$362 Find Cheap Flights from Washington to South Korea - Compare and Save

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.

Washington and South Korea are connected by different airlines. The airlines that fly that route the most regularly are Delta (18 flights per week), Korean Air (14 flights per week), and Alaska Airlines (6 flights per week).

There are 14 airports in South Korea. The busiest airport is Seoul Incheon Airport (ICN), with 54% of all flights arriving there.

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 $649.

Based on KAYAK data, the cheapest day to fly to South Korea is Wednesday where round-trip tickets can be as cheap as $669. On the other hand, the most expensive day to fly is Friday, where round-trip prices are $882 on average.

The cheapest time of day to fly to South Korea is generally in the afternoon, when round-trip flights cost $692 on average. The most expensive time of day to fly to South Korea is generally in the morning, which is peak travel time and where the average cost of a ticket is $874.

The cheapest ticket to South Korea from Washington found in the last 5 days was to Incheon Intl Airport, at $763 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 5 days was $763.

The cheapest month for flights from Washington to South Korea is September, when tickets cost $156 (return) on average. On the other hand, the most expensive months are May and June, when the average cost of round-trip tickets is $1,075 and $351 respectively.

To get a below average price on the flight from Washington to South Korea, you should book around 9 weeks before departure, which saves you about 10% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

From Washington, there are direct flights to South Korea from 1 city. This city is Seattle and there are 58 direct flights each week.

There are around 9 direct flights from within Washington to South Korea every day. Most flights (66%) depart in the afternoon.

Each week there are around 58 direct flights from within Washington to South Korea. The most common day for departures is Wednesday, with 17% of flights taking off on this day.

An average nonstop flight from Washington to South Korea takes 22h 40m, 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.

There are not any medium-haul (3-6 hour flight duration) or short-haul (up to 3 hour flight duration) flights to South Korea. Instead, there are 58 long-haul flights (6-12 hour flight duration), with the most arriving from Seattle.

Based on KAYAK flight searches, the most popular destination is Jeju City (52% of total searches to South Korea). The next most popular destinations are Busan (30%) and Daegu (16%). Searches for flights to Wonju (1%) are also popular.