WAS - SEL

$535 Find Cheap Flights from Washington, D.C. to Seoul

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to Seoul departing on 8/27. 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
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Seoul

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Seoul.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Seoul.
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Everything you should know

Cheapest round-trip
$1,084
Typical prices: $1,803-$1,100
Turkish Airlines
Wed 10/21Tue 10/27
IAD - ICN • 1 stop
Cheapest non-stop
$1,201
Typical prices: $2,086-$1,186
AIR PREMIA
Mon 5/4Sun 5/10
IAD - ICN • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Dulles has a convenient Silver Line Metro to downtown.
The AREX Express train from ICN reaches Seoul in 40 mins.
Expert advice
Expert advice
Expert advice
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Top airlines
Cheapest • from $1,084 (round-trip)
Best reviews • 8.4 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
+1
Top layover airports
Cheapest • Avg $197 (round-trip)
Shortest trip • 7h 30m (one-way)
Insights
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Insights
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Top routes
Cheapest
Most popular
Insights
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When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 43% compared to booking last minute.
Insights
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When to travel
Cheapest • 76% price drop
Most popular
Good to know
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Flight Deals
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Flight Deals

Cheap Flights from Washington, D.C. to Seoul (WAS-SEL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to Seoul 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington, D.C. to Seoul

Wed, Oct 21 - Tue, Oct 27
Turkish Airlines Logo
1:20 pm - 8:35 am
IAD
-
ICN
30h 15m
1 stop
Turkish Airlines Logo
12:10 am - 12:45 pm
ICN
-
IAD
25h 35m
1 stop
$1,084Turkish Airlines
Sun, Oct 25 - Thu, Oct 29
Turkish Airlines Logo
2:30 pm - 6:20 pm
IAD
-
ICN
38h 50m
1 stop
Turkish Airlines Logo
12:10 am - 12:45 pm
ICN
-
IAD
25h 35m
1 stop
$1,107Turkish Airlines
Mon, Oct 26 - Thu, Nov 12
Turkish Airlines Logo
2:30 pm - 9:05 am
IAD
-
ICN
29h 35m
1 stop
Turkish Airlines Logo
12:10 am - 11:45 am
ICN
-
IAD
25h 35m
1 stop
$1,116Turkish Airlines
Mon, Sep 14 - Mon, Sep 28
AIR PREMIA Logo
1:20 pm - 5:55 pm
IAD
-
ICN
15h 35mnonstop
AIR PREMIA Logo
10:00 am - 10:50 am
ICN
-
IAD
13h 50mnonstop
$1,131AIR PREMIA
Mon, Sep 28 - Tue, Oct 13
EVA Air Logo
1:15 am - 6:45 pm
IAD
-
ICN
28h 30m
1 stop
EVA Air Logo
7:45 pm - 10:00 pm
ICN
-
IAD
39h 15m
1 stop
$1,139EVA Air
Wed, Sep 2 - Tue, Nov 3
EVA Air Logo
1:15 am - 12:50 pm
IAD
-
GMP
22h 35m
1 stop
EVA Air Logo
7:00 pm - 8:55 pm
GMP
-
IAD
39h 55m
1 stop
$1,139EVA Air
Wed, May 20 - Fri, Jun 5
Multiple Airlines Logo
9:13 pm - 9:40 pm
BWI
-
ICN
35h 27m
2 stops
Multiple Airlines Logo
7:35 pm - 6:28 am
ICN
-
BWI
23h 53m
1 stop
$1,186Multiple Airlines
Thu, May 28 - Fri, Jun 5
Multiple Airlines Logo
6:10 am - 9:40 pm
BWI
-
ICN
26h 30m
2 stops
Multiple Airlines Logo
7:35 pm - 6:28 am
ICN
-
BWI
23h 53m
1 stop
$1,207Multiple Airlines
Tue, Sep 15 - Wed, Oct 14
American Airlines Logo
5:00 am - 3:45 pm
DCA
-
ICN
21h 45m
1 stop
American Airlines Logo
5:50 pm - 11:00 pm
ICN
-
DCA
18h 10m
1 stop
$1,342American Airlines
Thu, Sep 3 - Tue, Nov 3
American Airlines Logo
5:00 am - 3:45 pm
DCA
-
ICN
21h 45m
1 stop
American Airlines Logo
6:35 pm - 11:00 pm
ICN
-
DCA
18h 25m
1 stop
$1,343American Airlines
Booking Insights

KAYAK's insights & trends for Washington, D.C. to Seoul flights

Get data-powered insights and trends into flights from Washington, D.C. to Seoul to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Washington, D.C. to Seoul?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. to Seoul departing in October.

