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, 23 flights depart from Washington, D.C. Dulles Intl Airport to Seattle on average.
Morning (6am - Noon) - 83% of flight departures
Evening (6pm - Midnight) - 17% 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 51m. Fly via Alaska Airlines, Delta, or United 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 $276. Other airlines that can offer you cheap pricing are Delta, from $277, and United Airlines, from $293. Alaska Airlines is currently priced 28% 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 Alaska Airlines, which is currently one of the cheapest options available, starting at $150. Sun Country Air flights start at $153 while deals on American Airlines start at $159 one-way.

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 6/6.

Question 7

How far ahead should I 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

What is the cheapest month 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 $406). 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

What is the cheapest day 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 10

E

Accepted Answer

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Question 11

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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Question 12

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 $759. The most popular route, (Washington, D.C. Dulles Intl - Seattle/Tacoma Intl), can usually be booked for $277.

Question 13

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 Finnair (100%), Singapore Airlines (83%) and United Airlines (81%).

Question 14

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 15

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 Alaska Airlines for just $276, but on average you can expect to pay $294.

Question 16

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 $322.

Question 17

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

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 $300.

Question 18

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 22% on the overall cost on flights from Washington, D.C. Dulles Intl Airport to Seattle.

Question 19

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 $474 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 20

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 $406 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 29% on your journey compared to booking in June

Question 21

What is the cheapest time of day to fly from IAD to 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 43% on airfare.

Question 22

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. 7 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 23

Accepted Answer

If you’re traveling from Washington, D.C. Dulles Intl Airport to Seattle, one of the more common airlines traveling that route is American Airlines. Flights from American Airlines traveling this route typically cost $376.20 RT. This price is typically 79% more expensive than other airlines that offer Washington, D.C. Dulles Intl Airport to Seattle flights. When booking this route, the cheapest RT price found was $139. 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, American Airlines flights are 10% more popular than any other airline flying that same route.

Question 24

Accepted Answer

If you’re traveling from Washington, D.C. Dulles Intl Airport to Seattle, one of the more common airlines traveling that route is United Airlines. Flights from United Airlines traveling this route typically cost $379.57 RT. This price is typically 77% more expensive than other airlines that offer Washington, D.C. Dulles Intl Airport to Seattle flights. When booking this route, the cheapest RT price found was $144. 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, United Airlines flights are 10% more popular than any other airline flying that same route.

Question 25

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 26

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 27

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 28

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 29

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 30

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 31

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 32

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.

Popular in	June
Cheapest in	January
Round-trip from	$247
One-way from	$174

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$139	Average$376	FlexibilityNo cancel fee	On-timeN/A
Alaska Airlines	Cheapest$144	Average$380	FlexibilityNo cancel fee	On-time75%
Sun Country Air	Cheapest$148	Average$301	FlexibilityNo cancel fee	On-time83%
Frontier	Cheapest$188	Average$265	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$194	Average$427	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$254	Average$528	FlexibilityNo cancel fee	On-time71%

1%of flight departures	Early morningMidnight to 6 am
31%of flight departures	Morning6 am to noon
64%of flight departures	AfternoonNoon to 6 pm
4%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 $150

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 7/23. 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 Tuesday and return on a Thursday

Cheap flight deals from Dulles Intl to Seattle

Popular in

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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?

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

Cheap Dulles Intl to Seattle flights in June & July 2024

Find cheap flight options from Dulles Intl to Seattle specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Prices were last updated on June 6, 2024.

The lowest fares we've come across on flights traveling from Washington, D.C. to Seattle in June and July 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 3,050,429 searches. Data last updated June 6, 2024.

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

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

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 round-trip flight from Dulles Intl to Seattle. Price data was last updated on May 31, 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.

What is the cheapest day 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 June 2, 2024.

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

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 $300?

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

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

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Top 6 airlines flying from Dulles Intl to Seattle

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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 June 6, 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 June 6, 2024.

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