$1,451 Cheap Flights from Washington Dulles to Seoul in 2025

Q: How many airports are there in Seoul?

There are 2 airports in Seoul: Gimpo International and Incheon International.

Q: How much are return flights from Washington Dulles to Seoul?

The best price we found for a return flight from Washington Dulles to Seoul is $1,451. 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.

Q: How long does it take to fly from Washington Dulles to Seoul?

15 hours and 34 minutes is the average flight time from Washington Dulles to Seoul.

Q: Which airlines fly direct from Washington Dulles to Seoul?

Delta and Korean Air fly direct from Washington Dulles to Seoul.

Q: How many flights are there a week from Washington Dulles to Seoul?

As of May 2025, there are 25 flights per week flying from Washington Dulles to Seoul.

Q: When is the cheapest time to fly from Washington Dulles to Seoul?

The cheapest month to fly from Washington Dulles to Seoul is usually May 2025.

Q: Which is the cheapest airport to fly into in Seoul?

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 $1,451 .

Q: Which upcoming date is cheapest to fly from Washington Dulles Airport to Seoul on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to Seoul on Wednesday, 26 November 2025 .

Q: Can I get a direct flight from Washington Dulles Airport to Seoul?

Yes – the average flight time is 15 hours and 34 minutes.

Q: How can I get the best flight deal from Washington Dulles Airport to Seoul?

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.

Compare Washington Dulles to Seoul flight deals

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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.$1,451 per passenger.Departing Wed, 26 Nov, returning Thu, 11 Dec.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Wed, 26 Nov, arriving in Incheon International.Inbound indirect flight with Turkish Airlines, departs from Incheon International on Thu, 11 Dec, arriving in Washington Dulles.Price includes taxes and charges.From $1,451, select.

Seoul.$1,451 per passenger.Departing Tue, 3 Mar, returning Tue, 24 Mar.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Tue, 3 Mar, arriving in Incheon International.Inbound indirect flight with Turkish Airlines, departs from Incheon International on Tue, 24 Mar, arriving in Washington Dulles.Price includes taxes and charges.From $1,451, select.

Seoul.$1,453 per passenger.Departing Tue, 2 Sep, returning Tue, 11 Nov.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Tue, 2 Sep, arriving in Incheon International.Inbound indirect flight with Turkish Airlines, departs from Incheon International on Tue, 11 Nov, arriving in Washington Dulles.Price includes taxes and charges.From $1,453, select.

Seoul.$1,453 per passenger.Departing Mon, 27 Oct, returning Thu, 13 Nov.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Mon, 27 Oct, arriving in Incheon International.Inbound indirect flight with Turkish Airlines, departs from Incheon International on Thu, 13 Nov, arriving in Washington Dulles.Price includes taxes and charges.From $1,453, select.

Seoul.$1,453 per passenger.Departing Mon, 3 Nov, returning Wed, 12 Nov.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Mon, 3 Nov, arriving in Incheon International.Inbound indirect flight with Turkish Airlines, departs from Incheon International on Wed, 12 Nov, arriving in Washington Dulles.Price includes taxes and charges.From $1,453, select.

Seoul.$1,472 per passenger.Departing Tue, 30 Dec, returning Fri, 30 Jan.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Tue, 30 Dec, arriving in Incheon International.Inbound indirect flight with Turkish Airlines, departs from Incheon International on Fri, 30 Jan, arriving in Washington Dulles.Price includes taxes and charges.From $1,472, select.

Seoul.$1,472 per passenger.Departing Mon, 29 Sep, returning Fri, 17 Oct.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Mon, 29 Sep, arriving in Incheon International.Inbound indirect flight with Turkish Airlines, departs from Incheon International on Fri, 17 Oct, arriving in Washington Dulles.Price includes taxes and charges.From $1,472, select.

Seoul.$1,484 per passenger.Departing Sun, 29 Mar, returning Fri, 3 Apr.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Sun, 29 Mar, arriving in Incheon International.Inbound indirect flight with Turkish Airlines, departs from Incheon International on Fri, 3 Apr, arriving in Washington Dulles.Price includes taxes and charges.From $1,484, 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 March.

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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 found	$1,451
Cheapest month to fly	November
Average flight time	15 hrs, 34 mins
Most popular airline	Delta
Average flights per week	69

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

How many airports are there in Seoul?

How much are return flights from Washington Dulles to Seoul?

How long does it take to fly from Washington Dulles to Seoul?

Which airlines fly direct from Washington Dulles to Seoul?

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

When is the cheapest time to fly from Washington Dulles to Seoul?

Which is the cheapest airport to fly into in Seoul?

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

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

How can I get the best flight deal from Washington Dulles Airport to Seoul?

When is the best time to book flights to Seoul?

What’s the weather like in Seoul?

