C$787 Cheap Flights from Seoul (SELA) to Washington D.C. (WASA)

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Find the cheapest month or even day of the year to fly to Washington D.C.

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Flight deals from Seoul to Washington D.C.

Looking for a cheap last-minute deal or the best return flight from Seoul to Washington D.C.? If you want to travel next month, return fares start from C$1,470. Find the lowest prices on one-way and return tickets right here.

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

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

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

Seoul to Washington D.C.: Flight information

The things to know before you go.
Cheapest flight foundC$787
Cheapest month to flySeptember
Average flight time13 hrs, 42 mins
Most popular airlineDelta
Average flights per week76

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

There are 5 airports in Washington D.C.: Washington Ronald Reagan, Camp Springs Andrews AFB, Washington Dulles, Baltimore Washington International, and Manassas.
The best price we found for a return flight from Seoul to Washington D.C. is C$1,368. 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.
13 hours and 42 minutes is the average flight time from Seoul to Washington D.C..
Delta, Korean Air and Air Premia fly direct from Seoul to Washington D.C..
As of June 2026, there are 76 flights per week flying from Seoul to Washington D.C..
The cheapest month to fly from Seoul to Washington D.C. is usually September.
If you're flying from Seoul, the cheapest airport near Washington D.C. is Washington Dulles – which is 36.5 km away from the centre of Washington D.C.. We've found flights into this airport from C$1,368.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seoul to Washington D.C. on Friday, September 18, 2026.
Yes – the average flight time is 13 hours and 42 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 Washington D.C. 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 Washington D.C. is around 40 days in advance, so don’t leave your flight to the last minute.
In June, the average temperature is usually around 22°C. July is typically the warmest month in Washington D.C., when it usually averages around 31°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging -4°C. The rainiest month is September.
The cheapest airline that flies to Washington D.C. is United. And the cheapest airline that flies to Camp Springs Andrews AFB Airport is Air Premia.

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

  • Seoul has two main airports where you can start your adventure. Check out your options for reserving a flight from Seoul to Washington DC flying out of Incheon International Airport (ICN) or Gimpo International Airport (GMP).

  • When jetting into Washington DC, get off the plane at Ronald Reagan National Airport (DCA) or Washington Dulles International Airport (IAD). Baltimore/Wash International Thurgood Marshall Airport (BWI) is another major hub in this city.

  • 13 hours 41 minutes is the average duration of a direct flight from Seoul to Washington DC. Following the UTC-4 timezone, Washington DC is 13 hours behind Seoul.

  • Incheon International Airport (ICN) to Washington Dulles International Airport (IAD) is the most traveled route between these two cities. There are 10 weekly departures to choose from. If you have things to finalize before heading off, the last flight from Seoul to Washington DC is with Korean Air at 10:25. Choose the first ICN to IAD departure with Korean Air at 10:15 to maximize your time in Washington DC.

  • To ensure you catch your flight from Seoul to Washington DC, allow plenty of time to check in and drop off your luggage. Arriving two hours before international departures and one hour before domestic flights is the general travel rule.

  • If you're jetting off during a major holiday or other peak period, give yourself more time. A good rule is two hours ahead of domestic flights and up to four hours before international departures. Queues at check-in and security will be longer.

  • You will need an ETA for United States if you hold a passport from South Korea and are travelling for tourism purposes. Travel documentation and visa requirements can change. So before you book your cheap flights from Seoul to Washington DC, check with your airline and the destination country's local embassy or consulate for the latest information.

Flying from Seoul

Incheon International Airport (ICN)

  • If you're after a direct flight from Seoul to Washington DC, you can depart from Incheon International Airport (ICN). Travel from ICN to Washington Dulles International Airport (IAD) without any stops.

  • When taking off from ICN, you can catch a direct flight from Seoul to Washington DC with Korean Air.

  • Think about adding a stopover to possibly find a cheaper flight from Seoul to Washington DC. Just uncheck 'Direct flights only' when searching for departures from Incheon International Airport. Take a pause at one of these popular options:

    • Hartsfield-Jackson Atlanta International Airport (ATL)

    • Logan International Airport (BOS)

    • Minneapolis-St. Paul International Airport (MSP)

  • Want a hassle-free start to your travels? Stay near Incheon International Airport. Whether you've booked an early flight from Seoul to Washington DC or want to avoid feeling rushed, these hotels are perfect:

Gimpo International Airport (GMP)

  • Make the most of your vacation with a stopover on your flight from Seoul to Washington DC. Visit family or friends or tick a new city off your bucket list. Whatever you decide to do, check out these stops between Incheon International Airport and Washington DC:

    • Hartsfield-Jackson Atlanta International Airport (ATL)

    • Logan International Airport (BOS)

    • Minneapolis-St. Paul International Airport (MSP)

  • Get a head start on your vacation with an extra night away from home. Before catching your flight from Seoul to Washington DC, stay in one of these hotels near Gimpo International Airport:

Arriving in Washington DC

Ronald Reagan National Airport (DCA)

  • Ronald Reagan National Airport (DCA) to the centre of Washington DC is around 16 minutes by car. It's approximately 8 kilometres away.

  • Getting there by public transport takes about 43 minutes.

  • Reserve a hotel close to DCA if you have a late flight from Seoul to Washington DC. Check in to one of these options and avoid the hassle of a long transfer:

Washington Dulles International Airport (IAD)

How to find the cheapest flights from Seoul to Washington DC

  • The lowest price we've found for a one-way ticket from Seoul to Washington DC is C$787. For a return flight on this route, the best price is C$1,367. Depending on when and how early you book, these fares could change.

  • Lock in cheap flights from Seoul to Washington DC by booking 1 month ahead. Based on our research, that's the sweet spot for finding a bargain.

  • Schedule your trip for September. That's the cheapest month for tickets from Seoul to Washington DC. If you're flexible with your travel dates, use the 'Whole month' tool to find the lowest price across every month.

  • Set up a Price Alert for cheap flights from Seoul to Washington DC. There's no need to look every day to see if prices have fallen. We'll update you the moment there's a change in price.

  • Use filters to find your ideal trip. To see the 'Fastest,' 'Best' or 'Cheapest' flights from Seoul to Washington DC, use the 'Sort by' function. You can also filter results by arrival and departure times, airline, and number of stops.

Best time to go to Washington DC

  • May is the quietest month for flights from Seoul to Washington DC, while July is the busiest. Figure out the ideal time to visit Washington DC based on whether you want a lively atmosphere or a more laid-back vibe.

  • Before locking in your flight from Seoul to Washington DC, think about the kind of weather you like. July is the warmest month in Washington DC, with temperatures ranging from 19ºC to 33ºC.

  • If you want to travel in cooler conditions, book a cheap ticket from Seoul to Washington DC in January when temperatures average between -6ºC and 10ºC.

More about Washington DC

  • Once you've booked your flight from Seoul to Washington DC, think about where you'd like to stay in this city. Make one of these accommodation options your base for exploring Washington DC:

  • White House Historical Association and The White House are just a couple of the big attractions to put on your Washington DC must-do list. Continue your sightseeing adventures at National Mall.

Complete your Washington DC trip with a car rental

  • Check out our lineup of car rentals once you've found your hotel and cheap flight from Seoul to Washington DC. Whether you're searching for a compact ride, an SUV or something in between, you can compare companies in one go to get the best deal.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.