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$517+ Cheap flights from Washington, D.C. (WAS) to South Korea

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — ICN
Jun 13 — Jun 201
Sat 6/13
Sat 6/20
1 adult, Economy
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Cheap flight deals from Washington, D.C. to South Korea

Cheapest flights from Washington, D.C. to South Korea
Explore the most affordable flight options available from Washington, D.C. to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 14, 2026.

This FlightHub deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/161:20 pm
IAD
-
ICN
Nonstop15h 35m
AIR PREMIA
Wed 9/2310:00 am
ICN
-
IAD
Nonstop13h 50m
AIR PREMIA
Deal found 5/11$1,065
This oojo deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/212:20 pm
IAD
-
ICN
Nonstop15h 25m
AIR PREMIA
Fri 11/610:00 am
ICN
-
IAD
Nonstop13h 50m
AIR PREMIA
Deal found 5/11$1,067
This FlightHub deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/262:30 pm
IAD
-
ICN
1 stop29h 35m
Turkish Airlines
Thu 11/1212:10 am
ICN
-
IAD
1 stop25h 35m
Turkish Airlines
Deal found 5/11$1,100
This FlightHub deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/211:20 pm
IAD
-
ICN
1 stop30h 15m
Turkish Airlines
Tue 11/312:10 am
ICN
-
IAD
1 stop26h 35m
Turkish Airlines
Deal found 5/10$1,101
This AIR PREMIA deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure AIR PREMIA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/71:20 pm
IAD
-
ICN
Nonstop15h 35m
AIR PREMIA
Sun 9/2010:00 am
ICN
-
IAD
Nonstop13h 50m
AIR PREMIA
Deal found 5/11$1,102
This Super.com deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/311:50 am
IAD
-
ICN
1 stop27h 55m
EVA Air
Tue 9/157:45 pm
ICN
-
IAD
1 stop39h 15m
EVA Air
Deal found 5/13$1,130
This Super.com deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/311:50 am
IAD
-
ICN
1 stop20h 10m
EVA Air
Wed 9/3012:00 pm
ICN
-
IAD
1 stop23h 00m
EVA Air
Deal found 5/12$1,131
This FlightHub deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/161:30 pm
IAD
-
ICN
1 stop38h 50m
Turkish Airlines
Mon 11/2310:45 am
ICN
-
IAD
1 stop39h 00m
Turkish Airlines
Deal found 5/12$1,137
This oojo deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/281:15 am
IAD
-
ICN
1 stop21h 55m
EVA Air
Tue 10/137:45 pm
ICN
-
IAD
1 stop39h 15m
EVA Air
Deal found 5/14$1,138
This oojo deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/281:15 am
IAD
-
ICN
1 stop21h 55m
EVA Air
Wed 10/2811:40 am
ICN
-
IAD
1 stop23h 15m
EVA Air
Deal found 5/13$1,139
This FlightHub deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/211:15 am
IAD
-
ICN
1 stop28h 30m
Multiple Airlines
Mon 10/51:25 pm
ICN
-
IAD
1 stop21h 35m
Multiple Airlines
Deal found 5/11$1,144
This FlightHub deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/211:20 pm
IAD
-
ICN
1 stop30h 15m
Turkish Airlines
Tue 10/2712:10 am
ICN
-
IAD
1 stop25h 35m
Turkish Airlines
Deal found 5/11$1,151

Find flight deals from Washington, D.C. to South Korea

Keep the following information in mind while searching for Washington, D.C. to South Korea flight deals. Data was last updated May 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,065
(FlightHub)

One-way from

$517
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,504

Good round-trip deal

$1,378 or less

Good one-way deal

$682 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Seoul (SEL) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Seoul (SEL) flights.
Search Deals
From Washington, D.C. (WAS) to South Korea
Search Deals
One-way flight from Washington, D.C. (WAS) to South Korea
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($99 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($63 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from Washington, D.C. (WAS) to South Korea.
Search Deals
Price to beat on a one-way flight from Washington, D.C. (WAS) to South Korea.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to South Korea that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 14, 2026.
Use the filters below to find and compare flights from Washington, D.C. to South Korea that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Tue 9/29

6:41 pm-10:25 pm

2 stops38h 44m

Incheon Intl

Tue 10/13

8:05 pm-5:40 am

2 stops46h 35m

$1,308

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Mon 9/28

2:46 pm-2:05 pm

2 stops34h 19m

Incheon Intl

Mon 10/5

8:00 am-5:00 am

2 stops34h 00m

$1,309

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Mon 11/2

6:59 pm-5:35 pm

2 stops56h 36m

Incheon Intl

Fri 11/13

8:00 pm-5:59 pm

2 stops35h 59m

$1,374

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Fri 10/30

6:57 pm-5:35 pm

2 stops33h 38m

Incheon Intl

Sun 11/15

8:00 pm-5:59 pm

2 stops35h 59m

$1,401

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Thu 9/10

12:30 pm-12:40 pm

2 stops35h 10m

Incheon Intl

Sun 9/20

1:40 pm-11:58 pm

2 stops47h 18m

$1,411

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 9/8

11:34 am-12:40 pm

2 stops36h 06m

Incheon Intl

Sun 9/20

1:40 pm-11:58 pm

2 stops47h 18m

$1,411

Washington, D.C.Jeju City

IAD - CJU

IADCJU

Washington, D.C. Dulles Intl

Wed 9/9

1:15 am-6:40 pm

2 stops28h 25m

Jeju City

Wed 9/16

6:25 am-10:00 pm

2 stops28h 35m

$1,416

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Thu 10/22

7:06 pm-5:55 pm

2 stops33h 49m

Seoul Gimpo Intl

Fri 11/20

7:40 pm-4:51 pm

2 stops35h 11m

$1,478

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Mon 10/19

7:06 pm-10:40 am

2 stops26h 34m

Seoul Gimpo Intl

Fri 11/20

7:40 pm-9:29 pm

2 stops39h 49m

$1,483

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Mon 11/9

5:45 pm-10:05 pm

2 stops38h 20m

Seoul Gimpo Intl

Fri 11/13

8:00 am-9:29 pm

2 stops27h 29m

$1,483

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/10

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Washington, D.C. to South Korea

