Alaska's Premium Class includes priority boarding and complimentary drinks on flights over 350 miles.
Alaska Airlines' 20-minute baggage guarantee offers a discount code or miles if delayed.
Planning a trip from Seattle to Dulles Intl? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.
Low season | February |
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High season | December |
Cheapest flight | $156 |
Direct departures
Seattle/Tacoma Intl to Washington, D.C. Dulles Intl
Monday
Alaska Airlines, Delta, United Airlines
Alaska Airlines, Delta, +1 more
Tuesday
Alaska Airlines, Delta, United Airlines
Alaska Airlines, Delta, +1 more
Wednesday
Alaska Airlines, Delta, United Airlines
Alaska Airlines, Delta, +1 more
Thursday
Alaska Airlines, Delta, United Airlines
Alaska Airlines, Delta, +1 more
Friday
Alaska Airlines, Delta, United Airlines
Alaska Airlines, Delta, +1 more
Saturday
Alaska Airlines, Delta, United Airlines
Alaska Airlines, Delta, +1 more
Sunday
Alaska Airlines, Delta, United Airlines
Alaska Airlines, Delta, +1 more
Direct returns
Washington, D.C. Dulles Intl to Seattle/Tacoma Intl
Monday
Alaska Airlines, Delta, United Airlines
Alaska Airlines, Delta, +1 more
Tuesday
Alaska Airlines, Delta, United Airlines
Alaska Airlines, Delta, +1 more
Wednesday
Alaska Airlines, Delta, United Airlines
Alaska Airlines, Delta, +1 more
Thursday
Alaska Airlines, Delta, United Airlines
Alaska Airlines, Delta, +1 more
Friday
Alaska Airlines, Delta, United Airlines
Alaska Airlines, Delta, +1 more
Saturday
Alaska Airlines, Delta, United Airlines
Alaska Airlines, Delta, +1 more
Sunday
Alaska Airlines, Delta, United Airlines
Alaska Airlines, Delta, +1 more
All flights were on time. No crowded and had empty seats. All flight attendents were great.
All flights were on time. No crowded and had empty seats. All flight attendents were great.
Flight was delayed as it always is with Alaska airlines. Particularly to smaller airports. No AC on the plane so it was miserably hot.
Slow boarding and the flight crew hit me with the food cart
It was very nice flight going to Seattle and coming back to Omaha. Even got in early. Very easy to check in using the Alaska Airlines App. Thank you.
They offer the only direct flight from Seattle to Pittsburgh.
Seattle airport is a mess. New bag tag system has potential, but you need more signage to guide passengers through the process as to where to go next. Told to go in one direction and then met with a very rude agent when we did. He blamed his attitude on all the folks flying over labor day that were paying his salary. Gate area for D3 is a mess compared to the North terminal. Overall Alaska is number 1 in my book.
After we boarded there was quite a long time before we actually took off, and there were no announcements from crew about why we were delayed. Later when they did make announcements they were largely inaudible. There was no food (other than for purchase) on the flight and no entertainment. Thats not a complaint, just explaining my ratings in those categories. The flight was smooth. Baggage claim was rapid.
The airline staff was great! The best safety review ive ever had!
Agent boarding us in San Diego lectured me on showing up on time for the flight, and said that if I had been three minutes later, he would have denied myself and my wife boarding. Our trusted traveler numbers were not in the system, even though I entered them when I bought the tickets. Our food orders were not in the system, even though I entered them prior to the flight. My wife requires a wheelchair, and that was delayed on both flights.
Why was I charged for a glass of wine on one flight and not on another? Why no movie or TVs? It was a long flight.
Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.
Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.
Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.
Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.
Delta made it easy, comfortable and timely. The crew was fantastic.
This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one
Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate
Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.
Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.
The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,
First class ticket. They ran out of food and I sat hungry watching the others eat
They we able to seat my companion and I next to each other. Plane’s temperature was very cool. Willl be more prepared on return trip.
All was good and they were able to seat my travel companion next to me. Thank you.
