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$414+ Cheap flights from Washington, D.C. (WAS) to South Korea

WAS — ICN
Oct 10 — Oct 171
Sat 10/10
Sat 10/17
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

Tue 11/1710:00 pm -
1 stop28h 35m
Tue 11/2411:10 am -
1 stop21h 20m
Deal found 9/8$954
Wed 12/211:35 pm -
Nonstop15h 50m
Wed 12/169:05 pm -
Nonstop13h 30m
Deal found 9/7$955
Mon 9/71:20 pm -
Nonstop15h 35m
Wed 9/2310:00 am -
Nonstop13h 50m
Deal found 9/6$958
Wed 9/161:20 pm -
Nonstop15h 35m
Wed 12/99:05 pm -
Nonstop13h 30m
Deal found 9/6$963
Mon 10/191:20 pm -
Nonstop15h 35m
Fri 10/309:05 pm -
Nonstop13h 30m
Deal found 9/9$971
Mon 10/121:20 pm -
Nonstop15h 35m
Wed 10/1410:00 am -
Nonstop13h 50m
Deal found 9/6$972
Mon 9/211:20 pm -
Nonstop15h 35m
Mon 10/1210:00 am -
Nonstop13h 50m
Deal found 9/7$975
Mon 10/121:20 pm -
Nonstop15h 35m
Fri 11/69:05 pm -
Nonstop13h 30m
Deal found 9/9$977
Wed 9/91:20 pm -
Nonstop15h 35m
Wed 9/1610:00 am -
Nonstop13h 50m
Deal found 9/8$978
Wed 12/211:35 pm -
Nonstop15h 50m
Sun 12/139:05 pm -
Nonstop13h 30m
Deal found 9/10$979
Sun 10/41:20 pm -
Nonstop15h 35m
Sun 10/1110:00 am -
Nonstop13h 50m
Deal found 9/6$982
Mon 10/121:15 am -
1 stop29h 00m
Tue 10/277:00 pm -
1 stop39h 55m
Deal found 9/8$992

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

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$954
(Super.com)

One-way from

$414
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$1,306

Good round-trip deal

$1,075 or less

Good one-way deal

$518 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Seoul (SEL) flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Seoul (SEL) flights.
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From Washington, D.C. (WAS) to South Korea
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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 ($100 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($68 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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Price to beat on a round-trip flight from Washington, D.C. (WAS) to South Korea.
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Price to beat on a one-way flight from Washington, D.C. (WAS) to South Korea.
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Cheapflights Fare Finder

 
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

BaltimoreIncheon

BWI Baltimore/Washington - ICN Incheon Intl

BWIICN

Baltimore/Washington

Tue 9/29

6:10 am-5:20 pm

2 stops22h 10m

Incheon Intl

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$524

BaltimoreIncheon

BWI Baltimore/Washington - ICN Incheon Intl

BWIICN

Baltimore/Washington

Thu 2/25

5:27 pm-1:50 pm

2 stops30h 23m

Incheon Intl

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$581

BaltimoreIncheon

BWI Baltimore/Washington - ICN Incheon Intl

BWIICN

Baltimore/Washington

Wed 9/16

7:50 am-10:25 pm

2 stops25h 35m

Incheon Intl

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$581

BaltimoreIncheon

BWI Baltimore/Washington - ICN Incheon Intl

BWIICN

Baltimore/Washington

Thu 10/1

11:23 am-10:25 pm

2 stops46h 02m

Incheon Intl

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$581

Washington, D.C.Incheon

DCA Washington, D.C. Reagan-National - ICN Incheon Intl

DCAICN

Washington, D.C. Reagan-National

Wed 9/16

6:59 pm-12:40 pm

2 stops28h 41m

Incheon Intl

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$581

Washington, D.C.Incheon

IAD Washington, D.C. Dulles Intl - ICN Incheon Intl

IADICN

Washington, D.C. Dulles Intl

Wed 2/17

5:50 pm-12:45 pm

2 stops28h 55m

Incheon Intl

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$581

Washington, D.C.Incheon

IAD Washington, D.C. Dulles Intl - ICN Incheon Intl

IADICN

Washington, D.C. Dulles Intl

Tue 9/29

4:56 pm-12:25 am

2 stops42h 29m

Incheon Intl

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$581

Washington, D.C.Busan

IAD Washington, D.C. Dulles Intl - PUS Busan Gimhae

IADPUS

Washington, D.C. Dulles Intl

Mon 1/18

11:55 pm-5:40 pm

1 stop27h 45m

Busan Gimhae

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$588

Washington, D.C.Incheon

IAD Washington, D.C. Dulles Intl - ICN Incheon Intl

IADICN

Washington, D.C. Dulles Intl

Tue 9/22

9:45 am-4:25 pm

1 stop17h 40m

Incheon Intl

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$592

Washington, D.C.Incheon

DCA Washington, D.C. Reagan-National - ICN Incheon Intl

DCAICN

Washington, D.C. Reagan-National

Sun 11/8

8:45 pm-5:10 pm

2 stops30h 25m

Incheon Intl

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$596

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

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

Cheapflights Insights

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

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 $1,247). Flying from Washington, D.C. to South Korea in December is currently the most expensive (average of $2,018). 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?

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

The most flights from WAS to KR0 are scheduled on a Monday (3 on average). You will have fewer flight options on Tuesday, 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 23% of weekly flights between Washington, D.C. and South Korea have experienced delays in the past year, with the average delay time being 98 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 Friday 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 25% of flights being delayed.

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 40 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing South Korea

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
1,221 reviews

Crew

8.7

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Overall

8.4

Food

8.1

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
1,221 reviews
Korean Air
8.4
Very good
1,221 reviews

Crew

8.7

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Overall

8.4

Food

8.1

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
8.1
Very good
106 reviews
Korean Air
8.4
Very good
1,221 reviews

Crew

8.7

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Overall

8.4

Food

8.1

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
7.8
Good
8,554 reviews
Korean Air
8.4
Very good
1,221 reviews

Crew

8.7

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Overall

8.4

Food

8.1

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
10,194 reviews
Korean Air
8.4
Very good
1,221 reviews

Crew

8.7

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Overall

8.4

Food

8.1

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
11,608 reviews
Korean Air
8.4
Very good
1,221 reviews

Crew

8.7

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Overall

8.4

Food

8.1

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

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

    AIR PREMIA, Air Canada, and Turkish Airlines can get you from Washington, D.C. to South Korea in just under 15h 50m. Your travel time can differ by up to 17h 30m. 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 $49 on Breeze Airways. Other airlines that offer cheap prices include United Airlines from $53 and Frontier from $91 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 (60%) and Korean Air (60%).

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

    Looking at all options, your cheapest flight can be booked for $474. While the most popular route (Washington, D.C. Dulles Intl - Incheon Intl) can be booked for $928 on average, our data indicates $2,539 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 $1,247). Flying from Washington, D.C. to South Korea in December is currently the most expensive (average of $2,018). 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

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

AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$392Average$1,587FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$685Average$1,378FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$687Average$1,496FlexibilityNo cancel feeOn-time69%
AIR PREMIACheapest$797Average$1,275FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$816Average$1,306FlexibilityNo cancel feeOn-time71%
Turkish AirlinesCheapest$929Average$1,109FlexibilityNo cancel feeOn-time77%
EVA AirCheapest$959Average$1,096FlexibilityNo cancel feeOn-time74%
Korean AirCheapest$1,313Average$1,707FlexibilityNo cancel feeOn-time81%

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