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Cheap Flights to Illinois from ₩133,500

View ₩133,500 flight on Fri, Aug 28, 2026Opens in a new window

Popular airlines to Illinois

  • Delta

  • American Airlines

  • United

  • Frontier Airlines

  • Alaska Airlines

  • JetBlue Airways

  • Southwest Airlines

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How much is the cheapest flight to Illinois?

Prices were available within the past 7 days and start at ₩133,500 for one-way flights and ₩586,900 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sun, Sep 13 - Sun, Sep 20
BNA
Nashville
ORD
Chicago
₩586,900 Roundtrip, found 1 day ago
₩586,900
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sun, Sep 13 from Nashville to Chicago, returning Sun, Sep 20, priced at ₩586,900 found 1 day ago
American Airlines
Thu, Sep 10 - Thu, Sep 17
BNA
Nashville
CMI
Champaign
₩795,600 Roundtrip, found 4 days ago
₩795,600
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Sep 10 from Nashville to Champaign, returning Thu, Sep 17, priced at ₩795,600 found 4 days ago
Philippine Airlines
Mon, Nov 9 - Mon, Nov 16
ICN
Seoul
ORD
Chicago
₩1,236,800 Roundtrip, found 6 hours ago
₩1,236,800
Roundtrip
found 6 hours ago
Select Philippine Airlines flight, departing Mon, Nov 9 from Seoul to Chicago, returning Mon, Nov 16, priced at ₩1,236,800 found 6 hours ago
Philippine Airlines
Mon, Feb 22 - Fri, Feb 26
ICN
Seoul
ORD
Chicago
₩1,276,800 Roundtrip, found 5 hours ago
₩1,276,800
Roundtrip
found 5 hours ago
Select Philippine Airlines flight, departing Mon, Feb 22 from Seoul to Chicago, returning Fri, Feb 26, priced at ₩1,276,800 found 5 hours ago
Jeju Air
Wed, Sep 16 - Mon, Sep 21
ICN
Seoul
STL
St. Louis
₩1,293,600 Roundtrip, found 5 hours ago
₩1,293,600
Roundtrip
found 5 hours ago
Select Jeju Air flight, departing Wed, Sep 16 from Seoul to St. Louis, returning Mon, Sep 21, priced at ₩1,293,600 found 5 hours ago
Air Canada
Tue, Oct 20 - Wed, Nov 25
ICN
Seoul
ORD
Chicago
₩1,520,100 Roundtrip, just found
₩1,520,100
Roundtrip
just found
Select Air Canada flight, departing Tue, Oct 20 from Seoul to Chicago, returning Wed, Nov 25, priced at ₩1,520,100 just found
United
Tue, Sep 8 - Wed, Sep 9
ICN
Seoul
ORD
Chicago
₩1,539,800 Roundtrip, found 1 day ago
₩1,539,800
Roundtrip
found 1 day ago
Select United flight, departing Tue, Sep 8 from Seoul to Chicago, returning Wed, Sep 9, priced at ₩1,539,800 found 1 day ago
EVA Airways
Mon, Oct 5 - Tue, Nov 10
ICN
Seoul
ORD
Chicago
₩1,632,400 Roundtrip, just found
₩1,632,400
Roundtrip
just found
Select EVA Airways flight, departing Mon, Oct 5 from Seoul to Chicago, returning Tue, Nov 10, priced at ₩1,632,400 just found
Cathay Pacific
Tue, Sep 15 - Wed, Sep 23
ICN
Seoul
CMI
Champaign
₩1,635,500 Roundtrip, found 1 day ago
₩1,635,500
Roundtrip
found 1 day ago
Select Cathay Pacific flight, departing Tue, Sep 15 from Seoul to Champaign, returning Wed, Sep 23, priced at ₩1,635,500 found 1 day ago
WestJet
Sat, Oct 10 - Sun, Oct 18
ICN
Seoul
ORD
Chicago
₩1,674,800 Roundtrip, found 1 hour ago
₩1,674,800
Roundtrip
found 1 hour ago
Select WestJet flight, departing Sat, Oct 10 from Seoul to Chicago, returning Sun, Oct 18, priced at ₩1,674,800 found 1 hour ago

