Cheap flights from Chicago to Seoul from $350

The cheapest month to fly to Incheon Intl Airport from Chicago is in August. Flight prices, which tend to average around $760, are often lower during this time because this is during the off-season. If you are unable to visit Incheon Intl Airport during the month of August, then departing from Chicago during the month October is also very affordable. Most momondo users find prices during this month for around $1,147.

The cheapest day to depart from Chicago to Incheon Intl Airport is on a Tuesday when prices can be found for as low as $905. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,111. These prices are subject to change though, so be sure to set up a Price Alert for flights to Incheon Intl Airport.

In the evening is the cheapest time of day to fly from Chicago to Incheon Intl Airport when you can find flight prices for as low as $982. Flying to Incheon Intl Airport in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $998 on average. Flights to Incheon Intl Airport from Chicago in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Chicago O'Hare Intl to Incheon Intl for the best Chicago - Incheon Intl flight prices

You are more likely to see cheaper flights to Incheon Intl Airport from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Incheon Intl Airport for around $1,517 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Incheon Intl Airport from Chicago for as low as $799 on momondo.

There are 4 cabin classes available to choose from on Chicago to Incheon Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cathay Pacific, EVA Air, and Korean Air are the most popular carriers operating from Chicago to Incheon Intl

Korean Air, EVA Air and Delta are the top three most popular airlines that fly to Incheon Intl Airport from Chicago according to our data. Korean Air is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Incheon Intl Airport. Keep in mind that there are 10 different airlines that fly to Incheon Intl Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 33% of flights between Chicago and Incheon have experienced a delay on any given week. The average delay length over the past 12 months has been 214 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

Thursday is statistically the day of the week which experiences the fewest number of delays on this flight route. Wednesday has historically seen more delays on average compared to the rest of the week.

According to our data, Korean Air have had the least number of delays on this route over the last 12 months; with about 19% of their flights experiencing any sort of delay.

Istanbul (IST) was the most common stop: 35% of momondo users choosing 1-stop flights on this route connected there.

Flights via Hong Kong (HKG) offer the lowest average round-trip price of $896.

Flights connecting via Detroit (DTW) have the shortest average one-way travel time: 16h 55m.

Detroit (DTW) has the shortest average layover time for this route: 1h 47m.

As of March 2026, there are 2 flights per day flying from Chicago to Incheon Intl Airport. The most common time of day flights depart is 11:00AM, with 100% of flights taking off at noon.

As of March 2026, 14 flights take off from Chicago and land in Incheon Intl Airport each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.