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$423+ Cheap flights from Dulles Intl (IAD) 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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ICN
nov. 28 — dic. 51
vie. 11/28
vie. 12/5
1 adult, Economy
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Cheap flight deals from Dulles Intl to South Korea

Keep the following information in mind while searching for Dulles Intl to South Korea flight deals. Data was last updated octubre 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,010
(Ovago)

One-way from

$423
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,214

Good round-trip deal

$1,239 or less

Good one-way deal

$632 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. Dulles Intl to South Korea
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One-way flight from Washington, D.C. Dulles Intl to South Korea
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Highest demand for flights based on searches. 16% potential increase in price ($262 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to South Korea.
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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to South Korea.
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Find flight deals from Dulles Intl to South Korea

Cheapest flights from Dulles Intl to South Korea
Explore the most affordable flight options available from Dulles Intl to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 29, 2025.

This Ovago deal was found by Cheapflights users on 10/27. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/91:30 pmIAD - ICN
1 stop38h 50mTurkish Airlines
lun. 2/212:10 amICN - IAD
1 stop33h 10mTurkish Airlines
Deal found 10/27$1,010
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/169:15 pmIAD - ICN
1 stop31h 05mMultiple Airlines
jue. 11/279:20 pmICN - IAD
2 stops33h 54mMultiple Airlines
Deal found 10/27$1,025
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/109:15 pmIAD - ICN
1 stop21h 50mMultiple Airlines
mié. 12/179:55 pmICN - IAD
2 stops27h 43mMultiple Airlines
Deal found 10/28$1,028
This KAYAK deal was found by Cheapflights users on 10/27. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/129:15 pmIAD - ICN
1 stop21h 50mTurkish Airlines
jue. 2/512:10 amICN - IAD
1 stop33h 10mTurkish Airlines
Deal found 10/27$1,034
This Booking.com deal was found by Cheapflights users on 10/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/65:50 pmIAD - ICN
2 stops33h 20mAir Canada
jue. 11/206:55 pmICN - IAD
2 stops30h 50mAir Canada
Deal found 10/28$1,036
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/128:40 amIAD - ICN
2 stops46h 55mMultiple Airlines
lun. 11/248:35 pmICN - IAD
1 stop23h 43mMultiple Airlines
Deal found 10/29$1,037
This Air Canada deal was found by Cheapflights users on 10/26. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/65:50 pmIAD - ICN
2 stops33h 20mAir Canada
mié. 12/245:55 pmICN - IAD
2 stops31h 40mAir Canada
Deal found 10/26$1,038
This KAYAK deal was found by Cheapflights users on 10/27. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/191:30 pmIAD - ICN
1 stop29h 35mTurkish Airlines
mar. 12/212:10 amICN - IAD
1 stop25h 35mTurkish Airlines
Deal found 10/27$1,039
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/318:36 pmIAD - ICN
2 stops32h 59mMultiple Airlines
lun. 11/178:35 pmICN - IAD
1 stop23h 48mMultiple Airlines
Deal found 10/28$1,042
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/179:15 pmIAD - ICN
1 stop21h 50mTurkish Airlines
mié. 11/2612:10 amICN - IAD
1 stop33h 10mTurkish Airlines
Deal found 10/27$1,044
This Air Canada deal was found by Cheapflights users on 10/28. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/125:50 pmIAD - ICN
2 stops32h 10mAir Canada
sáb. 12/208:10 pmICN - IAD
1 stop29h 38mAir Canada
Deal found 10/28$1,045
This Air Canada deal was found by Cheapflights users on 10/28. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/89:45 amIAD - ICN
2 stops40h 15mAir Canada
sáb. 12/208:10 pmICN - IAD
1 stop33h 36mAir Canada
Deal found 10/28$1,051

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl 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 octubre 29, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to South Korea that are best for you.

