Find Cheap Flights from Seattle/Tacoma Intl to Washington Dulles Intl (SEA - IAD)

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Seattle/Tacoma Intl to Washington Dulles Intl Flight Information

Avg. Flight Duration 5h 25m
Flights Arrive in Washington Dulles Intl
Flights Depart from Seattle/Tacoma Intl
Flight Price $217
Distance 2,300 miles
Airlines United Airlines, Delta, Alaska Airlines, American Airlines, JetBlue, Major Airline

Good to Know

Low Season:
January
Best time to beat the crowds
2%
expected price decrease
High Season:
July
Most popular time to fly
9%
expected price increase
Average Price:
$368
(avg. price over the last 2 weeks)
Good Deal:
$260
or less (round trip)

When to Book Flights from Seattle/Tacoma Intl to Washington Dulles Intl

Estimated round-trip price
Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top Tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $260 or less.
The cheapest flight from Seattle/Tacoma Intl to Washington Dulles Intl was found 32 days before departure, on average.
Book at least 2 weeks before departure in order to get a below-average price.
High season is considered to be June, July and August. The cheapest month to fly is January.
Morning departure is around 6% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Seattle/Tacoma Intl to Washington Dulles Intl Flights

How long does a flight from Seattle/Tacoma Intl to Washington Dulles Intl take?
An average nonstop flight takes 4h 40m, covering a distance of 2300 miles.
How many flights are there between Seattle/Tacoma Intl and Washington Dulles Intl?
There are 335 (nonstop) flights between Seattle/Tacoma Intl and Washington Dulles Intl per week, averaging 50 per day.
Which airlines provide the cheapest flights from Seattle/Tacoma Intl to Washington Dulles Intl?
In the past 3 days, the cheapest round-trip tickets were found on United Airlines ($217), Delta ($217) and Alaska Airlines ($237).
Do I need a passport to fly between Seattle/Tacoma Intl and Washington Dulles Intl?
No.
Which airlines fly most frequently between Seattle/Tacoma Intl and Washington Dulles Intl?
United Airlines (9 times daily), Lufthansa (4 times daily), Copa Airlines (3 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Seattle/Tacoma Intl to Washington Dulles Intl?
For Seattle/Tacoma Intl to Washington Dulles Intl, Tuesday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Washington Dulles Intl back to Seattle/Tacoma Intl, the best deals are generally found on Tuesday, with Wednesday being the most expensive.

Book cheap flights from Seattle/Tacoma Intl to Washington Dulles Intl (round-trip)

Airports
Origin
Seattle
$217
only
$217
Destination
Washington
$217
only
$217
Tue, Dec 4
SEA
Seattle/Tacoma Intl
IAD
Washington Dulles Intl
4h 40m
Tue, Dec 11
IAD
Washington Dulles Intl
SEA
Seattle/Tacoma Intl
5h 48m
Trip: 8 days
6.6GoodShow reviews
Overall 6.6 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
SEA
IAD
Good 6.3

Pros: Seat was comfortable but little leg room.

Cons: Difficult to find outlets between seats.

SEA
IAD
Excellent 10.0

Pros: Rhe food

Cons: Custmer Service

SEA
IAD
Good 7.6

Cons: Wish the free in flight entertainment was available on the United app for this flight

SEA
IAD
Good 7.0

Pros: Poor internet going. No internet or streaming returning.

Cons: Poor internet going. No internet or streaming returning.

SEA
IAD
Okay 4.6

Pros: The first leg of my journey was on time, a little early, even.

Cons: The second leg was delayed, and the flight crew seemed confused about why. The chairs on the planes were quite uncomfortable, and gave all three of my party some kind of bodily pain.

Tue, Dec 11
SEA
Seattle/Tacoma Intl
IAD
Washington Dulles Intl
4h 54m
Sat, Jan 19
IAD
Washington Dulles Intl
SEA
Seattle/Tacoma Intl
5h 59m
Trip: 40 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 21,422 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
BUF
LGA
Excellent 9.3

Pros: Excellent flight with efficient service. Flight was on time and friendly staff

Cons: Efficiency

TYS
ATL
Mediocre 2.0

Cons: Sat on the tarmac for 20 Minutes, after taking off late. Arrived to my connecting gate 10 Minutes prior to scheduled departure with no delta attendants in sight and watched my plane sit at the gate and pull away with no way to get on board. Now I’m waiting unnecessarily for 4 hours on another flight.

