Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Illinois to Osaka from $379

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 2/15. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Illinois to Osaka

Cheap round-trip flights

Enter your travel dates to find the best prices.
ANA Logo
11:20 am - 7:30 amSTL-ITM
29h 10m2 stops
ANA Logo
8:00 am - 12:25 pmITM-STL
19h 25m2 stops
$689ANA
Find Deal
Tue, Feb 3 - Thu, Feb 19
ANA Logo
7:41 am - 6:55 pmSTL-ITM
20h 14m2 stops
ANA Logo
3:00 pm - 7:19 pmITM-STL
19h 19m2 stops
$690ANA
Find Deal
Sun, Feb 15 - Sat, Feb 28
Japan Airlines Logo
7:15 am - 7:55 pmSTL-ITM
21h 40m2 stops
Japan Airlines Logo
3:25 pm - 11:59 pmITM-STL
23h 34m2 stops
$843Japan Airlines
Find Deal
Thu, Jan 22 - Mon, Feb 2
Air Canada Logo
7:07 am - 7:10 pmORD-ITM
21h 03m2 stops
Air Canada Logo
4:00 pm - 7:30 pmITM-ORD
18h 30m2 stops
$895Air Canada
Find Deal
Tue, Feb 24 - Wed, Mar 4
Air Canada Logo
1:05 pm - 6:55 pmORD-ITM
38h 50m2 stops
Air Canada Logo
2:00 pm - 7:30 pmITM-ORD
20h 30m2 stops
$923Air Canada
Find Deal
Mon, Feb 2 - Fri, Feb 13
United Airlines Logo
5:45 am - 6:10 pmORD-ITM
21h 25m2 stops
United Airlines Logo
1:00 pm - 3:10 pmITM-ORD
17h 10m1 stop
$1,134United Airlines
Find Deal
Tue, Feb 24 - Wed, Mar 4
Japan Airlines Logo
1:05 am - 7:35 amORD-ITM
16h 30m1 stop
Japan Airlines Logo
7:25 am - 9:15 amITM-ORD
15h 50m1 stop
$1,139Japan Airlines
Find Deal
Tue, Apr 21 - Wed, May 6
Multiple Airlines Logo
9:14 pm - 8:20 pmORD-ITM
32h 06m3 stops
Multiple Airlines Logo
10:45 am - 12:09 amITM-ORD
28h 24m3 stops
$1,143Multiple Airlines
Find Deal
Sun, Dec 7 - Sun, Dec 14
Multiple Airlines Logo
9:00 am - 7:50 pmORD-ITM
20h 50m2 stops
Multiple Airlines Logo
2:35 pm - 6:55 pmITM-ORD
18h 20m2 stops
$1,230Multiple Airlines
Find Deal
Wed, Apr 22 - Wed, May 6
United Airlines Logo
5:45 pm - 5:05 pmORD-ITM
33h 20m1 stop
United Airlines Logo
12:00 pm - 5:38 amITM-ORD
31h 38m2 stops
$1,255United Airlines
Find Deal
Wed, May 6 - Fri, May 22

ANA flights from Illinois to Osaka Itami Airport

Our best ANA deals on Illinois to Osaka Itami Airport flight tickets
ANA
Feb 3
STL11:20 amLambert-St Louis
29h 10m
2 stops
ITM7:30 amOsaka Itami
Feb 19
ITM8:00 amOsaka Itami
19h 25m
2 stops
STL12:25 pmLambert-St Louis
$689
Find similar
ANA
Feb 15
STL7:41 amLambert-St Louis
20h 14m
2 stops
ITM6:55 pmOsaka Itami
Feb 28
ITM3:00 pmOsaka Itami
19h 19m
2 stops
STL7:19 pmLambert-St Louis
$690
Find similar
ANA
Feb 15
STL7:41 amLambert-St Louis
20h 14m
2 stops
ITM6:55 pmOsaka Itami
Feb 28
ITM10:00 amOsaka Itami
24h 19m
2 stops
STL7:19 pmLambert-St Louis
$708
Find similar

