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Cheap flights from Illinois to Osaka from $476

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 11/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Illinois to Osaka

Cheap round-trip flights

ANA Logo
6:00 am - 7:10 pmSTL-ITM
22h 10m2 stops
ANA Logo
12:00 pm - 7:25 pmITM-STL
22h 25m2 stops
$678ANA
Find Deal
Sun, Feb 15 - Sat, Feb 28
Japan Airlines Logo
6:04 am - 7:55 pmSTL-ITM
22h 51m2 stops
Japan Airlines Logo
2:40 pm - 11:08 pmITM-STL
23h 28m2 stops
$769Japan Airlines
Find Deal
Sun, Feb 15 - Sat, Feb 28
American Airlines Logo
7:01 am - 7:10 pmSTL-ITM
22h 09m2 stops
American Airlines Logo
7:25 am - 2:09 pmITM-STL
21h 44m2 stops
$875American Airlines
Find Deal
Mon, Oct 20 - Thu, Dec 25
Air Canada Logo
3:40 pm - 6:55 pmORD-ITM
36h 15m2 stops
Air Canada Logo
2:05 pm - 2:41 pmITM-ORD
39h 36m2 stops
$950Air Canada
Find Deal
Mon, Feb 2 - Tue, Feb 10
Air Canada Logo
3:40 pm - 6:55 pmORD-ITM
36h 15m2 stops
Air Canada Logo
2:05 pm - 2:41 pmITM-ORD
39h 36m2 stops
$1,011Air Canada
Find Deal
Sat, Dec 6 - Sat, Dec 13
United Airlines Logo
3:15 pm - 6:10 pmSTL-ITM
59h 55m2 stops
United Airlines Logo
1:00 pm - 2:18 pmITM-STL
39h 18m2 stops
$1,024United Airlines
Find Deal
Sat, Mar 7 - Sun, Mar 15
United Airlines Logo
3:15 pm - 6:10 pmSTL-ITM
59h 55m2 stops
United Airlines Logo
1:00 pm - 3:21 pmITM-STL
40h 21m3 stops
$1,037United Airlines
Find Deal
Sat, Mar 7 - Sun, Mar 15
Multiple Airlines Logo
5:45 pm - 7:25 amORD-ITM
23h 40m1 stop
Multiple Airlines Logo
9:00 am - 10:57 pmITM-ORD
27h 57m2 stops
$1,062Multiple Airlines
Find Deal
Thu, Oct 23 - Thu, Oct 30
Multiple Airlines Logo
7:10 am - 7:10 pmORD-ITM
21h 00m2 stops
Multiple Airlines Logo
3:00 pm - 3:10 pmITM-ORD
15h 10m1 stop
$1,116Multiple Airlines
Find Deal
Tue, Nov 4 - Tue, Nov 18
American Airlines Logo
5:35 pm - 11:45 amORD-ITM
27h 10m1 stop
American Airlines Logo
2:40 pm - 1:40 pmITM-ORD
14h 00m1 stop
$1,163American Airlines
Find Deal
Sat, Nov 15 - Thu, Nov 27

American Airlines flights from Illinois to Osaka Itami Airport

Our best American Airlines deals on Illinois to Osaka Itami Airport flight tickets
American Airlines
Oct 20
STL7:01 amLambert-St Louis
22h 09m
2 stops
ITM7:10 pmOsaka Itami
Dec 25
ITM7:25 amOsaka Itami
21h 44m
2 stops
STL2:09 pmLambert-St Louis
$875
Find similar
American Airlines
Nov 15
ORD5:35 pmChicago O'Hare Intl
27h 10m
1 stop
ITM11:45 amOsaka Itami
Nov 27
ITM2:40 pmOsaka Itami
14h 00m
1 stop
ORD1:40 pmChicago O'Hare Intl
$1,163
Find similar
American Airlines
Nov 12
ORD8:35 amChicago O'Hare Intl
20h 40m
2 stops
ITM8:15 pmOsaka Itami
Nov 24
ITM2:40 pmOsaka Itami
18h 11m
2 stops
ORD5:51 pmChicago O'Hare Intl
$1,178
Find similar