MSP
MCO
Excellent 8.6

Pros: Almost everything

Cons: Could not get entertainment interface with my tablet to work, especially since I paid extra to do so. Could not access live TV on my seat/chair screen.

CDG
ATL
Good 6.3

Pros: Food quality was above average (compared to Air France, for instance). On-board entertainment system offers a lot of movies or tv series, assuming it is in working order.

Cons: A negative point for the entertainment system is the variety of movies - all US based movies. Other airlines mix in foreign movies, Delta is squarely US centric. Also, the entertainment system didn't properly work until rebooted, but flight attendants could not be contacted to get this done timely (cannot call attendants through a non-functional screen). Another concern is the noise level of the cabin, but it's mostly due to passengers.

JFK
SEA
Excellent 10.0

Pros: Boarded and left JFK on time and arrived 15 minutes early to Seattle. Love DELTA.

Thu, Dec 6
SEA
Seattle/Tacoma Intl
IAD
Washington Dulles Intl
4h 47m
Wed, Dec 12
IAD
Washington Dulles Intl
SEA
Seattle/Tacoma Intl
6h 10m
Trip: 7 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 47 reviews
Overall
8.6
Boarding
8.6
Comfort
8.3
Crew
8.9
Entertainment
7.9
Food
7.9
SEA
IAD
Excellent 9.3

Pros: Alaska Airlines had a very comfortable flight with great attendants and power to charge all your devices.

Cons: The wifi service was really poor. I paid 49.99 for Gogo and I got the service of less than a 56.k modem.

SEA
IAD
Excellent 8.3

Pros: Friendly and calm professionals in the "assistance" line. The ticket kiosk did not recognize my confirmation number or name so I was instructed to wait in the assistance line and I was furious- swore I'd never fly with Alaska again- but then the ticket agent was fantastic, calm and helpful and helped put me in a better mood. Overall flight was great. Felt safe, hardly any turbulence and friendly flight staff. Flight was on time. No delays.

Cons: No screens on the back of seats with free entertainment. I don't like paying extra for entertainment. I wish you had good vegan food options.

SEA
IAD
Excellent 8.6

Pros: The crew was extremely pleasant and genuinely accommodating. (and USB ports on every seat?!

Cons: No cash-handling for meals and services... (but that's my fault for assuming it would be cash only).

SEA
IAD
Excellent 10.0

Pros: I loved the free chat and free entertainment! It made such a long flight go so much better and goodbyes and travel easier knowing that I could communicate on the go! For someone with social anxiety, being able to talk to loved ones when I was going through things was the best experience ever! Thank you so much!

SEA
IAD
Excellent 8.6

Pros: Yes, they My have lost it but they delivered it to make up for the mistakes.

Mon, Dec 3
SEA
Seattle/Tacoma Intl
IAD
Washington Dulles Intl
19h 30m
Wed, Dec 12
IAD
Washington Dulles Intl
SEA
Seattle/Tacoma Intl
6h 10m
Trip: 10 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Dec 12
SEA
Seattle/Tacoma Intl
IAD
Washington Dulles Intl
7h 43m
Sat, Jan 19
IAD
Washington Dulles Intl
SEA
Seattle/Tacoma Intl
6h 09m
Trip: 39 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 35,156 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.8
Food
6.7
SFO
MIA
Okay 4.6

Cons: There was a noise as if the seatbelt signs were turning off and on. As you can imagine that became extremely annoying.

MAD
PHL
Excellent 10.0

Pros: Roomy seats excellent service good food

Cons: Need better choices of movies

LHR
CLT
Excellent 9.3

Pros: Efficient and very nice crew. Great flight overall- Pilot pointed out when we were passing Greenland for an excellent aerial picture.

LGA
DCA
Excellent 10.0

Pros: On time and quick boarding.

PHL
PBI
Excellent 10.0

Pros: I had enough legroom. Airplane arrived a bit early to destination.

