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$379+ 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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — FUK
Aug 11 — Aug 181
Tue 8/11
Tue 8/18
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 July 12, 2026.

This FlightHub deal was found by Cheapflights users on 7/10. 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 11/1110:45 pm
ORD
-
KIX
1 stop29h 25m
Philippine Airlines
Wed 11/1810:05 am
KIX
-
ORD
1 stop21h 50m
Philippine Airlines
Deal found 7/10$882
This Travelocity deal was found by Cheapflights users on 7/8. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/95:30 pm
STL
-
NRT
2 stops31h 25m
Air Canada
Wed 9/165:50 pm
NRT
-
STL
2 stops32h 07m
Air Canada
Deal found 7/8$908
This Air Canada deal was found by Cheapflights users on 7/8. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/712:10 pm
STL
-
NRT
1 stop37h 15m
Air Canada
Mon 9/145:50 pm
NRT
-
STL
1 stop38h 51m
Air Canada
Deal found 7/8$911
This Air Canada deal was found by Cheapflights users on 7/8. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/712:10 pm
STL
-
NRT
1 stop37h 15m
Air Canada
Mon 9/285:50 pm
NRT
-
STL
1 stop16h 30m
Air Canada
Deal found 7/8$916
This FlightHub deal was found by Cheapflights users on 7/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/14:05 pm
STL
-
NRT
2 stops57h 25m
Air Canada
Thu 11/126:45 pm
NRT
-
STL
2 stops34h 45m
Air Canada
Deal found 7/8$924
This Air Canada deal was found by Cheapflights users on 7/7. 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.
Sun 12/64:05 pm
STL
-
NRT
2 stops33h 25m
Air Canada
Mon 12/146:45 pm
NRT
-
STL
2 stops35h 41m
Air Canada
Deal found 7/7$930
This FlightHub deal was found by Cheapflights users on 7/7. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/54:05 pm
STL
-
NRT
2 stops33h 25m
Air Canada
Mon 12/146:15 pm
NRT
-
STL
2 stops36h 11m
Air Canada
Deal found 7/7$937
This FlightHub deal was found by Cheapflights users on 7/7. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/74:05 pm
STL
-
NRT
2 stops33h 25m
Air Canada
Mon 12/146:15 pm
NRT
-
STL
2 stops36h 11m
Air Canada
Deal found 7/7$940
This Air Canada deal was found by Cheapflights users on 7/7. 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.
Sat 12/54:05 pm
STL
-
NRT
2 stops33h 25m
Air Canada
Fri 12/116:15 pm
NRT
-
STL
2 stops36h 11m
Air Canada
Deal found 7/7$942
This Air Canada deal was found by Cheapflights users on 7/7. 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.
Tue 12/84:05 pm
STL
-
NRT
2 stops33h 25m
Air Canada
Mon 12/146:15 pm
NRT
-
STL
2 stops36h 11m
Air Canada
Deal found 7/7$945
This Air Canada deal was found by Cheapflights users on 7/7. 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.
Sun 12/67:04 pm
STL
-
NRT
2 stops30h 26m
Air Canada
Fri 12/116:15 pm
NRT
-
STL
2 stops36h 11m
Air Canada
Deal found 7/7$946
This Air Canada deal was found by Cheapflights users on 7/8. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/178:55 am
STL
-
NRT
1 stop17h 15m
Air Canada
Thu 10/15:50 pm
NRT
-
STL
1 stop38h 51m
Air Canada
Deal found 7/8$947

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 July 12, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$908
(Travelocity)

One-way from

$379
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$1,574

Good round-trip deal

$1,148 or less

Good one-way deal

$604 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 ($8 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 12, 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

Sat 8/22

3:40 pm-4:25 pm

1 stop34h 45m

Osaka Kansai Intl

Sat 8/29

6:00 pm-2:36 pm

1 stop34h 36m

$1,023

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Tue 11/10

6:00 am-2:05 pm

1 stop17h 05m

Tokyo Haneda

Wed 11/18

5:35 pm-11:39 pm

2 stops21h 04m

$1,025

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Mon 11/9

6:15 am-3:30 pm

1 stop18h 15m

Tokyo Narita

Thu 11/19

5:40 pm-4:43 pm

1 stop14h 03m

$1,099

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sat 8/29

6:09 pm-1:05 pm

2 stops28h 56m

Tokyo Haneda

Tue 11/24

5:15 pm-8:12 am

2 stops29h 57m

$1,120

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sun 9/6

6:00 am-4:15 pm

2 stops20h 15m

Tokyo Haneda

Sun 9/13

4:05 pm-11:42 pm

2 stops21h 37m

$1,125

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Sat 12/5

7:04 pm-3:00 pm

1 stop28h 56m

Tokyo Narita

Mon 12/14

5:40 pm-4:26 pm

1 stop13h 46m

$1,159

ChicagoOsaka

ORD - ITM

ORDITM

Chicago O'Hare Intl

Sun 8/23

11:50 am-6:55 pm

1 stop17h 05m

Osaka Itami

Sun 8/30

2:00 pm-5:59 am

2 stops29h 59m

$1,178

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Sun 8/2

5:10 am-2:30 pm

1 stop19h 20m

Tokyo Narita

Thu 8/6

8:10 pm-5:42 pm

2 stops35h 32m

$1,215

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Tue 8/18

7:00 am-4:15 pm

2 stops19h 15m

Tokyo Haneda

Wed 9/2

6:25 pm-8:42 pm

1 stop16h 17m

$1,215

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Wed 8/26

6:00 am-2:30 pm

2 stops18h 30m

Tokyo Narita

Wed 9/2

5:05 pm-8:46 pm

2 stops17h 41m

$1,215

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/10

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, January is the cheapest month in which you can book a flight from Illinois to Japan (average of $162). Flying from Illinois to Japan in December is currently the most expensive (average of $2,027). 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 July 12, 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 12 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 July 4, 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 at noon 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 17h 05m. Fly via Air Canada, Delta, 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 $395 on WestJet. Other airlines that offer cheap prices include Air Canada from $468 and ANA from $486 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, January is the cheapest month in which you can book a flight from Illinois to Japan (average of $162). Flying from Illinois to Japan in December is currently the most expensive (average of $2,027). 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 July 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$355Average$1,116FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$696Average$911FlexibilityNo cancel feeOn-time72%
Air CanadaCheapest$861Average$1,206FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$893Average$1,454FlexibilityNo cancel feeOn-time69%
Japan AirlinesCheapest$956Average$1,505FlexibilityNo cancel feeOn-time79%
ANACheapest$962Average$1,604FlexibilityNo cancel feeOn-time80%
American AirlinesCheapest$1,001Average$1,389FlexibilityNo cancel feeOn-time71%
EVA AirCheapest$1,008Average$1,177FlexibilityNo cancel feeOn-time74%

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