What is the cheapest Washington, D.C. to Seoul flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Washington, D.C. to Seoul costs $710 on the route between Washington, D.C. Dulles Intl Airport (IAD) and Incheon Intl Airport (ICN). It is also the most popular route.

What’s the cheapest day of the week to fly from Washington, D.C. to Seoul?

The average price of all round-trip flights from Washington, D.C. to Seoul clicked on KAYAK for each day over the last 12 months.

For Washington, D.C. to Seoul, Tuesday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Seoul back to Washington, D.C., the best deals are generally found on Friday, with Thursday being the most expensive.

What is the cheapest month to fly from Washington, D.C. to Seoul?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. to Seoul, 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. to Seoul is October, where tickets cost $197 (return) on average. On the other hand, the most expensive months are May and June, where the average cost of round-trip tickets is $3,319 and $2,475 respectively.

Can I save money by flying with a layover from Washington, D.C. to Seoul?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $1,666, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Washington, D.C. to Seoul?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. to Seoul, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. to Seoul, you should book around 4 weeks before departure, which saves you about 43% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Expert advice

Expert advice for your flight from Washington, D.C. to Seoul

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Robert Schrader

Robert Schrader

Expert on ICN

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Stefanie Waldek

Stefanie Waldek

Expert on IAD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Good to know

Low seasonJanuary
Cheapest flight$535
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly with an average 4% increase in price.
Flight from Baltimore to Seoul Incheon Airport

When to book flights from Washington, D.C. to Seoul

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Seoul 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 flights from Washington, D.C. to Seoul

  • What documentation do I need to fly from Washington, D.C. (IAD) to Seoul (ICN)?

    The most crucial document you will need is a valid passport. Your passport should be valid for at least six months beyond your intended stay in South Korea. South Korea has visa-free arrangements with many countries, including the United States. U.S. citizens visiting South Korea for tourism or business purposes are generally allowed to stay for up to 90 days without a visa.

  • Which airlines flying from Washington, D.C. (IAD) to Seoul (ICN) consider dietary needs?

    Korean Air offers special meal options such as vegetarian, vegan, gluten-free, and kosher. United Airlines also offer a range of special meals, including vegetarian, vegan, gluten-free, lactose-free, and diabetic-friendly options. Passengers can request these special meals in advance during the booking process or by contacting the airline directly.

  • Can I upgrade to first class on Japan Airlines for my flight from Washington D.C. to Seoul?

    JAL has a loyalty program called JAL Mileage Bank, where members can earn miles and use them to upgrade their seats, subject to availability and specific rules and conditions. Additionally, JAL offers the option of purchasing an upgrade to first class using cash. Depending on availability, this can be done at the time of booking or during check-in.

  • How can I get downtown from Incheon International Airport (ICN)?

    One popular method is to take the Airport Railroad Express (AREX), which provides both an Express Train and an All-Stop Train. The Express Train offers a non-stop journey to Seoul Station, a central transportation hub, in about 43 minutes. The All-Stop Train makes multiple stops along the way, taking approximately 53 minutes to reach Seoul Station. Both options offer plenty of seating and designated spaces for luggage storage.

  • What is the cheapest flight from Washington, D.C. to Seoul?

    In the last 3 days, the lowest price for a flight from Washington, D.C. to Seoul was $565 for a one-way ticket and $1,084 for a round-trip.

  • Do I need a passport to fly between Washington, D.C. and Seoul?

    Yes

  • Which airports will I be using when flying from Washington, D.C. to Seoul?

    When flying out of Washington, D.C. you will be using one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You will be landing at one of these airports: Seoul Gimpo Intl or Incheon Intl.

  • Which airlines offer Wi-Fi service onboard planes from Washington, D.C. to Seoul?

    Only American Airlines offers inflight Wi-Fi service on the Washington, D.C. to Seoul flight route.

  • Which aircraft models fly most regularly from Washington, D.C. to Seoul?

    The Boeing 777-300ER is the aircraft model that flies most regularly on the Washington, D.C. to Seoul flight route.

