Cheap Flights from Washington, D.C. to Seoul

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Flight deals from Washington, D.C. to Seoul

Looking for a cheap last-minute deal or the best round-trip flight from Washington, D.C. to Seoul? Find the lowest prices on one-way and round-trip tickets right here.

Seoul.$789 per passenger.Departing Thu, Jan 29, returning Sun, Feb 8.Round-trip flight with Frontier Airlines and T'way Air.Outbound indirect flight with Frontier Airlines, departing from Washington Dulles on Thu, Jan 29, arriving in Incheon International.Inbound indirect flight with T'way Air, departing from Incheon International on Sun, Feb 8, arriving in Baltimore Washington International.Price includes taxes and charges.From $789, select.

Seoul.$798 per passenger.Departing Mon, Feb 2, returning Tue, Feb 17.Round-trip flight with Spirit Airlines and T'way Air.Outbound indirect flight with Spirit Airlines, departing from Baltimore Washington International on Mon, Feb 2, arriving in Incheon International.Inbound indirect flight with T'way Air, departing from Incheon International on Tue, Feb 17, arriving in Baltimore Washington International.Price includes taxes and charges.From $798, select.

Seoul.$847 per passenger.Departing Tue, Jan 13, returning Tue, Jan 27.Round-trip flight with Spirit Airlines and T'way Air.Outbound indirect flight with Spirit Airlines, departing from Baltimore Washington International on Tue, Jan 13, arriving in Incheon International.Inbound indirect flight with T'way Air, departing from Incheon International on Tue, Jan 27, arriving in Baltimore Washington International.Price includes taxes and charges.From $847, select.

Seoul.$898 per passenger.Departing Fri, Apr 24, returning Fri, May 8.Round-trip flight with Air China.Outbound indirect flight with Air China, departing from Washington Dulles on Fri, Apr 24, arriving in Gimpo International.Inbound indirect flight with Air China, departing from Incheon International on Fri, May 8, arriving in Washington Dulles.Price includes taxes and charges.From $898, select.

Seoul.$898 per passenger.Departing Tue, Apr 7, returning Tue, Apr 14.Round-trip flight with Air China.Outbound indirect flight with Air China, departing from Washington Dulles on Tue, Apr 7, arriving in Incheon International.Inbound indirect flight with Air China, departing from Incheon International on Tue, Apr 14, arriving in Washington Dulles.Price includes taxes and charges.From $898, select.

Seoul.$908 per passenger.Departing Tue, Mar 24, returning Mon, Jun 1.Round-trip flight with Air China.Outbound indirect flight with Air China, departing from Washington Dulles on Tue, Mar 24, arriving in Incheon International.Inbound indirect flight with Air China, departing from Incheon International on Mon, Jun 1, arriving in Washington Dulles.Price includes taxes and charges.From $908, select.

Seoul.$931 per passenger.Departing Sat, Feb 14, returning Fri, Mar 6.Round-trip flight with Frontier Airlines and Air Premia.Outbound indirect flight with Frontier Airlines, departing from Baltimore Washington International on Sat, Feb 14, arriving in Incheon International.Inbound indirect flight with Air Premia, departing from Incheon International on Fri, Mar 6, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $931, select.

Seoul.$961 per passenger.Departing Sun, Mar 1, returning Mon, Mar 9.Round-trip flight with Frontier Airlines and Air Premia.Outbound indirect flight with Frontier Airlines, departing from Washington Ronald Reagan on Sun, Mar 1, arriving in Incheon International.Inbound indirect flight with Air Premia, departing from Incheon International on Mon, Mar 9, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $961, select.

Find the cheapest month to fly from Washington, D.C. to Seoul

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington, D.C. to Seoul flights are currently cheapest in February.

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Direct flights from Washington, D.C. to Seoul

Alternative Washington, D.C. to Seoul routes

Looking for the cheapest, fastest or easiest route from Washington, D.C. 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	$789
Cheapest month to fly	January
Average flight time	15 hrs, 33 mins
Most popular airline	Delta
Average flights per week	18

Finding cheap flights from Washington, D.C. to Seoul: Frequently asked questions

How many airports are there in Seoul?

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

How much are round-trip flights from Washington, D.C. to Seoul?

The best price we found for a round-trip flight from Washington, D.C. to Seoul is $789. 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, D.C. to Seoul?

