Cheap flights from Washington, D.C. to Seoul

Washington
WAS
Seoul
SEL

Flight deals from Washington, D.C. to Seoul

Below you can see the best deals on flights Washington, D.C. — Seoul for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 29 August, from $450.

Top 10 cheap flights from Washington, D.C. to Seoul

AS
AS
YP
$ 620

Washington, D.C. — Seoul

17:20—21:40
20 Aug 2026
39 h 20 m
2 stops
AC
AC
$ 657

Washington, D.C. — Seoul

08:29—16:05
17 Aug 2026
18 h 36 m
1 stop
AC
AC
$ 657

Washington, D.C. — Seoul

08:29—16:05
18 Aug 2026
18 h 36 m
1 stop
AC
AC
$ 657

Washington, D.C. — Seoul

08:29—16:05
19 Aug 2026
18 h 36 m
1 stop
AS
AS
$ 658

Washington, D.C. — Seoul

09:30—17:30
17 Aug 2026
19 h
1 stop
AS
AS
$ 658

Washington, D.C. — Seoul

06:03—17:30
17 Aug 2026
22 h 27 m
1 stop
AS
AS
$ 658

Washington, D.C. — Seoul

09:03—17:30
19 Aug 2026
19 h 27 m
1 stop
AS
AS
$ 658

Washington, D.C. — Seoul

08:00—17:30
19 Aug 2026
20 h 30 m
1 stop
AS
AS
$ 658

Washington, D.C. — Seoul

07:00—17:30
19 Aug 2026
21 h 30 m
1 stop
AS
AS
$ 658

Washington, D.C. — Seoul

09:03—17:30
20 Aug 2026
19 h 27 m
1 stop

Prices were found in the last 72 hours and may change — check the exact price when you continue.

When is the best time to book a flight from Washington, D.C. to Seoul?

The price of a flight from Washington, D.C. to Seoul changes depending on how far ahead you book. For the best chance of a lower fare, book around 30 days before departure, when the average ticket costs about $660. Fares also tend to climb as the departure date gets closer.

About the Washington, D.C. — Seoul flight

Looking for cheap flights from Washington, D.C. to Seoul? Compare fares from different airlines, check the flight schedule and travel time — and book your Washington, D.C. — Seoul ticket online at the best price.

The route has direct flights — around 15 flights per week, flights are operated by Korean Air, Air Premia, a nonstop flight takes about 15 h 10 min, the distance between the cities is around 11,189 km.

Planning your trip? You may find our Seoul travel guide, how to get from the airport into town and Seoul weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $443Min. price
JulyCheapest
JunePeak season
YesDirect flights
11,189 kmDistance
15 h 10 minTravel time
2Airlines
15 / wkFlights

Flight schedule from Washington, D.C. to Seoul

The table shows direct flights from Washington, D.C. to Seoul on the selected date. The flight takes approximately 15 h 10 min. Regular flights are operated by Korean Air and Air Premia. Departures from Washington Dulles International Airport, Baltimore/Washington International Thurgood Marshall Airport and Ronald Reagan National Airport airports, arrivals at Incheon International Airport and Gimpo International Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today
Any time
Last update: 14 Aug 2026

Flight ticket prices by day: Washington, D.C. — Seoul

Below is a calendar of the lowest flight ticket prices for Washington, D.C. — Seoul by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $443 in July, and the most expensive are around $867 in June. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from Washington, D.C. to Seoul by month. Tickets are usually cheapest in March (around $508) and priciest in December (about $761) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$628mediumMay$677highSep$520low
Feb$520lowJun$725highOct$508low
Mar$508lowJul$749highNov$592medium
Apr$592mediumAug$616mediumDec$761high

Some values are estimated based on seasonality.

When to fly

Weather in Seoul: it is warmest in August (up to 29 °C on average) and coolest in January (around 2 °C). The driest month is January.