  • Which airline alliances offer flights from Washington, D.C. to Seoul?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Washington, D.C. and Seoul, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Washington, D.C. to Seoul?

    There are nonstop flights from Washington, D.C. to Seoul on a daily basis.

  • Which is the best airline for flights from Washington, D.C. to Seoul, Korean Air or AIR PREMIA?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Seoul are Korean Air and AIR PREMIA. With an average price for the route of $1,982 and an overall rating of 8.4, Korean Air is the most popular choice. AIR PREMIA is also a great choice for the route, with an average price of $1,463 and an overall rating of 8.1.

  • How does KAYAK find such low prices on flights from Washington, D.C. to Seoul?

    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, D.C. to Seoul.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Seoul?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seoul from Washington, D.C. 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, D.C. to Seoul?

    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 Seoul with an airline and back to Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Seoul?

    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 Seoul from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Washington, D.C. to Seoul

  • Looking for a cheap flight? 25% of our users found flights on this route for $559 or less one-way and $1,112 or less round-trip.
  • If you want a place to relax before your trip from Washington D.C. to Seoul (ICN), Dulles Airport (IAD) features the Air France-KLM Lounge in Concourse A. This lounge is open to Air France and KLM passengers and SkyTeam Elite Plus members up to three hours before departure. The lounge offers pre-flight dining, power outlets and USB ports, showers, and a work area.
  • Can a minor travel unaccompanied from Washington, D.C., to Seoul? ANA Airlines has a service called ANA Junior Pilot that is mandatory for children between the ages of 5 and 11 years traveling alone. The guardian needs to provide the child’s passport, completed consent forms, and contact details. The service ensures that staff assist the child from check-in, during the flight, and upon arrival at the destination.
  • SkyTeam Alliance is a popular choice if you are looking for flight alliances when traveling from Washington D.C. (IAD) to Seoul (ICN). With Airlines such as Korean Air and Delta Air Lines, you can access loyalty programs and earn redeemable miles, seamless travel for those in maritime and offshore industries, and flexible flight schedules.
  • You will most likely have layovers in Boston Edward L Logan International, John F Kennedy International, and Tokyo International Airport if you are traveling with All Nippon Airways (ANA) or Japan Airlines (JAL). Other Airlines, such as Cathay Pacific and United Airlines, may connect through Hong Kong.
  • If you are committed to sustainability, various airline options exist from Washington to Seoul. ANA has placed a strong emphasis on sustainability, aiming to be one of the world’s leading eco-friendly airlines. They have implemented measures to reduce CO2 emissions, such as fleet modernization, operational efficiency improvements, and the use of sustainable aviation fuel. ANA also actively promotes recycling and waste reduction.

Reviews of the top 5 airlines serving from Washington, D.C. to Seoul

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Seoul. 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 Washington, D.C. to Seoul? 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.
8.4
Korean AirOverall score based on 1216 reviews
8.5Boarding
8.7Crew
8.3Comfort
8.2Entertainment
8.1Food
Airline reviews

Always on time and flight crew were great. Boarding in Manila was a bit chaotic and disorganized compared to Incheon.

10.0 ExcellentOmer, Mar 2026
MNL - ICN
Read more Korean Air reviews

Always on time and flight crew were great. Boarding in Manila was a bit chaotic and disorganized compared to Incheon.

Never had a flight delay issue with Korean Air, that's why I always go with this airline.

Flight crew were very attentive and made this trip a pleasure. Plus the fact that this our first time flying business class.

The boarding process was efficient and quick. The seats were comfortable. The food was good. The service was excellent. We had a lovely flight from Seattle on Korean air

Flight crew was fantastic. The aircraft was meticulously cleaned at all times. The crew was continuously checking to see if the passengers were ok.

Korean are so racist and when I ask question or directions they totally ignore me and say racist. Also they give me an rude attitude.

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

Friendly flight attendants and gate agents. Very clean plane and food was good!

I normally love Korean Air, but this trip was not great. We boarded the plan and were settling into our seats. My son and I use these leg swings and we used it on the trip over to Cambodia, but on the way back the flight attendant very rudely told us we could not use it and that it was against regulations. I asked to see the regulation, but never saw it. The food on this trip was horrible as well, Even my son's kids meal was disgusting so we didn't eat anything on the flight. Thankfully we brought snacks. Entertainment - what happened to the games?

