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Cheap flights from Washington Dulles to Incheon International

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Compare Washington Dulles to Incheon International flight deals

Find the cheapest month or even day of the year to fly to Incheon International

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Flight deals from Washington Dulles to Incheon International

Looking for a cheap last-minute deal or the best round-trip flight from Washington Dulles to Incheon International? Find the lowest prices on one-way and round-trip tickets right here.
Seoul.C$1,260 per passenger.Departing Thu, Nov 6, returning Wed, Dec 3.Round-trip flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departing from Washington Dulles on Thu, Nov 6, arriving in Incheon International.Inbound indirect flight with Turkish Airlines, departing from Incheon International on Wed, Dec 3, arriving in Washington Dulles.Price includes taxes and charges.From C$1,260, select.
Seoul.C$1,260 per passenger.Departing Mon, Nov 3, returning Tue, Nov 18.Round-trip flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departing from Washington Dulles on Mon, Nov 3, arriving in Incheon International.Inbound indirect flight with Turkish Airlines, departing from Incheon International on Tue, Nov 18, arriving in Washington Dulles.Price includes taxes and charges.From C$1,260, select.
Seoul.C$1,260 per passenger.Departing Thu, Sep 4, returning Fri, Sep 12.Round-trip flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departing from Washington Dulles on Thu, Sep 4, arriving in Incheon International.Inbound indirect flight with Turkish Airlines, departing from Incheon International on Fri, Sep 12, arriving in Washington Dulles.Price includes taxes and charges.From C$1,260, select.
Seoul.C$1,260 per passenger.Departing Tue, Oct 28, returning Wed, Nov 12.Round-trip flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departing from Washington Dulles on Tue, Oct 28, arriving in Incheon International.Inbound indirect flight with Turkish Airlines, departing from Incheon International on Wed, Nov 12, arriving in Washington Dulles.Price includes taxes and charges.From C$1,260, select.
Seoul.C$1,263 per passenger.Departing Mon, Aug 25, returning Tue, Oct 28.Round-trip flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departing from Washington Dulles on Mon, Aug 25, arriving in Incheon International.Inbound indirect flight with Turkish Airlines, departing from Incheon International on Tue, Oct 28, arriving in Washington Dulles.Price includes taxes and charges.From C$1,263, select.
Seoul.C$1,263 per passenger.Departing Thu, Aug 28, returning Thu, Sep 4.Round-trip flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departing from Washington Dulles on Thu, Aug 28, arriving in Incheon International.Inbound indirect flight with Turkish Airlines, departing from Incheon International on Thu, Sep 4, arriving in Washington Dulles.Price includes taxes and charges.From C$1,263, select.
Seoul.C$1,263 per passenger.Departing Wed, Sep 24, returning Wed, Oct 15.Round-trip flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departing from Washington Dulles on Wed, Sep 24, arriving in Incheon International.Inbound indirect flight with Turkish Airlines, departing from Incheon International on Wed, Oct 15, arriving in Washington Dulles.Price includes taxes and charges.From C$1,263, select.
Seoul.C$1,266 per passenger.Departing Wed, Oct 22, returning Wed, Dec 3.Round-trip flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departing from Washington Dulles on Wed, Oct 22, arriving in Incheon International.Inbound indirect flight with Turkish Airlines, departing from Incheon International on Wed, Dec 3, arriving in Washington Dulles.Price includes taxes and charges.From C$1,266, select.

Find the cheapest month to fly from Washington Dulles to Incheon International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to Incheon International flights are currently cheapest in September.
May
from C$1,344
Jun
from C$1,735
Jul
from C$1,674
Aug
from C$1,586
Sep
from C$1,260
Oct
from C$1,267
Nov
from C$1,260
Dec
from C$1,363
Jan
from C$1,302
Feb
from C$1,308
Mar
from C$1,311
Apr
from C$1,311

Direct flights from Washington Dulles to Incheon International

Washington Dulles to Incheon International: Alternative routes

Compare routes from Washington Dulles to Seoul below. You may find an airport to fly into that's cheaper, faster, or easier than Incheon International.

Washington, D.C. to Seoul: Flight information

The things to know before you go.
Cheapest flight foundC$1,260
Cheapest month to flyOctober
Average flight time15 hrs, 34 mins
Most popular airlineDelta
Average flights per week16

Finding cheap flights from Washington Dulles to Incheon International: Frequently asked questions

The best price we found for a round-trip flight from Washington Dulles to Incheon International is C$1,260. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
15 hours and 34 minutes is the average flight time from Washington Dulles to Incheon International.
Delta and Korean Air fly direct from Washington Dulles to Incheon International.
There are 16 flights per week flying from Washington Dulles to Incheon International, as of May 2025.
The cheapest month to fly from Washington Dulles to Incheon International is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to Incheon International Airport on Tuesday, October 28, 2025.
Yes – the average flight time is 15 hours and 34 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Incheon International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Seoul is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Turkish Airlines and Korean Air offer the cheapest flight tickets to Incheon International.

Flying from Washington Dulles International Airport (IAD) to Incheon International Airport (ICN): what you need to know

  • Around 15 hours is how long you can expect to be travelling on a direct flight from Washington Dulles International Airport to Incheon International Airport.

