Cheap Flights to Illinois from ₩127,200

Popular airlines to Illinois

  • Delta

    Delta

  • American Airlines

    American Airlines

  • Frontier Airlines

    Frontier Airlines

  • United

    United

  • Southwest Airlines

    Southwest Airlines

  • Spirit Airlines

    Spirit Airlines

  • Alaska Airlines

    Alaska Airlines

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How much is the cheapest flight to Illinois?

Prices were available within the past 7 days and start at ₩127,200 for one-way flights and ₩413,900 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Nov 24 - Fri, Nov 28
BWI
Baltimore
ORD
Chicago
₩413,900 Roundtrip, found 20 hours ago
₩413,900
Roundtrip
found 20 hours ago
Select United flight, departing Mon, Nov 24 from Baltimore to Chicago, returning Fri, Nov 28, priced at ₩413,900 found 20 hours ago
Delta
Fri, Nov 28 - Wed, Dec 3
BWI
Baltimore
ORD
Chicago
₩433,300 Roundtrip, found 20 hours ago
₩433,300
Roundtrip
found 20 hours ago
Select Delta flight, departing Fri, Nov 28 from Baltimore to Chicago, returning Wed, Dec 3, priced at ₩433,300 found 20 hours ago
American Airlines
Wed, Nov 26 - Wed, Dec 3
BWI
Baltimore
ORD
Chicago
₩505,500 Roundtrip, found 20 hours ago
₩505,500
Roundtrip
found 20 hours ago
Select American Airlines flight, departing Wed, Nov 26 from Baltimore to Chicago, returning Wed, Dec 3, priced at ₩505,500 found 20 hours ago
United
Fri, Sep 18 - Sun, Sep 20
ICN
Seoul
ORD
Chicago
₩670,500 Roundtrip, found 5 days ago
₩670,500
Roundtrip
found 5 days ago
Select United flight, departing Fri, Sep 18 from Seoul to Chicago, returning Sun, Sep 20, priced at ₩670,500 found 5 days ago
Hawaiian Airlines
Fri, Nov 14 - Sat, Nov 15
ICN
Seoul
ORD
Chicago
₩808,500 Roundtrip, found 2 days ago
₩808,500
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Fri, Nov 14 from Seoul to Chicago, returning Sat, Nov 15, priced at ₩808,500 found 2 days ago
Alaska Airlines
Thu, Feb 19 - Sun, Feb 22
ICN
Seoul
ORD
Chicago
₩816,600 Roundtrip, found 15 hours ago
₩816,600
Roundtrip
found 15 hours ago
Select Alaska Airlines flight, departing Thu, Feb 19 from Seoul to Chicago, returning Sun, Feb 22, priced at ₩816,600 found 15 hours ago
American Airlines
Mon, Nov 17 - Mon, Nov 24
ICN
Seoul
STL
St. Louis
₩843,400 Roundtrip, found 6 days ago
₩843,400
Roundtrip
found 6 days ago
Select American Airlines flight, departing Mon, Nov 17 from Seoul to St. Louis, returning Mon, Nov 24, priced at ₩843,400 found 6 days ago
United
Tue, Feb 17 - Thu, Feb 26
ICN
Seoul
MLI
Moline
₩856,200 Roundtrip, found 1 day ago
₩856,200
Roundtrip
found 1 day ago
Select United flight, departing Tue, Feb 17 from Seoul to Moline, returning Thu, Feb 26, priced at ₩856,200 found 1 day ago
American Airlines
Wed, Nov 12 - Wed, Dec 3
ICN
Seoul
BMI
Bloomington
₩883,100 Roundtrip, found 2 days ago
₩883,100
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Nov 12 from Seoul to Bloomington, returning Wed, Dec 3, priced at ₩883,100 found 2 days ago
Korean Air
Tue, Dec 9 - Thu, Jan 15
ICN
Seoul
STL
St. Louis
₩997,500 Roundtrip, found 1 day ago
₩997,500
Roundtrip
found 1 day ago
Select Korean Air flight, departing Tue, Dec 9 from Seoul to St. Louis, returning Thu, Jan 15, priced at ₩997,500 found 1 day ago

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.

United
Fri, Sep 18 - Sun, Sep 20
ICN
Seoul
ORD
Chicago
₩670,500 Roundtrip, found 5 days ago
₩670,500
Roundtrip
found 5 days ago
Select United flight, departing Fri, Sep 18 from Seoul to Chicago, returning Sun, Sep 20, priced at ₩670,500 found 5 days 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 ₩413,900. 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 ₩413,900 and ₩997,500. Many lucky travelers nabbed one-way tickets from Baltimore (BWI) for as little as ₩127,200.
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 ₩413,900 to ₩997,500.
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

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About Illinois

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