$437 Find Cheap Flights from Washington, D.C. to South Korea

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 South Korea departing on 11/19. 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.
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1 adult, Economy, 0 bags

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Cheap Flights from Washington, D.C. to South Korea

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Seoul
Incheon1 stop$1,033
Jeju City
Jeju City3 stops$3,197
Busan
Busan2 stops$1,439
Seoul
Incheon1 stop$1,033
Jeju City
Jeju City3 stops$3,197
Busan
Busan2 stops$1,439

Book Cheap Washington, D.C. to South Korea Plane Tickets

 
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 South Korea 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 South Korea

Mon, Dec 1 - Wed, Dec 10
Multiple Airlines Logo
1:30 pm - 9:05 amIAD-ICN
29h 35m1 stop
Multiple Airlines Logo
6:55 pm - 5:30 pmICN-IAD
36h 35m2 stops
$1,033Multiple Airlines
Find Deal
Wed, Dec 10 - Sat, Dec 13
Multiple Airlines Logo
1:00 pm - 5:10 amDCA-ICN
26h 10m2 stops
Multiple Airlines Logo
1:20 pm - 8:00 pmICN-DCA
20h 40m1 stop
$1,034Multiple Airlines
Find Deal
Thu, Feb 26 - Wed, Mar 4
Turkish Airlines Logo
9:15 pm - 6:20 pmIAD-ICN
31h 05m1 stop
Turkish Airlines Logo
10:45 am - 7:20 pmICN-IAD
46h 35m1 stop
$1,036Turkish Airlines
Find Deal
Tue, Apr 21 - Wed, Jul 1
United Airlines Logo
6:31 pm - 4:20 amBWI-ICN
20h 49m1 stop
United Airlines Logo
4:50 pm - 5:52 amICN-BWI
26h 02m1 stop
$1,122United Airlines
Find Deal
Sun, Mar 15 - Wed, Mar 25
United Airlines Logo
5:14 pm - 4:40 amBWI-ICN
22h 26m2 stops
United Airlines Logo
11:45 am - 9:42 pmICN-BWI
22h 57m2 stops
$1,126United Airlines
Find Deal
Sat, Feb 21 - Sun, Mar 8
Delta Logo
5:25 pm - 4:50 pmBWI-ICN
33h 25m1 stop
Delta Logo
7:25 pm - 12:11 amICN-BWI
17h 46m1 stop
$1,127Delta
Find Deal
Thu, Mar 26 - Sun, Apr 5
Delta Logo
2:10 pm - 3:50 pmBWI-ICN
36h 40m1 stop
Delta Logo
4:25 pm - 12:11 amICN-BWI
20h 46m1 stop
$1,128Delta
Find Deal
Sun, Jan 11 - Tue, Feb 3
American Airlines Logo
3:41 pm - 4:45 pmBWI-ICN
35h 04m1 stop
American Airlines Logo
7:15 pm - 11:10 pmICN-BWI
17h 55m1 stop
$1,130American Airlines
Find Deal
Fri, Mar 27 - Sat, Apr 11
Korean Air Logo
7:00 am - 8:45 pmBWI-PUS
24h 45m2 stops
Korean Air Logo
4:30 pm - 3:41 pmPUS-BWI
36h 11m2 stops
$1,497Korean Air
Find Deal
Sat, Mar 28 - Sat, Apr 4
Korean Air Logo
5:30 pm - 6:20 pmBWI-PUS
35h 50m2 stops
Korean Air Logo
4:30 pm - 3:41 pmPUS-BWI
36h 11m2 stops
$1,504Korean Air
Find Deal
Booking Insights

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

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

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

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

The cheapest ticket to South Korea from Washington, D.C. found in the last 72 hours was to Seoul, at $1,071 round-trip. The most popular route is from Washington, D.C. Dulles Intl Airport (IAD) to Incheon Intl Airport (ICN), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $1,071.

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

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 South Korea, 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 South Korea is January, when tickets cost $959 (return) on average. On the other hand, the most expensive months are June and August, when the average cost of round-trip tickets is $1,850 and $1,710 respectively.

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

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

If you are looking for a flight deal from Washington, D.C. to South Korea, look for departures on Tuesdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from South Korea, Sunday is the cheapest day to fly and Thursday is the most expensive.

