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$388+ 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 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — FUK
Jun 19 — Jun 261
Fri 6/19
Fri 6/26
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 May 20, 2026.

This KAYAK deal was found by Cheapflights users on 5/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/154:00 pm
ORD
-
KIX
1 stop39h 15m
Cathay Pacific
Tue 9/299:45 am
KIX
-
ORD
1 stop42h 10m
Cathay Pacific
Deal found 5/20$1,065
This SmartFares deal was found by Cheapflights users on 5/18. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:00 am
STL
-
NRT
1 stop20h 00m
Multiple Airlines
Fri 9/256:00 pm
NRT
-
STL
1 stop19h 59m
Multiple Airlines
Deal found 5/18$1,072
This United Airlines deal was found by Cheapflights users on 5/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/305:30 pm
STL
-
HND
1 stop37h 45m
United Airlines
Wed 9/23:45 pm
HND
-
STL
1 stop17h 26m
United Airlines
Deal found 5/19$1,077
This SmartFares deal was found by Cheapflights users on 5/20. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:00 am
STL
-
NRT
1 stop20h 00m
Multiple Airlines
Tue 9/226:00 pm
NRT
-
STL
1 stop34h 21m
Multiple Airlines
Deal found 5/20$1,079
This FlightHub deal was found by Cheapflights users on 5/19. 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.
Tue 8/118:50 am
STL
-
HND
1 stop16h 35m
ANA
Tue 11/36:20 pm
HND
-
STL
1 stop16h 05m
ANA
Deal found 5/19$1,080
This KAYAK deal was found by Cheapflights users on 5/18. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/274:00 pm
ORD
-
KIX
1 stop33h 10m
Cathay Pacific
Mon 9/74:15 pm
KIX
-
ORD
2 stops36h 05m
Cathay Pacific
Deal found 5/18$1,081
This United Airlines deal was found by Cheapflights users on 5/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/105:10 am
STL
-
HND
2 stops23h 50m
United Airlines
Thu 11/54:25 pm
HND
-
STL
1 stop16h 28m
United Airlines
Deal found 5/19$1,083
This FlightHub deal was found by Cheapflights users on 5/19. 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 8/196:15 am
STL
-
HND
1 stop19h 10m
ANA
Wed 8/265:15 pm
HND
-
STL
1 stop32h 47m
ANA
Deal found 5/19$1,086
This United Airlines deal was found by Cheapflights users on 5/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/105:10 am
STL
-
HND
2 stops23h 50m
United Airlines
Tue 11/37:40 pm
HND
-
STL
2 stops19h 54m
United Airlines
Deal found 5/19$1,087
This American Airlines deal was found by Cheapflights users on 5/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/128:36 am
STL
-
NRT
1 stop16h 24m
American Airlines
Wed 11/45:30 pm
NRT
-
STL
1 stop17h 00m
American Airlines
Deal found 5/19$1,088
This United Airlines deal was found by Cheapflights users on 5/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:42 am
STL
-
NRT
1 stop16h 43m
United Airlines
Fri 8/285:05 pm
NRT
-
STL
1 stop15h 34m
United Airlines
Deal found 5/18$1,089
This FlightHub deal was found by Cheapflights users on 5/19. 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 8/2212:59 pm
STL
-
HND
1 stop36h 26m
ANA
Tue 9/15:15 pm
HND
-
STL
1 stop32h 47m
ANA
Deal found 5/19$1,091

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 May 20, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$1,065
(KAYAK)

One-way from

$388
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$1,336

Good round-trip deal

$1,402 or less

Good one-way deal

$655 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. 1% potential increase in price ($14 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 20, 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 - HND

STLHND

Lambert-St Louis

Mon 8/10

6:20 am-1:05 pm

1 stop16h 45m

Tokyo Haneda

Sat 11/7

5:15 pm-4:54 pm

1 stop14h 39m

$1,189

ChicagoKobe

ORD - UKB

ORDUKB

Chicago O'Hare Intl

Sun 8/16

12:30 am-6:00 pm

1 stop27h 30m

Kobe

Mon 8/31

11:00 am-9:10 pm

1 stop24h 10m

$1,342

ChicagoOsaka

ORD - KIX

ORDKIX

Chicago O'Hare Intl

Mon 8/17

6:42 pm-12:00 pm

2 stops27h 18m

Osaka Kansai Intl

Mon 8/31

7:05 pm-6:22 am

2 stops25h 17m

$1,351

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Tue 8/4

5:10 am-4:30 pm

2 stops21h 20m

Tokyo Narita

Tue 8/11

5:25 pm-11:38 pm

1 stop20h 13m

$1,364

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Sun 7/19

5:33 pm-2:10 pm

2 stops30h 37m

Tokyo Narita

Thu 7/30

5:05 pm-10:07 am

2 stops31h 02m

$1,404

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Wed 7/29

5:10 am-2:10 pm

2 stops19h 00m

Tokyo Narita

Wed 8/12

5:05 pm-12:40 pm

2 stops33h 35m

$1,404

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sun 8/16

6:54 pm-1:55 pm

2 stops29h 01m

Tokyo Haneda

Sat 9/5

10:05 am-11:42 pm

2 stops27h 37m

$1,409

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Sun 8/16

7:56 pm-12:55 pm

2 stops26h 59m

Tokyo Narita

Sat 9/5

2:10 pm-2:04 pm

2 stops37h 54m

$1,438

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Sun 8/16

6:54 pm-2:30 pm

2 stops29h 36m

Tokyo Narita

Sat 9/5

2:50 pm-10:25 pm

2 stops45h 35m

$1,460

ChicagoOsaka

MDW - KIX

MDWKIX

Chicago Midway

Mon 8/10

8:55 pm-12:50 pm

2 stops25h 55m

Osaka Kansai Intl

Tue 8/18

7:05 pm-5:50 am

2 stops24h 45m

$1,482

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/19

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 $108). Flying from Illinois to Japan in July is currently the most expensive (average of $2,010). 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 May 20, 2026.

One of the essential ways to save on airfare from Illinois to Japan is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 20% on airfare.

How far ahead should I book a flight from Illinois to Japan?

Booking 24 days in advance of your planned departure date is, on average, the best time to get cheap flights from Illinois to Japan. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 May 16, 2026.

Travelers seeking maximum savings on their Illinois to Japan flight should consider departing on Tuesday 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 16h 45m. Fly via Delta, EVA Air, or United 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 $468 on Air Canada. Other airlines that offer cheap prices include ANA from $486 and Korean Air from $509 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 $108). Flying from Illinois to Japan in July is currently the most expensive (average of $2,010). 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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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 May 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$613Average$1,166FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$696Average$921FlexibilityNo cancel feeOn-time72%
Air CanadaCheapest$861Average$1,230FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$893Average$1,453FlexibilityNo cancel feeOn-time69%
ANACheapest$915Average$1,546FlexibilityNo cancel feeOn-time80%
Japan AirlinesCheapest$940Average$1,474FlexibilityNo cancel feeOn-time79%
EVA AirCheapest$978Average$1,303FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$1,001Average$1,443FlexibilityNo cancel feeOn-time71%

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