Cons: I did not find out until I looked at the boarding pass that our flight time was changed. We had to miss a family function to go to the airport sooner than expected.

Tue, Dec 4
SEA
Seattle/Tacoma Intl
IAD
Washington Dulles Intl
8h 55m
Wed, Dec 12
IAD
Washington Dulles Intl
SEA
Seattle/Tacoma Intl
10h 28m
Trip: 9 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 14,460 reviews
Overall
8.2
Boarding
8.3
Comfort
8.3
Crew
8.6
Entertainment
8.0
Food
7.8
BOS
PHL
Excellent 10.0

Pros: Loved the foot space and TV availability. Great food selection. Pleasant staff!

LAX
JFK
Excellent 9.0

Cons: Crew member was rude

BUF
JFK
Good 7.3

Pros: Everything about the flight operated smooth and comfortably. Efficient boarding, surprised and delighted to have inflight entertainment for such a short flight where most other airlines use older planes without tv/movies.

Cons: did my pre flight check in at about 3pm for my 8:50pm flight. I didnt immediately receive my boarding pass via text but figured it’d come in the next 4hrs. It didn’t and I had to go through the line for a paper pass, then at about 11pm when I was already home after my flight I received the text containing my boarding pass. Obviously a simple hiccup in an automated process but laughably pathetic in terms of delivering a simple service for paying customers that’s designed to save you, JetBlue, time and money

SFO
JFK
Okay 4.0

Cons: The plane was 2 hours late with no explanation and no apology until we were getting off the plane.

BUF
JFK
Mediocre 2.0

Cons: I was not on it

Thu, Nov 29
SEA
Seattle/Tacoma Intl
IAD
Washington Dulles Intl
7h 05m
Sun, Dec 9
IAD
Washington Dulles Intl
SEA
Seattle/Tacoma Intl
5h 52m
Trip: 11 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Dec 5
SEA
Seattle/Tacoma Intl
IAD
Washington Dulles Intl
4h 51m
Sat, Dec 8
IAD
Washington Dulles Intl
SEA
Seattle/Tacoma Intl
5h 50m
Trip: 4 days
6.6GoodShow reviews
Overall 6.6 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
SEA
IAD
Okay 5.6

Pros: I had nice people sitting beside me. Not too bumpy.

Cons: Kind of cramped. Too many screaming babies. A lot of traffic to the restroom. Couldn't put up the arm rest on the window side.

SEA
IAD
Okay 4.6

Pros: The first leg of my journey was on time, a little early, even.

Cons: The second leg was delayed, and the flight crew seemed confused about why. The chairs on the planes were quite uncomfortable, and gave all three of my party some kind of bodily pain.

SEA
IAD
Good 6.3

Pros: Seat was comfortable but little leg room.

Cons: Difficult to find outlets between seats.

SEA
IAD
Mediocre 3.6

Cons: Gate crew didn't help much with seating or connecting flights. Staff almost never smiled, and when boarding the plane instead of a, "hello" or "good morning", there were two attendants staring at their phones. They looked up when I greeted first, but seemed put off a touch. They also switched the seating without telling us ahead of time, so my husband and I had to sit in middle seats, apart from each other on our anniversary trip. Very unhelpful and unfriendly when I inquired to change.

SEA
IAD
Good 7.6

Cons: Wish the free in flight entertainment was available on the United app for this flight

Wed, Dec 12
SEA
Seattle/Tacoma Intl
IAD
Washington Dulles Intl
4h 54m
Wed, Jan 16
IAD
Washington Dulles Intl
SEA
Seattle/Tacoma Intl
6h 01m
Trip: 36 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 21,422 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
DTW
ATL
Okay 5.3

Pros: Delta flights are usually on time and the staff is always polite and helpful

Cons: Both my departure and arrival flight were delayed and I was not please with delay.

SAN
LAX
Good 7.3

Pros: Delta was OK

Cons: Lack of attention by the fly stuard in Virgin Australia Virgin had a 45´delay

ATL
SFO
Good 6.0

Pros: Transfer f from first flight leg

Cons: Food and the 757 lay out

SEA
BOI
Good 6.6

Cons: 20 minutes late

MCO
CVG
Excellent 8.6

Pros: Cincinnati airport was clean and efficient

Cons: MCO airport gate was a mess and did not have easy access to charge phones.