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

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

Approximately 13 hours 40 minutes is how long you can expect to be in the air on a direct flight from Washington Dulles International Airport to Seoul.
Seoul is 13 hours ahead of Washington DC, where Washington Dulles International Airport is located. Seoul runs on the UTC+9 timezone.
Washington Dulles International Airport (IAD) to Incheon International Airport (ICN) is the most traveled route, with seven flights a week to pick from. You can fly from IAD to ICN at 11:50 with Korean Air.
To avoid rushing for your IAD to Seoul flight, allow plenty of time to check in and drop off your luggage. Arriving two hours ahead of international departures and one hour before domestic flights is the general rule.
Heading away during a peak period like school or public holidays? Expect longer lines at check-in and security. To play it safe, arrive up to four hours before international flights and two hours before domestic departures.
Start your journey at IAD and fly straight to Incheon International Airport (ICN). That's where you can expect to land when searching for Washington Dulles International Airport to Seoul tickets.
Keep your eyes peeled for promotions from Korean Air. This carrier operates direct flights from Washington Dulles International Airport to Seoul.
Think about adding a stopover to potentially save on your flight ticket from IAD to Seoul. All you need to do is uncheck 'Direct flights only' during your search. Give yourself a breather (and maybe even a better deal) by stopping at one of these popular airports:
- Hartsfield-Jackson Atlanta International Airport (ATL)
- Haneda Airport (HND)
- Beijing Capital International Airport (PEK)
Located around 40 kilometres from the centre of Washington DC, IAD can be reached in about 50 minutes by car, depending on traffic. Travelling on public transport takes roughly 1 hour 10 minutes.
Searching for a hotel close to IAD? If you've booked an early flight from Washington Dulles International Airport to Seoul, these accommodation options will put you moments from check-in:
When it comes to Washington Dulles International Airport's on-time performance, data shows 74.39% of flights arrive within the scheduled time frame.
IAD's address is 1 Saarinen Circle.

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

$711 is the cheapest price we've seen for a one-way Washington Dulles International Airport to Seoul flight. A round-trip flight ticket right now is $1,451. Depending on when you book and the availability, these fares could change.
To snag cheap flights from IAD to Seoul, reserve your trip seven months before your departure date.
Organise your trip for November. That's the best month for scoring an awesome deal on Washington Dulles International Airport to Seoul tickets. If you're flexible on when you fly, use the 'Whole month' tool to access the cheapest price across every month.
Finding a cheap flight from IAD to Seoul is easy with Price Alerts. All you need to do is set up one of these automatic notifications and we'll notify you as soon as a better deal is available.
Tailor your flights with filters. Choose your ideal departure and arrival times, airlines and total journey duration. You can also sort the results by 'Cheapest,' 'Best' or 'Fastest' flights from Washington Dulles International Airport to Seoul.

Airports in Seoul

Incheon International Airport (ICN)

The centre of Seoul is around 48 kilometres from Incheon International Airport (ICN). How long it takes to drive there will vary based on traffic conditions and time of day, so do some research ahead of your trip.
If you're taking public transport, expect a journey time of around 1 hour 45 minutes.
The last thing you need is a long journey to your hotel if you're arriving on a late flight from Washington Dulles International Airport to Seoul. Book one of these accommodation options near ICN instead:
Travel at your own speed with an Incheon International Airport rental car. Book your wheels from WECAR, Hi Rent A Car or Alamo and find adventure across Seoul and beyond.
Reserving your ride from Incheon International Airport around four weeks ahead of your flight from IAD to Seoul can help you lock in the lowest rate.

Gimpo International Airport (GMP)

If you're staying in central Seoul (or just want to see the sights straight away), the city is around 16 kilometres from Gimpo International Airport (GMP). Keep an eye out for any information kiosks for help with directions after hopping off your flight from Washington Dulles International Airport to Seoul.
You can expect the trip to take about 1 hour 5 minutes on public transport.
You'll find some great places to park your luggage (and yourself) near GMP. Unwind and get cosy after your IAD to Seoul flight at any of these well-located options:
Forget about inconvenient public transport schedules or long cab queues. Pick up a Gimpo International Airport rental car and let your trip unfold on your terms. Check out the rates and availability from GOGO Rent a Car, Gogo Rental Car Seoul and Hi Rent A Car.
Call dibs on the best options. Securing your ride from GMP one week ahead of time often means more savings and a wider range of vehicles.

Best time to go to Seoul

Before securing your flights from Washington Dulles International Airport to Seoul, consider which time of year is best for you. Peak season in Seoul offers a bustling atmosphere and plenty of things to do, while low season means you'll get cheaper deals on hotels and fewer crowds.
Book a Washington Dulles International Airport to Seoul flight ticket with a departure in August if you're eager to visit the city during its warmest month. Expect temperatures to range from 19ºC (66ºF) to 32ºC (90ºF).
Look for cheap tickets from IAD to Seoul in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between -12ºC (10ºF) and 4ºC (39ºF) on average.

More about Seoul

When it comes to searching for somewhere to rest your head, you'll find the top stays in Seoul right here. Check out these options after locking in your flight from Washington Dulles International Airport to Seoul:
There are so many things to do and see in this city it can be hard to know where to begin. Bukchon Hanok Village, Gyeongbokgung Palace and N Seoul Tower are popular attractions which should feature on any good Seoul itinerary.

Explore more of South Korea

You've done Seoul, now it's time to discover other corners of South Korea. Travel around 322 kilometres south-east to Busan to check off its top attractions. From Haeundae Beach to Gamcheon Culture Village and Beomeosa Temple, you've got a jam-packed schedule ahead.
Around 241 kilometres south-east of Seoul, Daegu is another favourite stop in South Korea. Start your sightseeing at Duryu Park People's Garden, E-World and Apsan Park.