  • Seoul is 13 hours ahead of Washington DC and follows the UTC+9 timezone.

  • Every week, there are eight Washington Dulles International Airport to Incheon International Airport flights. To be on board as early as possible, take the 11:50 Korean Air flight. If you're eager to make the most of your time before you fly, the latest flight is at 13:40 with Korean Air.

  • To ensure you get on your IAD to ICN flight, leave plenty of time to check in and drop off your luggage. Arriving two hours ahead of international departures and an hour before domestic flights is the standard rule.

  • You'll likely experience longer lines in popular months like April. Arriving up to four hours in advance for international flights and two hours for a domestic departure is a good idea.

  • Flying into Seoul (and then discovering more of South Korea!) is easy with Korean Air. This popular airline offers direct flights from Washington Dulles International Airport to Incheon International Airport.

  • The airline that serves the most passengers on this route is Korean Air.

  • The carrier with the best on-time arrival rate for IAD to ICN flights is Korean Air.

  • If you want to add a stop to your trip, simply uncheck 'Direct flights only' when searching for your ticket from Washington Dulles International Airport to Incheon International Airport. These are the top stopovers between IAD and ICN:

    • Harry Reid Airport (formerly McCarran Airport)

    • Beijing Capital International Airport

    • Hartsfield-Jackson Atlanta International Airport

How to find the cheapest flights from Washington Dulles International Airport (IAD) to Incheon International Airport (ICN)

  • The lowest price we've seen for a one-way Washington Dulles International Airport to Incheon International Airport flight is C$694. A return plane ticket right now is C$1,260. Depending on the availability when you book, these fares may change.

  • To get your hands on cheap tickets from IAD to ICN, book ahead. Airlines usually offer their most competitively priced fares when flights are first released.

  • Organize your trip for November. That's the cheapest month for flights from Washington Dulles International Airport to Incheon International Airport. If your travel dates are flexible, try out the 'Whole month' tool to see the lowest price across each month.

  • Finding cheap flights from IAD to ICN is a piece of cake with Price Alerts. All you need to do is create one of these automatic alerts and we'll notify you as soon as a new discounted fare appears.

  • Tailor your flights using filters. Choose your ideal arrival and departure times, total journey duration and airlines. You can also sort results by 'Best,' 'Cheapest' or 'Fastest' flights from Washington Dulles International Airport to Incheon International Airport.

Handy information about Washington Dulles International Airport (IAD)

  • IAD is located at 1 Saarinen Circle.

  • Of the flights that depart from Washington Dulles International Airport, 74.39% land on schedule at their destination.

  • To get to Washington Dulles International Airport from central Washington DC, it'll take around 50 minutes if you're going by car. This depends on traffic though. It's approximately 56 kilometres from the airport to the city centre.

  • Planning to take public transport? You can expect a journey time of around 3 hours 25 minutes.

  • Have an early flight from Washington Dulles International Airport to Incheon International Airport? Avoid rushing to the terminal (and catch some extra z's) by choosing one of these stays close to IAD:

Arriving at Incheon International Airport (ICN)

  • If you're arriving on a late Washington Dulles International Airport to Incheon International Airport flight, few things top the convenience of being near the terminal. Collect your bags from the carousel and then be resting not long after at one of these accommodation options near ICN:

  • Travel at your own pace with an Incheon International Airport rental car. Pick up your wheels from WECAR, Hi Rent A Car or Alamo and experience more of Seoul and beyond.

  • To secure the lowest price, book your vehicle from Incheon International Airport about four weeks before travelling.

Getting from Incheon International Airport (ICN) to central Seoul

  • Incheon International Airport is approximately 48 kilometres from central Seoul. How long it takes to get there in a cab or ride-share will depend on the time of day, so do some research before your trip.

  • When travelling by public transport, expect a journey of roughly 1 hour 45 minutes.

When to fly to Incheon International Airport (ICN)

  • The quietest month for a flight from Washington Dulles International Airport to Incheon International Airport is April, while July is the most popular. Choose the best time to go to Seoul based on whether you prefer a faster pace or a more relaxed vibe.

  • The warmest month in Seoul is August, with the temperature ranging between 19ºC (66ºF) and 32ºC (90ºF). Book your flights from Washington Dulles International Airport to Incheon International Airport in this month if you enjoy this type of weather.

  • Search for cheap tickets from IAD to ICN in January if you like travelling in cooler conditions. Temperatures are at their lowest around then, ranging between -12ºC (10ºF) and 4ºC (39ºF) on average.

Explore more of South Korea

  • Busan is just one of the many cities in South Korea waiting to be explored once you've seen Seoul. Around 322 kilometres away to the south-east, popular attractions include Haeundae Beach, Gamcheon Culture Village and Beomeosa Temple.

  • Around 56 kilometres west of Seoul, Incheon is another essential stop in South Korea. Start your sightseeing at Lawn Square of Incheon International Airport, Yeongjong Sky City No.23 Park and 스카이72 GC 바다코스.

Plan the rest of your trip from Washington, D.C. to Seoul

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.