Airports in Illinois

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Midway Intl. MDW. Cheapest option available. Flights from ₩488,600
MDW
Midway Intl.
Cheapest
Flights from ₩488,600

Trending flights to Illinois

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Philippine Airlines
Mon, Nov 9 - Mon, Nov 16
ICN
Seoul
ORD
Chicago
₩1,236,800 Roundtrip, found 6 hours ago
₩1,236,800
Roundtrip
found 6 hours ago
Select Philippine Airlines flight, departing Mon, Nov 9 from Seoul to Chicago, returning Mon, Nov 16, priced at ₩1,236,800 found 6 hours ago

Frequently asked questions

How do I find cheap flights to Illinois that have flexible change policies?
Search for cheap flights to Illinois, then tick the "No change fee" box under the "Flexible change policies" heading. From then on it's smooth sailing. We understand that travel plans change and flexibility is essential, so book with confidence with Expedia.
Which airlines fly to Illinois?
Whether you're traveling somewhere new or rendezvousing at a favorite haunt, these airlines are waiting to take you into or near Illinois:

  • United Airlines - 13,063 flights to or near Illinois each month, including 12,950 flights to O'Hare Intl. Airport (ORD) and 108 flights to Quad City Intl. Airport (MLI) per month.
  • American Airlines - 8,977 flights to or near Illinois each month, including 8,855 flights to O'Hare Intl. Airport (ORD) and 121 flights to Quad City Intl. Airport (MLI) per month.
  • Southwest Airlines - 5,997 flights to or near Illinois each month, including 5,334 flights to Midway Intl. Airport (MDW) and 663 flights to O'Hare Intl. Airport (ORD) per month.

How can I find cheap tickets to Illinois?
One of the easiest ways to find cheap tickets to Illinois is to be flexible with your travel dates. Search for your flights, then click "flexible dates" at the top of your results. It'll reveal the cheapest prices for nearby days. The lowest price for a flight to Illinois in the last seven days was ₩586,900. Booking well in advance will generally help you score an even bigger bargain.
How much is a flight to Illinois?
There were plenty of bargain fares up for grabs in the last seven days, with the cost of a return airfare to Illinois ranging between ₩586,900 and ₩1,674,800. Many lucky travelers nabbed one-way tickets from Nashville (BNA) for as little as ₩133,500.
What are the most popular airports to fly into in Illinois?
Touch down at one of these top Illinois airports and you'll be perfectly placed to discover all that this wonderful region has to offer:

  • O'Hare Intl. Airport (ORD) - 25,318 flights per month.
  • Midway Intl. Airport (MDW) - 5,962 flights per month.
  • Quad City Intl. Airport (MLI) - 325 flights per month.

When is the cheapest time to fly to Illinois?
Take off for Illinois early in the week and you'll usually be rewarded more economical fares. Tuesday is typically the cheapest day to hop on a plane, followed by Monday. If you're hoping to avoid the most expensive flights, steer clear of Saturdays.
How much is a plane ticket to Illinois?
In the last seven days, plane fares to Illinois ranged from ₩586,900 to ₩1,674,800.
What is the best time to go to Illinois?
A terrific time to check out Chicago is after June 20 when the summer season starts. In Illinois's main city, average temperatures range from 65ºF to 75ºF at this time — ideal weather for sightseeing! May, June and August are the most popular months to head to this hot spot.
What months are the cheapest to book a flight to Illinois?
The top month to purchase affordable flights to Illinois is February. Remember that in the U.S, an expensive time to reserve a ticket is during the busy month of December.

Book with confidence

About Illinois

Expedia offers flights to Illinois to meet every traveler's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Illinois or destinations around the world and discover how easy it is to make your flight reservations on Expedia.
About Illinois
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