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

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 South Korea, 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 South Korea, you should book around 3 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Low seasonAugust
Cheapest flight$423
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 27% increase in price.
Flight from Baltimore to Seoul Incheon Airport

FAQs - booking South Korea flights

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

    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 South Korea.

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

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

    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 from Washington, D.C. to South Korea with an airline and back 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 South Korea?

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

  • What is the cheapest time of day to fly to South Korea?

    The cheapest time of day to fly to South Korea is generally at night, when round-trip flights cost $1,075 on average. Morning departures are around 5% more expensive than evening flights, on average. The most expensive time of day to fly to South Korea is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,636.

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

 
Need help choosing which airline to fly with from Washington, D.C. to South Korea? 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 1163 reviews
8.3Comfort
8.7Crew
8.5Boarding
8.1Food
8.2Entertainment
Airline reviews

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

10.0 ExcellentVivian, Nov 2025SEA - ICN
Read more Korean Air reviews

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.

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!

Plenty of leg room, temperature was great and staff was excellent. Would do it more often.

The ticket agents in West Palm Beach on Friday afternoon Nov. 7th were incredible in getting us on an earlier plane to Atlanta during the government shutdown. Had the taken our original flight we would have missed our connection. She did this on her own, We didn't even have to ask, and she did it all with a smile and showing genuine concern that we would be taken care of. We are very grateful and thankful. We fly often, and now we will be sure to fly Delta.

Flight delayed then cancelled. Misplaced luggage. Still do not have. Rented car 1100 mile drive. I had to buy some overnight Hotels clothes toiletries gas food at my expense. Still not home. Not sure where luggage is. Over 4 hours on hold to Felta

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

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.

we landed at cmh ten minutes early but had to sit on tarmac for twenty minutes because a plane was at our gate despite the fact that 3 other gates were open.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

I have a gluten allergy so did have any food

I have a gluten allergy so didn't have any food

Loved the crew . Absolutely no complaints. Except for luggage lost

Everything was good The connects, with no blame to crew. Or pilots. I understand they are short staffed. Everything went well for me. I'll be using you guys again in May if not sooner.

this plane was really old, had exit row seats and tray was in arm of seat so super uncomfortable to use. another seat they could t even use the tray it was broke. seat i. front of me had duct tape on it cause seat was ripped open... this plane should either be updated or retired.

We were very rushed by a staff member at the gate when transferring from American Airlines to Fijian. Then the plane stayed put for ages anyhow! The plane was delayed and my bag sent to San Francisco instead of Fiji

Baggage handling poor. Second time this has happened. My bag went to San Francisco instead of Fiji. No apology. Luckily Nadi airport staff are fantastic. My bag arrived in Fiji the next day.

Flight delay was communicated before leaving for airport which caused it to be a non-event. Great flight and crew!

Over 40 years ago my AC return flight was canceled, during this last summer the same thing happened. AC denied everything Canadian like paying for accommodations and basic necessities. So why would I ever want to fly AC again? This last flight my wife took the return flight had problems and left late, so I guess they are getting better. However I have no faith in this airline so I drove to this last destination! I'll never fly AC again!!!

Great check in process in LA and good service The check in process as well as at the gate is way better in the US versus canada 🇨🇦

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

Allow me to book extra bag check in as free though I packed in 1 luggage but that was 7 LBS overweight so make another bag to free check in.

I would like to get my money back. I flight was 4 hours late on the way to detroit, And same on my way back to Brussels they cancelled my flight and give me an other ticket and i had to wait 5 hours.

All attendents were very efficient, pleasant and happy. Everything went smoothly. The seats could have been wider. There could have been more free food instead of just one small bar.

My seat was one of those that couldn't recline, but the problem was that it was abnormally upright, so the headrest actually made the seat concave, which was uncomfortable and hard on my lower back. I had to ball my jacket up and use it as lumbar support. goodness I had it with me.

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.

Check in agent was very helpful and polite. He helped me board the earlier flight back home instead of waiting 2 hours at the airport for the next flight

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 South Korea

Cabin class types available on flights to South Korea

Cabin classes available on flights to South Korea. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.