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Cheap flights from Illinois to Osaka from $522

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 Osaka departing on 8/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Illinois to Osaka

Cheap round-trip flights

Enter your travel dates to find the best prices.
ANA Logo
8:50 am - 8:35 pm
STL
-
ITM
21h 45m
2 stops
ANA Logo
10:00 am - 7:27 pm
ITM
-
STL
23h 27m
2 stops
$923ANA
Tue, Sep 15 - Tue, Sep 22
ANA Logo
8:50 am - 6:10 pm
STL
-
ITM
19h 20m
2 stops
ANA Logo
11:00 am - 7:27 pm
ITM
-
STL
22h 27m
2 stops
$924ANA
Tue, Sep 15 - Tue, Sep 22
Multiple Airlines Logo
8:55 am - 6:10 pm
STL
-
ITM
19h 15m
2 stops
Multiple Airlines Logo
8:25 am - 8:20 pm
ITM
-
STL
25h 55m
2 stops
$1,045Multiple Airlines
Tue, Sep 15 - Tue, Sep 22
ANA Logo
1:25 pm - 6:10 pm
STL
-
ITM
38h 45m
2 stops
ANA Logo
7:05 am - 2:10 pm
ITM
-
STL
21h 05m
2 stops
$1,083ANA
Sat, Sep 26 - Sat, Oct 10
Air Canada Logo
8:55 am - 6:10 pm
STL
-
ITM
19h 15m
2 stops
Air Canada Logo
12:50 pm - 2:02 pm
ITM
-
STL
39h 12m
2 stops
$1,106Air Canada
Wed, Sep 2 - Sun, Sep 6
Air Canada Logo
8:55 am - 6:55 pm
STL
-
ITM
20h 00m
2 stops
Air Canada Logo
2:00 pm - 8:24 pm
ITM
-
STL
20h 24m
2 stops
$1,151Air Canada
Wed, Aug 5 - Fri, Aug 14
Air Canada Logo
2:40 pm - 6:55 pm
STL
-
ITM
38h 15m
2 stops
Air Canada Logo
2:00 pm - 8:22 pm
ITM
-
STL
20h 22m
2 stops
$1,158Air Canada
Wed, Sep 2 - Sun, Sep 6
Multiple Airlines Logo
8:55 am - 6:55 pm
STL
-
ITM
20h 00m
2 stops
Multiple Airlines Logo
2:00 pm - 8:24 pm
ITM
-
STL
20h 24m
2 stops
$1,188Multiple Airlines
Mon, Aug 10 - Mon, Aug 17
Japan Airlines Logo
10:20 am - 7:50 pm
ORD
-
ITM
18h 30m
1 stop
Japan Airlines Logo
7:30 am - 7:30 am
ITM
-
ORD
15h 00m
1 stop
$1,299Japan Airlines
Wed, Nov 4 - Wed, Nov 11
Japan Airlines Logo
10:15 am - 8:30 pm
ORD
-
ITM
20h 15m
1 stop
Japan Airlines Logo
7:35 pm - 7:20 am
ITM
-
ORD
25h 45m
1 stop
$1,301Japan Airlines
Tue, Sep 15 - Tue, Sep 29

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United Airlines flights from Illinois to Osaka Itami Airport

Our best United Airlines deals on Illinois to Osaka Itami Airport flight tickets
United Airlines
Oct 20
ORD5:45 pmChicago O'Hare Intl
33h 20m
1 stop
ITM5:05 pmOsaka Itami
Nov 9
ITM1:00 pmOsaka Itami
33h 20m
1 stop
ORD7:20 amChicago O'Hare Intl
$1,361
United Airlines
Aug 2
ORD6:10 amChicago O'Hare Intl
20h 55m
2 stops
ITM5:05 pmOsaka Itami
Aug 12
ITM12:50 pmOsaka Itami
33h 50m
1 stop
ORD8:40 amChicago O'Hare Intl
$1,366
United Airlines
Jul 15
ORD6:00 amChicago O'Hare Intl
21h 05m
2 stops
ITM5:05 pmOsaka Itami
Aug 5
ITM12:50 pmOsaka Itami
33h 50m
1 stop
ORD8:40 amChicago O'Hare Intl
$1,861

