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Osaka

$354+ Cheap flights from Illinois to Osaka (OSA)

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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OSA
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Illinois to Osaka

Cheapest flights from Illinois to Osaka
Explore the most affordable flight options available from Illinois to Osaka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/16. 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.
Wed 12/249:05 pmORD - KIX
1 stop28h 35mUnited Airlines
Sun 12/286:35 pmKIX - ORD
1 stop17h 57mUnited Airlines
Deal found 12/16$1,704
This KAYAK deal was found by Cheapflights users on 12/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2610:30 amORD - ITM
1 stop17h 25mANA
Sun 12/287:30 amITM - ORD
1 stop14h 50mANA
Deal found 12/16$1,716
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2711:30 pmORD - KIX
1 stop20h 30mMultiple Airlines
Wed 12/3110:55 amKIX - ORD
2 stops44h 05mMultiple Airlines
Deal found 12/16$1,844
This KAYAK deal was found by Cheapflights users on 12/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2711:30 pmORD - KIX
1 stop21h 25mEVA Air
Wed 12/3110:55 amKIX - ORD
1 stop23h 40mEVA Air
Deal found 12/16$1,872
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2711:30 pmORD - KIX
1 stop21h 25mEVA Air
Thu 1/112:55 pmKIX - ORD
1 stop21h 40mEVA Air
Deal found 12/16$1,891
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/272:35 pmORD - KIX
2 stops33h 20mMultiple Airlines
Thu 1/112:55 pmKIX - ORD
1 stop21h 40mMultiple Airlines
Deal found 12/16$1,940
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:44 pmORD - KIX
2 stops55h 06mMultiple Airlines
Thu 1/112:55 pmKIX - ORD
1 stop21h 40mMultiple Airlines
Deal found 12/16$1,947
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/261:10 pmORD - KIX
2 stops36h 40mMultiple Airlines
Thu 1/112:55 pmKIX - ORD
1 stop21h 40mMultiple Airlines
Deal found 12/16$1,951
This oojo deal was found by Cheapflights users on 12/16. 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.
Wed 12/2411:30 pmORD - KIX
1 stop21h 25mEVA Air
Wed 12/316:10 pmKIX - ORD
1 stop40h 25mEVA Air
Deal found 12/16$1,957
This FlightHub deal was found by Cheapflights users on 12/16. 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.
Wed 12/2411:30 pmORD - KIX
1 stop26h 25mEVA Air
Thu 1/110:55 amKIX - ORD
1 stop23h 40mEVA Air
Deal found 12/16$1,963
This Ovago deal was found by Cheapflights users on 12/16. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:25 pmORD - ITM
1 stop24h 05mANA
Wed 12/317:30 amITM - ORD
1 stop22h 40mANA
Deal found 12/16$1,979
This Ovago deal was found by Cheapflights users on 12/16. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/237:05 amORD - KIX
1 stop18h 35mANA
Tue 12/307:05 amKIX - ORD
1 stop23h 05mANA
Deal found 12/16$1,980

Find flight deals from Illinois to Osaka

Keep the following information in mind while searching for Illinois to Osaka flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$707
(Air Canada)

One-way from

$354
(Air Canada)

Popular in

December

Cheapest in

May

Average price

$1,926
Provider with most accurate pricing for Chicago (CHI)-Osaka (OSA) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Osaka (OSA) flights.
Search Deals
From Illinois to Osaka (OSA)
Search Deals
One-way flight from Illinois to Osaka (OSA)
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($130 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($50 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Osaka 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 December 18, 2025.
Use the filters below to find and compare flights from Illinois to Osaka that are best for you.

Fly from

Illinois

Fly to

Osaka

Route

Depart

Return

Price

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Tue 2/3

4:05 pm-10:20 pm

2 stops39h 15m

Osaka Kansai Intl

Thu 2/19

3:00 pm-3:29 pm

2 stops39h 29m

$707

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Tue 2/3

1:15 pm-3:10 pm

2 stops34h 55m

Osaka Itami

Thu 2/19

7:05 am-12:21 pm

2 stops20h 16m

$730

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Sat 1/17

4:42 pm-4:40 pm

2 stops32h 58m

Osaka Kansai Intl

Wed 1/21

6:35 pm-2:30 pm

2 stops34h 55m

$792

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Tue 1/13

6:40 pm-4:40 pm

2 stops31h 00m

Osaka Kansai Intl

Tue 1/20

6:35 pm-12:29 pm

2 stops32h 54m

$793

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Thu 1/8

8:30 am-4:40 pm

2 stops41h 10m

Osaka Kansai Intl

Fri 1/16

6:35 pm-1:16 pm

2 stops33h 41m

$805

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Sun 2/15

7:41 am-7:30 am

2 stops32h 49m

Osaka Itami

Sat 2/28

2:00 pm-7:14 pm

2 stops20h 14m

$812

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Sat 1/17

6:19 pm-7:55 pm

2 stops34h 36m

Osaka Itami

Wed 1/21

2:40 pm-1:54 pm

2 stops38h 14m

$859

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Thu 1/8

2:50 pm-7:55 pm

2 stops38h 05m

Osaka Itami

Fri 1/16

2:40 pm-10:46 pm

2 stops23h 06m

$878

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Thu 1/8

7:15 am-7:20 pm

2 stops21h 05m

Osaka Itami

Fri 1/16

2:40 pm-10:46 pm

2 stops23h 06m

$901

ChicagoOsaka

ORD - KIX

ORDKIX

Chicago O'Hare Intl

Mon 4/20

4:00 pm-2:55 pm

2 stops32h 55m

Osaka Kansai Intl

Tue 5/12

4:20 pm-2:25 pm

2 stops36h 05m

$902

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to Osaka

Have a flexible travel schedule? Discover the best time to fly to Osaka 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

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

Currently, September is the cheapest month in which you can book a flight from Illinois to Osaka (average of $801). Flying from Illinois to Osaka in January is currently the most expensive (average of $2,112). 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 OSA?

Find hourly flight availability from Illinois to Osaka. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

It’s typically best to fly out from Illinois to Osaka in the afternoon. Doing so could potentially save you 27% on the flight price compared to flying in the evening, which is usually more expensive.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Osaka. 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?

    ANA, United Airlines, and Japan Airlines can get you from Illinois to Osaka in just under 21h 05m. Your travel time can differ by up to 13h 50m. The distance from Illinois to Osaka is about 6568 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The most popular route from Illinois to Osaka is Chicago O'Hare Intl - Osaka Itami. You may also consider Chicago O'Hare Intl - Osaka Kansai Intl or Chicago O'Hare Intl - Kobe.

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

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

  • How can I find direct flights from Illinois to Osaka?

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

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

    Yes. Cheapflights offers flight deals from Illinois to Osaka 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?

    Currently, September is the cheapest month in which you can book a flight from Illinois to Osaka (average of $801). Flying from Illinois to Osaka in January is currently the most expensive (average of $2,112). 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?

Book flights to Osaka if you plan to visit one of these locations
Nara

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Alternative routes for Illinois to Osaka

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Illinois to Osaka

Discover the top 4 airlines that operate flights from Illinois to Osaka. 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$1,025Average$1,391FlexibilityNo cancel feeOn-time67%
EVA AirCheapest$1,097Average$1,293FlexibilityNo cancel feeOn-time74%
ANACheapest$1,173Average$1,700FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$1,570Average$1,996FlexibilityNo cancel feeOn-time69%

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