Tickets are usually cheapest in July and most expensive in June. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · Seoul

Dry and wet days · Seoul

Wind speed and direction · Seoul

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How to get the best deal on a Washington, D.C. — Seoul ticket

  • Book ahead: fares for Washington, D.C. — Seoul are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • Washington, D.C. is served by more than one airport — compare fares and travel time to each before you book.
  • The cheapest month to fly to Seoul is usually July — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the Washington, D.C. — Seoul route are operated by 2 airlines; Korean Air runs the most flights (around 93% of all flights). Compare carriers, flight shares and schedules below.

  • Korean AirKE
    5x/week
    WebsiteFleet: 16025M pax/year
    • Direct flight IAD → ICN5x/week
      Duration
      15h 10m
      Days
      MTWTFSS
    93.3%Open →
  • Air PremiaYP
    1x/week
    WebsiteFleet: 8766k pax/year
    • Direct flight IAD → ICN1x/week
      Days
      MTWTFSS
    6.7%Open →

Cities and airports on the Washington, D.C. — Seoul route

Flights Washington, D.C. — Seoul depart from Washington Dulles International Airport, Baltimore/Washington International Thurgood Marshall Airport and Ronald Reagan National Airport and arrive at Incheon International Airport and Gimpo International Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Washington, D.C.

WAS
United States
About the cityHow to get thereWeatherAll about the country United States
Arrival

Seoul

SEL
Korea, Republic Of
About the cityHow to get thereWeatherAll about the country Korea, Republic Of
Departure airports
Arrival airports

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Frequently asked questions about the Washington, D.C. — Seoul flight

How long is the flight from Washington, D.C. to Seoul?

A nonstop Washington, D.C. — Seoul flight takes about 15 h 10 min — the distance between the cities is around 11,189 km.

How far is it from Washington, D.C. to Seoul?

The distance from Washington, D.C. to Seoul is about 11,189 km, which a nonstop flight covers in around 15 h 10 min.

Are there direct flights from Washington, D.C. to Seoul?

Yes, there are nonstop flights Washington, D.C. — Seoul — around 15 flights per week.

Which airlines fly from Washington, D.C. to Seoul?

Airlines operating Washington, D.C. — Seoul include Korean Air, Air Premia. See the full list with schedules in the "Airlines" section on this page.

Which airports do Washington, D.C. — Seoul flights use?

Flights from Washington, D.C. depart from Washington Dulles International Airport, Baltimore/Washington International Thurgood Marshall Airport, Ronald Reagan National Airport, and arrive at Incheon International Airport, Gimpo International Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from Washington, D.C. to Seoul?

The price of a Washington, D.C. — Seoul ticket depends on your travel date, season and demand: it is usually cheapest to fly in July, and most expensive in June. Tickets typically cost between $443 and $867. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights Washington, D.C. — Seoul?

Flights Washington, D.C. — Seoul are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is July. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from Washington, D.C. to Seoul?

To catch a low fare Washington, D.C. — Seoul, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually July.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

Where else you can fly from Washington, D.C.

See all
New York CityChicagoAtlantaBostonOrlandoTorontoCharlotteHoustonDetroitSeattleMinneapolisDallasMiamiFort LauderdaleMontrealDenverRaleighLos AngelesNashvilleSan FranciscoPittsburghTampaIndianapolisBuffaloCincinnatiProvidencePhiladelphiaLondonRochesterOttawaKnoxvilleColumbusClevelandAlbanySouth PortlandNorth CharlestonSan SalvadorSan DiegoBurlingtonNorfolk

Where else you can fly from Seoul

See all
Jeju CityTokyoOsakaShanghaiBusanHong KongFukuokaBangkokQingdaoTaipeiBeijingDa NangHo Chi Minh CitySingaporeHanoiNagoyaNha TrangUlaanbaatarManilaLos AngelesSapporoCebu CityKuala LumpurPhu QuocDenpasarOkinawaHagatnaGuangzhouDalianYanjiJakartaSeattleNew York CityShenzhenMacauYantaiTashkentShenyangSan FranciscoParis

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