C$684 Cheap Flights from Washington D.C. (WASA) to Incheon International (ICN)

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Flight deals from Washington D.C. to Incheon International

Looking for a cheap last-minute deal or the best return flight from Washington D.C. to Incheon International Airport? If you want to travel next month, return fares start from C$1,728. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Washington D.C. to Incheon International from C$684 one-way

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

Which airlines fly from Washington D.C. to Incheon International?

Washington D.C. to Incheon International: Alternative routes

Compare routes from Washington D.C. to Seoul below. You may find an airport to fly into that's cheaper, faster, or easier than Incheon International.

Washington D.C. to Seoul: Flight information

The things to know before you go.
Cheapest flight foundC$684
Cheapest month to flySeptember
Average flight time15 hrs, 33 mins
Most popular airlineDelta
Average flights per week19

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

The best price we found for a return flight from Washington D.C. to Incheon International is C$1,442. 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 33 minutes is the average flight time from Washington D.C. to Incheon International.
Delta, Korean Air and Air Premia fly direct from Washington D.C. to Incheon International.
As of May 2026, there are 19 flights per week flying from Washington D.C. to Incheon International.
The cheapest month to fly from Washington D.C. to Incheon International is usually September.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Washington D.C. to Incheon International Airport on Monday, September 28, 2026.
Yes – the average flight time is 15 hours and 33 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 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.
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.
The cheapest airline that flies to Incheon International is Air Premia .

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

  • When searching for a flight from Washington DC to Incheon International Airport (ICN), there's a nice range of airports you can jet off from. Ronald Reagan National Airport (DCA), Washington Dulles International Airport (IAD) and Baltimore/Wash International Thurgood Marshall Airport (BWI) are among Washington DC's main options.

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

  • Ronald Reagan National Airport (DCA) to Incheon International Airport (ICN) is the most popular route. There are 8 direct weekly departures to pick from. If you prefer a later start to the day, hop on the last flight with Korean Air at 13:40. Go for the first DCA to ICN departure with Korean Air at 11:50 if you want to get going earlier.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for hassle-free flying. Be at the airport on time to catch your flight from Washington DC to ICN.

  • July is a peak travel month. If you're taking off then or during a major holiday like Christmas or Thanksgiving, be there even earlier. Aim for at least two hours ahead for domestic flights and as much as four hours for international journeys.

Airports in Washington DC

Ronald Reagan National Airport (DCA)

  • Stopovers are the perfect opportunity to break up your trip — and perhaps even visit a new city. When browsing flights from Washington DC to ICN leaving from Ronald Reagan National Airport (DCA), uncheck the 'Direct flights only' box to see where you can stop along the way. Consider one of these popular options:

    • Logan International Airport (BOS)

    • Pearson International Airport (YYZ)

    • O'Hare International Airport (ORD)

  • From the centre of Washington DC, DCA is around 8 kilometres away. Check the official airport website or use navigation apps to work out the best way to get there.

  • Want a leisurely start to your travels? Stay near Ronald Reagan National Airport. Whether you're taking an early flight from Washington DC to Incheon International Airport or just don't like being rushed, these hotels are ideal:

Washington Dulles International Airport (IAD)

  • Looking to fly out of Washington Dulles International Airport (IAD)? You can reserve a direct flight from Washington DC to Incheon International Airport (ICN) departing from this busy hub.

  • Korean Air operates direct flights from Washington DC to ICN leaving from IAD. Book your favourite window seat and arrive at your destination in a single stretch.

  • Break up your flight from Washington DC to Incheon International Airport with a stop so you can stretch your legs or tick a new place off your list. Some great stopovers between Washington Dulles International Airport and ICN are:

    • O'Hare International Airport (ORD)

    • Pearson International Airport (YYZ)

    • Logan International Airport (BOS)

  • With public transport, you can travel from central Washington DC to IAD in around 3 hours and 26 minutes. The airport is roughly 56 kilometres away, and making the trip by car takes approximately 51 minutes.

  • It's your vacation, so why not spend an additional night away? Think about checking in to one of these accommodation options near Washington Dulles International Airport the day before your flight from Washington DC to ICN:

About Incheon International Airport (ICN)

Getting from Incheon International Airport (ICN) to central Seoul

  • Incheon International Airport is about 48 kilometres from central Seoul. The time it takes to get to the centre by cab or car rental will depend on the time of day. Do some research before you go.

  • Getting there on public transport takes around 1 hour and 44 minutes.

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

  • C$684 is the cheapest price we've seen for a one-way ticket from Washington DC to Incheon International Airport. Return flights start from C$1,442. Prices may vary depending on availability at the time of booking.

  • Don't leave things to the last moment. You're more likely to find flight tickets from Washington DC to ICN if you book early. Airlines often offer some amazing early bird deals.

  • If you're flexible with your trip dates, use the 'Whole month' tool. It'll give you the lowest price in every month when searching for your ticket from Washington DC to Incheon International Airport.

  • Create a Price Alert and keep track of changes on this route through email or push notifications. We'll let you know when prices go down. Timing is key when finding flight tickets from Washington DC to ICN.

  • Make the most of the filters to find your ideal journey. To see the 'Fastest,' 'Best' or 'Cheapest' flights from Washington DC to Incheon International Airport, use the 'Sort by' tool. You can also filter results by airline, arrival and departure times, and number of stops.

The best time to fly from Washington DC to Incheon International Airport (ICN)

  • April is the quietest time of year to travel to Seoul. Alternatively, join the crowds and get away in July. This is the busiest month for flights from Washington DC to Incheon International Airport.

  • Before you book a flight from Washington DC to ICN, think about the type of weather you enjoy. 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 flight from Washington DC to Incheon International Airport in January when temperatures average between -12ºC and 4ºC.

More about Seoul

  • When it comes to looking for somewhere to lay your head, you'll find the top stays in Seoul right here. Check out these options as soon as you've booked your flight from Washington DC to Incheon International Airport:

  • All great journeys should include some sightseeing. Gyeongbokgung Palace, Bukchon Hanok Village and N Seoul Tower are essential stops on your Seoul itinerary.

Complete your Seoul trip with a car rental

  • Grab the keys to one of our car rentals in Seoul and see the sights on your own terms. Easily compare prices from trusted rental companies in one place after booking your hotel and cheap flights from Washington DC to Incheon International Airport.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.