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Cheap Flights from Washington Dulles to Seoul

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Compare Washington Dulles to Seoul flight deals

Find the cheapest month or even day of the year to fly to Seoul

Book the best Seoul fare with no extra fees

Flight deals from Washington Dulles to Seoul

Looking for a cheap last-minute deal or the best return flight from Washington Dulles to Seoul? Find the lowest prices on one-way and return tickets right here.
Seoul.R 8,315 per passenger.Departing Wed, 27 Aug.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Washington Dulles on Wed, 27 Aug, arriving in Incheon International.Price includes taxes and charges.From R 8,315, select.
Seoul.R 9,153 per passenger.Departing Sat, 13 Sep.One-way flight with Porter Airlines (Canada) Ltd.Outbound indirect flight with Porter Airlines (Canada) Ltd, departs from Washington Dulles on Sat, 13 Sep, arriving in Incheon International.Price includes taxes and charges.From R 9,153, select.
Seoul.R 9,168 per passenger.Departing Wed, 14 May.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Wed, 14 May, arriving in Incheon International.Price includes taxes and charges.From R 9,168, select.
Seoul.R 10,315 per passenger.Departing Tue, 30 Dec.One-way flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Tue, 30 Dec, arriving in Incheon International.Price includes taxes and charges.From R 10,315, select.
Seoul.R 10,381 per passenger.Departing Thu, 19 Mar.One-way flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Thu, 19 Mar, arriving in Incheon International.Price includes taxes and charges.From R 10,381, select.
Seoul.R 10,398 per passenger.Departing Mon, 10 Nov.One-way flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Mon, 10 Nov, arriving in Incheon International.Price includes taxes and charges.From R 10,398, select.
Seoul.R 10,399 per passenger.Departing Tue, 28 Oct.One-way flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Tue, 28 Oct, arriving in Incheon International.Price includes taxes and charges.From R 10,399, select.
Seoul.R 10,427 per passenger.Departing Thu, 1 Jan.One-way flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Thu, 1 Jan, arriving in Incheon International.Price includes taxes and charges.From R 10,427, select.

Find the cheapest month to fly from Washington Dulles to Seoul

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to Seoul flights are currently cheapest in August.
Apr
from R 12,470
May
from R 9,224
Jun
from R 11,742
Jul
from R 10,715
Aug
from R 8,366
Sep
from R 9,210
Oct
from R 10,463
Nov
from R 10,462
Dec
from R 10,379
Jan
from R 10,492
Feb
from R 13,239
Mar
from R 10,445

Direct flights from Washington Dulles to Seoul

Alternative Washington Dulles to Seoul routes

Looking for the cheapest, fastest or easiest route from Washington Dulles to Seoul? You could fly into the following airports instead.

Washington D.C. to Seoul: Flight information

The things to know before you go.
Cheapest flight foundR 8,366
Cheapest month to flyAugust
Average flight time15 hrs, 34 mins
Most popular airlineDelta
Average flights per week16

Finding cheap flights from Washington Dulles to Seoul: Frequently asked questions

There are 2 airports in Seoul: Gimpo International and Incheon International.
The best price we found for a return flight from Washington Dulles to Seoul is R 17,316. 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 Seoul.
Delta and Korean Air fly direct from Washington Dulles to Seoul.
As of April 2025, there are 16 flights per week flying from Washington Dulles to Seoul.
The cheapest month to fly from Washington Dulles to Seoul is usually April 2025.
If you're flying from Washington Dulles Airport, the cheapest airport near Seoul is Incheon International – which is 47.8 km away from the centre of Seoul. We've found flights into this airport from R 17,316.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to Seoul on Thursday, 30 October 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 Seoul 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.
In April, the average temperature is usually around 10°C. August is typically the warmest month in Seoul, when it usually averages around 28°C. You can expect the least rain in January. The coldest month is January, with temperatures averaging -8°C. The rainiest month is July.
Currently, Turkish Airlines and Korean Air offer the cheapest flight tickets to Seoul.

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

  • The average length of a direct flight from Washington Dulles International Airport to Seoul is 13 hours 41 minutes.

  • Washington Dulles International Airport is located in Washington DC. Operating on the UTC+9 timezone, Seoul is 13 hours ahead of Washington DC.

  • The most popular route is from Washington Dulles International Airport (IAD) to Incheon International Airport (ICN). You can choose from 8 weekly services between these two airports. If you'd like to take off as soon as possible, the earliest flight from IAD to ICN is the 11:50 Korean Air service. If you'd rather fly out later on, the final departure is at 13:40 with Korean Air.

