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Cheap flights from Illinois to Osaka from $356

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

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:05 pm - 10:20 pm
STL
-
KIX
39h 15m2 stops
Multiple Airlines Logo
3:00 pm - 3:29 pm
KIX
-
STL
39h 29m2 stops
$707Multiple Airlines
mar., feb. 3 - jue., feb. 19
Multiple Airlines Logo
4:05 pm - 8:35 pm
STL
-
KIX
37h 30m2 stops
Multiple Airlines Logo
3:00 pm - 3:29 pm
KIX
-
STL
39h 29m2 stops
$747Multiple Airlines
mié., ene. 21 - dom., ene. 25
Delta Logo
11:55 am - 8:45 pm
STL
-
KIX
41h 50m2 stops
Delta Logo
11:55 am - 2:47 pm
KIX
-
STL
41h 52m2 stops
$782Delta
dom., feb. 15 - sáb., feb. 28
United Airlines Logo
4:15 pm - 4:40 pm
STL
-
KIX
33h 25m2 stops
United Airlines Logo
6:35 pm - 2:30 pm
KIX
-
STL
34h 55m2 stops
$792United Airlines
sáb., ene. 17 - mié., ene. 21
Air Canada Logo
9:20 pm - 7:25 pm
ORD
-
KIX
31h 05m2 stops
Air Canada Logo
3:45 pm - 7:45 pm
KIX
-
ORD
19h 00m2 stops
$794Air Canada
sáb., feb. 7 - sáb., feb. 14
United Airlines Logo
5:00 pm - 4:40 pm
STL
-
KIX
32h 40m1 stop
United Airlines Logo
6:35 pm - 2:30 pm
KIX
-
STL
34h 55m2 stops
$801United Airlines
sáb., ene. 17 - mié., ene. 21
United Airlines Logo
5:00 pm - 4:40 pm
STL
-
KIX
32h 40m1 stop
United Airlines Logo
6:35 pm - 3:42 pm
KIX
-
STL
36h 07m1 stop
$805United Airlines
sáb., ene. 17 - mié., ene. 21
Japan Airlines Logo
6:30 am - 6:50 pm
STL
-
KIX
21h 20m1 stop
Japan Airlines Logo
7:00 am - 1:56 pm
KIX
-
STL
21h 56m2 stops
$823Japan Airlines
dom., feb. 15 - sáb., feb. 28
Japan Airlines Logo
6:30 am - 6:50 pm
STL
-
KIX
21h 20m1 stop
Japan Airlines Logo
5:50 pm - 11:48 pm
KIX
-
STL
20h 58m1 stop
$824Japan Airlines
dom., feb. 15 - sáb., feb. 28
Delta Logo
6:00 am - 8:45 pm
MDW
-
KIX
23h 45m2 stops
Delta Logo
9:00 am - 10:22 pm
KIX
-
MDW
28h 22m2 stops
$1,083Delta
mié., feb. 4 - mié., feb. 11

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
Feb 7
ORD9:20 pmChicago O'Hare Intl
31h 05m
2 stops
KIX7:25 pmOsaka Kansai Intl
Feb 14
KIX3:45 pmOsaka Kansai Intl
19h 00m
2 stops
ORD7:45 pmChicago O'Hare Intl
$794
Find similar
Air Canada
Apr 13
STL4:05 pmLambert-St Louis
37h 25m
2 stops
KIX7:30 pmOsaka Kansai Intl
Apr 24
KIX8:30 amOsaka Kansai Intl
44h 54m
2 stops
STL3:24 pmLambert-St Louis
$1,044
Find similar

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
Jan 13
ORD11:30 pmChicago O'Hare Intl
26h 25m
1 stop
KIX4:55 pmOsaka Kansai Intl
Jan 21
KIX6:10 pmOsaka Kansai Intl
40h 25m
1 stop
ORD7:35 pmChicago O'Hare Intl
$969
Find similar
EVA Air
Dec 28
ORD11:30 pmChicago O'Hare Intl
21h 25m
1 stop
KIX11:55 amOsaka Kansai Intl
Dec 30
KIX6:10 pmOsaka Kansai Intl
40h 25m
1 stop
ORD7:35 pmChicago O'Hare Intl
$1,767
Find similar
EVA Air
Dec 28
ORD3:33 pmChicago O'Hare Intl
29h 22m
2 stops
KIX11:55 amOsaka Kansai Intl
Dec 30
KIX6:10 pmOsaka Kansai Intl
40h 25m
1 stop
ORD7:35 pmChicago O'Hare Intl
$2,220
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 diciembre 26, 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

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

mar. 2/3

4:05 pm-10:20 pm

2 stops39h 15m

Osaka Kansai Intl

jue. 2/19

3:00 pm-3:29 pm

2 stops39h 29m

$707

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

mié. 1/21

4:05 pm-8:35 pm

2 stops37h 30m

Osaka Kansai Intl

dom. 1/25

3:00 pm-3:29 pm

2 stops39h 29m

$747

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

dom. 2/15

11:55 am-8:45 pm

2 stops41h 50m

Osaka Kansai Intl

sáb. 2/28

11:55 am-2:47 pm

2 stops41h 52m

$782

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

sáb. 1/17

4:15 pm-4:40 pm

2 stops33h 25m

Osaka Kansai Intl

mié. 1/21

6:35 pm-2:30 pm

2 stops34h 55m

$792

ChicagoOsaka

ORD - KIX

ORDKIX

Chicago O'Hare Intl

sáb. 2/7

9:20 pm-7:25 pm

2 stops31h 05m

Osaka Kansai Intl

sáb. 2/14

3:45 pm-7:45 pm

2 stops19h 00m

$794

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

sáb. 1/17

5:00 pm-4:40 pm

1 stop32h 40m

Osaka Kansai Intl

mié. 1/21

6:35 pm-2:30 pm

2 stops34h 55m

$801

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

sáb. 1/17

5:00 pm-4:40 pm

1 stop32h 40m

Osaka Kansai Intl

mié. 1/21

6:35 pm-3:42 pm

1 stop36h 07m

$805

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

dom. 2/15

6:30 am-6:50 pm

1 stop21h 20m

Osaka Kansai Intl

sáb. 2/28

7:00 am-1:56 pm

2 stops21h 56m

$823

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

dom. 2/15

6:30 am-6:50 pm

1 stop21h 20m

Osaka Kansai Intl

sáb. 2/28

5:50 pm-11:48 pm

1 stop20h 58m

$824

ChicagoOsaka

MDW - KIX

MDWKIX

Chicago Midway

mié. 2/4

6:00 am-8:45 pm

2 stops23h 45m

Osaka Kansai Intl

mié. 2/11

9:00 am-10:22 pm

2 stops28h 22m

$1,083

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 $906. If you aren’t able to travel during the month of October, then book flights to Osaka Kansai Intl Airport from Illinois during September instead. Flights to Osaka Kansai Intl Airport in September, while not as cheap as those in October, still average around $1,030.

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 54% 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

18h 40m

Direct flights

None
The fastest flight from Illinois to Osaka Kansai Intl Airport takes 18h 40m
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
EVA AirPriceFrom $1,097Free CancellationRating
8.4
1,300 reviews
Search EVA Air flights
ANAPriceFrom $1,170Free CancellationRating
8.4
1,045 reviews
Search ANA flights
United AirlinesPriceFrom $1,570Free CancellationRating
7.4
9,116 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
Izumisano
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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