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IAD - SEA

Find cheap flights from Washington Dulles Airport to Seattle from $114

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Seattle departing on 6/4. 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.
1 adult
0 bags
Mon 6/3
Mon 6/10

Search hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Seattle.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Seattle.
In the last 7 days travelers have searched 43,369,418 times on KAYAK, and here is why:

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Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

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Cheap flight deals from Dulles Intl to Seattle (IAD-SEA)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:05 pm - 12:22 pmIAD-SEA
21h 17m1 stop
4:00 pm - 11:59 pmSEA-IAD
4h 59mnonstop
$246Alaska Airlines
Find Deal
Wed, May 29 - Thu, May 30
7:35 am - 10:20 amIAD-SEA
5h 45mnonstop
8:35 am - 4:45 pmSEA-IAD
5h 10mnonstop
$277Delta
Find Deal
Wed, May 29 - Tue, Jun 4
6:20 pm - 10:50 pmIAD-SEA
7h 30m1 stop
5:05 pm - 11:08 amSEA-IAD
15h 03m1 stop
$280Sun Country Air
Find Deal
Fri, May 31 - Mon, Jun 3
7:35 am - 10:20 amIAD-SEA
5h 45mnonstop
10:22 pm - 6:26 amSEA-IAD
5h 04mnonstop
$283Delta
Find Deal
Wed, May 29 - Mon, Jun 3
2:05 pm - 8:43 pmIAD-SEA
9h 38m1 stop
6:00 am - 7:44 pmSEA-IAD
10h 44m1 stop
$285American Airlines
Find Deal
Tue, Sep 10 - Sat, Sep 21
5:29 pm - 11:35 pmIAD-SEA
9h 06m1 stop
5:29 am - 4:38 pmSEA-IAD
8h 09m1 stop
$288American Airlines
Find Deal
Sat, Aug 17 - Wed, Aug 21
10:15 pm - 12:59 amIAD-SEA
5h 44mnonstop
11:59 pm - 9:55 amSEA-IAD
6h 56m1 stop
$292United Airlines
Find Deal
Mon, Jun 10 - Tue, Jun 11
6:20 pm - 8:00 amIAD-SEA
16h 40m1 stop
11:45 am - 10:21 amSEA-IAD
19h 36m1 stop
$295Sun Country Air
Find Deal
Fri, May 31 - Tue, Jun 4
7:00 am - 9:30 amIAD-SEA
5h 30mnonstop
3:55 pm - 5:40 amSEA-IAD
10h 45m1 stop
$297Alaska Airlines
Find Deal
Sun, May 26 - Tue, Jun 4
5:23 pm - 8:10 pmIAD-SEA
5h 47mnonstop
11:29 pm - 7:28 amSEA-IAD
4h 59mnonstop
$346United Airlines
Find Deal
Thu, May 23 - Tue, May 28

Flights from Dulles Intl to Seattle - Travel Insights & Trends

Get data-powered insights and trends into flights from Dulles Intl to Seattle to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Washington Dulles Airport to Seattle?

The average price of all flights from Washington, D.C. Dulles Intl Airport to Seattle clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Seattle on a Wednesday and more expensive on a Sunday. On your return trip to Washington Dulles Airport, you should consider flying back on a Thursday, and avoid Mondays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Washington, D.C. Dulles Intl Airport to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Seattle is January, where tickets cost $257 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $588 and $538 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Washington, D.C. Dulles Intl Airport to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Seattle, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 26 days before departure.

Which airlines provide the cheapest flights from Washington Dulles Airport to Seattle?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, Sun Country Air offered the best one-way deal for that route, at $135. KAYAK users also found Washington Dulles Airport to Seattle round-trip flights on Alaska Airlines from $246 and on Delta from $277.

Which airlines fly most frequently between Washington Dulles Airport and Seattle?

Alaska Airlines connects Washington Dulles Airport to Seattle with up to 5 flights per day. United Airlines also offers 5 flights per day, while Delta follows with 2 flights per day.

Which airlines fly non-stop between Washington, D.C. Dulles Intl Airport and Seattle?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Washington, D.C. Dulles Intl Airport to Seattle.
There are 3 airlines that fly nonstop from Washington, D.C. Dulles Intl Airport to Seattle. They are: Alaska Airlines, Delta and United Airlines. The cheapest price of all airlines flying this route was found with Delta at $139 for a one-way flight. On average, the best prices for this route can be found at Delta.