Japan Airlines flights from Illinois to Osaka Itami Airport

Our best Japan Airlines deals on Illinois to Osaka Itami Airport flight tickets
Japan Airlines
Jan 22
STL7:15 amLambert-St Louis
21h 40m
2 stops
ITM7:55 pmOsaka Itami
Feb 2
ITM3:25 pmOsaka Itami
23h 34m
2 stops
STL11:59 pmLambert-St Louis
$843
Find similar
Japan Airlines
Apr 21
ORD1:05 amChicago O'Hare Intl
16h 30m
1 stop
ITM7:35 amOsaka Itami
May 6
ITM7:25 amOsaka Itami
15h 50m
1 stop
ORD9:15 amChicago O'Hare Intl
$1,139
Find similar
Japan Airlines
Dec 8
ORD5:35 pmChicago O'Hare Intl
25h 10m
1 stop
ITM9:45 amOsaka Itami
Dec 20
ITM6:40 pmOsaka Itami
27h 50m
2 stops
ORD7:30 amChicago O'Hare Intl
$1,184
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 November 10, 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

Tue 2/3

11:20 am-7:30 am

2 stops29h 10m

Osaka Itami

Thu 2/19

8:00 am-12:25 pm

2 stops19h 25m

$689

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Sun 2/15

7:41 am-6:55 pm

2 stops20h 14m

Osaka Itami

Sat 2/28

3:00 pm-7:19 pm

2 stops19h 19m

$690

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Thu 1/22

7:15 am-7:55 pm

2 stops21h 40m

Osaka Itami

Mon 2/2

3:25 pm-11:59 pm

2 stops23h 34m

$843

ChicagoOsaka

ORD - ITM

ORDITM

Chicago O'Hare Intl

Tue 2/24

7:07 am-7:10 pm

2 stops21h 03m

Osaka Itami

Wed 3/4

4:00 pm-7:30 pm

2 stops18h 30m

$895

ChicagoOsaka

ORD - ITM

ORDITM

Chicago O'Hare Intl

Mon 2/2

1:05 pm-6:55 pm

2 stops38h 50m

Osaka Itami

Fri 2/13

2:00 pm-7:30 pm

2 stops20h 30m

$923

ChicagoOsaka

ORD - ITM

ORDITM

Chicago O'Hare Intl

Tue 2/24

5:45 am-6:10 pm

2 stops21h 25m

Osaka Itami

Wed 3/4

1:00 pm-3:10 pm

1 stop17h 10m

$1,134

ChicagoOsaka

ORD - ITM

ORDITM

Chicago O'Hare Intl

Tue 4/21

1:05 am-7:35 am

1 stop16h 30m

Osaka Itami

Wed 5/6

7:25 am-9:15 am

1 stop15h 50m

$1,139

ChicagoOsaka

ORD - ITM

ORDITM

Chicago O'Hare Intl

Sun 12/7

9:14 pm-8:20 pm

3 stops32h 06m

Osaka Itami

Sun 12/14

10:45 am-12:09 am

3 stops28h 24m

$1,143

ChicagoOsaka

ORD - ITM

ORDITM

Chicago O'Hare Intl

Wed 4/22

9:00 am-7:50 pm

2 stops20h 50m

Osaka Itami

Wed 5/6

2:35 pm-6:55 pm

2 stops18h 20m

$1,230

ChicagoOsaka

ORD - ITM

ORDITM

Chicago O'Hare Intl

Wed 5/6

5:45 pm-5:05 pm

1 stop33h 20m

Osaka Itami

Fri 5/22

12:00 pm-5:38 am

2 stops31h 38m

$1,255

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

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
Air CanadaPriceFrom $1,025Free CancellationRating
7.1
10,437 reviews
Search Air Canada flights
ANAPriceFrom $1,174Free CancellationRating
8.4
1,003 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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 12/10
Wed 12/17
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Osaka

Popular cities in Japan

Popular flights according to clicks in the last 7 days on momondo
Flights to Tokyo Haneda Airportfrom $394
Flights to Tokyo Narita Airportfrom $473
Flights to Osaka Kansai Intl Airportfrom $503
Flights to Nagoya Chubu Centrair Intl Airportfrom $577