  • To ensure you catch your flight from IAD to Seoul, leave plenty of time to navigate the airport and find your gate. Turning up two hours before international departures and an hour before domestic flights is the standard rule.

  • Getting on a plane during a peak time like July? Popular seasons (like spring break, summer and New Year) can add another hour at check-in and security. Be extra cautious and arrive up to four hours ahead of international flights and two hours before a domestic departure.

  • You can book a direct flight from Washington Dulles International Airport to Seoul. Start your journey at IAD and end it at Incheon International Airport (ICN).

  • Korean Air is a well-known airline that offers direct flights from Washington Dulles International Airport to Seoul.

  • A stopover is the ideal opportunity to break up your journey — and perhaps even tour another city. When searching for flights from IAD to Seoul, deselect the 'Direct flights only' box to see where you can visit along the way. Consider one of these popular options:

    • Haneda Airport (HND)

    • Hartsfield-Jackson Atlanta International Airport (ATL)

    • Harry Reid Airport (formerly McCarran Airport) Airport (LAS)

  • You'll need an ETA for South Korea if you hold a passport from United States and are visiting for tourism purposes. Visa and travel documentation requirements can be subject to change. So before you book your cheap ticket from Washington Dulles International Airport to Seoul, check with your airline as well as the destination country's local consulate or embassy for the latest updates.

  • IAD is around 56 kilometres from central Washington DC. If you're ride-sharing, catching a cab or driving from the centre, it'll take you 51 minutes or so to get there, depending on the traffic. If you're planning to take public transport, expect the journey time to be around 3 hours and 26 minutes.

  • Want a stress-free start to your trip? Stay near IAD. Whether you're boarding an early flight from Washington Dulles International Airport to Seoul or want to avoid feeling rushed, these hotels are ideal:

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

  • R 8,366 is the best price for a one-way ticket from Washington Dulles International Airport to Seoul. A return flight starts from R 17,316. These fares can change based on demand and availability.

  • To pick up cheap tickets from IAD to Seoul, book your journey 3 months ahead of your planned departure.

  • Schedule your trip for November. That's the cheapest month for tickets from Washington Dulles International Airport to Seoul. If you're flexible with your dates, use the 'Whole month' tool to find the cheapest price across each month.

  • Finding a cheap ticket from IAD to Seoul is a piece of cake with Price Alerts. All you need to do is create one of these automatic alerts and we'll let you know as soon as the price has dropped.

  • Use the filters to tailor your flights from Washington Dulles International Airport to Seoul. Enter your ideal arrival and departure times, airlines and number of stops. Or sort your results by 'Cheapest' to get the best deals.

Airports in Seoul

Incheon International Airport (ICN)

  • Incheon International Airport (ICN) to the centre of Seoul is around 48 kilometres. If you're getting a cab or renting a car, plan in advance to make your trip as smooth as possible. Journey times can vary based on traffic conditions and the time of day.

  • If you're using public transport, expect a journey of around 1 hour and 44 minutes.

  • Consider booking a hotel near ICN if you have a late flight from Washington Dulles International Airport to Seoul. Settle into one of these accommodation options and skip the long transfer:

Gimpo International Airport (GMP)

  • If you're staying in Seoul's centre (or just want to explore straight away), the city is around 16 kilometres from Gimpo International Airport (GMP). Keep an eye out for any information kiosks to point you in the right direction after hopping off your flight from Washington Dulles International Airport to Seoul.

  • If you're travelling on public transport, it'll take about 1 hour and 3 minutes.

  • There are some great places to park your luggage (and yourself) near GMP. Unwind and get cosy after your flight from IAD to Seoul at any of these well-located options:

Best time to go to Seoul

  • It's time to choose your trip dates for your flight from Washington Dulles International Airport to Seoul. July is the most popular month to travel to Seoul. If you want a more relaxed vibe, go in April.

  • Lock in your flight from Washington Dulles International Airport to Seoul for August to visit the city during its warmest month. Expect temperatures to range from 19ºC to 32ºC.

  • January sees average temperatures of between -12ºC and 4ºC. Search for cheap flights from IAD to Seoul sometime then if you'd rather travel in cooler conditions.

More about Seoul

  • Start your Seoul trip right by choosing the perfect place to stay. As soon as you've booked your flight from Washington Dulles International Airport to Seoul, check out our range of accommodation options including:

  • Gyeongbokgung Palace and Bukchon Hanok Village are a couple of big attractions to put on your Seoul itinerary. Keep the sightseeing going at N Seoul Tower.

Complete your Seoul trip with a car rental

  • Pick one of our car rentals in Seoul and explore the city at your own pace. Easily compare options in one place to find the ideal ride after booking your hotel and cheap flights from Washington Dulles International Airport to Seoul.

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.