How many flights are there between Washington, D.C. Dulles Intl Airport and Seattle per day?

Each day, there are between 12 and 14 nonstop flights that take off from Washington, D.C. Dulles Intl Airport and land in Seattle, with an average flight time of 5h 41m. The most common departure time is 7:00 am and most flights take off in the morning. Each week, there are 90 flights. The most frequent day of departure is Sunday, when 16% of all weekly flights depart. The fewest flights depart on a Tuesday.

Which cabin class options are there for flights between Washington, D.C. Dulles Intl Airport and Seattle?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Washington Dulles Airport to Seattle take?

The duration of a nonstop flight to Seattle from Washington Dulles Airport is typically 5h 30m. The journey crosses a distance of 2,299 miles.

What’s the earliest departure time from Washington Dulles Airport to Seattle?

Early birds can take the earliest flight from Washington, D.C. Dulles Intl Airport at 7:00 am and will be landing in Seattle at 9:30 am.

What’s the latest departure time from Washington Dulles Airport to Seattle?

If you prefer to fly at night, the latest flight from Washington, D.C. Dulles Intl Airport to Seattle jets off at 10:15 pm and lands at 12:59 am.

Good to know

Low season

January

High season

August

Cheapest flight

$114
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from Washington Dulles Airport to Seattle

When to book flights from Dulles Intl to Seattle

Are your dates flexible? Find out the best times to travel from Dulles Intl to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Seattle flights

  • How can I get from the Sea-Tac Airport (SEA) to my hotel in downtown Seattle?

    There are a few options to get you from the airport to your hotel in downtown Seattle. One option is the subway system that picks up passengers on the 4th floor of the parking garage. There are a couple of bus services at the Sea-Tac Airport. King County Metro travels to various parts of the city of Seattle while Sound Transit takes passengers to the outlining cities of Bellevue and Renton. The buses pick up by the subway station.

  • Where can I park my car long-term at the Washington Dulles Airport?

    Very close to the terminal, there is a parking garage and a terminal parking lot. There is also an economy lot a little further away. A shuttle service will take you from the economy lot to the main terminal of the airport.

  • What restaurants are at the Washington Dulles Airport?

    There are a couple of bars, a pizzeria, and a burger place where you can dine. Some well-known restaurants in this airport include Auntie Anne's, Carrabba's Italian Grill, Chick-Fil-A, and Jersey Mike's Subs.

  • What lounges are at these two airports?

    Both airports have lounges where you can enjoy some quiet time. These lounges also offer complimentary drinks and snacks. They are sponsored by airlines, credit card companies, or the airport. At the Washington Dulles Airport, there is a United Airlines, British Airways, and an Air France lounge. The Sea-Tac Airport has lounges affiliated with United Airlines, American Express, Delta Airlines, and Alaska Airlines.

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Seattle was $114 for a one-way ticket and $246 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Seattle?

    A passport is not required to fly from Washington Dulles Airport to Seattle.

  • Which airports will I be using when flying from Washington Dulles Airport to Seattle?

    Washington Dulles Airport and Seattle are both served by 1 main airport. You will leave Washington Dulles Airport from Washington, D.C. Dulles Intl and will be arriving at Seattle/Tacoma Intl.

  • Which airlines offer Wi-Fi service onboard planes from Washington Dulles Airport to Seattle?

    Alaska Airlines, American Airlines, Delta, and JetBlue offer inflight Wi-Fi service on the Washington Dulles Airport to Seattle flight route.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Seattle?

    The Boeing 737 MAX 9 is the aircraft model that flies most regularly on the Washington Dulles Airport to Seattle flight route.

  • Which airline alliances offer flights from Washington Dulles Airport to Seattle?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Washington Dulles Airport and Seattle, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Washington Dulles Airport to Seattle?

    There are nonstop flights from Washington Dulles Airport to Seattle on a daily basis.