Have a flexible travel schedule? Discover the best time to fly to South Korea from Washington, D.C. with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to South Korea

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

The price you pay for your flight from Washington, D.C. to South Korea may vary depending on when you book. For the best chance of a lower fare, look to book 79 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Washington, D.C. to South Korea?

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. to South Korea (average of $197). Flying from Washington, D.C. to South Korea in June is currently the most expensive (average of $2,758). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WAS to KR?

Find hourly flight availability from Washington, D.C. to South Korea. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 14, 2026.

When flying from Washington, D.C. to South Korea, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Washington, D.C. to South Korea

Explore weekly flight availability from Washington, D.C. to South Korea. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 14, 2026.

The most flights from WAS to KR0 are scheduled on a Wednesday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

How often are flights from Washington, D.C. to South Korea delayed?

About 26% of weekly flights between Washington, D.C. and South Korea have experienced delays in the past year, with the average delay time being 96 minutes.

What is the most punctual flight time for Washington, D.C. to South Korea flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Washington, D.C. to South Korea flights?

Over the last year, Korean Air have had the lowest number of delays on this route, with just 26% of flights being delayed.

Reviews of airlines servicing South Korea

Get insights into the airlines that provide service to South Korea. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to South Korea. Reviews last updated May 14, 2026.
Peruse reviews from past customers who have flown with Korean Air,AIR PREMIA, andDelta from Washington, D.C. to South Korea to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,217 reviews

Crew

8.7

Comfort

8.3

Overall

8.4

Entertainment

8.2

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,217 reviews
Korean Air
8.4
Very good
1,217 reviews

Crew

8.7

Comfort

8.3

Overall

8.4

Entertainment

8.2

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
AIR PREMIA
8.0
Very good
92 reviews
Korean Air
8.4
Very good
1,217 reviews

Crew

8.7

Comfort

8.3

Overall

8.4

Entertainment

8.2

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Delta
7.9
Good
8,453 reviews
Korean Air
8.4
Very good
1,217 reviews

Crew

8.7

Comfort

8.3

Overall

8.4

Entertainment

8.2

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
United Airlines
7.4
Good
9,718 reviews
Korean Air
8.4
Very good
1,217 reviews

Crew

8.7

Comfort

8.3

Overall

8.4

Entertainment

8.2

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Air Canada
7.1
Good
11,042 reviews
Korean Air
8.4
Very good
1,217 reviews

Crew

8.7

Comfort

8.3

Overall

8.4

Entertainment

8.2

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to South Korea. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. to South Korea?

    Alaska Airlines, Cathay Pacific, and Japan Airlines can get you from Washington, D.C. to South Korea in just under 33h 49m. Your travel time can differ by up to 22h 47m. The distance from Washington, D.C. to South Korea is about 6939 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Washington, D.C. to South Korea one-way?

    One-way options have recently been found by users for as low as $488 on Turkish Airlines. Other airlines that offer cheap prices include AIR PREMIA from $518 and Air Canada from $575 one-way.

  • What are the most popular routes from Washington, D.C. to South Korea?

    When deciding which route to take from Washington, D.C. to South Korea consider Washington, D.C. Dulles Intl - Incheon Intl, Washington, D.C. Reagan-National - Incheon Intl or Baltimore/Washington - Incheon Intl as they are the most popular.

  • What are the most reliable airlines from Washington, D.C. to South Korea?

    The top 3 most reliable airlines when flying from Washington, D.C. to South Korea are AIR PREMIA (100%), Delta (55%) and Korean Air (55%).

  • What are the cheapest flights from Washington, D.C. to South Korea?

    Looking at all options, your cheapest flight can be booked for $530. While the most popular route (Washington, D.C. Dulles Intl - Incheon Intl) can be booked for $1,045 on average, our data indicates $2,632 when flying from Washington, D.C. to South Korea.

  • Can I find deals for flights from Washington, D.C. to South Korea that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to South Korea flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to South Korea?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to South Korea.

  • Can I find deals for business class flights from Washington, D.C. to South Korea?

    Yes. Cheapflights offers flight deals from Washington, D.C. to South Korea by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. to South Korea?

    Currently, October is the cheapest month in which you can book a flight from Washington, D.C. to South Korea (average of $197). Flying from Washington, D.C. to South Korea in June is currently the most expensive (average of $2,758). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 8 airlines flying from Washington, D.C. to South Korea

Discover the top 8 airlines that operate flights from Washington, D.C. to South Korea. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$317Average$1,526FlexibilityNo cancel feeOn-time69%
DeltaCheapest$392Average$1,565FlexibilityNo cancel feeOn-timeN/A
AIR PREMIACheapest$595Average$1,299FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$685Average$1,239FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$716Average$1,292FlexibilityNo cancel feeOn-time71%
Air ChinaCheapest$729Average$1,205FlexibilityNo cancel feeOn-time67%
Turkish AirlinesCheapest$902Average$1,108FlexibilityNo cancel feeOn-time77%
Korean AirCheapest$1,385Average$1,730FlexibilityNo cancel feeOn-time81%

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