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Cheap flights from Illinois to Seoul from $424

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Seoul departing on 2/15. 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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Find the cheapest flights from Illinois to Seoul

Cheap round-trip flights

These are some of the best round-trip flight deals from Illinois to Seoul that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Illinois to Seoul.

Cheap last minute flights

Planning a quick getaway from Illinois to Seoul? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Seoul, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Illinois to Seoul

Find recent round-trip train or bus tickets from Illinois to Seoul.

All round-trip flight deals to Seoul

The cheapest plane tickets to Seoul found on KAYAK recently.
11:55 am - 6:20 pmORD-ICN
39h 25m1 stop
12:10 am - 6:35 pmICN-ORD
33h 25m1 stop
$771Turkish Airlines
Find Deal
Sun, Feb 23 - Wed, Mar 5
11:55 am - 6:20 pmORD-ICN
39h 25m1 stop
12:10 am - 6:35 pmICN-ORD
33h 25m1 stop
$772Turkish Airlines
Find Deal
Sun, Feb 23 - Wed, Mar 5
3:50 pm - 4:05 pmSTL-ICN
34h 15m2 stops
6:00 pm - 3:06 pmICN-STL
35h 06m2 stops
$863Air Canada
Find Deal
Fri, Apr 11 - Thu, Apr 24
3:50 pm - 3:15 pmSTL-ICN
32h 25m2 stops
4:55 pm - 3:06 pmICN-STL
37h 11m2 stops
$864Air Canada
Find Deal
Sun, Feb 2 - Sat, Feb 8
2:40 pm - 6:35 pmORD-ICN
36h 55m1 stop
7:35 pm - 1:00 pmICN-ORD
32h 25m1 stop
$878Cathay Pacific
Find Deal
Tue, Feb 18 - Mon, Mar 3
2:40 pm - 1:55 pmORD-ICN
32h 15m1 stop
7:35 pm - 1:00 pmICN-ORD
32h 25m1 stop
$888Cathay Pacific
Find Deal
Sat, Feb 15 - Sun, Mar 2
7:02 pm - 3:15 pmSTL-ICN
30h 13m2 stops
5:25 pm - 10:26 pmICN-STL
19h 01m1 stop
$893American Airlines
Find Deal
Fri, Apr 11 - Thu, Apr 24
6:25 pm - 3:15 pmSTL-ICN
30h 50m2 stops
5:25 pm - 10:26 pmICN-STL
19h 01m1 stop
$907American Airlines
Find Deal
Sat, Apr 5 - Tue, Apr 22
6:00 am - 4:30 pmSTL-ICN
20h 30m2 stops
4:25 pm - 8:53 amICN-STL
30h 28m1 stop
$913Delta
Find Deal
Sun, Apr 6 - Wed, Apr 23
6:30 am - 4:30 pmSTL-ICN
19h 00m1 stop
7:40 pm - 12:38 amICN-STL
18h 58m1 stop
$1,294Delta
Find Deal
Fri, Feb 21 - Mon, Jun 23
6:30 pm - 11:35 amORD-ICN
50h 05m3 stops
Sat, Feb 15
9:18 pm - 11:35 amORD-ICN
47h 17m2 stops
Sun, Jan 19
3:50 pm - 3:15 pmSTL-ICN
32h 25m2 stops
$466Air Canada
Find Deal
Wed, Jan 15
3:40 pm - 3:15 pmORD-ICN
32h 35m1 stop
$476Air Canada
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Sun, Jan 12
9:44 am - 5:40 amSTL-ICN
28h 56m2 stops
$506United Airlines
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Wed, Jan 15
11:55 am - 6:20 pmORD-ICN
39h 25m1 stop
$511Turkish Airlines
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Tue, Jan 14
6:30 am - 4:45 pmORD-ICN
19h 15m1 stop
$523American Airlines
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Sun, Jan 12
8:00 pm - 4:45 pmORD-ICN
29h 45m1 stop
$531American Airlines
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Sun, Dec 1
