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Kansai Intl

$411+ Cheap flights from Illinois to Kansai Intl (KIX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — KIX
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Illinois to Kansai Intl

Keep the following information in mind while searching for Illinois to Kansai Intl flight deals. Data was last updated September 16, 2025.

Round-trip from

$728
(Booking.com)

One-way from

$411
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$1,084
From Illinois to Osaka Kansai Intl
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One-way flight from Illinois to Osaka Kansai Intl
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Highest demand for flights based on searches. 9% potential increase in price ($145 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Illinois to Kansai Intl

Cheapest flights from Illinois to Kansai Intl
Explore the most affordable flight options available from Illinois to Kansai Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Expedia deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/195:30 pmSTL - KIX
2 stops55h 20mUnited Airlines
Tue 9/304:50 pmKIX - STL
2 stops31h 02mUnited Airlines
Deal found 9/14$727
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/155:49 pmSTL - KIX
1 stop31h 01mUnited Airlines
Tue 9/234:50 pmKIX - STL
2 stops17h 56mUnited Airlines
Deal found 9/15$729
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/145:49 pmSTL - KIX
1 stop31h 01mUnited Airlines
Tue 9/234:50 pmKIX - STL
1 stop38h 03mUnited Airlines
Deal found 9/14$732
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/157:04 pmSTL - KIX
2 stops29h 46mUnited Airlines
Thu 9/258:25 amKIX - STL
3 stops27h 35mUnited Airlines
Deal found 9/15$733
This United Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/165:30 pmSTL - KIX
2 stops31h 20mUnited Airlines
Fri 9/194:50 pmKIX - STL
2 stops33h 53mUnited Airlines
Deal found 9/13$741
This oojo deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/283:40 pmORD - KIX
1 stop39h 25mCathay Pacific
Tue 11/49:50 amKIX - ORD
1 stop42h 10mCathay Pacific
Deal found 9/14$744
This FlightHub deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/83:22 pmSTL - KIX
2 stops26h 03mJapan Airlines
Sat 12/207:00 amKIX - STL
2 stops24h 41mJapan Airlines
Deal found 9/14$748
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/187:04 pmSTL - KIX
2 stops29h 46mUnited Airlines
Thu 9/254:50 pmKIX - STL
2 stops19h 10mUnited Airlines
Deal found 9/15$757
This United Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/145:49 pmSTL - KIX
1 stop31h 01mUnited Airlines
Sun 9/218:25 amKIX - STL
2 stops29h 19mUnited Airlines
Deal found 9/13$759
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/165:15 amSTL - KIX
2 stops19h 35mUnited Airlines
Sun 9/218:25 amKIX - STL
2 stops29h 19mUnited Airlines
Deal found 9/15$760
This oojo deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/164:00 pmORD - KIX
1 stop24h 40mCathay Pacific
Tue 9/235:45 pmKIX - ORD
1 stop34h 40mCathay Pacific
Deal found 9/14$760
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/86:55 amSTL - KIX
1 stop20h 55mAmerican Airlines
Sat 12/205:50 pmKIX - STL
1 stop21h 01mAmerican Airlines
Deal found 9/14$767

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Kansai Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Illinois to Osaka Kansai Intl Airport that are best for you.