Sat, Dec 8
SEA
Seattle/Tacoma Intl
IAD
Washington Dulles Intl
4h 40m
Wed, Dec 12
IAD
Washington Dulles Intl
SEA
Seattle/Tacoma Intl
6h 10m
Trip: 5 days
6.6GoodShow reviews
Overall 6.6 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
SEA
IAD
Excellent 10.0

Pros: Rhe food

Cons: Custmer Service

SEA
IAD
Okay 4.0

Pros: The boarding was quick and the flight was on time. The crew was courteous.

Cons: I selected economy comfort in the kayak app, but when I called about my boarding pass, kayak said they only sell basic economy. What did I buy? UAL only sells a limited selection of overpriced food. There is no music and you have to pay to see the flight map.

SEA
IAD
Good 6.3

Pros: Seat was comfortable but little leg room.

Cons: Difficult to find outlets between seats.

SEA
IAD
Good 7.6

Cons: Wish the free in flight entertainment was available on the United app for this flight

SEA
IAD
Good 7.0

Pros: Poor internet going. No internet or streaming returning.

Cons: Poor internet going. No internet or streaming returning.

Tue, Jan 8
SEA
Seattle/Tacoma Intl
IAD
Washington Dulles Intl
4h 53m
Wed, Jan 16
IAD
Washington Dulles Intl
SEA
Seattle/Tacoma Intl
6h 09m
Trip: 9 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 21,422 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
SMF
MSP
Excellent 10.0

Pros: Everything

Cons: Nothing

TYS
ATL
Mediocre 2.0

Cons: Sat on the tarmac for 20 Minutes, after taking off late. Arrived to my connecting gate 10 Minutes prior to scheduled departure with no delta attendants in sight and watched my plane sit at the gate and pull away with no way to get on board. Now I’m waiting unnecessarily for 4 hours on another flight.

SEA
BOI
Good 6.6

Cons: 20 minutes late

CDG
ATL
Good 6.3

Pros: Food quality was above average (compared to Air France, for instance). On-board entertainment system offers a lot of movies or tv series, assuming it is in working order.

Cons: A negative point for the entertainment system is the variety of movies - all US based movies. Other airlines mix in foreign movies, Delta is squarely US centric. Also, the entertainment system didn't properly work until rebooted, but flight attendants could not be contacted to get this done timely (cannot call attendants through a non-functional screen). Another concern is the noise level of the cabin, but it's mostly due to passengers.

MSP
MCO
Excellent 8.6

Pros: Almost everything

Cons: Could not get entertainment interface with my tablet to work, especially since I paid extra to do so. Could not access live TV on my seat/chair screen.

Mon, Dec 10
SEA
Seattle/Tacoma Intl
IAD
Washington Dulles Intl
19h 30m
Tue, Dec 11
IAD
Washington Dulles Intl
SEA
Seattle/Tacoma Intl
5h 48m
Trip: 2 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Feb 22
SEA
Seattle/Tacoma Intl
IAD
Washington Dulles Intl
7h 32m
Sat, Feb 23
IAD
Washington Dulles Intl
SEA
Seattle/Tacoma Intl
11h 52m
Trip: 2 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 35,156 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.8
Food
6.7
MAD
PHL
Excellent 10.0

Pros: Roomy seats excellent service good food

Cons: Need better choices of movies

MIA
JFK
Good 6.0

Pros: Flight was late, food gave me diarrhea o

Cons: Old plane

LHR
ORD
Excellent 8.0

Cons: We were not able to board on this plane because we were late. We were not able to board the BA because the plane was late; taking off we have to wait for at least 30-45 minutes

MIA
LGA
Excellent 8.3

Cons: Captain didnt I form us of turbulence . There was so much and he never said anything.

LHR
CLT
Excellent 9.3

Pros: Efficient and very nice crew. Great flight overall- Pilot pointed out when we were passing Greenland for an excellent aerial picture.

