$405 Find Cheap Flights from Washington to South Korea

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to South Korea.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington to South Korea is likely to change within 7 days, so travelers know whether to wait or book now.

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Washington to South Korea with an airline and back with another airline.

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Washington to South Korea up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in South Korea is Incheon Intl Airport (ICN), with an average flight price of $619.

Based on KAYAK data, the cheapest day to fly to South Korea is Monday where round-trip tickets can be as cheap as $926. On the other hand, the most expensive day to fly is Friday, where round-trip prices are $1,072 on average.

The cheapest time of day to fly to South Korea is generally in the morning, when round-trip flights cost $945 on average. Morning departures are around 25% cheaper than evening flights, on average. The most expensive time of day to fly to South Korea is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,259.

The cheapest ticket to South Korea from Washington found in the last 72 hours was to Incheon Intl Airport, at $699 round-trip. The most popular route is Seattle (SEA) to Incheon Intl Airport (ICN) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $699.

The cheapest month for flights from Washington to South Korea is February, when tickets cost $971 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is $1,692 and $1,580 respectively.

To get a below average price on the flight from Washington to South Korea, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

An average nonstop flight from Washington to South Korea takes 21h 54m, covering a distance of 5281 miles. The shortest route is Seattle (SEA) to Incheon Intl Airport (ICN) with an average flight time of 11h 20m.

Based on KAYAK flight searches, the most popular destination is Busan (59% of total searches to South Korea). The next most popular destinations are Jeju City (29%) and Daegu (9%). Searches for flights to Wonju (3%) are also popular.