Cheap flights from South Korea to Illinois from $464
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from South Korea to Illinois departing on 9/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from South Korea to Illinois
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Illinois?
The cheapest month to fly to Illinois from South Korea is in February. Flight prices, which tend to average around $876, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $891.
What is the cheapest day to depart on your flight to Illinois?
The cheapest day to depart from South Korea to Illinois is on a Monday when prices can be found for as low as $1,289. Flights from South Korea to Illinois on a Saturday will generally be more expensive and average around $1,645. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Illinois?
Our most recent data shows that the best time of day to fly to Illinois is in the afternoon. Flights from South Korea to Illinois during this time can be as low as $1,098. Flights in the evening are often more expensive with an average ticket price of $1,995.
What is the cheapest South Korea to Illinois flight route?
Fly from Incheon Intl to Chicago O'Hare Intl for the best South Korea - Illinois flight prices
How far in advance should I book a flight to Illinois?
You are more likely to see cheaper flights to Illinois from South Korea when booking 15 weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $1,288 when searching 15 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from South Korea for as low as $1,051 on momondo.
What cabin class options are available on South Korea to Illinois flights?
There are 4 cabin classes available to choose from on South Korea to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from South Korea to Illinois?
Air Canada, Japan Airlines, and EVA Air are the most popular carriers operating from South Korea to Illinois
What airlines fly to Illinois?
Korean Air, Air Canada and Delta are the top three most popular airlines that fly to Illinois from South Korea according to our data. Korean Air is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 6 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.
How many flights depart from South Korea to Illinois on average per day?
As of June 2025, there are 2 flights per day flying from South Korea to Illinois. The most common time of day flights depart is 10:00AM, with 100% of flights taking off at noon.
How many flights depart from South Korea to Illinois on average per week?
As of June 2025, 14 flights take off from South Korea and land in Illinois each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.
Cheap South Korea to Illinois flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from South Korea to Illinois
When did momondo last update prices for flights from South Korea to Illinois?
Prices for flights from South Korea to Illinois are refreshed on a daily basis.
How many operators does momondo search for flights from South Korea to Illinois?
As of June 2025, there are 6 operators available to choose from for flights from South Korea to Illinois.
How old do you have to be to fly from South Korea to Illinois?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from South Korea to Illinois.
What documentation or ID do you need to fly to Illinois?
The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from South Korea to Illinois?
Based on momondo bookings for flights between South Korea and Illinois, the leading plane model is Boeing 777-300ER, making up 93.87% of the total bookings. Other popular models include Airbus A350-900 with 2.58%, Airbus A380-800 with 1.94%, and Boeing 787-9 Dreamliner with 0.97%.
Best airlines flying from South Korea to Illinois
Compare and see reviews for airlines that fly from South Korea to Illinois with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $229 | Free Cancellation | Rating 8.0 7,963 reviews | |||
| PriceFrom $558 | Free Cancellation | Rating 8.2 441 reviews | |||
| PriceFrom $697 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $730 | Free Cancellation | Rating 7.1 9,554 reviews | |||
| PriceFrom $851 | Free Cancellation | Rating 7.4 8,801 reviews | |||
| PriceFrom $857 | Free Cancellation | Rating 8.4 1,090 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from South Korea to Illinois?
Finding the right flight to Illinois from South Korea is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Illinois quick and easy, saving you time and money.
Can I find flights from South Korea to Illinois with flexible booking policies on momondo?
Yes. All flights to Illinois from South Korea on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from South Korea to Illinois?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Illinois from South Korea.
I’m not ready to book a flight from South Korea to Illinois right now. Can momondo alert me if prices change?
If you are not ready to book a flight from South Korea to Illinois now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Illinois and let you know when they change.