Sun, Dec 2
SEA
Seattle/Tacoma Intl
IAD
Washington Dulles Intl
4h 53m
Sun, Dec 9
IAD
Washington Dulles Intl
SEA
Seattle/Tacoma Intl
6h 00m
Trip: 8 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 47 reviews
Overall
8.6
Boarding
8.6
Comfort
8.3
Crew
8.9
Entertainment
7.9
Food
7.9
SEA
IAD
Excellent 8.6

Pros: The crew was extremely pleasant and genuinely accommodating. (and USB ports on every seat?!

Cons: No cash-handling for meals and services... (but that's my fault for assuming it would be cash only).

SEA
IAD
Excellent 8.3

Pros: Friendly and calm professionals in the "assistance" line. The ticket kiosk did not recognize my confirmation number or name so I was instructed to wait in the assistance line and I was furious- swore I'd never fly with Alaska again- but then the ticket agent was fantastic, calm and helpful and helped put me in a better mood. Overall flight was great. Felt safe, hardly any turbulence and friendly flight staff. Flight was on time. No delays.

Cons: No screens on the back of seats with free entertainment. I don't like paying extra for entertainment. I wish you had good vegan food options.

SEA
IAD
Excellent 8.0

Cons: Chargers didn't work on either flight

SEA
IAD
Excellent 10.0

Pros: The staff was really friendly, easy boarding, great fast baggage claim. overall great!

SEA
IAD
Excellent 9.6

Pros: Our flight attendants were fantastic.

Cons: The application I had to download had cookies.

Wed, Jan 9
SEA
Seattle/Tacoma Intl
IAD
Washington Dulles Intl
4h 50m
Tue, Jan 22
IAD
Washington Dulles Intl
SEA
Seattle/Tacoma Intl
5h 59m
Trip: 14 days
6.6GoodShow reviews
Overall 6.6 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
SEA
IAD
Good 6.3

Pros: Seat was comfortable but little leg room.

Cons: Difficult to find outlets between seats.

SEA
IAD
Okay 4.6

Pros: The first leg of my journey was on time, a little early, even.

Cons: The second leg was delayed, and the flight crew seemed confused about why. The chairs on the planes were quite uncomfortable, and gave all three of my party some kind of bodily pain.

SEA
IAD
Okay 4.6

Pros: Extremely tight fit. Much much smaller than other major airlines . Both flight attendants were rude. Not looking dorward to flying back home with united Option to rent movies is really nice though. Helps the flight go by faster .

SEA
IAD
Good 7.6

Cons: Wish the free in flight entertainment was available on the United app for this flight

SEA
IAD
Good 7.0

Pros: Poor internet going. No internet or streaming returning.

Cons: Poor internet going. No internet or streaming returning.

Wed, Feb 6
SEA
Seattle/Tacoma Intl
IAD
Washington Dulles Intl
4h 53m
Tue, Feb 19
IAD
Washington Dulles Intl
SEA
Seattle/Tacoma Intl
6h 09m
Trip: 14 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 21,422 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
JFK
SEA
Excellent 10.0

Pros: Boarded and left JFK on time and arrived 15 minutes early to Seattle. Love DELTA.

SMF
MSP
Excellent 10.0

Pros: Everything

Cons: Nothing

MSP
MCO
Excellent 8.6

Pros: Almost everything

Cons: Could not get entertainment interface with my tablet to work, especially since I paid extra to do so. Could not access live TV on my seat/chair screen.

SAN
LAX
Good 7.3

Pros: Delta was OK

Cons: Lack of attention by the fly stuard in Virgin Australia Virgin had a 45´delay

MCO
CVG
Excellent 8.6

Pros: Cincinnati airport was clean and efficient

Cons: MCO airport gate was a mess and did not have easy access to charge phones.

Mon, Dec 3
SEA
Seattle/Tacoma Intl
IAD
Washington Dulles Intl
4h 47m
Sun, Dec 9
IAD
Washington Dulles Intl
SEA
Seattle/Tacoma Intl
6h 00m
Trip: 7 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 47 reviews
Overall
8.6
Boarding
8.6
Comfort
8.3
Crew
8.9
Entertainment
7.9
Food
7.9
SEA
IAD
Excellent 8.3

Pros: Friendly and calm professionals in the "assistance" line. The ticket kiosk did not recognize my confirmation number or name so I was instructed to wait in the assistance line and I was furious- swore I'd never fly with Alaska again- but then the ticket agent was fantastic, calm and helpful and helped put me in a better mood. Overall flight was great. Felt safe, hardly any turbulence and friendly flight staff. Flight was on time. No delays.

