Cheap flights from Chicago to Seoul from $403

The month of April is another great option to travel to Seoul, with average flight prices from Chicago averaging around $1,220.

According to our data, Tuesday is the cheapest day to fly to Seoul from Chicago. The lowest ticket price found for a Tuesday departure recently was $951. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Seoul is Saturday, with ticket prices averaging around $1,158.

Flying to Seoul from Chicago in the evening is the least expensive time of day to depart. momondo users have found prices as low as $881 when looking at flights departing in the evening. In the morning is when there is more demand to fly to Seoul, so prices are often more expensive at around $1,024 per ticket.

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

You are more likely to see cheaper flights to Seoul from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Seoul for around $1,521 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seoul from Chicago for as low as $987 on momondo.

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

You could potentially save up to 52% on your flight if you consider stops on a Chicago to Seoul flight.

As of September 2026, prices for Chicago to Seoul flights are approximately 6% more expensive when compared to flights at the same time last year.

Turkish Airlines and Japan Airlines are the most popular carriers operating from Chicago to Seoul

Korean Air, EVA Air and Delta are the top three most popular airlines that fly to Seoul from Chicago according to our data. Korean Air is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Seoul. Keep in mind that there are 11 different airlines that fly to Seoul on a routine basis, so you have a few additional options to choose from.

Taipei City (TPE) was the most common stop: 26% 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 $928.

Flights connecting via Tokyo (HND) have the shortest average one-way travel time: 16h 45m.

Dallas (DFW) has the shortest average layover time for this route: 1h 20m.

The number of flights available between Chicago and Seoul is 2 per day as of September 2026. The most frequent departure time is 12:00PM, with 100% of daily flights leaving in the afternoon.

14 flights are operational weekly from Chicago to Seoul as of September 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.