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$442+ 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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — FUK
Jun 3 — Jun 101
Wed 6/3
Wed 6/10
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 4, 2026.

This oojo deal was found by Cheapflights users on 4/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/224:15 pm
ORD
-
KIX
1 stop24h 25m
Cathay Pacific
Wed 10/149:05 am
KIX
-
ORD
1 stop42h 50m
Cathay Pacific
Deal found 4/29$966
This FlightHub deal was found by Cheapflights users on 5/2. 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 10/283:35 pm
ORD
-
KIX
1 stop39h 30m
Cathay Pacific
Mon 11/910:00 am
KIX
-
ORD
1 stop41h 55m
Cathay Pacific
Deal found 5/2$971
This KAYAK deal was found by Cheapflights users on 5/4. 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 11/192:35 pm
ORD
-
KIX
2 stops33h 20m
Cathay Pacific
Sun 11/299:25 am
KIX
-
ORD
1 stop42h 30m
Cathay Pacific
Deal found 5/4$985
This BusinessClass deal was found by Cheapflights users on 5/3. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/34:00 pm
ORD
-
KIX
1 stop24h 40m
Cathay Pacific
Wed 9/95:35 pm
KIX
-
ORD
1 stop34h 45m
Cathay Pacific
Deal found 5/3$986
This BusinessClass deal was found by Cheapflights users on 5/2. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/314:00 pm
ORD
-
KIX
2 stops32h 50m
Cathay Pacific
Mon 9/144:15 pm
KIX
-
ORD
2 stops36h 05m
Cathay Pacific
Deal found 5/2$998
This Travelocity deal was found by Cheapflights users on 5/3. 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 9/24:00 pm
ORD
-
KIX
1 stop24h 40m
Cathay Pacific
Wed 9/164:15 pm
KIX
-
ORD
2 stops35h 40m
Cathay Pacific
Deal found 5/3$1,010
This Gotogate deal was found by Cheapflights users on 5/1. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/34:15 pm
ORD
-
KIX
1 stop24h 25m
Cathay Pacific
Tue 5/199:05 am
KIX
-
ORD
1 stop42h 50m
Cathay Pacific
Deal found 5/1$1,013
This KAYAK deal was found by Cheapflights users on 4/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/134:00 pm
ORD
-
HND
1 stop23h 00m
Cathay Pacific
Thu 9/2410:05 am
HND
-
ORD
1 stop41h 50m
Cathay Pacific
Deal found 4/29$1,141
This FlightHub deal was found by Cheapflights users on 4/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2510:45 pm
ORD
-
HND
1 stop34h 30m
Philippine Airlines
Tue 12/81:15 am
HND
-
ORD
1 stop30h 40m
Philippine Airlines
Deal found 4/29$1,142
This oojo deal was found by Cheapflights users on 4/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/114:15 pm
ORD
-
NRT
2 stops35h 00m
Cathay Pacific
Thu 10/153:45 pm
NRT
-
ORD
2 stops36h 10m
Cathay Pacific
Deal found 4/29$1,144
This KAYAK deal was found by Cheapflights users on 4/30. 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.
Wed 10/283:35 pm
ORD
-
NRT
1 stop32h 35m
Cathay Pacific
Mon 11/94:45 pm
NRT
-
ORD
1 stop35h 10m
Cathay Pacific
Deal found 4/30$1,145
This KAYAK deal was found by Cheapflights users on 4/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/134:15 pm
ORD
-
HND
1 stop39h 20m
Cathay Pacific
Tue 10/274:00 pm
HND
-
ORD
1 stop35h 55m
Cathay Pacific
Deal found 4/29$1,145

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 4, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$966
(oojo)

One-way from

$442
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$1,333

Good round-trip deal

$1,351 or less

Good one-way deal

$686 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 ($30 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 4, 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

Thu 10/29

7:00 am-4:00 pm

1 stop19h 00m

Tokyo Narita

Sun 12/6

6:25 pm-11:59 pm

1 stop20h 34m

$1,319

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Wed 10/28

9:13 am-6:45 pm

2 stops19h 32m

Tokyo Haneda

Wed 11/11

6:20 pm-9:09 pm

1 stop17h 49m

$1,328

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Tue 9/15

5:10 am-7:00 pm

2 stops23h 50m

Tokyo Haneda

Sat 9/19

9:15 pm-10:34 am

2 stops27h 19m

$1,367

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Tue 9/15

5:00 am-3:00 pm

2 stops20h 00m

Tokyo Narita

Sat 9/19

5:00 pm-6:24 pm

1 stop15h 24m

$1,373

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sat 10/10

3:15 pm-7:00 pm

2 stops37h 45m

Tokyo Haneda

Sat 10/24

3:50 pm-6:38 pm

1 stop16h 48m

$1,384

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Wed 8/19

9:16 am-3:25 pm

1 stop16h 09m

Tokyo Haneda

Wed 8/26

6:10 pm-11:50 pm

2 stops19h 40m

$1,418

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Thu 10/1

6:15 am-3:25 pm

1 stop19h 10m

Tokyo Haneda

Sat 10/17

5:45 pm-9:24 pm

1 stop17h 39m

$1,440

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Thu 10/8

6:51 pm-9:35 pm

2 stops36h 44m

Tokyo Haneda

Sun 10/18

10:05 am-10:00 pm

2 stops25h 55m

$1,454

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Wed 10/28

6:30 am-1:45 pm

2 stops41h 15m

Tokyo Haneda

Wed 11/11

4:00 pm-10:29 pm

2 stops45h 29m

$1,464

ChicagoTokyo

ORD - HND

ORDHND

Chicago O'Hare Intl

Sun 10/18

7:35 pm-1:05 pm

2 stops27h 30m

Tokyo Haneda

Tue 11/3

4:25 pm-8:20 pm

1 stop18h 55m

$1,465

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/1

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

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 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 December is currently the most expensive (average of $2,092). 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 4, 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 21% 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 May 2, 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 19h 32m. Fly via United Airlines, Delta, or Cathay Pacific 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 Cathay Pacific from $422 and Air Canada from $468 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 December is currently the most expensive (average of $2,092). 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 May 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$613Average$1,166FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$696Average$925FlexibilityNo cancel feeOn-time72%
Air CanadaCheapest$861Average$1,230FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$893Average$1,453FlexibilityNo cancel feeOn-time69%
ANACheapest$915Average$1,534FlexibilityNo cancel feeOn-time80%
Japan AirlinesCheapest$940Average$1,443FlexibilityNo cancel feeOn-time79%
EVA AirCheapest$978Average$1,278FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$1,001Average$1,448FlexibilityNo cancel feeOn-time71%

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