The Washington–Seoul route
IAD–ICN is a long-haul pairing from the United States to Seoul: roughly 6,944 miles. This city pair is usually a connecting trip: about 6,944 miles of flying, with the shortest timed itineraries near 14 hours plus a layover. Overnight westbound is common; compare arrival local time, not only the duration field.
For IAD–ICN we show about $509 on the low end and around $885 as a more typical one-way economy total, USD, last reviewed August 2026. Long-haul sale banners expire; a $509 one-way is a planning floor, not a coupon. Taxes, bags, and seats change what you pay on the seller site.
Search IAD to ICN on Azurovia, compare airline-direct and travel-site totals on the same flights, then finish with the seller. We do not ticket. Keep their confirmation for changes.
Distance and time IAD–ICN
Washington and Seoul sit about 6,944 miles apart. If a nonstop is missing from IAD, timed itineraries near 14 hours of flying usually mean one long-haul plus a shorter feeder — not two equal hops.
Seoul is about 14 hours ahead of Washington on standard time (America/New_York vs Asia/Seoul). Arrival clocks on ICN are local. That matters more on this pair than on a same-zone hop.
Most Washington–Seoul journeys connect rather than fly nonstop from IAD. Timed one-stop itineraries often bank at Los Angeles International (LAX), San Francisco International (SFO), Seattle-Tacoma International (SEA). That is a pattern, not a promise for your dates. On results, sort by fastest if you care about layover pain, or cheapest if you do not.
Airports for Washington to Seoul
You depart Washington Dulles International in Washington, United States, and arrive at Incheon International in Seoul, South Korea. IAD is the origin code we use on this guide; ICN is the arrival code. If you need a visa or an ESTA, that is between you and the destination government — Azurovia does not ticket and does not process immigration.
Near Washington, also compare DCA (Washington), BWI (Baltimore). ICN is the arrival code we treat as primary for Seoul. A cheaper nearby airport only wins if the transfer still fits your plan. Search with “include nearby airports” when you want those codes in one results list.
Airport pages: IAD Washington Dulles International · ICN Incheon International · DCA · BWI
City hubs: Flights from Washington · Flights to Seoul
Bags on IAD–ICN
Long-haul IAD–ICN fares sometimes include a checked bag on the airline site and unbundle it on a travel site, or the reverse. Rank the USD total you will actually pay, including bags, before you click out. Azurovia does not ticket.
Airlines often shown
American Airlines is among the names that commonly appear on IAD–ICN, alongside ANA, Japan Airlines, Korean Air. That is who often operates or sells this city pair in our catalog, not a daily guarantee. Live search is the inventory that exists for your dates.
When people fly
On Washington–Seoul, demand is often softer in Mar and Apr, with Oct and Nov also worth checking. US holidays still reprice this pair. Move a day on the results strip before you assume the first date you typed is the cheapest.
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Questions about this city pair
How long is the flight from Washington to Seoul?
There is usually no nonstop. Plan on about 14 hours of flying (6,944 miles) plus layover time.
When are Washington to Seoul fares often lower?
Demand is usually softer in Mar and Apr on this route, but live prices move daily. Search a few nearby dates rather than assuming a season is always cheapest.
Which airlines fly Washington to Seoul?
Sellers commonly show American Airlines, ANA, Japan Airlines, Korean Air on this city pair. The set on any given day depends on schedule and which travel sites return a fare.
What do Washington–Seoul tickets usually cost?
Guide one-way economy totals cluster around $885, with sales near $509, in USD. Those are not a quote — live search is the price that matters.
Should I fly a nearby airport instead of IAD–ICN?
From Washington, DCA, BWI sometimes undercut IAD. Add transfer time. Include nearby airports on search when you want those codes in one list.
Do I book Washington–Seoul with Azurovia?
No. Azurovia is a US metasearch. You compare airline and travel-site totals here, then complete the ticket with the seller you choose.