Fly from

Dulles Intl

Fly to

South Korea

Route

Depart

Return

Price

Washington, D.C.Busan

IAD - PUS

IADPUS

Washington, D.C. Dulles Intl

dom. 2/8

6:04 pm-6:50 pm

2 stops34h 46m

Busan Gimhae

jue. 2/26

11:50 am-5:55 am

2 stops32h 05m

$1,147

Washington, D.C.Busan

IAD - PUS

IADPUS

Washington, D.C. Dulles Intl

mar. 4/21

7:01 pm-7:00 pm

2 stops34h 59m

Busan Gimhae

sáb. 4/25

12:15 pm-5:49 am

2 stops30h 34m

$1,223

Washington, D.C.Daegu

IAD - TAE

IADTAE

Washington, D.C. Dulles Intl

lun. 4/13

3:35 pm-9:40 am

2 stops29h 05m

Daegu

sáb. 4/25

9:25 pm-9:45 am

2 stops49h 20m

$1,229

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

dom. 1/11

5:26 pm-12:45 pm

2 stops29h 19m

Incheon Intl

mar. 2/24

3:00 pm-10:51 pm

2 stops45h 51m

$1,284

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

dom. 3/15

5:10 pm-12:45 pm

2 stops30h 35m

Incheon Intl

lun. 3/23

10:00 am-4:09 pm

2 stops43h 09m

$1,292

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

vie. 1/9

5:26 pm-6:35 pm

2 stops35h 09m

Incheon Intl

lun. 1/19

8:35 pm-5:04 pm

2 stops34h 29m

$1,389

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

jue. 12/11

5:30 pm-1:05 pm

3 stops29h 35m

Seoul Gimpo Intl

jue. 12/18

1:30 pm-9:05 am

2 stops33h 35m

$1,431

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

dom. 3/1

7:08 pm-9:25 pm

2 stops36h 17m

Incheon Intl

lun. 8/24

10:10 am-11:01 am

2 stops37h 51m

$1,517

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

dom. 3/8

12:15 pm-10:30 pm

1 stop21h 15m

Seoul Gimpo Intl

dom. 3/15

7:50 pm-10:10 am

1 stop27h 20m

$1,542

Washington, D.C.Jeju City

IAD - CJU

IADCJU

Washington, D.C. Dulles Intl

jue. 12/11

1:30 pm-5:25 pm

2 stops37h 55m

Jeju City

jue. 12/18

12:05 pm-11:45 am

2 stops37h 40m

$1,545

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 54 results
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Best time to book a flight from Dulles Intl to South Korea

Have a flexible travel schedule? Discover the best time to fly to South Korea from Dulles Intl 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. Dulles Intl Airport to South Korea

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

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to South Korea (average of $407). Flying from Washington, D.C. Dulles Intl Airport to South Korea in July is currently the most expensive (average of $1,155). 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 IAD to KR?

Find hourly flight availability from Dulles Intl 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 octubre 29, 2025.

One of the essential ways to save on airfare from Washington, D.C. Dulles Intl Airport to South Korea is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 47% on airfare.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to South Korea?

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to South Korea. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to South Korea flight should consider departing on Wednesday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 octubre 29, 2025.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to South Korea, such as Korean Air, Delta, and Turkish Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,155 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

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
1,155 reviews
Korean Air
8.4
Very good
1,155 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

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
7,992 reviews
Korean Air
8.4
Very good
1,155 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

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.
Turkish Airlines
7.3
Good
4,031 reviews
Korean Air
8.4
Very good
1,155 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

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.
American Airlines
7.2
Good
11,032 reviews
Korean Air
8.4
Very good
1,155 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

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
10,372 reviews
Korean Air
8.4
Very good
1,155 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

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 Dulles Intl 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. Dulles Intl Airport to South Korea?

    There are many flights that can get you from Washington, D.C. Dulles Intl Airport to South Korea in 21h 15m. Fly via Alaska Airlines, ANA, or WestJet to get the fastest option. The distance between Washington, D.C. Dulles Intl Airport and South Korea is about 6925 mi. This flight may include one or multiple stops.

