$430 Find Cheap Flights from Illinois 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 Illinois to South Korea.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Illinois 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 Illinois 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 Illinois to South Korea up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

There are 14 airports in South Korea. The busiest airport is Seoul Incheon Airport (ICN), with 57% 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 $501.

Based on KAYAK data, the cheapest day to fly to South Korea is Tuesday where round-trip tickets can be as cheap as $959. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are $1,162 on average.

The cheapest time of day to fly to South Korea is generally at night, when round-trip flights cost $881 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 $1,030.

The cheapest ticket to South Korea from Illinois found in the last 5 days was to Incheon Intl Airport, at $819 round-trip. The most popular route is Chicago O'Hare Intl Airport (ORD) to Incheon Intl Airport (ICN) and the cheapest round-trip airline ticket found on this route in the last 5 days was $819.

The cheapest month for flights from Illinois to South Korea is August, when tickets cost $600 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,045 and $970 respectively.

To get a below average price on the flight from Illinois to South Korea, you should book around 3 weeks before departure, which saves you about 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

From Illinois, there are direct flights to South Korea from 1 city. This city is Chicago and there are 14 direct flights each week.

There are around 2 direct flights from within Illinois to South Korea every day. All flights depart in the morning.

Each week there are around 14 direct flights from within Illinois to South Korea. The most common day for departures is Monday, with 14% of flights taking off on this day.

An average nonstop flight from Illinois to South Korea takes 26h 34m, covering a distance of 6619 miles. The shortest route is Chicago O'Hare Intl Airport (ORD) to Incheon Intl Airport (ICN) with an average flight time of 14h 40m.

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 14 long-haul flights (6-12 hour flight duration), with the most arriving from Chicago.

Based on KAYAK flight searches, the most popular destination is Seoul (99% of total searches to South Korea). The next most popular destination is Jeju City (1%).