American Airlines flights from Illinois to Osaka Itami Airport

Our best American Airlines deals on Illinois to Osaka Itami Airport flight tickets
American Airlines
Sep 15
ORD6:45 amChicago O'Hare Intl
20h 50m
2 stops
ITM5:35 pmOsaka Itami
Sep 29
ITM1:25 pmOsaka Itami
19h 00m
2 stops
ORD6:25 pmChicago O'Hare Intl
$1,374
American Airlines
Sep 15
ORD10:15 amChicago O'Hare Intl
19h 35m
1 stop
ITM7:50 pmOsaka Itami
Sep 29
ITM8:25 amOsaka Itami
19h 42m
2 stops
ORD2:07 pmChicago O'Hare Intl
$1,390
American Airlines
Sep 8
ORD7:22 amChicago O'Hare Intl
20h 13m
2 stops
ITM5:35 pmOsaka Itami
Nov 12
ITM7:30 amOsaka Itami
19h 38m
2 stops
ORD12:08 pmChicago O'Hare Intl
$1,394

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Osaka Itami Airport 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, momondo users made 832,500 searches. Data last updated July 3, 2026.
Use the filters below to find and compare flights from Illinois to Osaka Itami Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Tue 9/15

8:50 am-8:35 pm

2 stops21h 45m

Osaka Itami

Tue 9/22

10:00 am-7:27 pm

2 stops23h 27m

$923

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Tue 9/15

8:50 am-6:10 pm

2 stops19h 20m

Osaka Itami

Tue 9/22

11:00 am-7:27 pm

2 stops22h 27m

$924

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Tue 9/15

8:55 am-6:10 pm

2 stops19h 15m

Osaka Itami

Tue 9/22

8:25 am-8:20 pm

2 stops25h 55m

$1,045

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Sat 9/26

1:25 pm-6:10 pm

2 stops38h 45m

Osaka Itami

Sat 10/10

7:05 am-2:10 pm

2 stops21h 05m

$1,083

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Wed 9/2

8:55 am-6:10 pm

2 stops19h 15m

Osaka Itami

Sun 9/6

12:50 pm-2:02 pm

2 stops39h 12m

$1,106

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Wed 8/5

8:55 am-6:55 pm

2 stops20h 00m

Osaka Itami

Fri 8/14

2:00 pm-8:24 pm

2 stops20h 24m

$1,151

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Wed 9/2

2:40 pm-6:55 pm

2 stops38h 15m

Osaka Itami

Sun 9/6

2:00 pm-8:22 pm

2 stops20h 22m

$1,158

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Mon 8/10

8:55 am-6:55 pm

2 stops20h 00m

Osaka Itami

Mon 8/17

2:00 pm-8:24 pm

2 stops20h 24m

$1,188
Quickest round-trip

ChicagoOsaka

ORD - ITM

ORDITM

Chicago O'Hare Intl

Wed 11/4

10:20 am-7:50 pm

1 stop18h 30m

Osaka Itami

Wed 11/11

7:30 am-7:30 am

1 stop15h 00m

$1,299

ChicagoOsaka

ORD - ITM

ORDITM

Chicago O'Hare Intl

Tue 9/15

10:15 am-8:30 pm

1 stop20h 15m

Osaka Itami

Tue 9/29

7:35 pm-7:20 am

1 stop25h 45m

$1,301

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Osaka from

How to get the cheapest flight ticket from Illinois to Osaka Itami Airport

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

Can stopping save me money on Illinois to Osaka Itami Airport flights?

You could potentially save up to 26% on your flight if you consider stops on a Illinois to Osaka Itami Airport flight.

Cheap Illinois to Osaka Itami Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Osaka Itami Airport

Fastest flight time

16h 05m

Direct flights

None
The fastest flight from Illinois to Osaka Itami Airport takes 16h 05m
There are no direct flights from Illinois to Osaka Itami Airport. There are no popular flight routes from Illinois to Osaka Itami Airport.
Search flight deals

Frequently asked questions about flying from Illinois to Osaka Itami Airport

  • When did momondo last update prices for flights from Illinois to Osaka Itami Airport?

    Prices for flights from Illinois to Osaka Itami Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Illinois to Osaka Itami Airport?

  • How old do you have to be to fly from Illinois to Osaka Itami Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Illinois to Osaka Itami Airport.

  • What documentation or ID do you need to fly to Osaka Itami Airport?

    The travel and health documents required for your trip to Osaka Itami Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Osaka Itami Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Illinois to Osaka Itami Airport

Compare and see reviews for airlines that fly from Illinois to Osaka Itami Airport with momondo
Airline
Rating
Free Cancellation
Price
Japan AirlinesPriceFrom $1,097Free CancellationRating
8.3
1,858 reviews
Search Japan Airlines flights
ANAPriceFrom $1,162Free CancellationRating
8.3
1,260 reviews
Search ANA flights

Traveling to a place near Osaka?

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

Why use momondo?

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

It is quick and easy to find Illinois to Osaka flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Osaka that suits you.

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

momondo does allow users to show only those flights to Osaka from Illinois which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Illinois to Osaka flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to Osaka from Illinois. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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