15 hours and 33 minutes is the average flight time from Washington, D.C. to Seoul.

Which airlines fly direct from Washington, D.C. to Seoul?

Delta, Korean Air and Air Premia fly direct from Washington, D.C. to Seoul.

How many flights are there a week from Washington, D.C. to Seoul?

There are 18 flights per week flying from Washington, D.C. to Seoul, as of December 2025.

When is the cheapest time to fly from Washington, D.C. to Seoul?

The cheapest month to fly from Washington, D.C. to Seoul is usually January.

What's the cheapest airport to fly to in Seoul?

If you're flying from Washington, D.C., the cheapest airport near Seoul is Incheon International – which is 47.8 km away from the center of Seoul. We've found flights to this airport from $789.

Which upcoming date is cheapest to fly from Washington, D.C. to Seoul on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Washington, D.C. to Seoul on Thursday, January 29, 2026.

Can I get a direct flight from Washington, D.C. to Seoul?

Yes – the average flight time is 15 hours and 33 minutes.

How can I get the best flight deal from Washington, D.C. 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.

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.

What’s the weather like in Seoul?

In December, the average temperature is usually around -1°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.

Which is the cheapest airline to fly with from Washington, D.C. to Seoul?

The cheapest airline that flies to Seoul is Frontier Airlines, and the cheapest airline that flies to Incheon International Airport is Air Premia.

Traveling from Washington DC to Seoul: what you need to know

You can choose from multiple airports when planning your flight from Washington DC to Seoul. Explore your options for jetting out of Washington DC from Ronald Reagan National Airport (DCA), Washington Dulles International Airport (IAD) and Baltimore/Wash International Thurgood Marshall Airport (BWI).
Incheon International Airport (ICN) and Gimpo International Airport (GMP) are Seoul's chief entry points.
Take a direct Washington DC to Seoul flight and you'll be flying for an average of 15 hours 30 minutes.
Seoul is 13 hours ahead of Washington DC and is in the UTC+9 timezone.
For stress-free travel, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This ensures you have enough time to catch your Washington DC to Seoul flight.
You can expect longer lines during popular months such as July. Arriving up to four hours ahead of international flights and two hours for domestic departures will help ensure a smooth travel experience.

How to find the cheapest flights from Washington DC to Seoul

Booking ahead of time is often the key to finding a cheap Washington DC to Seoul flight. Flight prices rise as demand increases, so the closer your departure date, the more you'll likely spend.
Finding cheap plane tickets from Washington DC to Seoul is easier if you can be flexible with your travel plans. Try using the 'Whole month' search tool to see the lowest fares across every month and walk away with a great deal.
Locking in a cheap flight from Washington DC to Seoul couldn't be easier with Price Alerts. Simply set up one of these automatic alerts and we'll let you know as soon as a better deal is available.
Find an affordable Washington DC to Seoul flight with the help of our filters. Select your preferred duration, departure time and airlines, then sort the results by 'Cheapest' for the best deals.

Flying from Washington DC

Ronald Reagan National Airport (DCA)

We make it a breeze to find a Washington DC to Seoul flight with a stopover. To see all your options departing from Ronald Reagan National Airport, uncheck 'Direct flights only.' Then, simply pick a flight that has a stop long enough to tour the city of your choice. Popular stopovers include:
- O'Hare International Airport (ORD)
- Logan International Airport (BOS)
- Pearson International Airport (YYZ)
Located around 6 kilometers from the center of Washington DC, DCA can be reached in about 15 minutes by car (depending on traffic). The journey by public transport is roughly 45 minutes.
Want a convenient hotel near Ronald Reagan National Airport? If you're catching an early flight from Washington DC to Seoul, these stays will put you nice and close to your departure gate:
When it comes to the on-time performance of Ronald Reagan National Airport, data shows 76.44% of flights complete their journey on time.
DCA is located at 1 Aviation Circle.

