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Cheap flights from Illinois to Osaka from $373

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

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Find the cheapest flights from Illinois to Osaka

Cheap round-trip flights

Cathay Pacific Logo
4:00 pm - 6:40 amORD-KIX
24h 40m1 stop
Cathay Pacific Logo
5:45 pm - 2:25 pmKIX-ORD
34h 40m1 stop
$669Cathay Pacific
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Mon, Sep 15 - Tue, Sep 30
Cathay Pacific Logo
4:00 pm - 6:40 amORD-KIX
24h 40m1 stop
Cathay Pacific Logo
6:35 pm - 2:25 pmKIX-ORD
33h 50m1 stop
$673Cathay Pacific
Find Deal
Mon, Sep 15 - Tue, Sep 30
Air Canada Logo
4:05 pm - 7:25 pmSTL-KIX
36h 20m2 stops
Air Canada Logo
3:40 pm - 3:29 pmKIX-STL
38h 49m2 stops
$675Air Canada
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Sun, Feb 15 - Sat, Feb 28
Japan Airlines Logo
6:10 am - 6:50 pmSTL-KIX
21h 40m1 stop
Japan Airlines Logo
5:50 pm - 11:08 pmKIX-STL
20h 18m1 stop
$732Japan Airlines
Find Deal
Sun, Feb 15 - Sat, Feb 28
Japan Airlines Logo
6:10 am - 6:50 pmSTL-KIX
21h 40m1 stop
Japan Airlines Logo
7:00 am - 11:10 amKIX-STL
19h 10m2 stops
$734Japan Airlines
Find Deal
Sun, Feb 15 - Sat, Feb 28
United Airlines Logo
5:28 pm - 2:50 pmSTL-KIX
31h 22m2 stops
United Airlines Logo
4:50 pm - 9:52 amKIX-STL
31h 02m2 stops
$741United Airlines
Find Deal
Sat, Sep 27 - Wed, Oct 1
United Airlines Logo
5:35 pm - 2:50 pmSTL-KIX
31h 15m1 stop
United Airlines Logo
8:30 am - 6:17 pmKIX-STL
23h 47m2 stops
$748United Airlines
Find Deal
Sat, Sep 27 - Wed, Oct 1
Air Canada Logo
4:05 pm - 4:25 pmSTL-KIX
34h 20m1 stop
Air Canada Logo
6:05 pm - 10:49 amKIX-STL
30h 44m2 stops
$763Air Canada
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Wed, Sep 17 - Wed, Sep 24
Logo
12:54 pm - 9:40 amORD-KIX
30h 46m2 stops
Logo
9:10 am - 6:14 pmKIX-ORD
23h 04m2 stops
$825
Find Deal
Mon, Sep 15 - Tue, Sep 30
Logo
12:54 pm - 9:40 amORD-KIX
30h 46m2 stops
Logo
5:00 pm - 10:42 amKIX-ORD
31h 42m3 stops
$852
Find Deal
Thu, Sep 11 - Sat, Sep 20

Delta flights from Illinois to Osaka Kansai Intl Airport

Our best Delta deals on Illinois to Osaka Kansai Intl Airport flight tickets
Delta
Nov 3
MDW6:00 amChicago Midway
24h 00m
2 stops
KIX9:00 pmOsaka Kansai Intl
Nov 24
KIX11:55 amOsaka Kansai Intl
24h 49m
2 stops
MDW9:44 pmChicago Midway
$1,250
Find similar
Delta
Sep 15
MDW6:30 pmChicago Midway
32h 25m
2 stops
KIX4:55 pmOsaka Kansai Intl
Sep 30
KIX9:05 amOsaka Kansai Intl
37h 48m
2 stops
MDW8:53 amChicago Midway
$1,305
Find similar
Delta
Feb 7
MDW6:45 pmChicago Midway
35h 15m
2 stops
KIX9:00 pmOsaka Kansai Intl
Feb 15
KIX11:55 amOsaka Kansai Intl
24h 51m
2 stops
MDW9:46 pmChicago Midway
$1,350
Find similar

Cathay Pacific flights from Illinois to Osaka Kansai Intl Airport

Our best Cathay Pacific deals on Illinois to Osaka Kansai Intl Airport flight tickets
Cathay Pacific
Sep 15
ORD4:00 pmChicago O'Hare Intl
24h 40m
1 stop
KIX6:40 amOsaka Kansai Intl
Sep 30
KIX5:45 pmOsaka Kansai Intl
34h 40m
1 stop
ORD2:25 pmChicago O'Hare Intl
$669
Find similar
Cathay Pacific
Sep 15
ORD4:00 pmChicago O'Hare Intl
24h 40m
1 stop
KIX6:40 amOsaka Kansai Intl
Sep 30
KIX6:35 pmOsaka Kansai Intl
33h 50m
1 stop
ORD2:25 pmChicago O'Hare Intl
$673
Find similar
Cathay Pacific
Sep 15
ORD4:00 pmChicago O'Hare Intl
24h 40m
1 stop
KIX6:40 amOsaka Kansai Intl
Sep 30
KIX6:35 pmOsaka Kansai Intl
33h 50m
1 stop
ORD2:25 pmChicago O'Hare Intl
$678
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Osaka Kansai Intl 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 August 21, 2025.
Use the filters below to find and compare flights from Illinois to Osaka Kansai Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoOsaka

ORD - KIX

ORDKIX

Chicago O'Hare Intl

Mon 9/15

4:00 pm-6:40 am

1 stop24h 40m

Osaka Kansai Intl

Tue 9/30

5:45 pm-2:25 pm

1 stop34h 40m

$669

ChicagoOsaka

ORD - KIX

ORDKIX

Chicago O'Hare Intl

Mon 9/15

4:00 pm-6:40 am

1 stop24h 40m

Osaka Kansai Intl

Tue 9/30

6:35 pm-2:25 pm

1 stop33h 50m

$673

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Sun 2/15

4:05 pm-7:25 pm

2 stops36h 20m

Osaka Kansai Intl

Sat 2/28

3:40 pm-3:29 pm

2 stops38h 49m

$675

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Sun 2/15

6:10 am-6:50 pm

1 stop21h 40m

Osaka Kansai Intl

Sat 2/28

5:50 pm-11:08 pm

1 stop20h 18m

$732

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Sun 2/15

6:10 am-6:50 pm

1 stop21h 40m

Osaka Kansai Intl

Sat 2/28

7:00 am-11:10 am

2 stops19h 10m

$734

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Sat 9/27

5:28 pm-2:50 pm

2 stops31h 22m

Osaka Kansai Intl

Wed 10/1

4:50 pm-9:52 am

2 stops31h 02m

$741

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Sat 9/27

5:35 pm-2:50 pm

1 stop31h 15m

Osaka Kansai Intl

Wed 10/1

8:30 am-6:17 pm

2 stops23h 47m

$748

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Wed 9/17

4:05 pm-4:25 pm

1 stop34h 20m

Osaka Kansai Intl

Wed 9/24

6:05 pm-10:49 am

2 stops30h 44m

$763

ChicagoOsaka

ORD - KIX

ORDKIX

Chicago O'Hare Intl

Mon 9/15

12:54 pm-9:40 am

2 stops30h 46m

Osaka Kansai Intl

Tue 9/30

9:10 am-6:14 pm

2 stops23h 04m

$825

ChicagoOsaka

ORD - KIX

ORDKIX

Chicago O'Hare Intl

Thu 9/11

12:54 pm-9:40 am

2 stops30h 46m

Osaka Kansai Intl

Sat 9/20

5:00 pm-10:42 am

3 stops31h 42m

$852

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 Kansai Intl 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 month to fly to Osaka Kansai Intl Airport?

In general, October is the cheapest month to fly from Illinois to Osaka Kansai Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,044. If you aren’t able to travel during the month of October, then book flights to Osaka Kansai Intl Airport from Illinois during November instead. Flights to Osaka Kansai Intl Airport in November, while not as cheap as those in October, still average around $1,125.

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

The cheapest day to depart from Illinois to Osaka Kansai Intl Airport is on a Monday. Travelers who choose to depart for Osaka Kansai Intl Airport on a Monday will often find tickets for as low as $1,100. Flights from Illinois to Osaka Kansai Intl Airport on a Thursday will generally be more expensive and average around $1,623. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our data shows that the cheapest Illinois to Osaka Kansai Intl Airport flights are usually those with departure times in the afternoon. Our users have found flights to Osaka Kansai Intl Airport in the afternoon for as low as $1,213. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,689 on average. Flights to Osaka Kansai Intl Airport from Illinois at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You could potentially save up to 50% on your flight if you consider stops on a Illinois to Osaka Kansai Intl Airport flight.

Cheap Illinois to Osaka Kansai Intl Airport flight deals and tips

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

Direct flights

None
There are no direct flights from Illinois to Osaka Kansai Intl Airport. There are no popular flight routes from Illinois to Osaka Kansai Intl Airport.
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  • When did momondo last update prices for flights from Illinois to Osaka Kansai Intl Airport?

    Prices for flights from Illinois to Osaka Kansai Intl Airport were last updated today.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Osaka Kansai Intl Airport.

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

    The travel and health documents you'll need for your trip to Osaka Kansai Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Osaka Kansai Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Illinois to Osaka Kansai Intl Airport

Compare and see reviews for airlines that fly from Illinois to Osaka Kansai Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
ANAPriceFrom $1,067Free CancellationRating
8.4
938 reviews
Search ANA flights
EVA AirPriceFrom $1,097Free CancellationRating
8.4
1,232 reviews
Search EVA Air flights
United AirlinesPriceFrom $1,099Free CancellationRating
7.4
8,930 reviews
Search United Airlines flights

Traveling to a place near Osaka?

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

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Illinois to Osaka. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to Osaka from Illinois with this policy.

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

momondo provides multiple filters to help you find the best flight to Osaka from Illinois. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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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