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 return flight from Washington Dulles Airport to Incheon International Airport? If you want to travel next month, return fares start from $1,679. Find the lowest prices on one-way and return tickets right here.

Seoul.$378 per passenger.Departing Sat, 8 May, returning Tue, 1 Jun.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Dulles on Sat, 8 May, arriving in Incheon International.Inbound indirect flight with Air Canada, departs from Incheon International on Tue, 1 Jun, arriving in Washington Dulles.Price includes taxes and charges.From $378, select.

Seoul.$1,672 per passenger.Departing Fri, 18 Sep, returning Fri, 2 Oct.Return flight with Air Premia.Outbound direct flight with Air Premia departs from Washington Dulles on Fri, 18 Sep, arriving in Incheon International.Inbound direct flight with Air Premia departs from Incheon International on Fri, 2 Oct, arriving in Washington Dulles.Price includes taxes and charges.From $1,672, select.

Seoul.$1,679 per passenger.Departing Mon, 19 Oct, returning Fri, 30 Oct.Return flight with Air Premia.Outbound direct flight with Air Premia departs from Washington Dulles on Mon, 19 Oct, arriving in Incheon International.Inbound direct flight with Air Premia departs from Incheon International on Fri, 30 Oct, arriving in Washington Dulles.Price includes taxes and charges.From $1,679, select.

Seoul.$1,679 per passenger.Departing Mon, 9 Nov, returning Wed, 18 Nov.Return flight with Air Premia.Outbound direct flight with Air Premia departs from Washington Dulles on Mon, 9 Nov, arriving in Incheon International.Inbound direct flight with Air Premia departs from Incheon International on Wed, 18 Nov, arriving in Washington Dulles.Price includes taxes and charges.From $1,679, select.

Seoul.$1,679 per passenger.Departing Mon, 21 Sep, returning Mon, 28 Sep.Return flight with Air Premia.Outbound direct flight with Air Premia departs from Washington Dulles on Mon, 21 Sep, arriving in Incheon International.Inbound direct flight with Air Premia departs from Incheon International on Mon, 28 Sep, arriving in Washington Dulles.Price includes taxes and charges.From $1,679, select.

Seoul.$1,696 per passenger.Departing Tue, 27 Oct, returning Fri, 6 Nov.Return flight with Air Premia.Outbound direct flight with Air Premia departs from Washington Dulles on Tue, 27 Oct, arriving in Incheon International.Inbound direct flight with Air Premia departs from Incheon International on Fri, 6 Nov, arriving in Washington Dulles.Price includes taxes and charges.From $1,696, select.

Seoul.$1,722 per passenger.Departing Fri, 4 Dec, returning Wed, 9 Dec.Return flight with Air Premia.Outbound direct flight with Air Premia departs from Washington Dulles on Fri, 4 Dec, arriving in Incheon International.Inbound direct flight with Air Premia departs from Incheon International on Wed, 9 Dec, arriving in Washington Dulles.Price includes taxes and charges.From $1,722, select.

Seoul.$1,722 per passenger.Departing Fri, 27 Nov, returning Fri, 4 Dec.Return flight with Air Premia.Outbound direct flight with Air Premia departs from Washington Dulles on Fri, 27 Nov, arriving in Incheon International.Inbound direct flight with Air Premia departs from Incheon International on Fri, 4 Dec, arriving in Washington Dulles.Price includes taxes and charges.From $1,722, select.

Seoul.$1,774 per passenger.Departing Sun, 11 Oct, returning Mon, 7 Dec.Return flight with Air Premia.Outbound direct flight with Air Premia departs from Washington Dulles on Sun, 11 Oct, arriving in Incheon International.Inbound direct flight with Air Premia departs from Incheon International on Mon, 7 Dec, arriving in Washington Dulles.Price includes taxes and charges.From $1,774, select.

Seoul.$1,809 per passenger.Departing Wed, 10 Feb, returning Wed, 17 Feb.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Dulles on Wed, 10 Feb, arriving in Incheon International.Inbound indirect flight with Air Canada, departs from Incheon International on Wed, 17 Feb, arriving in Washington Dulles.Price includes taxes and charges.From $1,809, select.

