WAS - SEL

$301 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 11/17. 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

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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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

Mon, Oct 27 - Mon, Nov 10
 Logo
5:35 am - 5:20 amBWI-ICN
34h 45m1 stop
 Logo
9:25 pm - 7:19 pmICN-BWI
35h 54m2 stops
Sun, Nov 16 - Sun, Dec 7
 Logo
8:26 pm - 4:10 pmBWI-ICN
29h 44m1 stop
 Logo
8:35 pm - 7:19 pmICN-BWI
36h 44m2 stops
Thu, Sep 25 - Wed, Oct 22
Air Canada Logo
9:35 am - 4:15 pmIAD-ICN
17h 40m1 stop
Air Canada Logo
5:45 pm - 9:05 pmICN-IAD
40h 20m2 stops
$940Air Canada
Find Deal
Sat, Oct 4 - Fri, Oct 10
Air Canada Logo
5:15 pm - 4:05 pmIAD-ICN
33h 50m2 stops
Air Canada Logo
5:45 pm - 9:38 amICN-IAD
28h 53m2 stops
$944Air Canada
Find Deal
Thu, Nov 20 - Mon, Nov 24
Turkish Airlines Logo
1:30 pm - 9:05 amIAD-ICN
29h 35m1 stop
Turkish Airlines Logo
12:10 am - 11:45 amICN-IAD
25h 35m1 stop
$1,011Turkish Airlines
Find Deal
Thu, Feb 12 - Tue, Feb 24
Turkish Airlines Logo
1:30 pm - 9:05 amIAD-ICN
29h 35m1 stop
Turkish Airlines Logo
12:10 am - 7:15 pmICN-IAD
33h 05m1 stop
$1,018Turkish Airlines
Find Deal
Mon, Nov 17 - Mon, Nov 24
China Eastern Logo
12:11 pm - 11:00 amIAD-GMP
32h 49m2 stops
China Eastern Logo
8:50 pm - 7:08 pmGMP-IAD
36h 18m2 stops
$1,021China Eastern
Find Deal
Wed, Oct 29 - Tue, Nov 4
China Eastern Logo
6:05 am - 3:20 pmDCA-ICN
44h 15m2 stops
China Eastern Logo
8:55 am - 6:00 pmICN-DCA
23h 05m2 stops
$1,050China Eastern
Find Deal
Sat, Nov 15 - Fri, Nov 21
Japan Airlines Logo
6:00 am - 10:05 pmBWI-GMP
50h 05m2 stops
Japan Airlines Logo
7:40 pm - 7:07 pmGMP-BWI
37h 27m2 stops
$1,267Japan Airlines
Find Deal
Thu, Nov 27 - Tue, Dec 2
Japan Airlines Logo
6:00 am - 10:55 amBWI-GMP
38h 55m2 stops
Japan Airlines Logo
7:40 pm - 4:46 pmGMP-BWI
35h 06m2 stops
$1,306Japan Airlines
Find Deal

Everything you should know

Our travelers' advice
AI-generated summary based on content written by travel experts
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
Expert advice
Top routes
IAD-ICN
Cheapest
IAD-ICN
Most popular
Insights
Insights
Insights
Insights
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 31% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 29% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$708
Overall average: $1,199
Multiple Airlines
Mon 10/27Mon 11/10
BWI - ICN • 1 stop
Cheapest non-stop
$1,664
Typical prices: $1,656-2038
Delta
Thu 11/20Thu 11/27
IAD - ICN • Non-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Seoul!
Expert advice

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

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airports
IAD

Dulles offers a convenient Silver Line Metro connection to downtown D.C., taking about 50 minutes. Ideal for international travelers heading to Seoul.

Read more about IADby Stefanie Waldek
ICN

For a quick transfer to Seoul, take the AREX Express train from ICN, reaching Seoul Station in 40 minutes. It's faster than buses or taxis.

Read more about ICNby Robert Schrader
Our travel experts
Robert Schrader

Robert Schrader

Expert on ICN

Robert Schrader

Robert Schrader

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.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on IAD

Stefanie Waldek

Stefanie Waldek

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.

Read more
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?

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 $878 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, Wednesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Seoul back to Washington, D.C., the best deals are generally found on Saturday, 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 January, where tickets cost $959 (return) on average. On the other hand, the most expensive months are June and August, where the average cost of round-trip tickets is $1,815 and $1,710 respectively.

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 3 weeks before departure, which saves you about 31% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low seasonAugust
Cheapest flight$301
Best time to beat the crowds but there is an average 26% increase in price.
Most popular time to fly and prices are also 9% lower on average.
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 $301 for a one-way ticket and $708 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 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?

    SkyTeam is the only airline alliance operating flights between Washington, D.C. and Seoul.

  • 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 Delta?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Seoul are Korean Air and Delta. With an average price for the route of $1,838 and an overall rating of 8.4, Korean Air is the most popular choice. Delta is also a great choice for the route, with an average price of $1,309 and an overall rating of 7.9.