Cons: No screens on the back of seats with free entertainment. I don't like paying extra for entertainment. I wish you had good vegan food options.

SEA
IAD
Excellent 8.6

Pros: Yes, they My have lost it but they delivered it to make up for the mistakes.

SEA
IAD
Good 6.0

Cons: Wifi didn't work. Very dissappointing.

SEA
IAD
Excellent 10.0

Pros: I loved the free chat and free entertainment! It made such a long flight go so much better and goodbyes and travel easier knowing that I could communicate on the go! For someone with social anxiety, being able to talk to loved ones when I was going through things was the best experience ever! Thank you so much!

SEA
IAD
Excellent 9.3

Pros: Usually we fly United on a direct flight to PDX. That flight is no longer available so we chose Alaska to Seattle. Their entertainment and internet actually works making them a better option than United. Flights were on time, crew was friendly, and the aircraft was clean. No complaints with Alaskan, and actually happy to change airlines after years of being with United even though it is not a direct flight to our destination.

Fri, Feb 22
SEA
Seattle/Tacoma Intl
IAD
Washington Dulles Intl
7h 32m
Sun, Feb 24
IAD
Washington Dulles Intl
SEA
Seattle/Tacoma Intl
6h 00m
Trip: 3 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 35,156 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.8
Food
6.7
SFO
MIA
Okay 4.6

Cons: There was a noise as if the seatbelt signs were turning off and on. As you can imagine that became extremely annoying.

LHR
ORD
Good 6.0

Cons: It was United not american and it was ok

LGA
DCA
Excellent 10.0

Pros: On time and quick boarding.

MIA
LGA
Excellent 8.3

Cons: Captain didnt I form us of turbulence . There was so much and he never said anything.

MIA
JFK
Good 6.0

Pros: Flight was late, food gave me diarrhea o

Cons: Old plane

Mon, Dec 3
SEA
Seattle/Tacoma Intl
IAD
Washington Dulles Intl
19h 30m
Thu, Dec 13
IAD
Washington Dulles Intl
SEA
Seattle/Tacoma Intl
6h 10m
Trip: 11 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jan 15
SEA
Seattle/Tacoma Intl
IAD
Washington Dulles Intl
4h 43m
Wed, Jan 30
IAD
Washington Dulles Intl
SEA
Seattle/Tacoma Intl
6h 01m
Trip: 16 days
6.6GoodShow reviews
Overall 6.6 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
SEA
IAD
Okay 4.6

Pros: The first leg of my journey was on time, a little early, even.

Cons: The second leg was delayed, and the flight crew seemed confused about why. The chairs on the planes were quite uncomfortable, and gave all three of my party some kind of bodily pain.

SEA
IAD
Okay 4.0

Cons: The plane was delayed in WA DC and the staff did nothing to help with transfers in Addis Ababa and I missed my connection.

SEA
IAD
Okay 5.0

Pros: Cramped seatting, minimal food or beverage options and we were invited to provide our own entertainment. Pretty typical flight for ten or fifteen years ago. The crew was extremely pleasant. Very surprising and maybe the only saving grace.

Cons: The airline is clearly trying to maximize profits by squeezing any comfort from the plane while still charging ludicrous amounts. Good for them. That's their free market choice. But do not then be startled that everyone is angry before, during, and after your flights. In the long run that's how you shed customers.

SEA
IAD
Good 6.3

Pros: Seat was comfortable but little leg room.

Cons: Difficult to find outlets between seats.

SEA
IAD
Okay 4.0

Pros: The boarding was quick and the flight was on time. The crew was courteous.

Cons: I selected economy comfort in the kayak app, but when I called about my boarding pass, kayak said they only sell basic economy. What did I buy? UAL only sells a limited selection of overpriced food. There is no music and you have to pay to see the flight map.

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Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.