Seoul.$1,811 per passenger.Departing Tue, 4 May, returning Tue, 11 May.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Tue, 4 May, arriving in Incheon International.Inbound indirect flight with Turkish Airlines, departs from Incheon International on Tue, 11 May, arriving in Washington Dulles.Price includes taxes and charges.From $1,811, select.

Seoul.$1,813 per passenger.Departing Wed, 18 Nov, returning Wed, 24 Feb.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Wed, 18 Nov, arriving in Incheon International.Inbound indirect flight with Turkish Airlines, departs from Incheon International on Wed, 24 Feb, arriving in Washington Dulles.Price includes taxes and charges.From $1,813, select.

Seoul.$1,813 per passenger.Departing Tue, 5 Jan, returning Thu, 21 Jan.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Tue, 5 Jan, arriving in Incheon International.Inbound indirect flight with Turkish Airlines, departs from Incheon International on Thu, 21 Jan, arriving in Washington Dulles.Price includes taxes and charges.From $1,813, select.

Seoul.$1,838 per passenger.Departing Mon, 28 Dec, returning Fri, 22 Jan.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Mon, 28 Dec, arriving in Incheon International.Inbound indirect flight with Turkish Airlines, departs from Incheon International on Fri, 22 Jan, arriving in Washington Dulles.Price includes taxes and charges.From $1,838, select.

Seoul.$1,843 per passenger.Departing Tue, 27 Jul, returning Tue, 24 Aug.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Dulles on Tue, 27 Jul, arriving in Incheon International.Inbound indirect flight with Air Canada, departs from Incheon International on Tue, 24 Aug, arriving in Washington Dulles.Price includes taxes and charges.From $1,843, select.

Seoul.$1,843 per passenger.Departing Mon, 4 Jan, returning Tue, 2 Feb.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Mon, 4 Jan, arriving in Incheon International.Inbound indirect flight with Turkish Airlines, departs from Incheon International on Tue, 2 Feb, arriving in Washington Dulles.Price includes taxes and charges.From $1,843, 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.

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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.

Gimpo International

17km from central Seoul

Closest

from $1,853

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Incheon International

48km from central Seoul

Cheapest

from $378

Search flights

Washington D.C. to Seoul: Flight information

The things to know before you go.

Cheapest flight found	$378
Cheapest month to fly	May
Average flight time	15 hrs, 37 mins
Most popular airline	Delta
Average flights per week	19

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

How much are return flights from Washington Dulles to Incheon International?

The best price we found for a return flight from Washington Dulles to Incheon International is $378. 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.

How long does it take to fly from Washington Dulles to Incheon International?

15 hours and 37 minutes is the average flight time from Washington Dulles to Incheon International.

Which airlines fly direct from Washington Dulles to Incheon International?

Delta, Korean Air and Air Premia fly direct from Washington Dulles to Incheon International.

How many flights are there a week from Washington Dulles to Incheon International?

As of September 2026, there are 19 flights per week flying from Washington Dulles to Incheon International.

When is the cheapest time to fly from Washington Dulles to Incheon International?

The cheapest month to fly from Washington Dulles to Incheon International is usually May.

Which upcoming date is cheapest to fly from Washington Dulles Airport to Incheon International Airport on?

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 Saturday, 8 May 2027.

Can I get a direct flight from Washington Dulles Airport to Incheon International Airport?

Yes – the average flight time is 15 hours and 37 minutes.

How can I find the best flight deal to Incheon International?

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.

When is the best time to book flights to Seoul?

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.

Which is the cheapest airline to fly from Washington Dulles Airport to Incheon International with?

Currently, Air Canada and Air Premia offer the cheapest flight tickets to Incheon International.

