Explore the cheapest one-way and round-trip flights from Incheon Intl. Airport to Dulles International Airport over the next 90 days, with one-way fares from €339 and round-trip from €763. Based on Trip.com's latest 7-day flight data.

Displayed flight fares from Seoul to Washington D.C. are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Trip.com Price Insights: Flights from Incheon Intl. Airport to Dulles International Airport

What is the cheapest month for one-way flights from Incheon Intl. Airport to Dulles International Airport?

Data is based on average one-way flight prices from Incheon Intl. Airport to Dulles International Airport in Trip.com's database over the past 12 months.

Based on Trip.com’s data from the past 12 months, if you’re looking for a low-cost one-way ticket from Incheon Intl. Airport to Dulles International Airport, the best time to buy is in September, with an average price of €604. You’ll want to avoid January, when the average price can reach as high as €1,279.

€1,279
€942
€604
€267
    Cheapest
  • €918
    Nov
  • €1,005
    Dec
  • €1,279
    Jan
  • €677
    Feb
  • €1,120
    Mar
  • €866
    Apr
  • €716
    May
  • €776
    Jun
  • €970
    Jul
  • €1,017
    Aug
  • €604
    Sep
  • €731
    Oct

What’s the cheapest month to fly round-trip from Incheon Intl. Airport to Dulles International Airport?

The data is based on the past 12 months and shows the average monthly round-trip fares from Incheon Intl. Airport to Dulles International Airport in the Trip.com database.

Based on Trip.com’s data from the past 12 months, September is typically the cheapest month to find flights from Incheon Intl. Airport to Dulles International Airport, with an average price of €1,042. In contrast, June is usually the most expensive month, with average fares reaching €1,776.

€1,776
€1,409
€1,042
€675
    Cheapest
  • €1,284
    Nov
  • €1,091
    Dec
  • €1,351
    Jan
  • €1,063
    Feb
  • €1,289
    Mar
  • €1,386
    Apr
  • €1,541
    May
  • €1,776
    Jun
  • €1,523
    Jul
  • €1,533
    Aug
  • €1,042
    Sep
  • €1,516
    Oct

What is the cheapest day of the week to fly from Incheon Intl. Airport to Dulles International Airport?

The data is based on the past 12 months and shows the average ticket prices from Incheon Intl. Airport to Dulles International Airport for each day of the week in the Trip.com database.

Based on Trip.com’s data from the past 12 months, the cheapest day to depart from Incheon Intl. Airport to Dulles International Airport is Tuesday, with average fares typically lower than other days. You’ll want to avoid flying on Saturday, as ticket prices are usually the highest that day.

€1,074
€937
€800
€663
  • €841
    Mon
  • €800
    Tue
  • €860
    Wed
  • €1,072
    Thu
  • €923
    Fri
  • €1,074
    Sat
  • €862
    Sun

Which airline offers the cheapest flights from Incheon Intl. Airport to Dulles International Airport?

The cheapest airline flying from Incheon Intl. Airport to Dulles International Airport is Air China (from €339) among 10 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Air China
From €339
Air Premia
From €443
Jeju Air
From €501
Scoot
From €519
Shandong Airlines
From €522
China Eastern Airlines
From €528
Air Canada
From €530
HK Express
From €541
Alaska Airlines
From €545
Trinity Airways
From €551

Find more flights and airlines

What is the flight schedule from Incheon Intl. Airport to Dulles International Airport?

Check the schedule for flights from Seoul to Washington D.C. and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule
  1. CA124

