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$414+ Cheap flights from Illinois to Japan

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — FUK
May 1 — May 81
Fri 5/1
Fri 5/8
1 adult, Economy
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Cheap flight deals from Illinois to Japan

Cheapest flights from Illinois to Japan
Explore the most affordable flight options available from Illinois to Japan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 1, 2026.

This Air Canada deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/183:40 pm
ORD
-
KIX
1 stop34h 45m
Air Canada
Mon 5/46:00 pm
KIX
-
ORD
1 stop34h 45m
Air Canada
Deal found 3/29$953
This Air Canada deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/153:40 pm
ORD
-
KIX
1 stop34h 45m
Air Canada
Tue 9/296:00 pm
KIX
-
ORD
1 stop34h 48m
Air Canada
Deal found 3/31$957
This Air Canada deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:40 pm
ORD
-
KIX
1 stop29h 45m
Air Canada
Mon 10/267:25 pm
KIX
-
ORD
1 stop33h 16m
Air Canada
Deal found 3/31$965
This Justfly.com deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/222:40 pm
STL
-
NRT
2 stops34h 15m
Air Canada
Wed 10/75:40 pm
NRT
-
STL
2 stops34h 20m
Air Canada
Deal found 3/29$967
This FlightHub deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/308:55 am
STL
-
NRT
2 stops40h 45m
Air Canada
Wed 10/145:25 pm
NRT
-
STL
1 stop34h 35m
Air Canada
Deal found 3/27$968
This Air Canada deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1412:10 pm
STL
-
NRT
1 stop37h 30m
Air Canada
Mon 9/285:25 pm
NRT
-
STL
1 stop34h 35m
Air Canada
Deal found 3/27$970
This Air Canada deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/285:00 am
ORD
-
KIX
2 stops22h 40m
Air Canada
Mon 11/97:25 pm
KIX
-
ORD
1 stop34h 16m
Air Canada
Deal found 3/31$971
This Justfly.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/212:40 pm
STL
-
NRT
2 stops35h 00m
Air Canada
Tue 10/65:40 pm
NRT
-
STL
2 stops34h 20m
Air Canada
Deal found 3/27$971
This Air Canada deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/28:40 pm
ORD
-
KIX
1 stop29h 45m
Air Canada
Wed 9/166:00 pm
KIX
-
ORD
1 stop15h 48m
Air Canada
Deal found 3/29$973
This Air Canada deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/202:40 pm
STL
-
NRT
2 stops34h 15m
Air Canada
Wed 10/286:45 pm
NRT
-
STL
2 stops27h 52m
Air Canada
Deal found 3/27$974
This Air Canada deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/286:49 pm
STL
-
NRT
2 stops30h 51m
Air Canada
Tue 10/135:40 pm
NRT
-
STL
2 stops28h 57m
Air Canada
Deal found 3/27$975
This FlightHub deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/108:00 pm
ORD
-
KIX
2 stops30h 25m
Air Canada
Tue 10/206:00 pm
KIX
-
ORD
2 stops19h 57m
Air Canada
Deal found 3/31$977

Find flight deals from Illinois to Japan

Keep the following information in mind while searching for Illinois to Japan flight deals. Data was last updated April 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$953
(Air Canada)

One-way from

$436
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,215

Good round-trip deal

$1,104 or less

Good one-way deal

$567 or less
Provider with most accurate pricing for Chicago (CHI)-Tokyo (TYO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Tokyo (TYO) flights.
Search Deals
From Illinois to Japan
Search Deals
One-way flight from Illinois to Japan
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($217 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Illinois to Japan.
Search Deals
Price to beat on a one-way flight from Illinois to Japan.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Japan 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, Cheapflights users made 2,558,603 searches. Data last updated April 1, 2026.
Use the filters below to find and compare flights from Illinois to Japan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Tue 8/25

