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Cheap flights from Illinois to Osaka from $450

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 9/10. 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
0 bags

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Find the cheapest flights from Illinois to Osaka

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
12:59 pm - 5:05 pm
STL
-
ITM
38h 06m
2 stops
United Airlines Logo
12:50 pm - 10:59 pm
ITM
-
STL
24h 09m
2 stops
$1,098United Airlines
Mon, Aug 24 - Fri, Aug 28
United Airlines Logo
7:00 am - 5:05 pm
STL
-
ITM
44h 05m
2 stops
United Airlines Logo
12:50 pm - 10:00 pm
ITM
-
STL
23h 10m
2 stops
$1,104United Airlines
Mon, Aug 24 - Fri, Aug 28
Multiple Airlines Logo
11:50 am - 6:55 pm
ORD
-
ITM
17h 05m
1 stop
Multiple Airlines Logo
8:20 pm - 9:34 pm
ITM
-
ORD
39h 14m
2 stops
$1,145Multiple Airlines
Tue, Oct 6 - Tue, Oct 20
American Airlines Logo
6:30 am - 6:40 pm
STL
-
ITM
22h 10m
2 stops
American Airlines Logo
2:35 pm - 10:00 pm
ITM
-
STL
21h 25m
2 stops
$1,184American Airlines
Tue, Sep 15 - Tue, Sep 22
Multiple Airlines Logo
11:50 am - 6:55 pm
ORD
-
ITM
17h 05m
1 stop
Multiple Airlines Logo
2:00 pm - 9:34 pm
ITM
-
ORD
45h 34m
2 stops
$1,200Multiple Airlines
Wed, Sep 2 - Thu, Oct 1
ANA Logo
6:14 am - 6:10 pm
STL
-
ITM
21h 56m
2 stops
ANA Logo
2:00 pm - 6:16 pm
ITM
-
STL
18h 16m
2 stops
$1,223ANA
Tue, Sep 15 - Tue, Sep 22
American Airlines Logo
5:42 am - 7:10 pm
STL
-
ITM
23h 28m
2 stops
American Airlines Logo
4:30 pm - 11:02 pm
ITM
-
STL
20h 32m
2 stops
$1,283American Airlines
Fri, Sep 4 - Sat, Sep 12
Japan Airlines Logo
8:36 am - 5:45 pm
STL
-
ITM
19h 09m
2 stops
Japan Airlines Logo
7:05 am - 6:10 pm
ITM
-
STL
25h 05m
2 stops
$1,317Japan Airlines
Wed, Aug 5 - Fri, Aug 14
Japan Airlines Logo
9:31 am - 8:25 pm
STL
-
ITM
20h 54m
2 stops
Japan Airlines Logo
4:45 pm - 10:55 pm
ITM
-
STL
20h 10m
2 stops
$1,412Japan Airlines
Sat, Aug 22 - Sat, Aug 29
ANA Logo
8:50 am - 6:55 pm
ORD
-
ITM
20h 05m
2 stops
ANA Logo
2:00 pm - 8:12 pm
ITM
-
ORD
20h 12m
2 stops
$1,553ANA
Wed, Sep 9 - Wed, Sep 16

Air Canada flights from Illinois to Osaka Itami Airport

Our best Air Canada deals on Illinois to Osaka Itami Airport flight tickets
Air Canada
Sep 19
ORD3:40 pmChicago O'Hare Intl
37h 15m
2 stops
ITM6:55 pmOsaka Itami
Oct 6
ITM2:00 pmOsaka Itami
38h 48m
2 stops
ORD2:48 pmChicago O'Hare Intl
$1,456
Air Canada
Sep 15
ORD7:11 amChicago O'Hare Intl
21h 44m
2 stops
ITM6:55 pmOsaka Itami
Sep 29
ITM2:00 pmOsaka Itami
20h 12m
2 stops
ORD8:12 pmChicago O'Hare Intl
$1,459
Air Canada
Sep 15
ORD7:11 amChicago O'Hare Intl
21h 44m
2 stops
ITM6:55 pmOsaka Itami
Sep 29
ITM2:00 pmOsaka Itami
20h 12m
2 stops
ORD8:12 pmChicago O'Hare Intl
$1,498

