answer

The best time to book flights from Washington, D.C. Dulles Intl Airport to Seattle is 53 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Question 8

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

Accepted Answer

Currently, December is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Seattle (average of £576). Flying from Washington, D.C. Dulles Intl Airport to Seattle in July is currently the most expensive (average of £823). 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.

Question 9

E

Accepted Answer

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

Question 10

E

Accepted Answer

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

Question 11

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

Accepted Answer

Looking for the cheapest flight from Washington, D.C. Dulles Intl Airport to Seattle? While on average our users pay £210, our data indicates the cheapest price to be £109. The most popular route (Washington, D.C. Dulles Intl - Seattle/Tacoma Intl), is priced around £200.

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 United Airlines (83%), KLM (77%) and Ethiopian Air (67%).

Question 13

Can I find flights from Washington, D.C. Dulles Intl Airport to Seattle for under £200 on Cheapflights?

Accepted Answer

Yes, there are multiple flights from Washington, D.C. Dulles Intl Airport to Seattle for under £200. The cheapest flight booked recently is on Alaska Airlines for just £167, but on average you can expect to pay £221.

Question 14

Are there nonstop flights from Washington, D.C. Dulles Intl Airport to Seattle for under £200 on Cheapflights?

Accepted Answer

Cheapflights has at least 20 direct flights from Washington, D.C. Dulles Intl Airport to Seattle under £200. A good price for a nonstop flight from Washington, D.C. Dulles Intl Airport to Seattle is less than £255.

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

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 42 days early can save you up to 70% on average compared to booking a flight this week. If booking 42 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 £381 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 £508 for flights departing within the next 3 days.

Question 17

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

Accepted Answer

Our data shows that January tends to be the cheapest month to fly to Seattle from Washington, D.C. Dulles Intl Airport. Users have commonly found prices around £311 for the month, but tickets can be as low as £108. Due to multiple factors, prepare for potentially higher prices in June.

Question 18

What is the cheapest time of day to fly from IAD to SEA?

Accepted Answer

When flying from Washington, D.C. Dulles Intl Airport to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Question 19

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

Accepted Answer

Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to Seattle from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to Seattle/Tacoma Intl (SEA) should be relatively easy as there are 13 daily inbound flights from Washington, D.C. Dulles Intl from 0 different airlines.

Question 20

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 21

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 22

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 23

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 holiday packages that include both flights and hotel.

Question 24

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 25

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 26

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 27

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 28

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

Accepted Answer

When you search for this flight from Dulles Intl to Seattle, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Question 29

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 30

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 31

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

Accepted Answer

Yes, Cheapflights offers price alerts on Dulles Intl to Seattle flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

1%of flight departures	Early morningMidnight to 6 am
49%of flight departures	Morning6 am to noon
39%of flight departures	AfternoonNoon to 6 pm
11%of flight departures	Evening6 pm to midnight

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

Round-trip from	£167
One-way from	£100
Popular in	June
Cheapest in	January

Cheap flights from Washington, D.C. Dulles Intl Airport to Seattle from £100

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 23/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Dulles Intl to Seattle

Round-trip from

One-way from

Popular in

Cheapest in

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?

What is the cheapest time of day to fly from IAD to SEA?

Cheap Sun Country Air flights from Dulles Intl to Seattle

Peruse some of the lowest-priced Sun Country Air flights we've found from Washington, D.C. to Seattle. Make sure to double check the flight details before booking.

Cheap Delta flights from Dulles Intl to Seattle

To aid your search, here are some of the cheapest Delta flights we've found from Washington, D.C. to Seattle. Deals are refreshing constantly so come back soon for more options.

Cheap Dulles Intl to Seattle flights in July & August 2024

Find cheap flight options from Dulles Intl to Seattle specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 1,000,913 searches. Prices were last updated on 26 July 2024.

Scroll through some of the best deals on flights from Washington, D.C. to Seattle in 2024. Check back in a little while for more flight options.

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 1,000,913 searches. Data last updated 26 July 2024.

Scroll through some of the best deals on flights from Washington, D.C. to Seattle in 2024. Check back in a little while for more flight options.

Direct flights to Seattle from Dulles Intl

If you're seeking options on non-stop flights from Washington, D.C. to Seattle, check out these fares. If you're looking for other options for flights from Washington, D.C. to Seattle, make sure to update the search form at the top of page.

Dulles Intl to Seattle flights leaving soon

Users seeking a last-minute flight from Washington, D.C. to Seattle should consider booking one of these fares. To prevent any unwanted surprises, users should verify their flight info before booking.

One-way flights to Seattle from Dulles Intl

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

Find flights from Dulles Intl to Seattle within your budget

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

Use this chart to determine the optimal time to book a return flight from Dulles Intl to Seattle. Price data was last updated on 23 July 2024.

The best time to book flights from Washington, D.C. Dulles Intl Airport to Seattle is 53 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Best time to book a flight from Dulles Intl to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Dulles Intl with our price prediction graph.

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

See what other customers who have flown with Sun Country Air, Delta and United Airlines from Washington, D.C. to Seattle have to say. 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 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 £200 on Cheapflights?

Are there nonstop flights from Washington, D.C. Dulles Intl Airport to Seattle for under £200 on Cheapflights?

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

What days are direct 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 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?

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

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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 26 July 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 26 July 2024.

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

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

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

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

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