Fly from

Illinois

Fly to

Kansai Intl

Route

Depart

Return

Price

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Fri 9/19

5:30 pm-2:50 pm

2 stops55h 20m

Osaka Kansai Intl

Tue 9/30

4:50 pm-4:54 pm

1 stop38h 04m

$727

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Sat 9/27

5:28 pm-2:50 pm

2 stops31h 22m

Osaka Kansai Intl

Wed 10/1

4:50 pm-10:00 pm

2 stops19h 10m

$741

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Mon 12/8

6:55 am-6:50 pm

1 stop20h 55m

Osaka Kansai Intl

Sat 12/20

5:50 pm-11:51 pm

1 stop21h 01m

$767

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Sat 9/20

4:32 pm-2:50 pm

2 stops32h 18m

Osaka Kansai Intl

Sun 9/28

4:50 pm-10:00 pm

2 stops19h 10m

$769

ChicagoOsaka

ORD - KIX

ORDKIX

Chicago O'Hare Intl

Tue 11/11

2:35 pm-5:50 pm

1 stop36h 15m

Osaka Kansai Intl

Thu 11/20

6:05 pm-12:55 pm

1 stop33h 50m

$803

ChicagoOsaka

ORD - KIX

ORDKIX

Chicago O'Hare Intl

Sat 9/20

4:00 pm-6:40 am

1 stop24h 40m

Osaka Kansai Intl

Sun 9/28

6:35 pm-2:25 pm

1 stop33h 50m

$933

ChicagoOsaka

ORD - KIX

ORDKIX

Chicago O'Hare Intl

Tue 10/28

3:35 pm-2:55 pm

2 stops33h 20m

Osaka Kansai Intl

Tue 11/4

4:15 pm-12:55 pm

2 stops35h 40m

$934

ChicagoOsaka

ORD - KIX

ORDKIX

Chicago O'Hare Intl

Mon 10/27

12:30 am-11:55 am

1 stop21h 25m

Osaka Kansai Intl

Tue 11/4

12:55 pm-7:35 pm

1 stop21h 40m

$975

ChicagoOsaka

ORD - KIX

ORDKIX

Chicago O'Hare Intl

Wed 10/1

7:09 pm-7:40 pm

2 stops34h 31m

Osaka Kansai Intl

Thu 10/16

7:35 am-11:45 pm

3 stops30h 10m

$1,026

ChicagoOsaka

ORD - KIX

ORDKIX

Chicago O'Hare Intl

Thu 10/9

4:00 pm-6:40 am

1 stop24h 40m

Osaka Kansai Intl

Mon 10/13

7:35 pm-2:25 pm

1 stop32h 50m

$1,096

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 35 results
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Best time to book a flight from Illinois to Kansai Intl

Have a flexible travel schedule? Discover the best time to fly to Kansai Intl from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Osaka Kansai Intl Airport

What is the cheapest month to book a flight from Illinois to Osaka Kansai Intl Airport?

Currently, February is the cheapest month in which you can book a flight from Illinois to Osaka Kansai Intl Airport (average of $859). Flying from Illinois to Osaka Kansai Intl Airport in June is currently the most expensive (average of $1,309). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to KIX?

Find hourly flight availability from Illinois to Kansai Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Osaka Kansai Intl Airport as you normally would.

How much does it cost to fly round-trip from Illinois to Osaka Kansai Intl Airport?

Related info for your journey

Find useful and relevant information for your journey from Illinois to Kansai Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Illinois to Osaka Kansai Intl Airport?

    For as low as $767, United Airlines can have you in Osaka Kansai Intl Airport from Illinois in 20h 55m. There are 6595 mi between Illinois and Osaka Kansai Intl Airport. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Illinois to Osaka Kansai Intl Airport one-way?

    $433 is the cheapest one-way deal found within the past few days, from Japan Airlines. You may also be able to find cheap deals on ANA and Cathay Pacific, with prices starting from $450 and $526, respectively.

  • What are the most popular routes from Illinois to Osaka Kansai Intl Airport?

    While some choose either Chicago Midway - Osaka Kansai Intl or Lambert-St Louis - Osaka Kansai Intl, Chicago O'Hare Intl - Osaka Kansai Intl is the most popular route from Illinois to Osaka Kansai Intl Airport.

  • Can I find deals for flights from Illinois to Kansai Intl that include hotel bookings?

    Yes. In addition to deals on Illinois to Kansai Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Kansai Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Kansai Intl.

  • Can I find deals for business class flights from Illinois to Kansai Intl?

    Yes. Cheapflights offers flight deals from Illinois to Kansai Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Osaka Kansai Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Illinois to Osaka Kansai Intl Airport (average of $859). Flying from Illinois to Osaka Kansai Intl Airport in June is currently the most expensive (average of $1,309). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Osaka Kansai Intl Airport?

Book flights to Osaka Kansai Intl Airport if you plan to visit one of these locations
Izumisano
Nara
Nishinomiya
Himeji

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Alternative routes for Illinois to Kansai Intl

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Top 3 airlines flying from Illinois to Kansai Intl

Discover the top 3 airlines that operate flights from Illinois to Kansai Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
EVA AirCheapest$1,097Average$1,293FlexibilityNo cancel feeOn-time74%
United AirlinesCheapest$1,099Average$1,698FlexibilityNo cancel feeOn-time69%
ANACheapest$1,179Average$1,614FlexibilityNo cancel feeOn-time80%

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