  • Which is the best airline for flights from Washington, D.C. to Seattle, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Seattle are Alaska Airlines and Delta. With an average price for the route of $381 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $376 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from IAD to Seattle

  • Looking for a cheap flight? 25% of our users found flights on this route for $203 or less one-way and $363 or less round-trip.
  • You can book a nonstop flight from Washington Dulles Airport (IAD) to the Seattle-Tacoma International Airport (SEA). However, there are some flight routes that will require you to switch planes in either Salt Lake City, Dallas-Fort Worth, or San Francisco.
  • The Washington Dulles International Airport (IAD) has a simple layout. It has one main terminal that connects to four concourses from which departure and arrival flights are managed. To assist passengers with getting around, the airport is equipped with moving walkways, escalators, and elevators. It also has a people mover system that is known as the AeroTrain, it goes from one side of the airport to another.
  • The SEA underground makes it easy to get around the Seattle-Tacoma International Airport (SEA). This is a people mover system or tram that goes around the airport including the main terminal, the north terminal, the south terminal, and the four concourses.
  • There is lots to do and see at the Seattle-Tacoma International Airport. You can explore African culture in the Africa Lounge. Here you can enjoy African-inspired drinks and food. Throughout the year, the airport hosts live musical concerts. These concerts take place in the central terminal, in front of Sub Pop Records, and close to the children's play area.
  • Numerous rental car agencies have offices at the Sea-Tac Airport. This includes Budget, Dollar, Hertz, and Thrifty just to name a few. The rental car center is located offsite. However, there is a shuttle bus that will take you from the airport to the car rental lot.
See more tips

Prefer to fly non-stop from Washington Dulles Airport to Seattle?

Find which airlines fly direct from Dulles Intl to Seattle/Tacoma Intl, which days they fly and book direct flights.

Nonstop departures

Washington, D.C. Dulles Intl to Seattle/Tacoma Intl

Monday

Air Tahiti Nui, Alaska Airlines, Austrian Airlines, +12 more

Air Tahiti Nui, Alaska Airlines, +13 more

Tuesday

Air Tahiti Nui, Alaska Airlines, Austrian Airlines, +13 more

Air Tahiti Nui, Alaska Airlines, +14 more

Wednesday

Air Tahiti Nui, Alaska Airlines, Austrian Airlines, +12 more

Air Tahiti Nui, Alaska Airlines, +13 more

Thursday

Air Tahiti Nui, Alaska Airlines, Austrian Airlines, +13 more

Air Tahiti Nui, Alaska Airlines, +14 more

Friday

Air Tahiti Nui, Alaska Airlines, Austrian Airlines, +12 more

Air Tahiti Nui, Alaska Airlines, +13 more

Saturday

Air Tahiti Nui, Alaska Airlines, Austrian Airlines, +13 more

Air Tahiti Nui, Alaska Airlines, +14 more

Sunday

Air Tahiti Nui, Alaska Airlines, Austrian Airlines, +12 more

Air Tahiti Nui, Alaska Airlines, +13 more

See more direct flights

Nonstop returns

Seattle/Tacoma Intl to Washington, D.C. Dulles Intl

Monday

ANA, Air Tahiti Nui, Alaska Airlines, +13 more

ANA, Air Tahiti Nui, +14 more

Tuesday

ANA, Air Tahiti Nui, Alaska Airlines, +15 more

ANA, Air Tahiti Nui, +16 more

Wednesday

ANA, Air Tahiti Nui, Alaska Airlines, +13 more

ANA, Air Tahiti Nui, +14 more

Thursday

ANA, Air Tahiti Nui, Alaska Airlines, +15 more

ANA, Air Tahiti Nui, +16 more

Friday

ANA, Air Tahiti Nui, Alaska Airlines, +14 more

ANA, Air Tahiti Nui, +15 more

Saturday

ANA, Air Tahiti Nui, Alaska Airlines, +15 more

ANA, Air Tahiti Nui, +16 more

Sunday

ANA, Air Tahiti Nui, Alaska Airlines, +14 more

ANA, Air Tahiti Nui, +15 more

See more direct flights
See more direct flights

Top 5 airlines serving from Dulles Intl to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9137 reviews
7.3Food
8.6Crew
7.9Comfort
8.2Boarding
7.3Entertainment
Airline reviews

Overall good flight, smooth and on time and comfortable. Disappointing that food is not served and you can't purchase the snack packs on the plane.

8.0 ExcellentKristen, May 2024BOS - SEA
Read more about Alaska Airlines reviews

Overall good flight, smooth and on time and comfortable. Disappointing that food is not served and you can't purchase the snack packs on the plane.