    1:05 PM

    ICN

    2h 5m

    Nonstop

    2:10 PM

    PEK

    S M T W T F S
    Search
  2. CA817

    4:00 PM

    PEK

    15h 30m

    Nonstop

    7:30 PM

    IAD

    - M - - T - -
  3. CA710

    10:50 AM

    ICN

    2h 5m

    Nonstop

    11:55 AM

    PEK

    S M T W T F S
    Search
  4. CA817

    4:00 PM

    PEK

    15h 30m

    Nonstop

    7:30 PM

    IAD

    - M - - T - -
  5. TW531

    8:40 PM

    ICN

    10h 15m

    Nonstop

    2:55 PM

    YVR

    - M - W - F S
    Search
  6. AS2222

    6:40 PM

    YVR

    1h 1m

    Nonstop

    6:41 PM

    SEA

    S M T W T F S
  7. AS367

    9:49 PM

    SEA

    4h 55m

    Nonstop

    5:44 AM

    IAD

    S M T W T F S
  8. YP131

    9:40 PM

    ICN

    13h 35m

    Nonstop

    10:15 PM

    EWR

    S M T W T F S
    Search
  9. DL5595

    10:25 AM

    JFK

    1h 27m

    Nonstop

    11:52 AM

    IAD

    S - - - - - -
  10. YP111

    7:15 PM

    ICN

    11h

    Nonstop

    2:15 PM

    SFO

    - - T - T F S
    Search
  11. F91448

    12:53 AM

    SFO

    4h 59m

    Nonstop

    8:52 AM

    ATL

    S M T W T F S
  12. F94410

    3:20 PM

    ATL

    1h 52m

    Nonstop

    5:12 PM

    IAD

    S M T W T F S
  13. YP131

    9:40 PM

    ICN

    13h 35m

    Nonstop

    10:15 PM

    EWR

    S M T W T F S
    Search
  14. DL5863

    3:59 PM

    JFK

    1h 29m

    Nonstop

    5:28 PM

    IAD

    S - - - - - -
  15. CA132

    3:30 PM

    ICN

    2h 10m

    Nonstop

    4:40 PM

    PKX

    S M T W T F S
    Search
  16. CA817

    4:00 PM

    PEK

    15h 30m

    Nonstop

    7:30 PM

    IAD

    - M - - T - -
  17. AC062

    7:05 PM

    ICN

    13h 10m

    Nonstop

    7:15 PM

    YYZ

    S M T - T F -
    Search
  18. AC8874

    8:05 AM

    YYZ

    1h 42m

    Nonstop

    9:47 AM

    EWR

    S M - W T F S
  19. DL5863

    3:59 PM

    JFK

    1h 29m

    Nonstop

    5:28 PM

    IAD

    S - - - - - -
  20. UO627

    9:50 PM

    ICN

    4h 5m

    Nonstop

    12:55 AM

    HKG

    S M T W T F S
    Search
  21. UO704

    7:50 AM

    HKG

    3h 5m

    Nonstop

    9:55 AM

    BKK

    S M T W T F S
  22. EY405

    2:40 PM

    BKK

    7h 25m

    Nonstop

    7:05 PM

    AUH

    S M T W T F S
  23. EY005

    3:15 AM

    AUH

    15h 30m

    Nonstop

    9:45 AM

    IAD

    S M T W T F S
  24. 7C2515

    7:15 PM

    ICN

    6h 20m

    Nonstop

    11:35 PM

    CNX

    S - - W T - S
    Search
  25. EY427

    9:30 AM

    CNX

    6h 30m

    Nonstop

    1:00 PM

    AUH

    S M T W T F S
  26. EY005

    3:15 AM

    AUH

    15h 30m

    Nonstop

    9:45 AM

    IAD

    S M T W T F S
Find more flights and airlines

About Incheon Intl. Airport and Dulles International Airport

Learn about Incheon Intl. Airport (ICN) and Dulles International Airport (IAD) — including location, terminals, transportation, and travel tips.

Flight distance 11,187.22 km
Cheapest one-way ticket price €339
Cheapest return ticket price €763

FAQs for Incheon Intl. Airport to Dulles International Airport Flights

  • How long is the flight from Incheon Intl. Airport to Dulles International Airport?

    Incheon Intl. Airport to Dulles International Airport takes about 13 hours 18 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 3 daily flights from Incheon Intl. Airport (ICN) to Dulles International Airport (IAD).
  • The earliest flight from Incheon Intl. Airport to Dulles International Airport departs at 10:00, and the last departs at 21:05, with about 2 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from Incheon Intl. Airport (ICN) to Dulles International Airport (IAD) is quite popular. Without considering departure times or holidays, tickets cost around €1,380 in January, the most expensive month to book this route.
  • Korean Air is a very popular airline operating an average of 779 flights per month.
  • One-way flights from Incheon Intl. Airport to Dulles International Airport currently start from €339, and round-trip fares start from €763. The current lowest fare is a Air China flight departing on Fri, Nov 20; prices may vary depending on availability.
  • Yes. Korean Air operate direct flights from Incheon Intl. Airport to Dulles International Airport, with an average flight time of 13 hours 15 minutes, and around 1 weekly flights. Actual flight frequency may vary by season.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Incheon Intl. Airport to Dulles International Airport is €1,020. Prices may vary depending on the departure date, airline, and availability.
  • Incheon Intl. Airport to Dulles International Airport operates around 10 weekly flights, mainly by Korean Air and Air Premia. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Incheon Intl. Airport and Dulles International Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.