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

Hop on a direct flight from Washington Dulles Airport to Incheon International Airport and you'll be in the air for an average of 15 hours 30 minutes.
Seoul's timezone is UTC+9, making Seoul 14 hours ahead of Washington DC.
There are nine Washington Dulles Airport to Incheon International Airport flights every week to choose from.
Your IAD to ICN flight won't wait if you're running late, so get to the airport with time to spare. Arrive up to one hour in advance for domestic flights and two hours ahead when you're travelling internationally.
During popular months such as July, it's a good idea to get to the airport well in advance. Plan to arrive two hours before domestic departures and four hours ahead for an international flight whenever you're flying during peak periods in general.
Getting to Seoul (and then seeing more of South Korea!) is a breeze with Korean Air. This popular airline has direct flights from Washington Dulles Airport to Incheon International Airport.
Korean Air is the airline most travellers choose to fly with on this route.
The most punctual carrier that offers IAD to ICN flights is Korean Air. Its services land without delay 73.33% of the time.
If you want to include a stop along the way, simply uncheck 'Direct flights only' when searching for your ticket from Washington Dulles Airport to Incheon International Airport. These are the top stopovers between IAD and ICN:
- Atlanta Hartsfield-Jackson Airport
- Beijing Capital Airport
- Harry Reid International Airport

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

$877 is the best price for a one-way Washington Dulles Airport to Incheon International Airport flight. A return flight starts at $378. These prices can change depending on availability and demand.
To score cheap tickets from IAD to ICN, book your trip six months before your departure date.
Organise your trip for November. That's the cheapest month for flights from Washington Dulles Airport to Incheon International Airport. If you're flexible with your dates, try out the 'Whole month' tool to see the cheapest airfare across every month.
You don't need to check back in every day to find out if fares have dropped when you set up a Price Alert. We'll let you know as soon as a special offer becomes available on cheap flights from IAD to ICN.
Select your ideal departure and arrival times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to get the best deals on flights from Washington Dulles Airport to Incheon International Airport.

Handy information about Washington Dulles Airport (IAD)

You'll find IAD at 1 Saarinen Circle.
77% of flights that take off from Washington Dulles Airport arrive at their destination on schedule.
To get to Washington Dulles Airport from central Washington DC, it'll take around 45 minutes if you're travelling by car. Of course, this depends on traffic. It's approximately 40 kilometres from the airport to the city centre.
You can expect a trip time of around 1 hour 10 minutes on public transport.
Looking for a convenient hotel close to IAD? If you're boarding an early flight from Washington Dulles Airport to Incheon International Airport, these stays will have you sleeping moments from your departure gate:

Arriving at Incheon International Airport (ICN)

If you're getting in on a late Washington Dulles Airport to Incheon International Airport flight, nothing beats the convenience of being close to the terminal. Grab your suitcases from the carousel and then be showered and snoozing soon after at one of these accommodation options near ICN:
Explore without limits with a Incheon International Airport rental car. Book your wheels from WECAR, Hi Rent A Car or Alamo and venture far and wide through Seoul and beyond.
Reserving your vehicle from Incheon International Airport about four weeks ahead gives you the best shot at securing a great deal.

Getting from Incheon International Airport (ICN) to central Seoul

From Incheon International Airport, Seoul is approximately 48 kilometres away. It takes around 1 hour 5 minutes to drive to the centre.
Travelling by public transport will take you roughly 50 minutes.

When to fly to Incheon International Airport (ICN)

It's time to pick your travel dates for your flight from Washington Dulles Airport to Incheon International Airport. August is the most popular month to visit Seoul. If you prefer a more low-key vibe, go in March.
Before locking in your flight from Washington Dulles Airport to Incheon International Airport, think about the kind of weather you like. August is the warmest month in Seoul, with temperatures ranging from 19ºC to 32ºC.
If you like travelling in cooler conditions, search for a cheap ticket from IAD to ICN in January. Temperatures average between -12ºC and 4ºC then.

Explore more of South Korea

Seoul is always a good idea, but there are so many other corners of South Korea waiting to be explored. About 322 kilometres south-east of Seoul, a visit to Busan will keep you busy. Check out popular attractions like Gamcheon Culture Village, Haeundae Beach and Beautiful View Busan - Diamond Bridge.
If you're looking to explore another corner of South Korea, head for Incheon, roughly 56 kilometres west of Seoul. INSPIRE Arena, Wangsan Beach and Seokmodo Natural Forest are among the biggest draws.