There was a row with three women who were very loud - talking and laughing. In an open, outdoor setting that's fine. On an airplane, no. The flight attendants told the women they were the fun row. It took the woman sitting in the row ahead of the loud women to tell them they were too loud, but everyone in the general vicinity was irritated. I didn't think it would be possible to be so rowdy for so long. Then when we landed we weren't let off at a gate. We had to be bussed in and the bus contended with airline traffic. After dealing with the loud passengers, this was not what I was expecting. An incredibly disappointing experience with an airline that I have always regarded as one of the better ones.

They oversold my flight by 9 seats so when I went to check in I was not assigned a seat and the only one available if I didn’t want to chance it were 100 dollars more

Was not happy that we had to wait an additional 50 minutes for passengers that were still in TSA. This delay made us miss our connecting flight in Seattle to get home to tuck in our two little toddlers. We ran off the plane and ran across the entire airport trying to make this flight only to get to the gate to see that they have ended boarding. So they were willing to wait for passengers in Hawaii but not Seattle?? Especially when this wasn't even our fault. I expect to receive miles for missing our flight and spending an additional 4 hours in Seattle.

Better organizing of entry and exit onto the plane regarding all of the baggage people haul on. There should be a better system so those with no baggage can get in and out more quickly. The baggage haul-on situation is absurd.

It was a great experience, although our seat was taken and we did not want to be rude and ask the person to move. Flight Attendants need to make sure that people should be in their assign sitting that are paid for. Other then that, we had a great flying experience with Alaska Airlines.

Too many people with oversized carry-ons. Uncomfortable seats. flight was too crowded.

Assigned last seat in row Did not recline at all Alaska Air seemed to have more leg room than my last few flights on United Yay!

The WIFI didn't work well enough to get through even 5 minutes of a movie I had selected (it just kept pausing and spinning), and I just gave up and read a book. The selection of movies was a little sparse though, so reading wasn't that bad of an option. This was an older 737-800, with undersized overhead bins -- but it doesn't make sense to me that we are told to slide our bags in with the wheels facing us (most people ignore that and put the handles facing us). This makes it more difficult to remove the bags (no handle). The flight went well, and the fruit/cheese platter I pre-ordered was good -- although it is a little annoying to have to pre-order for this (but I suppose it saves time). When I pre-order it automatically gets charged to my personal credit card (Alaska VISA), when I'd prefer to use my corporate card for that on business trips.

It was our baby’s first flight and everything went perfect. The flight attendant gave him his first set of wings and we were smooth flying from there.

Delta is one of the best airlines I have flown

It was a Red-Eye flight so was not comfortable enough to sleep, but seat was as expected. Crew was great and in-flight entertainment was excellent. Flight was smooth

Standard economy seats on Deltas 767 were better than Alaska premium seats on their 737 MAX9; more legroom, wider seats. Entertainment was great, no ipad or phone required. Could have included a meal service.

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

The boarding process was terrible especially with an indirect flight Chicago to Seattle to San Diego was terrible talking about we overbooked a flight idk if I’d take this airline ever again we got off our flight from Chicago to Seattle and we traveled for business and they told us our connecting flight was over booked and their was no seats asking people to take a delayed next flight and they don’t tell anyone coughing to wear masks seats 30A-B were terrible during the flight no one wants to sit next to people coughing all around I don’t want to be sick traveling for work or get sick anytime it’s very upsetting the staff doesn’t take this stuff serious to tell them to wear masks when they see people coughing and sneezing

Flight was on time, the crew was personable & professional, & the plane arrived early which was nice.

This flight landed early, but deplaned late. We were stuck sitting and waiting for a gate for over an hour

My flight was very clean and the location was comfortable. The service was great. A satisfying flight!

I appreciated being upgraded. I was very disappointed with my 13 hr layover in Seattle to geg, while my friends who flew Alaska made it home as scheduled. I had to reserve a hotel on my dime.

Delta needs to step up the meals and snacks. They have been serving the same two meals for three years.... It is time to change it up.

they made me check my carryon. There was space in the overhead bins.

The plane was delayed 2 hours. The wifi did not work. The seat in first class was not comfortable because the bottom felt like it lost all of its padding. And I did not like when the flight attendant made me wait at my seat to use the bathroom and didn't tell me why. If there were too many people using the 1st Class bathroom, she should have told me to go in the back, coach bathrooms. I guess I have to feel fortunate that they found 2 local pilots to still fly the plane tonight after the original pilots ended up at an airport 60 miles away due to high winds.

The crew were really great, but the 4 hour delay in small chunks was the worst.

