HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Japan

$311+ 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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — FUK
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Japan with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Illinois to Japan

Keep the following information in mind while searching for Illinois to Japan flight deals. Data was last updated January 15, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$643
(Kiwi.com)

One-way from

$311
(SmartFares)

Popular in

June

Cheapest in

September

Average price

$1,014

Good round-trip deal

$961 or less

Good one-way deal

$529 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. 15% potential increase in price ($238 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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

Find 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 January 15, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/14. 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.
Sat 1/176:19 pm
STL
-
NRT
1 stop30h 41m
Hawaiian Airlines
Wed 1/286:30 pm
NRT
-
STL
1 stop34h 24m
Hawaiian Airlines
Deal found 1/14$642
This Kiwi.com deal was found by Cheapflights users on 1/14. 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.
Sun 2/227:00 am
STL
-
NRT
1 stop18h 00m
Hawaiian Airlines
Tue 3/106:30 pm
NRT
-
STL
1 stop33h 21m
Hawaiian Airlines
Deal found 1/14$643
This SmartFares deal was found by Cheapflights users on 1/14. 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.
Mon 1/262:50 pm
STL
-
NRT
1 stop34h 10m
Multiple Airlines
Fri 2/66:30 pm
NRT
-
STL
1 stop19h 16m
Multiple Airlines
Deal found 1/14$660
This Kiwi.com deal was found by Cheapflights users on 1/13. 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.
Sat 2/76:19 pm
STL
-
NRT
1 stop30h 41m
Multiple Airlines
Thu 2/266:30 pm
NRT
-
STL
1 stop20h 29m
Multiple Airlines
Deal found 1/13$661
This Kiwi.com deal was found by Cheapflights users on 1/13. 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 3/92:47 pm
STL
-
NRT
1 stop35h 13m
Multiple Airlines
Thu 3/266:30 pm
NRT
-
STL
1 stop19h 29m
Multiple Airlines
Deal found 1/13$662
This Alaska Airlines deal was found by Cheapflights users on 1/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/227:00 am
STL
-
NRT
1 stop18h 00m
Multiple Airlines
Thu 2/266:30 pm
NRT
-
STL
1 stop20h 29m
Multiple Airlines
Deal found 1/13$671
This Expedia deal was found by Cheapflights users on 1/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/182:50 pm
STL
-
NRT
1 stop34h 10m
Multiple Airlines
Tue 1/206:30 pm
NRT
-
STL
1 stop34h 24m
Multiple Airlines
Deal found 1/14$679
This Ovago deal was found by Cheapflights users on 1/13. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/27:00 am
STL
-
NRT
1 stop18h 00m
Multiple Airlines
Thu 3/126:30 pm
NRT
-
STL
1 stop19h 29m
Multiple Airlines
Deal found 1/13$681
This Kiwi.com deal was found by Cheapflights users on 1/13. 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.
Fri 2/62:50 pm
STL
-
NRT
1 stop34h 10m
Multiple Airlines
Thu 2/266:30 pm
NRT
-
STL
1 stop20h 29m
Multiple Airlines
Deal found 1/13$683
This SmartFares deal was found by Cheapflights users on 1/13. 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.
Thu 2/197:00 am
STL
-
NRT
1 stop18h 00m
Multiple Airlines
Wed 2/256:30 pm
NRT
-
STL
1 stop34h 21m
Multiple Airlines
Deal found 1/13$684
This Kiwi.com deal was found by Cheapflights users on 1/13. 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.
Wed 1/142:50 pm
STL
-
NRT
1 stop34h 10m
Multiple Airlines
Wed 1/216:30 pm
NRT
-
STL
1 stop34h 24m
Multiple Airlines
Deal found 1/13$685
This Air Canada deal was found by Cheapflights users on 1/12. 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 2/104:05 pm
STL
-
HND
1 stop33h 35m
Air Canada
Tue 2/176:50 pm
HND
-
STL
1 stop35h 39m
Air Canada
Deal found 1/12$698

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 January 15, 2026.
Use the filters below to find and compare flights from Illinois to Japan that are best for you.