Like the ample leg room. May as well not bother with snacks if it's only a two ounce bag of pretzels. Didn't use the entertainment option. Was there one?
What an amazing flight. I haven’t experienced this level of service in a flight in years. This will be the only way to fly to Hawaii for me in the future.
Kayak sold me a ticket after check in time. Could not check in. Could not get on flight.
Love you guys are so friendly and kind and wonderful
Agents talk too fast over intercom. I know it’s memorized and we’ve all heard it before. Just slow down a little. Stop charging for checked bags. I was pleased to get my bags promptly at each end of my flight.
Everything was great except having to check in at Alaska. That was a surprise and took extra time and effort. Should have been explained somewhere maybe on the HA electronic ticket.
It was clean and the crew was great. I wish the chairs could recline just a little more and you would provide small pillows for people with bad backs. My back is fused and a little support would be great.
IAD with the archaic people movers is just a place to be avoided.
Overall, it was good. I was seating next to a wonderful lady and did not notice how time flew. Thanks
This is the best united airlines flight that I took. The crew was very friendly and the food was tasty!
It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.
Had one staff that was not pleasant. Seems they are stressed with too many people to care for.
I would have liked an opportunity to move to a different seat ( even would have checked in my hand luggage)as I had health issues where I didn't have to clamber over the passenger next to me to for toilet use/ movement [ She was a highly unpleasant neighbor to sit next to]. In addition, I found that my European phone plan had run out of data and so I was not receiving emails from yourselves on airport wifi to be able to check in online and verifications difficult as did not accept the ticket number I had. I asked for an extra blanket but was told there was none. Then I saw other passengers receiving them. I couldn't eat the food and asked for snacks : Stewardess said " on the way" but they did not bring. The best bit was the check in process in Lisbon. Very efficient. However, I did not understand why we had to collect our bags at Washington then go through customs again. It was not explained. I also with my leg and health issue had approximately mile walk to the gate ( which then changed) . There appeared to be no moving walkways or help provided.
The attendant were friendly. I suggest you have a medical attendant on board every flight so that in case someone is sick , he/she will help them.
We had a very long diversion and our food voucher didn’t work because the restaurants were closed
United airlines, mediocre at best. No issues , nothing great . Worked for me
Turbulent taking off & landing to Dulles from Raleigh. Flight from Dulles to Tokyo very good!!
Dreadful experience. Our flight was delayed more than 8 hours due to a maintenance issue and the assistance from rebooking was poor. I was travelling with a bad knee and needed assistance waited in one place more than 3 hours before someone came with a wheelchair. The woman next to me was a 91 year old great grandmother who had waited more than 4 hours. There were moments of support from the staff but it appeared as they were going against the direction of management. It was apathy, lack of ownership and dismissive responses with small moments of kindness and understanding typically from grey haired, female, veteran staff..
After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"
Initial flight was cancelled at the time of arrival to the airport, flight alternative requires switching from direct to flight with a layover, and the plane felt like it would split apart, it was so rattle-y.
Weather delay for 2.5 hours followed by half hour crew delay, did not have ginger ale, uncomfortable seats
It was nobody’s fault - but the plane came 4-hrs late and we were updated randomly in 20-30 mins increments which left us hostage to sit and wait expectantly. It was very long and got very late. Our plane didn’t land until nearly 1 am! Also the toilet wasn’t working. The hosts were nice enough but were clearly “about to pass out” as one told me. Lastly, there was no snack or even time for it. Just a bad experience overall.
The boarding crew was incredibly helpful getting me on an earlier flight
Everything was great except it became so hot on the plane I couldn’t sleep on my red eye flight. It didn’t really cool down till we started descending.
Great experience. Flight boarded easily. Departed early. Smooth flight. Great arrival in DC--almost no taxing! Almost direct to gate from runway. Crew was terrific. Same cookies and beverages in main cabin. I did not use the entertainment system on this flight.
Flight delayed on both ends - have a gate ready at DCA, don't make us sit for 30min after being late to take off as well.
AA can't control the weather. But the airplane was hot and stuffy while stuck on the runway with a broken entertainment system.
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