  • 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 $548 or less one-way and $1,102 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 1139 reviews
8.5Boarding
8.3Comfort
8.7Crew
8.2Entertainment
8.1Food
Airline reviews

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.

8.0 ExcellentMatt, Aug 2025ATL - ICN
Read more Korean Air reviews

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.

I was unable to select decent seats, and so I was stuck in the middle seat because it was selected for me

Korean air has a little bit more seating space than Asiana air.

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

Stingy on the drinks - 15 hour direct flight and could barely get attention for some water

Unfortunately, there has been a boarding and departure delay. However, as usual, the flight arrived earlier than the scheduled. There has been a turbulence in-between, it’s unavoidable. I couldn’t complain them.

Not many people, so you can lay down on two seats

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

The food was terrible especially for a 15 hour international flight. The crew was unpleasant as well.

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.

Quick check in. Everything went smooth. I don't know what can be done about airline food.

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

Nothing special. The crew never went out of their way for anything.

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

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

We were given vouchers we couldn’t use with a 5.5 hour delay

I fly UAL 7-8 times per year. This flight was not up to snuff because it boarded very late "due to unexpected delays in restocking the plane" and yet Flight Aware showed the plane had landed some 10 hours earlier--so I think they could have planned accordingly. The FA's were nice but harried. The video system had to be rebooted 3-4 times. The food service was rather abrupt; they forgot my row and when I asked for my meal, they brought it with some impatience. Overall, the flight was fine, but the little details made it feel somewhat mundane and hurried.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

Given it’s a red-eye into Charolotte, we didn’t get any food. The survey does not include “N/A” so the rating will be skewed.

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

American airlines suck they delay the flights all the time made me sleep in an airport because my flight was delayed and I miss my connecting flight

There's nothing I liked about it. For first off I scheduled this trip two weeks in advance then they delayed my flight which messed up my whole trip. So I scheduled it for the following weekend thinking there won't be a delay and guess what as soon as I got to the airport we said in the airplane on the tarmac for an hour and a half. Not only was it delayed I missed my connecting flight meaning I had to stay the night at Dallas-Fort Worth airport sleeping on the floor. I will tell you this I will never fly American airlines ever again I have had nothing but horrible experience with them and I just throw money at them

The stewardess hit me with the food kart twice on the head and didn't say I'm sorry once. The same stewardess gave me a warm Apple Juice with No ice. The Flight was delayed for Departure 6 times, starting from 2:36pm, finally taking off 7:50pm. I was late picking up my child from the sitter by 3 hours.

Don’t know they cancelled the flight day before I was to leave. They sent a email at 9:00 pm at night saying they cancelled. That is the smooth way to say we don’t want your business! I think they didn’t have enough people booking so they cancelled the flight! It’s all about the money anymore there is no honesty in business.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

We fly American Airlines quite a bit. And we always fly business class when traveling internationally. We were a bit disappointed with the comfort of this particular plane as well as the entertainment options.

The AA staff person who checked our bags was curt and almost rude. The FA also seemed unhappy doing her job. Overall it was like riding the school bus back in grade school.

They are still charging me after taking 466 and 833 for round trip from AR to to Bradley airport from 19 to 21. Then poor experience. Am hurt and I will say it on social media. Please stay away from this airline. I see in my bank account they are still taking 644. Am trying to stop it. I used to fly United airlines and I suggest that if you don't want extra charges and good service you go back there. American airlines delayed my flight again and I was late for my meeting, no recompensation but charging me over and over.

For the price, it was a really good experience. There was no entertainment on board, so I couldn't really rate this, and I didn't order a meal. I appreciated that there was a free glass of wine.

Short flight. Everything was fine except the flight was delayed twice for a total of an hour.

My flight from New York to Canada and Canada to Brisbane was canceled, so I had to take united airlines instead flight from New York to Dubai then layover in Dubai 8 hours then from Dubai to Brisbane it was extremely difficult for me , it was a nightmare flying with Canadian airlines unfortunately.

I found the boarding easy and my seat was very comfortable as I had a lot of leg room. I am not too happy that I no longer have lounge access even though I used to get it with my TD credit card.

Flight cancelled. Major disruption to our travel. Do not use Air Canada from KC. To few flights.

Real smooth and easy, Real good leg room in coach!

There labor disputes cancelled my flight less than 24 hours before my boarding time but there customer service/website was easy enough to navigate and they rebooked me for no upcharge.

Re luggage I carried a backpack only. I did not check any bags in. However there were other passengers with carry on luggage going in the plane. My question is why are others allowed to have a carry on luggage inside the plane? Shouldn’t they have dropped it off at the gate? I’m asking because I could have brought the same thing instead of a backpack only. Please clarify for future reference. Thank you.

Like the service. Very hard to communicate or contact when have problems

Our flight was canceled at the last minute. Someone on the flight said the exact same thing happened to her the day before. I will say they helped us book a flight on another airline so that we could still make our vacation with little delay.

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.

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