This was an amazing flight. The crew was great. The service was great. The food provided was great.

Don't splurge for the Premium Wide Economy. They compare it to business class. This is not business class, and the seats are very uncomfortable.

For the second meal, the different food choices ran out both times so we were only offered one.

Seating was good in the economy with plenty of leg room. The seat cushions were a little firm though, especially for such a long flight. All meals were Korean as would be expected. The food was typical airline quality. Edible, but not something you would recommend to friends. Inflight entertainment was also all Korean but Korean tv and movies are made well and you can find something to watch. Just be prepared to read subtitles. Overall it was a good flight, especially for the price.

The crews were friendly, professional and courteous. Checking in was easy and smooth. The best part is, as we all know, the price.

The person in front of me was rude. He may came from some communism countries and don’t care of other people. No common manner and sense between human being.

Very nice staff, airplanes, and an excellent value in premium economy.

Food quality is poor. Flight attendants are very friendly and professional.

I flew on Zip Air on the way to Asia so I can compare. The two airlines are night and day. Air Premia was so amazing compared to Zip Air. I have flown Korean Air in the past and I honestly don’t know the difference between Air Premia and the “non-budget” airlines. My Air Premia flight provided me two bags whereas I had to pay for Zip Air. On my under 11 hour flight, we were provided two full meals! The flight attendants were so kind and polite.

For the price, the overall experience was what I expected. The prices were fair and competitive, the staff friendly and more responsive than other airlines, and seating spacious. The downside was food portion size, but I'll gladly pay a few dollars more for the hot noodles or other supplemental snacks, given the more affordable ticket prices. I don't mind the absence of Hollywood movie programming if that leads to inflated ticket prices. Wi-Fi worked well. In addition to spacious seating for the Wide Premiium, I'd suggest foot rests to complement the calf rests. There're problems with booking Air Premia tickets at the home website. The underlying app engine won't process non-Korean credit cards, which is a major oversight, probably hurting the company's bottom line. I can go to Kayak or a third-party website to book Air Premia tickets, but it's an awkward work-around when other airlines don't have to resort to this tactic.

As it's a budget airline it's pretty basic. But the quality of crew and plane is excellent.

The flight was operated by Latam. The aircraft had a technical issue and the flight was delayed for the next day. They grounded other passengers to get their airplane assigned to my flight. Most of he ground staff don't speak English (Orlando Airport), but were very polite.The crew on the other hand could speak English and Portuguese. On board service was good.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

United Airline crews were very friendly and very attentive. 12 hours flight was gone like in a shorter one.

Vegetarian selection could be better. Bread was too hard to chew.

Crew was friendly and competent. Food, wine, and entertainment were excellent except the raw tuna on the flight to Split. Recommend against serving that - at least as the only option. Many medical conditions do not allow people to eat raw fish.

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

shittiest airline in the hemisphere. To improve - start thinking you're flying people, not cattle

Easy boarding, inflight refreshments came on time and comfortable seat

It was good that our flight left early. It was a nice smooth flight and landing.

All good……but luggage didn’t make it on the airplane. Had to wait 3 days. Was a bummer.

Small suitcase used for carryon the last time was refused by boarding crew this time. Appears to be at the discretion and mood of the person on the day. Flight was only half booked, there would have been no problem with space.

It was a problem because there was a delay where we sat before taking off from newark,then when landed in Toronto we sat on tarmac and they wouldn't let us out for a long period of time. When we finally were released to the airport in Toronto the attendant scanned our boarding pass that we were here for our connection to Brazil. We ran all the way to the gate and they said at the gate the door is shut so we can not let you on the plane. We explained that we were checked in by the attendant when we arrived at Toronto airport to go to Brazil and they should not have shut the door. We were ignored at the gate

Flight home was delayed multiple times, did not get home until 2am

I checked a bag and there was only one agent to assist all customers with any issues.

Super experience. Earlier than schedule departure and arrival. Baggage handling was very good

Plane left an hour late, I missed my connection and my bow case was never even loaded on the plane in VA. I deal with this type of nonsense everytime I fly air canada.

Everything you need to know for your flight from Washington, D.C. to Seoul

Cabin class types available on flights from Washington, D.C. to Seoul

Cabin classes available on flights from Washington, D.C. to Seoul. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.