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

    The most popular route from Washington, D.C. Dulles Intl Airport to South Korea is Washington, D.C. Dulles Intl - Incheon Intl. You may also consider Washington, D.C. Dulles Intl - Seoul Gimpo Intl or Washington, D.C. Dulles Intl - Busan Gimhae.

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

    Looking at all options, your cheapest flight can be booked for $549. While the most popular route (Washington, D.C. Dulles Intl - Incheon Intl) can be booked for $746 on average, our data indicates $2,901 when flying from Washington, D.C. Dulles Intl Airport to South Korea.

  • Can I find deals for flights from Dulles Intl to South Korea that include hotel bookings?

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

  • How can I find direct flights from Dulles Intl to South Korea?

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

  • Can I find deals for business class flights from Dulles Intl to South Korea?

    Yes. Cheapflights offers flight deals from Dulles Intl 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. Dulles Intl Airport to South Korea?

    Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to South Korea (average of $407). Flying from Washington, D.C. Dulles Intl Airport to South Korea in July is currently the most expensive (average of $1,155). 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

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Alternative routes for Dulles Intl to South Korea

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Haneda flights
Dulles Intl to Suvarnabhumi flights
Dulles Intl to Narita flights
Reagan-National to Narita flights
Dulles Intl to New Delhi flights
Reagan-National to Haneda flights
Baltimore to Haneda flights
Baltimore to Narita flights
Reagan-National to New Delhi flights
Dulles Intl to Mumbai flights
Dulles Intl to Hyderabad flights
Baltimore to Suvarnabhumi flights
Dulles Intl to Incheon Intl flights
Reagan-National to Suvarnabhumi flights
Baltimore to New Delhi flights
Reagan-National to Hyderabad flights
Baltimore to Hyderabad flights
Dulles Intl to Bangalore flights
Dulles Intl to Ho Chi Minh City flights
Reagan-National to Bangalore flights
Baltimore to Bangalore flights
Reagan-National to Mumbai flights
Baltimore to Mumbai flights
Dulles Intl to Don Mueang Intl flights
Dulles Intl to Islamabad flights
Dulles Intl to Manila flights
Dulles Intl to Lahore flights
Dulles Intl to Ahmedabad flights
Reagan-National to Islamabad flights
Dulles Intl to Taiwan Taoyuan Intl flights
Reagan-National to Incheon Intl flights
Baltimore to Manila flights
Baltimore to Incheon Intl flights
Dulles Intl to Hong Kong flights
Reagan-National to Manila flights
Dulles Intl to Chennai flights
Reagan-National to Ahmedabad flights
Dulles Intl to Hongqiao Intl flights
Reagan-National to Taiwan Taoyuan Intl flights
Baltimore to Chennai flights
Reagan-National to Chennai flights
Baltimore to Taiwan Taoyuan Intl flights
Dulles Intl to Dhaka flights
Reagan-National to Ho Chi Minh City flights
Dulles Intl to Gimpo Intl flights
Dulles Intl to Karachi flights
Baltimore to Islamabad flights
Baltimore to Ahmedabad flights
Baltimore to Malé flights
Reagan-National to Hong Kong flights

Top 8 airlines flying from Dulles Intl to South Korea

Discover the top 8 airlines that operate flights from Dulles Intl 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 octubre 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$317Average$1,604FlexibilityNo cancel feeOn-time69%
DeltaCheapest$407Average$1,852FlexibilityNo cancel feeOn-timeN/A
Air ChinaCheapest$591Average$1,121FlexibilityNo cancel feeOn-time67%
Asiana AirlinesCheapest$759Average$2,072FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$791Average$990FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$872Average$1,514FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$876Average$1,292FlexibilityNo cancel feeOn-time71%
Korean AirCheapest$1,547Average$2,052FlexibilityNo cancel feeOn-time81%

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