7:50 pm - 5:40 pmORD-ICN
31h 50m1 stop
$542Turkish Airlines
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Sun, Apr 6
8:00 am - 5:40 amSTL-ICN
30h 40m2 stops
$1,006United Airlines
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Mon, Dec 30
5:00 am - 4:30 pmORD-ICN
20h 30m1 stop
6:50 pm - 9:18 pmICN-ORD
17h 28m1 stop
$952American Airlines
Find Deal
Sat, Nov 30 - Sat, Dec 14
2:40 pm - 12:45 pmORD-ICN
31h 05m1 stop
3:20 pm - 5:28 pmICN-ORD
41h 08m2 stops
$1,102
Find Deal
Tue, Nov 26 - Thu, Dec 12
3:40 pm - 4:45 pmORD-ICN
34h 05m1 stop
6:20 pm - 2:39 pmICN-ORD
35h 19m1 stop
$1,104Air Canada
Find Deal
Wed, Nov 27 - Tue, Dec 3
8:25 pm - 6:25 pmORD-ICN
31h 00m1 stop
6:20 pm - 2:39 pmICN-ORD
35h 19m1 stop
$1,107Air Canada
Find Deal
Tue, Nov 26 - Thu, Dec 12
11:30 pm - 6:45 pmORD-ICN
28h 15m1 stop
7:45 pm - 7:35 pmICN-ORD
38h 50m1 stop
$1,312EVA Air
Find Deal
Sat, Nov 30 - Tue, Dec 3
6:00 am - 3:50 pmMLI-ICN
18h 50m1 stop
7:30 pm - 4:26 pmICN-MLI
35h 56m2 stops
$1,413Delta
Find Deal
Fri, Nov 29 - Sun, Dec 1
7:00 am - 5:40 amSTL-ICN
31h 40m2 stops
6:00 pm - 9:47 amICN-STL
30h 47m2 stops
$1,435United Airlines
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Thu, Nov 28 - Sat, Nov 30
7:05 am - 4:30 pmORD-ICN
18h 25m1 stop
10:40 am - 8:30 amICN-ORD
12h 50mnonstop
$1,595Delta
Find Deal
Sat, Nov 30 - Sat, Dec 14
8:57 am - 5:40 amMLI-ICN
29h 43m2 stops
6:00 pm - 11:54 pmICN-MLI
20h 54m2 stops
$1,937United Airlines
Find Deal
Fri, Nov 29 - Sun, Dec 1
11:30 pm - 7:40 pmORD-ICN
29h 10m3 stops
8:40 pm - 7:35 pmICN-ORD
37h 55m3 stops
$2,344EVA Air
Find Deal
Tue, Nov 26 - Thu, Dec 12
11:25 am - 5:15 pmORD-ICN
14h 50mnonstop
10:40 am - 8:40 amICN-ORD
13h 00mnonstop
$1,425Korean Air
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Fri, Feb 7 - Sun, Feb 16
12:20 pm - 4:50 pmORD-ICN
14h 30mnonstop
10:40 am - 9:50 amICN-ORD
13h 10mnonstop
$1,449Korean Air
Find Deal
Sun, Apr 6 - Sun, Apr 20
11:25 am - 5:15 pmORD-ICN
14h 50mnonstop
10:40 am - 8:40 amICN-ORD
13h 00mnonstop
$1,484Korean Air
Find Deal
Thu, Jan 23 - Thu, Jan 30
11:25 am - 5:15 pmORD-ICN
14h 50mnonstop
10:40 am - 9:40 amICN-ORD
13h 00mnonstop
$1,508Korean Air
Find Deal
Fri, Feb 14 - Fri, Mar 14
12:20 pm - 4:50 pmORD-ICN
14h 30mnonstop
10:40 am - 9:50 amICN-ORD
13h 10mnonstop
$1,510Korean Air
Find Deal
Mon, Apr 21 - Mon, Apr 28
12:20 pm - 4:50 pmORD-ICN
14h 30mnonstop
10:40 am - 9:50 amICN-ORD
13h 10mnonstop
$1,537Korean Air
Find Deal
Fri, Apr 11 - Thu, Apr 24
12:25 pm - 5:15 pmORD-ICN
14h 50mnonstop
10:40 am - 9:40 amICN-ORD
13h 00mnonstop
$1,539Korean Air
Find Deal
Sun, Mar 9 - Thu, Mar 20
11:25 am - 5:15 pmORD-ICN
14h 50mnonstop
10:40 am - 9:40 amICN-ORD
13h 00mnonstop
$1,544Korean Air
Find Deal
Sat, Mar 1 - Thu, Mar 27
12:25 pm - 5:15 pmORD-ICN
14h 50mnonstop
10:40 am - 9:50 amICN-ORD
13h 10mnonstop
$1,591Delta
Find Deal
Fri, Mar 14 - Mon, Mar 31
11:25 am - 5:15 pmORD-ICN
14h 50mnonstop
10:40 am - 8:40 amICN-ORD
13h 00mnonstop
$1,971Delta
Find Deal
Thu, Jan 9 - Thu, Jan 16

