What airlines fly to Osaka?

ANA, EVA Air and Air Canada are the top three most popular airlines that fly to Osaka from Illinois according to our data. ANA is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Osaka. Keep in mind that there are 4 different airlines that fly to Osaka on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Illinois to Osaka?

ANA, Japan Airlines, and American Airlines are the most popular carriers operating from Illinois to Osaka

When did momondo last update prices for flights from Illinois to Osaka?

Prices for flights from Illinois to Osaka refresh daily.

How many operators does momondo search for flights from Illinois to Osaka?

As of December 2025, there are 4 operators available to choose from for flights from Illinois to Osaka.

How old do you have to be to fly from Illinois to Osaka?

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.

What documentation or ID do you need to fly to Osaka?

The travel and health documents required for your trip to Osaka 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. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$354 Cheap Flights from Illinois to Osaka in 2025/26

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Find the cheapest flights from Illinois to Osaka

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:05 pm - 10:20 pm

STL

KIX

39h 15m2 stops

3:00 pm - 3:29 pm

KIX

STL

39h 29m2 stops

$707Multiple Airlines

Tue, Feb 3 - Thu, Feb 19

1:15 pm - 3:10 pm

STL

ITM

34h 55m2 stops

7:05 am - 12:21 pm

ITM

STL

20h 16m2 stops

$730ANA

Tue, Feb 3 - Thu, Feb 19

4:05 pm - 10:20 pm

STL

KIX

39h 15m2 stops

3:45 pm - 3:29 pm

KIX

STL

38h 44m2 stops

$740Multiple Airlines

Tue, Jan 13 - Tue, Jan 20

7:15 am - 7:55 pm

STL

ITM

21h 40m2 stops

2:40 pm - 7:29 pm

ITM

STL

19h 49m2 stops

$756American Airlines

Tue, Jan 13 - Tue, Jan 20

4:42 pm - 4:40 pm

STL

KIX

32h 58m2 stops

6:35 pm - 2:30 pm

KIX

STL

34h 55m2 stops

$792United Airlines

Sat, Jan 17 - Wed, Jan 21

6:40 pm - 4:40 pm

STL

KIX

31h 00m2 stops

6:35 pm - 12:29 pm

KIX

STL

32h 54m2 stops

$793United Airlines

Tue, Jan 13 - Tue, Jan 20

6:30 am - 6:50 pm

STL

KIX

21h 20m1 stop

5:50 pm - 11:48 pm

KIX

STL

20h 58m1 stop

$824Japan Airlines

Sun, Feb 15 - Sat, Feb 28

4:05 pm - 7:10 pm

STL

ITM

36h 05m2 stops

4:00 pm - 3:29 pm

ITM

STL

38h 29m2 stops

$837Air Canada

Sun, Feb 15 - Thu, Feb 19

8:00 am - 8:20 pm

ORD

ITM

21h 20m2 stops

2:05 pm - 2:41 pm

ITM

ORD

39h 36m2 stops

$890Air Canada

Wed, Feb 4 - Wed, Feb 18

7:15 am - 7:20 pm

STL

ITM

21h 05m2 stops

2:40 pm - 10:46 pm

ITM

STL

23h 06m2 stops

$901Japan Airlines

Thu, Jan 8 - Fri, Jan 16

United Airlines flights from Illinois to Osaka

Our best United Airlines deals on Illinois to Osaka flight tickets

United Airlines

Jan 17

STL4:42 pmLambert-St Louis

32h 58m

2 stops

KIX4:40 pmOsaka Kansai Intl

Jan 21

KIX6:35 pmOsaka Kansai Intl

34h 55m

2 stops

STL2:30 pmLambert-St Louis

$792

Find similar

United Airlines

Jan 13

STL6:40 pmLambert-St Louis

31h 00m

2 stops

KIX4:40 pmOsaka Kansai Intl

Jan 20

KIX6:35 pmOsaka Kansai Intl

32h 54m

2 stops

STL12:29 pmLambert-St Louis

$793

Find similar

United Airlines

Jan 13

STL5:00 pmLambert-St Louis

32h 40m

1 stop

KIX4:40 pmOsaka Kansai Intl

Jan 20

KIX8:20 amOsaka Kansai Intl

26h 07m

2 stops

STL7:27 pmLambert-St Louis

$799

Find similar

Cathay Pacific flights from Illinois to Osaka

Our best Cathay Pacific deals on Illinois to Osaka flight tickets

Cathay Pacific

Jan 22

ORD2:35 pmChicago O'Hare Intl

24h 45m

1 stop

KIX6:20 amOsaka Kansai Intl

Feb 4

KIX7:05 pmOsaka Kansai Intl

32h 50m

1 stop

ORD12:55 pmChicago O'Hare Intl

$860

Find similar

Cathay Pacific

Apr 20

ORD4:00 pmChicago O'Hare Intl

39h 15m

1 stop

KIX9:15 pmOsaka Kansai Intl

May 12

KIX5:45 pmOsaka Kansai Intl

34h 40m

1 stop

ORD2:25 pmChicago O'Hare Intl

$870

Find similar

Cathay Pacific

Apr 20

ORD4:00 pmChicago O'Hare Intl

24h 40m

1 stop

KIX6:40 amOsaka Kansai Intl

May 12

KIX4:20 pmOsaka Kansai Intl

36h 05m

2 stops

ORD2:25 pmChicago O'Hare Intl

$886

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Tue 2/3

4:05 pm-10:20 pm

2 stops39h 15m

Osaka Kansai Intl

Thu 2/19

3:00 pm-3:29 pm

2 stops39h 29m

$707

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Tue 2/3

1:15 pm-3:10 pm

2 stops34h 55m

Osaka Itami

Thu 2/19

7:05 am-12:21 pm

2 stops20h 16m

$730

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Tue 1/13

4:05 pm-10:20 pm