Washington Dulles International Airport (IAD)

Prefer to jet off from Washington Dulles International Airport (IAD)? This hub offers nonstop flights from Washington DC to Seoul, seamlessly connecting you to Incheon International Airport (ICN).
Book a direct Washington DC to Seoul plane ticket with Korean Air. This is one of the top airlines that operates this route out of IAD.
Get the most out of your vacation with a stopover on your Washington DC to Seoul flight. Visit friends or family or tick a new city off your list. Whatever you decide to do, check out these stops between Washington Dulles International Airport and Seoul:
- Hartsfield-Jackson Atlanta International Airport (ATL)
- Haneda Airport (HND)
- Beijing Capital International Airport (PEK)
You can reach IAD from the center of Washington DC in about 50 minutes by car, depending on traffic conditions. The ride by public transport will take roughly 1 hour 10 minutes to cover the 40 kilometers or so.
Kick off your vacation early with an extra night away from home. Before catching your flight from Washington DC to Seoul, kick back in one of these hotels close to Washington Dulles International Airport:
74% of all departures from Washington Dulles International Airport meet their expected arrival time.
You'll find IAD at 1 Saarinen Circle.

Baltimore/Wash International Thurgood Marshall Airport (BWI)

Lock in a ticket from Washington DC to Seoul out of Baltimore/Wash International Thurgood Marshall Airport (BWI) with a stop or two. Popular stopovers between BWI and Seoul include:
- Minneapolis-St. Paul International Airport (MSP)
- Detroit Metropolitan Wayne County Airport (DTW)
- Harry Reid Airport (formerly McCarran Airport) (LAS)
BWI is roughly 40 kilometers from central Washington DC. The drive from the city center to the airport takes about 50 minutes. If you're thinking about using public transport, expect a journey time of around 1 hour 30 minutes.
Make taking an early Washington DC to Seoul flight the easiest part of your trip. Stay at one of these hotels near Baltimore/Wash International Thurgood Marshall Airport and get to your check-in counter with plenty of time to spare:
Airports have an on-time performance rating that tracks how often flights land as expected. At BWI, that rate is 77.13%.

Arriving in Seoul

Incheon International Airport (ICN)

Central Seoul is roughly 48 kilometers from Incheon International Airport (ICN). How long it takes to drive there will vary depending on time of day and traffic conditions, so do a little research ahead of time.
If you're traveling on public transport, expect a journey time of roughly 1 hour 45 minutes.
Reserve a hotel near ICN if you have a late flight from Washington DC to Seoul. Settle into one of these accommodation options and skip the long transfer:
Go where the road takes you with an Incheon International Airport rental car. Book your wheels from WECAR, Hi Rent A Car or Alamo and see more of Seoul and beyond.
To get the lowest price, book your vehicle from Incheon International Airport around four weeks ahead of your Washington DC to Seoul flight.

Gimpo International Airport (GMP)

Gimpo International Airport (GMP) is approximately 16 kilometers from the center of Seoul. Explore your options for making your way into town after your flight from Washington DC to Seoul has touched down.
If you hop on public transport, you'll reach the center in 1 hour 5 minutes or so.
Place the 'Do not disturb' sign on your door and rest at a hotel close to GMP. Here are a few options where you can take a load off after your flight from Washington DC to Seoul:
Forget about public transport schedules or cab lines. Pick up a Gimpo International Airport rental car and go in any direction that inspires you. Compare availability and rates from GOGO Rent a Car, Gogo Rental Car Seoul and Hi Rent A Car.
Snap up the best price by securing your ride from GMP one week in advance. You can also expect to have a greater range of vehicles.

Best time to go to Seoul

July is the busiest month for flights from Washington DC to Seoul. To escape the crowds, head to Seoul in April.
When booking your Washington DC to Seoul tickets, consider the kind of weather you prefer. August is the warmest month in Seoul, with temperatures ranging from 19ºC (66ºF) to 32ºC (90ºF).
Look for cheap flights from Washington DC 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

After booking your flight from Washington DC to Seoul, take your pick from prime hotels that put you close to the action. Make one of these accommodation options your base for exploring Seoul:
Gyeongbokgung Palace and Bukchon Hanok Village are a couple of major attractions to add to your Seoul travel itinerary. Keep the adventure rolling by checking out N Seoul Tower.

Explore more of South Korea

Busan is just one of the many places in South Korea waiting to be discovered after you've experienced Seoul. Around 322 kilometers to the south-east, check out popular attractions including Haeundae Beach, Gamcheon Culture Village and Beomeosa Temple.
If you want to check out another major destination in South Korea, consider Incheon, about 56 kilometers west of Seoul. Lawn Square of Incheon International Airport, Yeongjong Sky City No.23 Park and 스카이72 GC 바다코스 are highlights.