Our flight was delayed many times throughout the day. The final delay was about 8 hours. I spent time in line to speak to someone at their understaffed desk, and also spent time waiting online and then chatting with a service rep. None of the United employees were any help at all. I desperately wanted to go get rest and possibly re-book my trip but I was denied any compensation or voucher for a hotel. I was repeatedly told it was not United's fault and therefore they had no compensation to offer. Overall, a cold and callous experience.

Flight crew and pilots did great. Flight way delayed due to a part needing replacement. Based on what the pilot indicated- the maintenance crew could’ve resolved this more efficiently than replacing whole part- and taken less time

The most cramped seating I’ve ever experienced, (including budget airlines) with no food available for purchase on a nearly 6 hour flight.

Flight was canceled do to mechanical failure I lost my connection flight at to pay $2500.00 more to get 4 more tickets to fly to Ketchikan Alaska This was the worst experience I had flying. I thinks kayak should pay for my new ticket from Seattle to Ketchikan That may bring less pain from my trip Thanks Ilir

Just a crappy airline. The same every time. You feel you are a cow on a farm. You are being being whipped and pulled.

Wasn’t very crowded. Seamless processes. No issues traveling with two little kids.

My interaction with the flight attendent Eve was horrible. I was seated in 3F and was blown away watching her repeatedly skip me as she took other customer orders for lunch...she took the customer next to me but skipped me, then took everyone's order around me (in front of and behind me) . After she had taken every customer's orders to include those behind me, she came to me and said we are out of everything except one last item. I was mortified, in that, I am a 1k flyer, had pre-ordered AND as an African American could only assume why she repeatedly skipped me...mortified. no words

i suspect i caught flu on this flight as i could hear someone coughing a few rows back and ended up with flu a few days later. also tiresome to have to watch movies on my device by holding up smartphone screen, would have liked to have in seat display.

Overall the flights pretty good. The snacks we’re good and they were plenty of them. Both boarding and deplaning went quickly.

Delayed abs delayed Gate crew giving poor info - we are definitely leaving at —- Ultimately to cancel flight after 4+ hours of delays Just cancel it earlier

The flight was scheduled to depart DCA at 12:30 pm but was delayed twice on the ground so that we were finally scheduled to depart at around 4:00 pm. Once we boarded, it was announced that takeoff would be delayed again to fix a hydraulic problem which delayed our eventual takeoff until around 5:00 pm. Once we departed, it was a smooth flight back to ORD. We did not get any explanation about what caused the original significant delay. In my experience, this happens frequently with AA.

Lots of weather delays that were poorly communicated and managed. I get there are weather delays but they didn’t make it clear what was happening or comfortable on the plane

Everything was on time; the flight attendants and the gate personnel were very pleasant and helpful.

I had trouble finding a boarding pass because I had an hour between Flights and American did not see my flight I believe because I was ticketed through KAYAK. I did not have enough time to go to the desk before boarding so I went to the desk and told them while I was boarding and they had a boarding pass for me within three minutes. Nice. I paid extra to have more legroom and it is definitely worth it for a six hour flight. I would’ve paid for a decent dinner, but they didn’t offer anything but a snack box —not good for six hours.

Our second leg to Jackson WY was unable to land due to weather. We were flown back to Dallas after stopping in SLC. We were given hotel rooms and vouchers. We were told that we would be back on the same plane in the morning. Instead we were given a different flight with different seats. Not a good experience. No one knew what was going on.

Perfect flight. On time departure and early arrival. Smooth flight.

Awful! The flight was delayed and we sat on the plane in DCA for an hour because fuel was out in the wrong part of the plane and would not be accessible during flight. So the plane had to be refueled in correct tank. They also allowed someone to get off of the plane. This delayed my six hour flight by an hour and made me miss my connecting flight. I ran to new gate and American Airlines agents new about the delay and even knew that I was trying to make the connection. They knew thru communication with my friend while in flight that I was in the airport and running to the new gate and they still closed the gate and refused to let me on the new flight despite plane still being at the gate. It was horrible and I had to be rebooked on a flight for 24 hours later. This has been a nightmare and if American Airlines can cause customers to be delayed and then have zero empathy as having an on time flight was more important to them than helping a customer who was delayed by no fault of her own, then it's seems that it's not a company that I want to continue to give my loyalty to. I'm so disgusted.