2 stops39h 15m

Osaka Kansai Intl

Tue 1/20

3:45 pm-3:29 pm

2 stops38h 44m

$740

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Tue 1/13

7:15 am-7:55 pm

2 stops21h 40m

Osaka Itami

Tue 1/20

2:40 pm-7:29 pm

2 stops19h 49m

$756

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Sat 1/17

4:42 pm-4:40 pm

2 stops32h 58m

Osaka Kansai Intl

Wed 1/21

6:35 pm-2:30 pm

2 stops34h 55m

$792

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Tue 1/13

6:40 pm-4:40 pm

2 stops31h 00m

Osaka Kansai Intl

Tue 1/20

6:35 pm-12:29 pm

2 stops32h 54m

$793

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Sun 2/15

6:30 am-6:50 pm

1 stop21h 20m

Osaka Kansai Intl

Sat 2/28

5:50 pm-11:48 pm

1 stop20h 58m

$824

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Sun 2/15

4:05 pm-7:10 pm

2 stops36h 05m

Osaka Itami

Thu 2/19

4:00 pm-3:29 pm

2 stops38h 29m

$837

ChicagoOsaka

ORD - ITM

ORDITM

Chicago O'Hare Intl

Wed 2/4

8:00 am-8:20 pm

2 stops21h 20m

Osaka Itami

Wed 2/18

2:05 pm-2:41 pm

2 stops39h 36m

$890

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Thu 1/8

7:15 am-7:20 pm

2 stops21h 05m

Osaka Itami

Fri 1/16

2:40 pm-10:46 pm

2 stops23h 06m

$901

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Illinois to Osaka

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

Prices

Airlines

What is the cheapest month to fly to Osaka?

In general, May is the cheapest month to fly from Illinois to Osaka. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $759. If you are unable to visit Osaka during the month of May, then departing from Illinois during the month September is also very affordable. Most momondo users find prices during this month for around $1,047.

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

According to our data, Tuesday is the cheapest day to fly to Osaka from Illinois. The lowest ticket price found for a Tuesday departure recently was $1,283. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Illinois to Osaka for around $1,701.

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

Our data shows that the cheapest Illinois to Osaka flights are usually those with departure times in the afternoon. Our users have found flights to Osaka in the afternoon for as low as $1,034. Flights to Osaka are more costly at noon, with an average ticket price of $1,620. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on Illinois to Osaka flights?

You could potentially save up to 34% on your flight if you consider stops on a Illinois to Osaka flight.

Cheap Illinois to Osaka flight deals and tips

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

Fastest flight time	17h 20m
Direct flights	None

The fastest flight from Illinois to Osaka takes 17h 20m

There are no direct flights from Illinois to Osaka. There are no popular flight routes from Illinois to Osaka.

Search flight deals

When did momondo last update prices for flights from Illinois to Osaka?
Prices for flights from Illinois to Osaka refresh daily.
How many operators does momondo search for flights from Illinois to Osaka?
As of December 2025, there are 4 operators available to choose from for flights from Illinois to Osaka.
How old do you have to be to fly from Illinois to Osaka?
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.
What documentation or ID do you need to fly to Osaka?
The travel and health documents required for your trip to Osaka 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. 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

Compare and see reviews for airlines that fly from Illinois to Osaka with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom $1,025	Free Cancellation	Rating 7.1 10,534 reviews	Search Air Canada flights
EVA Air	PriceFrom $1,097	Free Cancellation	Rating 8.4 1,295 reviews	Search EVA Air flights
ANA	PriceFrom $1,173	Free Cancellation	Rating 8.4 1,030 reviews	Search ANA flights
United Airlines	PriceFrom $1,570	Free Cancellation	Rating 7.4 9,091 reviews	Search United Airlines flights

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Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Illinois to Osaka. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Osaka from Illinois on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Osaka from Illinois.

I’m not ready to book a flight from Illinois to Osaka right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Illinois to Osaka flights. All you need is a valid email address and we will do the rest; it is that quick and easy.