Fly from

Illinois

Fly to

Japan

Route

Depart

Return

Price

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Sun 2/22

7:00 am-4:00 pm

1 stop18h 00m

Tokyo Narita

Thu 2/26

6:30 pm-11:59 pm

1 stop20h 29m

$671

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Mon 1/26

2:50 pm-4:00 pm

1 stop34h 10m

Tokyo Narita

Fri 1/30

6:30 pm-10:46 pm

1 stop19h 16m

$678

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Mon 1/26

2:50 pm-4:00 pm

1 stop34h 10m

Tokyo Narita

Fri 2/6

6:30 pm-10:46 pm

1 stop19h 16m

$678

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Mon 2/23

7:00 am-4:00 pm

1 stop18h 00m

Tokyo Narita

Thu 3/5

6:30 pm-1:51 pm

1 stop34h 21m

$678

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Mon 2/9

2:50 pm-4:00 pm

1 stop34h 10m

Tokyo Narita

Fri 2/27

6:30 pm-11:59 pm

1 stop20h 29m

$678

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Sun 2/22

7:00 am-4:00 pm

1 stop18h 00m

Tokyo Narita

Sat 2/28

6:30 pm-2:23 pm

1 stop34h 53m

$685

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Wed 2/18

11:25 am-4:20 pm

2 stops37h 55m

Tokyo Narita

Wed 2/25

6:15 pm-3:29 pm

2 stops36h 14m

$696

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Mon 2/23

8:17 am-5:45 pm

1 stop18h 28m

Tokyo Haneda

Thu 3/5

6:20 pm-10:36 am

1 stop31h 16m

$737

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Mon 1/26

6:57 pm-3:20 pm

2 stops29h 23m

Tokyo Haneda

Fri 2/6

5:20 pm-8:37 pm

2 stops18h 17m

$751

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Tue 2/10

6:00 am-5:45 pm

2 stops20h 45m

Tokyo Haneda

Tue 2/17

4:50 pm-11:23 pm

2 stops21h 33m

$751

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/14

Showing 1-10 of 60 results
1
2
3
...
6

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 $576). Flying from Illinois to Japan in June is currently the most expensive (average of $1,021). 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 January 15, 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 50% 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 January 10, 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 18h 28m. Fly via ANA, Delta, or Air Canada 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 $95 on Frontier. Other airlines that offer cheap prices include American Airlines from $109 and Southwest from $130 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 $576). Flying from Illinois to Japan in June is currently the most expensive (average of $1,021). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Japan

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Haneda flights
John F Kennedy Intl to Haneda flights
Newark to Haneda flights
Newark to Narita flights
Los Angeles to Narita flights
San Francisco to Haneda flights
John F Kennedy Intl to Narita flights
Dallas/Fort Worth to Narita flights
John F Kennedy Intl to New Delhi flights
Los Angeles to Manila flights
Seattle to Haneda flights
LaGuardia to Narita flights
Seattle to Narita flights
Dallas/Fort Worth to Haneda flights
O'Hare Intl to Narita flights
San Francisco to Narita flights
LaGuardia to Haneda flights
O'Hare Intl to Haneda flights
Newark to New Delhi flights
San Francisco to New Delhi flights
Dulles Intl to Haneda flights
Los Angeles to Suvarnabhumi flights
Hobby to Haneda flights
Ontario to Narita flights
Boston to Narita flights
John F Kennedy Intl to Suvarnabhumi flights
San Francisco to Manila flights
Los Angeles to Incheon Intl flights
Denver to Narita flights
John F Kennedy Intl to Mumbai flights
Los Angeles to Ho Chi Minh City flights
Seattle to Suvarnabhumi flights
John F Kennedy Intl to Incheon Intl flights
Atlanta to Haneda flights
George Bush Intcntl to Haneda flights
Dulles Intl to Narita flights
John F Kennedy Intl to Hong Kong flights
LaGuardia to New Delhi flights
Honolulu to Narita flights
Los Angeles to Taiwan Taoyuan Intl flights
San Francisco to Taiwan Taoyuan Intl flights
O'Hare Intl to Suvarnabhumi flights
Newark to Suvarnabhumi flights
Santa Ana to Narita flights
John F Kennedy Intl to Taiwan Taoyuan Intl flights
Boston to Haneda flights
San Francisco to Hong Kong flights
Burbank to Narita flights
John F Kennedy Intl to Manila flights
John F Kennedy Intl to Hongqiao Intl flights

Top 9 airlines flying from Illinois to Japan

Discover the top 9 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 January 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
EVA AirCheapest$592Average$1,338FlexibilityNo cancel feeOn-time74%
Cathay PacificCheapest$696Average$928FlexibilityNo cancel feeOn-time72%
DeltaCheapest$744Average$1,187FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$759Average$891FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$781Average$1,447FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$823Average$1,170FlexibilityNo cancel feeOn-time67%
ANACheapest$920Average$1,654FlexibilityNo cancel feeOn-time80%
Japan AirlinesCheapest$958Average$1,591FlexibilityNo cancel feeOn-time79%
American AirlinesCheapest$1,010Average$1,766FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.