United Airlines flights from Illinois to Osaka Itami Airport

Our best United Airlines deals on Illinois to Osaka Itami Airport flight tickets
United Airlines
Aug 24
STL12:59 pmLambert-St Louis
38h 06m
2 stops
ITM5:05 pmOsaka Itami
Aug 28
ITM12:50 pmOsaka Itami
19h 49m
2 stops
STL6:39 pmLambert-St Louis
$1,097
United Airlines
Aug 24
STL12:59 pmLambert-St Louis
38h 06m
2 stops
ITM5:05 pmOsaka Itami
Aug 28
ITM12:50 pmOsaka Itami
24h 09m
2 stops
STL10:59 pmLambert-St Louis
$1,098
United Airlines
Aug 24
STL7:00 amLambert-St Louis
44h 05m
2 stops
ITM5:05 pmOsaka Itami
Aug 28
ITM12:50 pmOsaka Itami
23h 10m
2 stops
STL10:00 pmLambert-St Louis
$1,104

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 May 16, 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

Mon 8/24

12:59 pm-5:05 pm

2 stops38h 06m

Osaka Itami

Fri 8/28

12:50 pm-10:59 pm

2 stops24h 09m

$1,098

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Mon 8/24

7:00 am-5:05 pm

2 stops44h 05m

Osaka Itami

Fri 8/28

12:50 pm-10:00 pm

2 stops23h 10m

$1,104

ChicagoOsaka

ORD - ITM

ORDITM

Chicago O'Hare Intl

Tue 10/6

11:50 am-6:55 pm

1 stop17h 05m

Osaka Itami

Tue 10/20

8:20 pm-9:34 pm

2 stops39h 14m

$1,145

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Tue 9/15

6:30 am-6:40 pm

2 stops22h 10m

Osaka Itami

Tue 9/22

2:35 pm-10:00 pm

2 stops21h 25m

$1,184

ChicagoOsaka

ORD - ITM

ORDITM

Chicago O'Hare Intl

Wed 9/2

11:50 am-6:55 pm

1 stop17h 05m

Osaka Itami

Thu 10/1

2:00 pm-9:34 pm

2 stops45h 34m

$1,200
Quickest round-trip

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Tue 9/15

6:14 am-6:10 pm

2 stops21h 56m

Osaka Itami

Tue 9/22

2:00 pm-6:16 pm

2 stops18h 16m

$1,223

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Fri 9/4

5:42 am-7:10 pm

2 stops23h 28m

Osaka Itami

Sat 9/12

4:30 pm-11:02 pm

2 stops20h 32m

$1,283

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Wed 8/5

8:36 am-5:45 pm

2 stops19h 09m

Osaka Itami

Fri 8/14

7:05 am-6:10 pm

2 stops25h 05m

$1,317

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Sat 8/22

9:31 am-8:25 pm

2 stops20h 54m

Osaka Itami

Sat 8/29

4:45 pm-10:55 pm

2 stops20h 10m

$1,412

ChicagoOsaka

ORD - ITM

ORDITM

Chicago O'Hare Intl

Wed 9/9

8:50 am-6:55 pm

2 stops20h 05m

Osaka Itami

Wed 9/16

2:00 pm-8:12 pm

2 stops20h 12m

$1,553

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 42% 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 00m

Direct flights

None
The fastest flight from Illinois to Osaka Itami Airport takes 16h 00m
There are no direct flights from Illinois to Osaka Itami Airport. There are no popular flight routes from Illinois to Osaka Itami Airport.
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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
ANAPriceFrom $1,022Free CancellationRating
8.3
1,210 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.

An easier way to manage your Osaka Itami Airport trip

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