Cheap flights from Washington to Seoul
from 423 US$
From 1542 USD — compare hundreds of airlines
The cheapest month is usually 2026-11 · 423 US$
See prices for my dates →Live fares from 100+ sites — free, with no hidden fees.
About this route
Compare flights from Washington to Seoul, a about 11,165 km route (around 14h 27m nonstop). We gather live prices from hundreds of airlines and agencies so you can find the cheapest and book on the official site, with no hidden fees. Direct flights are available. Airlines such as Delta, Korean Air operate this route.
When to buy and when to fly
Prices by date
Fares found by date — cheapest days in green.
How to get the best price
Airlines on this route
FAQ
What's the cheapest month to fly Washington to Seoul?
It's usually 2026-11, from 423 USD. Use the price calendar to compare other dates.
How long is the flight from Washington to Seoul?
A nonstop flight takes about 14h 27m and covers around 11,165 km. Connecting itineraries take longer.
Are there direct flights from Washington to Seoul?
Yes, this route has nonstop flights. Filter by "nonstop" to see them.
Which airlines fly from Washington to Seoul?
Delta, Korean Air operate this route, among others. Compare them all in the results.
When should I book Washington–Seoul flights?
As a rule of thumb, booking 3–8 weeks ahead and avoiding weekends and holidays tends to give the best prices. Use the calendar to spot the cheapest dates.
Compare your dates in seconds
Washington → Seoul · Live fares from 100+ sites — free, with no hidden fees.