6:00 am-4:00 pm

1 stop20h 00m

Tokyo Narita

Fri 8/28

6:00 pm-11:58 pm

1 stop19h 58m

$1,090

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sun 8/30

5:10 am-7:00 pm

2 stops23h 50m

Tokyo Haneda

Thu 9/3

3:50 pm-6:24 pm

1 stop16h 34m

$1,185

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Tue 8/25

5:00 am-2:30 pm

2 stops19h 30m

Tokyo Narita

Fri 8/28

4:30 pm-9:22 pm

2 stops18h 52m

$1,195

ChicagoTokyo

MDW - HND

MDWHND

Chicago Midway

Wed 4/22

6:00 am-4:15 pm

2 stops20h 15m

Tokyo Haneda

Thu 5/14

4:20 pm-5:56 pm

1 stop15h 36m

$1,217

ChicagoOsaka

ORD - ITM

ORDITM

Chicago O'Hare Intl

Sun 4/26

6:00 am-5:05 pm

2 stops21h 05m

Osaka Itami

Fri 5/15

12:55 pm-9:41 pm

2 stops22h 46m

$1,221

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sat 8/22

4:40 pm-7:00 pm

2 stops36h 20m

Tokyo Haneda

Sat 9/5

5:15 pm-9:22 pm

1 stop18h 07m

$1,239

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Mon 9/7

6:00 am-4:15 pm

2 stops20h 15m

Tokyo Haneda

Mon 9/14

4:20 pm-8:31 pm

2 stops18h 11m

$1,245
Quickest round-trip

ChicagoTokyo

ORD - NRT

ORDNRT

Chicago O'Hare Intl

Mon 4/20

11:50 am-3:10 pm

Nonstop13h 20m

Tokyo Narita

Mon 5/11

5:00 pm-2:55 pm

Nonstop11h 55m

$1,248

ChicagoTokyo

MDW - HND

MDWHND

Chicago Midway

Sun 4/26

6:00 am-2:20 pm

1 stop18h 20m

Tokyo Haneda

Sun 5/10

4:20 pm-5:56 pm

1 stop15h 36m

$1,262

ChicagoTokyo

MDW - HND

MDWHND

Chicago Midway

Thu 4/23

6:00 am-4:15 pm

2 stops20h 15m

Tokyo Haneda

Fri 5/15

4:20 pm-5:56 pm

1 stop15h 36m

$1,267

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Illinois to Japan

Have a flexible travel schedule? Discover the best time to fly to Japan from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Japan

What is the cheapest month to book a flight from Illinois to Japan?

Currently, August is the cheapest month in which you can book a flight from Illinois to Japan (average of $610). Flying from Illinois to Japan in June is currently the most expensive (average of $1,112). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to JP?

Find hourly flight availability from Illinois to Japan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 1, 2026.

One of the essential ways to save on airfare from Illinois to Japan is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 48% on airfare.

What is the cheapest day to fly from Illinois to Japan?

Use this chart to determine the cheapest time to fly round-trip from Illinois to Japan. Price data was last updated on March 28, 2026.

Travelers seeking maximum savings on their Illinois to Japan flight should consider departing on Monday afternoons when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Japan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Illinois to Japan?

    There are many flights that can get you from Illinois to Japan in 23h 50m. Fly via United Airlines, Delta, or Japan Airlines to get the fastest option. Illinois and Japan are separated by a distance of 6383 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Illinois to Japan one-way?

    One-way options have recently been found by users for as low as $155 on United Airlines. Other airlines that offer cheap prices include WestJet from $395 and Cathay Pacific from $422 one-way.

  • Can I find deals for flights from Illinois to Japan that include hotel bookings?

    Yes. In addition to deals on Illinois to Japan flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Japan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Japan.

  • Can I find deals for business class flights from Illinois to Japan?

    Yes. Cheapflights offers flight deals from Illinois to Japan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Japan?

    Currently, August is the cheapest month in which you can book a flight from Illinois to Japan (average of $610). Flying from Illinois to Japan in June is currently the most expensive (average of $1,112). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Illinois to Japan

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Illinois to Japan

Discover the top 8 airlines that operate flights from Illinois to Japan. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$613Average$1,187FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$709Average$926FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$781Average$1,368FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$861Average$1,230FlexibilityNo cancel feeOn-time67%
ANACheapest$915Average$1,437FlexibilityNo cancel feeOn-time80%
Japan AirlinesCheapest$939Average$1,447FlexibilityNo cancel feeOn-time79%
EVA AirCheapest$978Average$1,277FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$1,001Average$1,389FlexibilityNo cancel feeOn-time71%

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