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Cheap flights from Illinois to Osaka from $458

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 9/12. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Illinois to Osaka

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
12:10 pm - 4:25 pm
STL
-
KIX
38h 15m
2 stops
Air Canada Logo
6:00 pm - 6:41 pm
KIX
-
STL
38h 41m
2 stops
$963Air Canada
Tue, Sep 15 - Tue, Sep 22
Air Canada Logo
8:55 am - 4:25 pm
STL
-
KIX
17h 30m
1 stop
Air Canada Logo
6:00 pm - 6:41 pm
KIX
-
STL
38h 41m
2 stops
$968Air Canada
Tue, Sep 15 - Tue, Sep 22
Air Canada Logo
2:40 pm - 4:25 pm
STL
-
KIX
35h 45m
1 stop
Air Canada Logo
6:00 pm - 6:41 pm
KIX
-
STL
38h 41m
2 stops
$970Air Canada
Mon, Aug 31 - Thu, Sep 10
Air Canada Logo
12:10 pm - 4:25 pm
STL
-
KIX
38h 15m
2 stops
Air Canada Logo
6:00 pm - 6:41 pm
KIX
-
STL
38h 41m
2 stops
$973Air Canada
Mon, Aug 31 - Thu, Sep 10
Cathay Pacific Logo
4:00 pm - 6:40 am
ORD
-
KIX
24h 40m
1 stop
Cathay Pacific Logo
9:05 am - 1:55 pm
KIX
-
ORD
42h 50m
1 stop
$1,060Cathay Pacific
Tue, Sep 15 - Tue, Sep 29
Cathay Pacific Logo
4:00 pm - 6:40 am
ORD
-
KIX
24h 40m
1 stop
Cathay Pacific Logo
5:35 pm - 1:55 pm
KIX
-
ORD
34h 20m
1 stop
$1,064Cathay Pacific
Tue, Sep 15 - Tue, Sep 29
Delta Logo
9:20 am - 10:40 pm
MDW
-
KIX
23h 20m
2 stops
Delta Logo
2:15 am - 12:34 pm
KIX
-
MDW
24h 19m
2 stops
$1,382Delta
Wed, Sep 9 - Thu, Sep 24
Delta Logo
9:30 am - 10:40 pm
MDW
-
KIX
23h 10m
2 stops
Delta Logo
12:35 pm - 10:25 pm
KIX
-
MDW
23h 50m
2 stops
$1,432Delta
Fri, Sep 11 - Tue, Sep 22
Multiple Airlines Logo
6:25 pm - 12:00 pm
MDW
-
KIX
27h 35m
2 stops
Multiple Airlines Logo
7:05 pm - 5:55 am
KIX
-
MDW
24h 50m
2 stops
$1,464Multiple Airlines
Sat, Sep 12 - Sat, Sep 19
Multiple Airlines Logo
8:40 pm - 9:55 am
MDW
-
KIX
23h 15m
2 stops
Multiple Airlines Logo
6:10 pm - 6:05 am
KIX
-
MDW
26h 55m
2 stops
$1,469Multiple Airlines
Wed, Oct 28 - Mon, Nov 9

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Air Canada flights from Illinois to Osaka Kansai Intl Airport

Our best Air Canada deals on Illinois to Osaka Kansai Intl Airport flight tickets
Air Canada
Sep 15
STL12:10 pmLambert-St Louis
38h 15m
2 stops
KIX4:25 pmOsaka Kansai Intl
Sep 22
KIX6:00 pmOsaka Kansai Intl
38h 41m
2 stops
STL6:41 pmLambert-St Louis
$963
Air Canada
Sep 15
STL8:55 amLambert-St Louis
17h 30m
1 stop
KIX4:25 pmOsaka Kansai Intl
Sep 22
KIX6:00 pmOsaka Kansai Intl
38h 41m
2 stops
STL6:41 pmLambert-St Louis
$968
Air Canada
Aug 31
STL2:40 pmLambert-St Louis
35h 45m
1 stop
KIX4:25 pmOsaka Kansai Intl
Sep 10
KIX6:00 pmOsaka Kansai Intl
38h 41m
2 stops
STL6:41 pmLambert-St Louis
$970