Turkish Airlines flights from Illinois to Seoul

Our best Turkish Airlines deals on Illinois to Seoul flight tickets
Turkish Airlines
Feb 23
ORD11:55 amChicago O'Hare Intl
39h 25m
1 stop
ICN6:20 pmIncheon Intl
Mar 5
ICN12:10 amIncheon Intl
33h 25m
1 stop
ORD6:35 pmChicago O'Hare Intl
Turkish Airlines
Feb 23
ORD11:55 amChicago O'Hare Intl
39h 25m
1 stop
ICN6:20 pmIncheon Intl
Mar 5
ICN12:10 amIncheon Intl
33h 25m
1 stop
ORD6:35 pmChicago O'Hare Intl
Turkish Airlines
Feb 17
ORD11:55 amChicago O'Hare Intl
30h 10m
1 stop
ICN9:05 amIncheon Intl
Feb 27
ICN12:10 amIncheon Intl
33h 25m
1 stop
ORD6:35 pmChicago O'Hare Intl

Air Canada flights from Illinois to Seoul

Our best Air Canada deals on Illinois to Seoul flight tickets
Air Canada
Apr 11
STL3:50 pmLambert-St Louis
34h 15m
2 stops
ICN4:05 pmIncheon Intl
Apr 24
ICN6:00 pmIncheon Intl
35h 06m
2 stops
STL3:06 pmLambert-St Louis
Air Canada
Feb 2
STL3:50 pmLambert-St Louis
32h 25m
2 stops
ICN3:15 pmIncheon Intl
Feb 8
ICN4:55 pmIncheon Intl
37h 11m
2 stops
STL3:06 pmLambert-St Louis
Air Canada
Jan 23
ORD3:40 pmChicago O'Hare Intl
32h 35m
1 stop
ICN3:15 pmIncheon Intl
Jan 30
ICN4:55 pmIncheon Intl
36h 44m
1 stop
ORD2:39 pmChicago O'Hare Intl

See travel insights to Seoul from

How to get the cheapest flight ticket from Illinois to Seoul

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 Seoul?

The month of September is another great option to travel to Seoul, with average flight prices from Illinois averaging around $1,228.

What is the cheapest day to depart on your flight to Seoul?

According to our data, Tuesday is the cheapest day to fly to Seoul from Illinois. The lowest ticket price found for a Tuesday departure recently was $1,539. 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 Sunday, with ticket prices averaging around $1,691.

What is the cheapest time of day to depart on your flight to Seoul?

Flying to Seoul from Illinois at noon is the least expensive time of day to depart. momondo users have found prices as low as $1,251 when looking at flights departing at noon. In the morning is when there is more demand to fly to Seoul, so prices are often more expensive at around $1,859 per ticket.

What is the cheapest Illinois to Seoul flight route?

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

How far in advance should I book a flight to Seoul?

Most flyers found that booking tickets 55 days in advance of their planned departure date is the best time to get cheap flights to Seoul. During this timeframe, flight prices are around $1,504. Don’t hesitate to check prices now though because momondo users recently found tickets for as low as $940.

What cabin class options are available on Illinois to Seoul flights?

There are 3 cabin classes available to choose from on Illinois to Seoul flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Illinois to Seoul flights?

You could potentially save up to 45% on your flight if you consider stops on a Illinois to Seoul flight.

Cheap Illinois to Seoul flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Seoul

Best Price Found

$424

Fastest flight time

14h 50m

Direct flights

Every day

Airports in Seoul

2 airports
The best one-way flight to Seoul from Illinois in the past 72 hours is $424. The best round-trip flight deal from Illinois to Seoul found on momondo in the last 72 hours is $771.
The fastest flight from Illinois to Seoul takes 14h 50m
Direct flights go from Illinois to Seoul every day.
There are 2 airports near Seoul: Incheon Intl (ICN), Seoul Gimpo Intl (GMP)

  • When did momondo last update prices for flights from Illinois to Seoul?

    Prices for flights from Illinois to Seoul refresh daily.

  • How many operators does momondo search for flights from Illinois to Seoul?

  • How old do you have to be to fly from Illinois to Seoul?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Seoul.

  • What documentation or ID do you need to fly to Seoul?

    The required travel and health documents for your Seoul 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 Seoul. 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 Illinois to Seoul?


Best airlines flying from Illinois to Seoul

Compare and see reviews for airlines that fly from Illinois to Seoul with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $845Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Cathay PacificPriceFrom $885Free CancellationRating
7.6
872 reviews
Search Cathay Pacific flights
Turkish AirlinesPriceFrom $895Free CancellationRating
7.4
3,928 reviews
Search Turkish Airlines flights
Air CanadaPriceFrom $896Free CancellationRating
7.0
8,269 reviews
Search Air Canada flights
United AirlinesPriceFrom $906Free CancellationRating
7.4
9,156 reviews
Search United Airlines flights
EVA AirPriceFrom $1,076Free CancellationRating
8.4
1,307 reviews
Search EVA Air flights
LOTPriceFrom $1,216Free CancellationRating
7.6
1,163 reviews
Search LOT flights
FinnairPriceFrom $1,334Free CancellationRating
7.6
1,298 reviews
Search Finnair flights
Asiana AirlinesPriceFrom $1,491Free CancellationRating
8.3
473 reviews
Search Asiana Airlines flights
Korean AirPriceFrom $1,544Free CancellationRating
8.4
1,019 reviews
Search Korean Air flights

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Seoul?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Illinois to Seoul. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Illinois to Seoul with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Seoul from Illinois with this policy.

How can momondo help me find flights from Illinois to Seoul?

momondo provides multiple filters to help you find the best flight to Seoul from Illinois. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Illinois to Seoul right now. Can momondo alert me if prices change?

Price alerts on flights to Seoul from Illinois are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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Find better results for your trip to South Korea

Fly into one of these airports located in Seoul

Airports listed have a maximum distance of 30.3 mi from Seoul