Air Canada flights from Illinois to Osaka Itami Airport

Our best Air Canada deals on Illinois to Osaka Itami Airport flight tickets
Air Canada
Feb 2
ORD3:40 pmChicago O'Hare Intl
36h 15m
2 stops
ITM6:55 pmOsaka Itami
Feb 10
ITM2:05 pmOsaka Itami
39h 36m
2 stops
ORD2:41 pmChicago O'Hare Intl
$950
Find similar
Air Canada
Dec 6
ORD3:40 pmChicago O'Hare Intl
36h 15m
2 stops
ITM6:55 pmOsaka Itami
Dec 13
ITM2:05 pmOsaka Itami
39h 36m
2 stops
ORD2:41 pmChicago O'Hare Intl
$1,011
Find similar
Air Canada
Jan 13
ORD3:40 pmChicago O'Hare Intl
36h 15m
2 stops
ITM6:55 pmOsaka Itami
Jan 20
ITM2:05 pmOsaka Itami
39h 36m
2 stops
ORD2:41 pmChicago O'Hare Intl
$1,017
Find similar

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 September 25, 2025.
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

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Sun 2/15

6:00 am-7:10 pm

2 stops22h 10m

Osaka Itami

Sat 2/28

12:00 pm-7:25 pm

2 stops22h 25m

$678

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Sun 2/15

6:04 am-7:55 pm

2 stops22h 51m

Osaka Itami

Sat 2/28

2:40 pm-11:08 pm

2 stops23h 28m

$769

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Mon 10/20

7:01 am-7:10 pm

2 stops22h 09m

Osaka Itami

Thu 12/25

7:25 am-2:09 pm

2 stops21h 44m

$875

ChicagoOsaka

ORD - ITM

ORDITM

Chicago O'Hare Intl

Mon 2/2

3:40 pm-6:55 pm

2 stops36h 15m

Osaka Itami

Tue 2/10

2:05 pm-2:41 pm

2 stops39h 36m

$950

ChicagoOsaka

ORD - ITM

ORDITM

Chicago O'Hare Intl

Sat 12/6

3:40 pm-6:55 pm

2 stops36h 15m

Osaka Itami

Sat 12/13

2:05 pm-2:41 pm

2 stops39h 36m

$1,011

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Sat 3/7

3:15 pm-6:10 pm

2 stops59h 55m

Osaka Itami

Sun 3/15

1:00 pm-2:18 pm

2 stops39h 18m

$1,024

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Sat 3/7

3:15 pm-6:10 pm

2 stops59h 55m

Osaka Itami

Sun 3/15

1:00 pm-3:21 pm

3 stops40h 21m

$1,037

ChicagoOsaka

ORD - ITM

ORDITM

Chicago O'Hare Intl

Thu 10/23

5:45 pm-7:25 am

1 stop23h 40m

Osaka Itami

Thu 10/30

9:00 am-10:57 pm

2 stops27h 57m

$1,062

ChicagoOsaka

ORD - ITM

ORDITM

Chicago O'Hare Intl

Tue 11/4

7:10 am-7:10 pm

2 stops21h 00m

Osaka Itami

Tue 11/18

3:00 pm-3:10 pm

1 stop15h 10m

$1,116

ChicagoOsaka

ORD - ITM

ORDITM

Chicago O'Hare Intl

Sat 11/15

5:35 pm-11:45 am

1 stop27h 10m

Osaka Itami

Thu 11/27

2:40 pm-1:40 pm

1 stop14h 00m

$1,163

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

What is the cheapest day to depart on your flight to Osaka Itami Airport?

The cheapest day to depart on your flight to Osaka Itami Airport is on a Wednesday when prices can be found for as low as $1,227. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Osaka Itami Airport is Saturday, with ticket prices averaging around $2,151.

What is the cheapest time of day to depart on your flight to Osaka Itami Airport?

Flying to Osaka Itami Airport from Illinois in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $1,224 when looking at flights departing in the afternoon. Flights at noon are often more expensive with an average ticket price of $1,679.

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

Direct flights

None
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

  • 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 $983Free CancellationRating
8.4
972 reviews
Search ANA flights
Air CanadaPriceFrom $1,025Free CancellationRating
7.1
10,000 reviews
Search Air Canada 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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