Question 1

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 Delta. Our recent data shows that you can find tickets from as low as C$ 360 on this airline. Additional options worth looking into are United Airlines and Alaska Airlines, starting at C$ 367 and C$ 372 round-trip. Delta is 35% cheaper than the average price of flights available within the next 90 days to this destination.

Question 2

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 Alaska Airlines, with whom users have recently found tickets for as low as C$ 193. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from Seattle to Washington, D.C. Dulles Intl Airport for a low price.

Question 3

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

Accepted Answer

Booking 34 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 4

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

Accepted Answer

Currently, February is the cheapest month in which you can book a flight from Seattle to Washington, D.C. Dulles Intl Airport (average of C$ 257). Flying from Seattle to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of C$ 347). 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 5

What is the cheapest day 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. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 6

Weekly flight availability from Seattle to Washington, D.C. Dulles Intl Airport

Accepted Answer

The most flights from SEA to IAD are scheduled on a Wednesday (19 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (11 on average).

Question 7

E

Accepted Answer

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 66.0 - 102.0 mm per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 66.0 mm.

Question 8

E

Accepted Answer

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Question 9

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$ 1,096, our data shows the cheapest flight currently is C$ 212. When looking at the most popular route, (Seattle/Tacoma Intl - Washington, D.C. Dulles Intl), you can expect to pay C$ 566 for that flight.

Question 10

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: Iberia (93%), Qatar Airways (93%), KLM (93%).

Question 11

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 Monday departure is the best way to save up to 87% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

Question 12

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 58 days in advance, which can save you up to 87% on flights from Seattle to Washington, D.C. Dulles Intl Airport compared to booking the week you need them. Waiting 58 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$ 700. For sooner than that we have options available in the next 3 days from C$ 826.

Question 13

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$ 563 per person but you can even find prices for as low as C$ 175. The most expensive prices can be found in the month of June. Opting for a February flight can save you 16% on your journey compared to booking in June

Question 14

What is the cheapest time of day to fly from SEA to 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 42% on your trip compared to booking a flight in the evening.

Question 15

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 14 flights from Seattle/Tacoma Intl to Washington, D.C. Dulles Intl per day from 2 different airlines.

Question 16

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 17

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 18

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 19

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 20

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 21

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 22

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!

Airline	Cheapest	Average	Flexibility	On-time
Alaska Airlines	CheapestC$ 376	AverageC$ 526	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights
United Airlines	CheapestC$ 601	AverageC$ 1,201	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

Round-trip from	C$ 360
One-way from	C$ 193
Popular in	June
Cheapest in	January

Cheap flights from Seattle to Washington, D.C. Dulles Intl Airport from C$ 193

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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.

The best prices from Seattle/Tacoma Intl to Washington, D.C. Dulles Intl are usually found in January or February, booked 34 days in advance, depart on a Monday or Thursday and return on a Monday

Cheap flight deals from Seattle to Dulles Intl

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Find flight deals from Seattle to Dulles Intl

Cheapest flights from Seattle to Dulles IntlExplore the most affordable flight options available from Seattle to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 November 2024.

Explore the most affordable flight options available from Seattle to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 November 2024.

Find flights from Seattle to Dulles Intl within your budget

Best time to book a flight from Seattle to Dulles Intl

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

Travel insights for flights from Seattle to Dulles Intl

Get recent, data-driven insights about flights from Seattle to Dulles Intl including ideal travel times, pricing trends, and more.

How far ahead should I 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 15 November 2024.

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

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

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 November 2024.

Weekly flight availability from Seattle to Washington, D.C. Dulles Intl Airport

Rainfall in Dulles Intl by month

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

Temperature in Dulles Intl by month

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

Reviews of airlines servicing Dulles Intl

Read reviews from past customers who have flown Delta, United Airlines and Alaska Airlines 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?

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?

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?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Seattle to Dulles Intl

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Top 2 airlines flying from Seattle to Dulles Intl

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

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

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

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

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Cheapest flights from Seattle to Dulles Intl
Explore the most affordable flight options available from Seattle to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 November 2024.