EVA Air flights from Illinois to Osaka Kansai Intl Airport

Our best EVA Air deals on Illinois to Osaka Kansai Intl Airport flight tickets
EVA Air
Oct 27
ORD12:30 amChicago O'Hare Intl
19h 25m
1 stop
KIX9:55 amOsaka Kansai Intl
Nov 9
KIX6:10 pmOsaka Kansai Intl
40h 25m
1 stop
ORD7:35 pmChicago O'Hare Intl
$1,240
EVA Air
Oct 27
ORD12:30 amChicago O'Hare Intl
21h 25m
1 stop
KIX11:55 amOsaka Kansai Intl
Nov 11
KIX10:55 amOsaka Kansai Intl
23h 40m
1 stop
ORD7:35 pmChicago O'Hare Intl
$1,243
EVA Air
Sep 6
ORD12:30 amChicago O'Hare Intl
26h 45m
1 stop
KIX5:15 pmOsaka Kansai Intl
Sep 20
KIX6:30 pmOsaka Kansai Intl
40h 15m
1 stop
ORD8:45 pmChicago O'Hare Intl
$1,252

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 June 10, 2026.
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

Cheapest round-trip

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Tue 9/15

12:10 pm-4:25 pm

2 stops38h 15m

Osaka Kansai Intl

Tue 9/22

6:00 pm-6:41 pm

2 stops38h 41m

$963

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Tue 9/15

8:55 am-4:25 pm

1 stop17h 30m

Osaka Kansai Intl

Tue 9/22

6:00 pm-6:41 pm

2 stops38h 41m

$968

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Mon 8/31

2:40 pm-4:25 pm

1 stop35h 45m

Osaka Kansai Intl

Thu 9/10

6:00 pm-6:41 pm

2 stops38h 41m

$970

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Mon 8/31

12:10 pm-4:25 pm

2 stops38h 15m

Osaka Kansai Intl

Thu 9/10

6:00 pm-6:41 pm

2 stops38h 41m

$973

ChicagoOsaka

ORD - KIX

ORDKIX

Chicago O'Hare Intl

Tue 9/15

4:00 pm-6:40 am

1 stop24h 40m

Osaka Kansai Intl

Tue 9/29

9:05 am-1:55 pm

1 stop42h 50m

$1,060

ChicagoOsaka

ORD - KIX

ORDKIX

Chicago O'Hare Intl

Tue 9/15

4:00 pm-6:40 am

1 stop24h 40m

Osaka Kansai Intl

Tue 9/29

5:35 pm-1:55 pm

1 stop34h 20m

$1,064

ChicagoOsaka

MDW - KIX

MDWKIX

Chicago Midway

Wed 9/9

9:20 am-10:40 pm

2 stops23h 20m

Osaka Kansai Intl

Thu 9/24

2:15 am-12:34 pm

2 stops24h 19m

$1,382
Quickest round-trip

ChicagoOsaka

MDW - KIX

MDWKIX

Chicago Midway

Fri 9/11

9:30 am-10:40 pm

2 stops23h 10m

Osaka Kansai Intl

Tue 9/22

12:35 pm-10:25 pm

2 stops23h 50m

$1,432

ChicagoOsaka

MDW - KIX

MDWKIX

Chicago Midway

Sat 9/12

6:25 pm-12:00 pm

2 stops27h 35m

Osaka Kansai Intl

Sat 9/19

7:05 pm-5:55 am

2 stops24h 50m

$1,464

ChicagoOsaka

MDW - KIX

MDWKIX

Chicago Midway

Wed 10/28

8:40 pm-9:55 am

2 stops23h 15m

Osaka Kansai Intl

Mon 11/9

6:10 pm-6:05 am

2 stops26h 55m

$1,469

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 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, February 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 $0. If you aren’t able to travel during the month of February, then book flights to Osaka Kansai Intl Airport from Illinois during October instead. Flights to Osaka Kansai Intl Airport in October, while not as cheap as those in February, still average around $761.

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

You could potentially save up to 9% 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

Fastest flight time

19h 20m

Direct flights

None
The fastest flight from Illinois to Osaka Kansai Intl Airport takes 19h 20m
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.
Search flight deals

Frequently asked questions about flying from Illinois to Osaka Kansai Intl Airport

  • 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
EVA AirPriceFrom $1,008Free CancellationRating
8.5
1,470 reviews
Search EVA Air flights
Japan AirlinesPriceFrom $1,039Free CancellationRating
8.3
1,837 reviews
Search Japan Airlines flights
United AirlinesPriceFrom $1,145Free CancellationRating
7.4
9,805 reviews
Search United Airlines flights
ANAPriceFrom $1,170Free CancellationRating
8.3
1,230 reviews
Search ANA flights

Traveling to a place near Osaka?

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