Six hour delay. Poor customer service. No voucher. Bad communication. Missed important appointments.

Our flight was delayed an hour, then when we got to board our flight finally, we were waiting in our seats for take off for 45 minutes before it was communicated that there was a maintenance issue therefore we waited on the plane for over an hour while that was resolved. We did not get to Phoenix until almost 3 hours after we were originally supposed to. This was the first and last time I will be flying Frontier.

Flight was canceled with little warning. Flight was rebooked through Ontario, California and connecting flight was delayed by over three hours. Frontier is living up to their Greyhound of the skies reputation for sure.

I purchased a carry on bag online…was supposed to cost $72 but after a whole slew of bs charges, the total was over $175.00. Because of these hidden charges, I will not even consider flying Frontier ever again. It’s just not worth the hassle. I’m scratching this company off my list forever.

Flight was OK. Seats were good no cell phone charges on the plane no TVs or entertainment.

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

Flight cancelled and was told by a rude gate agent that they don’t accommodate on other airlines. Had to wait 5 hours for a connecting flight that had a 7 hour layover. Would not allow bags to be checked early so we couldn’t go through security .Had to rent a car for the afternoon to store bags and get a meal. Also incurred a hotel fee. No apology or reason given for the cancellation- just rudeness.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The process of buying the ticket and navigating all the hidden charges that Frontier throws at you was a terrible experience. The actual airport experience and flying was fine.

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

Book cheap flights from Washington, D.C. to Seattle

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Washington, D.C. to Seattle found on KAYAK in the last 72 hours.
6/4Tue
2 stops
23h 27mIAD-SEA
$114
6/4Tue
2 stops
23h 27mIAD-SEA
$118
6/4Tue
nonstopAlaska Airlines
5h 30mIAD-SEA
$139
9/3Tue
1 stopAmerican Airlines
8h 11mIAD-SEA
$143
8/31Sat
1 stopAmerican Airlines
9h 06mIAD-SEA
$144
5/31Fri
nonstopAlaska Airlines
5h 30mIAD-SEA
$145
6/4Tue
1 stopUnited Airlines
9h 31mIAD-SEA
$148
5/30Thu
1 stopUnited Airlines
9h 31mIAD-SEA
$154
5/28Tue
nonstopDelta
5h 46mIAD-SEA
$169
6/6Thu
nonstopDelta
5h 49mIAD-SEA
$199

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Last minute flights from Dulles Intl to Seattle

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Washington, D.C. to Seattle that are departing in the next 10 days.
5/9Thu
multi-stopSun Country Air
29h 45mIAD-SEA
5/11Sat
multi-stopSun Country Air
14h 52mSEA-IAD
$426
5/9Thu
multi-stopSun Country Air
29h 45mIAD-SEA
5/15Wed
multi-stopSun Country Air
14h 02mSEA-IAD
$447
5/7Tue
multi-stopAmerican Airlines
9h 06mIAD-SEA
5/21Tue
multi-stopAmerican Airlines
8h 32mSEA-IAD
$548
5/7Tue
multi-stopAmerican Airlines
10h 14mIAD-SEA
5/15Wed
multi-stopAmerican Airlines
8h 32mSEA-IAD
$573
5/7Tue
nonstopDelta
5h 45mIAD-SEA
5/21Tue
nonstopDelta
5h 09mSEA-IAD
$613
5/7Tue
multi-stopAlaska Airlines
10h 17mIAD-SEA
5/21Tue
nonstopAlaska Airlines
5h 12mSEA-IAD
$622
5/5Sun
multi-stopAlaska Airlines
21h 23mIAD-SEA
5/6Mon
nonstopAlaska Airlines
4h 56mSEA-IAD
$632
5/9Thu
nonstopDelta
5h 45mIAD-SEA
5/12Sun
nonstopDelta
5h 03mSEA-IAD
$639
5/7Tue
nonstopUnited Airlines
5h 48mIAD-SEA
5/10Fri
multi-stopUnited Airlines
10h 47mSEA-IAD
$708
5/7Tue
nonstopUnited Airlines
5h 48mIAD-SEA
5/17Fri
multi-stopUnited Airlines
6h 51mSEA-IAD
$717

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Washington Dulles Airport - Seattle Flights

Departure:

Washington Dulles Airport (IAD)United States

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Washington Dulles Airport

Cabin classes:

$557
$618
$700
$215