Cheap Flights from Chicago to Seoul from US$401

Frequently Asked Questions

• What are the cheapest flights from Chicago to Seoul (CHI-SEL)?

  Based on Trip.com data, WestJet offers one-way fares as low as US$401 on Cheapest nonstop routes (e.g. ORD to ICN on Tue, Aug 25), while WestJet offers Cheapest nonstop round-trips from US$856 departing on Sat, Aug 29 and returning on Tue, Sep 1.

• Which airlines offer direct flights from Chicago to Seoul?

  At the moment, you can catch a nonstop flight from Chicago to Seoul with the following airlines, including: Korean Air Air Premia Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long is a flight from Chicago to Seoul?

  It takes about 14 hours 20 minutes to fly from Chicago to Seoul.

• When is the best time to book flights from Chicago to Seoul?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Chicago to Seoul is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How many flights are there per week from Chicago to Seoul?

  Based on Trip.com data in the past 4 weeks, there is 6 flight per week flying from Chicago to Seoul. You can check the weekly schedule for popular airlines on this route below: Korean Air: S/M/T/W/T/F/S -- KE038 (13:00)

• How can I find the best deals on flights from Chicago to Seoul?

  To find best deals on flights from Chicago to Seoul, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, Aug 25, with one-way flights priced at just US$401.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Korean Air.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Seoul travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Chicago (CHI) to Seoul (SEL) the cheapest?

  The cheapest months to fly from Chicago to Seoul is October, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Chicago to Seoul on?

  After crunching the numbers on our July flight calendar, it's currently cheapest to fly from Chicago to Seoul on July 29, 2026 with Frontier Airlines, with prices starting at US$528.

• Which airports can I fly to for Seoul from Chicago?

  You can land at any one of the following hubs in Seoul, with O'Hare International Airport to Incheon International Airport (ORD-ICN) is by far the most common option on this route: Gimpo International Airport (GMP) Incheon International Airport (ICN).

• Is there any time difference between Chicago and Seoul?

  The time difference between Seoul and Chicago is 15h.

• How do I change or cancel my ticket from Chicago to Seoul?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.