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$405+ 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 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — FUK
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
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 March 10, 2026.

This Air Canada deal was found by Cheapflights users on 3/5. 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 9/2812:10 pm
STL
-
NRT
1 stop37h 30m
Air Canada
Tue 10/135:25 pm
NRT
-
STL
1 stop34h 35m
Air Canada
Deal found 3/5$855
This Air Canada deal was found by Cheapflights users on 3/5. 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 10/284:15 pm
STL
-
NRT
1 stop34h 15m
Air Canada
Wed 11/116:45 pm
NRT
-
STL
1 stop35h 45m
Air Canada
Deal found 3/5$860
This Air Canada deal was found by Cheapflights users on 3/5. 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 9/228:55 am
STL
-
NRT
1 stop16h 55m
Air Canada
Wed 10/75:40 pm
NRT
-
STL
2 stops34h 20m
Air Canada
Deal found 3/5$863
This Air Canada deal was found by Cheapflights users on 3/6. 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 4/286:55 pm
STL
-
NRT
2 stops30h 30m
Air Canada
Wed 5/135:35 pm
NRT
-
STL
1 stop16h 50m
Air Canada
Deal found 3/6$864
This Air Canada deal was found by Cheapflights users on 3/7. 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 4/274:05 pm
STL
-
NRT
2 stops33h 20m
Air Canada
Tue 5/55:35 pm
NRT
-
STL
2 stops32h 31m
Air Canada
Deal found 3/7$866
This Air Canada deal was found by Cheapflights users on 3/5. 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 9/15:00 am
STL
-
NRT
2 stops20h 25m
Air Canada
Tue 9/155:25 pm
NRT
-
STL
1 stop34h 35m
Air Canada
Deal found 3/5$868
This Air Canada deal was found by Cheapflights users on 3/6. 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 9/155:00 am
STL
-
NRT
2 stops20h 40m
Air Canada
Wed 9/235:25 pm
NRT
-
STL
1 stop16h 35m
Air Canada
Deal found 3/6$869
This Air Canada deal was found by Cheapflights users on 3/5. 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 10/1212:10 pm
STL
-
NRT
1 stop37h 30m
Air Canada
Thu 10/225:40 pm
NRT
-
STL
2 stops28h 57m
Air Canada
Deal found 3/5$870
This Kiwi.com deal was found by Cheapflights users on 3/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:45 pm
ORD
-
KIX
1 stop25h 30m
Multiple Airlines
Thu 5/147:35 am
KIX
-
ORD
2 stops29h 52m
Multiple Airlines
Deal found 3/8$887
This Kiwi.com deal was found by Cheapflights users on 3/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2711:50 am
ORD
-
KIX
1 stop19h 10m
Multiple Airlines
Thu 5/147:35 am
KIX
-
ORD
2 stops29h 52m
Multiple Airlines
Deal found 3/8$893
This Kiwi.com deal was found by Cheapflights users on 3/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:45 pm
ORD
-
KIX
1 stop25h 30m
Multiple Airlines
Fri 5/157:35 am
KIX
-
ORD
2 stops29h 52m
Multiple Airlines
Deal found 3/8$896
This Kiwi.com deal was found by Cheapflights users on 3/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/275:45 pm
ORD
-
KIX
1 stop25h 30m
Multiple Airlines
Fri 5/157:35 am
KIX
-
ORD
2 stops29h 52m
Multiple Airlines
Deal found 3/8$903

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 March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$855
(Air Canada)

One-way from

$405
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$1,282

Good round-trip deal

$1,030 or less

Good one-way deal

$492 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. 0% potential increase in price ($13 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 March 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 March 10, 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

ChicagoOsaka

ORD - KIX

ORDKIX

Chicago O'Hare Intl

Mon 4/20

12:20 pm-10:40 pm

1 stop20h 20m

Osaka Kansai Intl

Mon 5/11

2:15 am-1:47 pm

2 stops25h 32m

$946

ChicagoOsaka

MDW - KIX

MDWKIX

Chicago Midway

Mon 4/20

6:00 am-10:40 pm

2 stops26h 40m

Osaka Kansai Intl

Mon 5/11

2:15 am-4:12 pm

2 stops27h 57m

$950

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Tue 4/28

4:30 pm-5:00 am

2 stops22h 30m

Tokyo Haneda

Fri 5/8

10:55 pm-5:47 am

1 stop20h 52m

$994

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Sat 4/25

7:00 am-4:00 pm

1 stop19h 00m

Tokyo Narita

Thu 5/14

6:00 pm-11:54 pm

1 stop19h 54m

$1,041

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sat 8/15

7:05 pm-1:05 pm

2 stops28h 00m

Tokyo Haneda

Tue 8/18

4:20 pm-12:36 am

2 stops22h 16m

$1,045

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sat 8/22

5:30 pm-2:15 pm

1 stop30h 45m

Tokyo Haneda

Sat 9/5

4:35 pm-8:50 pm

1 stop18h 15m

$1,046

ChicagoTokyo

ORD - HND

ORDHND

Chicago O'Hare Intl

Mon 4/13

6:00 am-1:35 pm

1 stop17h 35m

Tokyo Haneda

Mon 4/27

5:15 pm-3:15 pm

Nonstop12h 00m

$1,051

ChicagoTokyo

MDW - HND

MDWHND

Chicago Midway

Thu 4/23

9:27 am-4:15 pm

1 stop16h 48m

Tokyo Haneda

Wed 5/20

6:25 pm-8:43 am

1 stop28h 18m

$1,069

ChicagoTokyo

ORD - NRT

ORDNRT

Chicago O'Hare Intl

Tue 9/1

4:00 pm-5:15 pm

2 stops59h 15m

Tokyo Narita

Sat 9/19

3:45 pm-1:55 pm

2 stops60h 10m

$1,087

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sat 8/22

9:00 am-9:00 pm

2 stops22h 00m

Tokyo Haneda

Sat 9/5

3:50 pm-11:50 pm

2 stops22h 00m

$1,094

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/8

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 $1,111). 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 March 10, 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 49% 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 February 21, 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 20h 20m. Fly via Delta, United Airlines, or Cathay Pacific to get the fastest option. Illinois and Japan are separated by a distance of 6488 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 $70 on Southwest. Other airlines that offer cheap prices include Frontier from $95 and American Airlines from $125 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 $1,111). 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

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Alternative routes for Illinois to Japan

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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 March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$613Average$1,187FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$709Average$926FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$781Average$1,380FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$861Average$1,230FlexibilityNo cancel feeOn-time67%
ANACheapest$915Average$1,445FlexibilityNo cancel feeOn-time80%
Japan AirlinesCheapest$939Average$1,472FlexibilityNo cancel feeOn-time79%
American AirlinesCheapest$1,001Average$1,448FlexibilityNo cancel feeOn-time71%
EVA AirCheapest$1,008Average$1,339FlexibilityNo cancel feeOn-time74%

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