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$431+ 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 8/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — FUK
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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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 May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$900
(FlightHub)

One-way from

$431
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$1,423

Good round-trip deal

$940 or less

Good one-way deal

$546 or less
Provider with most accurate pricing for Chicago (CHI)-Tokyo (TYO) flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Tokyo (TYO) flights.
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From Illinois to Japan
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One-way flight from Illinois to Japan
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Highest demand for flights based on searches. 5% potential increase in price ($89 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Price to beat on a round-trip flight from Illinois to Japan.
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Price to beat on a one-way flight from Illinois to Japan.
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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 May 1, 2025.

This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/154:00 pmORD - KIX
1 stop24h 40mCathay Pacific
Sun 9/285:45 pmKIX - ORD
1 stop34h 40mCathay Pacific
Deal found 4/30$900
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/15:18 pmSTL - HND
2 stops21h 22mUnited Airlines
Wed 11/124:25 pmHND - STL
2 stops19h 34mUnited Airlines
Deal found 4/30$909
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/17:00 amSTL - NRT
1 stop19h 00mAlaska Airlines
Wed 11/126:25 pmNRT - STL
1 stop20h 31mAlaska Airlines
Deal found 4/30$910
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/95:57 pmSTL - NRT
1 stop30h 33mAmerican Airlines
Wed 11/125:30 pmNRT - STL
1 stop15h 47mAmerican Airlines
Deal found 4/30$914
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/145:15 amSTL - NRT
2 stops21h 15mUnited Airlines
Tue 10/214:30 pmNRT - STL
1 stop18h 16mUnited Airlines
Deal found 4/30$915
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/274:05 pmSTL - HND
1 stop33h 45mAir Canada
Sat 11/16:50 pmHND - STL
2 stops35h 31mAir Canada
Deal found 4/30$920
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/39:09 amSTL - HND
1 stop22h 06mANA
Tue 8/265:15 pmHND - STL
1 stop16h 12mANA
Deal found 4/30$931
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/141:30 pmSTL - NRT
1 stop35h 55mAir Canada
Tue 10/214:50 pmNRT - STL
1 stop36h 28mAir Canada
Deal found 4/30$937
This Cathay Pacific 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/84:00 pmORD - NRT
1 stop24h 40mCathay Pacific
Fri 9/199:40 pmNRT - ORD
1 stop30h 45mCathay Pacific
Deal found 4/30$954
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/96:58 pmORD - NRT
1 stop29h 52mMultiple Airlines
Sat 6/144:25 pmNRT - ORD
2 stops27h 47mMultiple Airlines
Deal found 4/30$957
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/37:15 pmSTL - HND
2 stops29h 00mDelta
Tue 8/263:15 pmHND - STL
2 stops22h 24mDelta
Deal found 4/30$959
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/174:00 pmORD - HND
1 stop38h 25mCathay Pacific
Fri 9/269:55 amHND - ORD
1 stop42h 30mCathay Pacific
Deal found 4/30$963

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 1, 2025.
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 - HND

STLHND

Lambert-St Louis

Wed 10/1

9:00 am-9:00 pm

2 stops22h 00m

Tokyo Haneda

Fri 10/31

12:50 am-10:27 am

2 stops23h 37m

$910

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Tue 10/14

5:15 am-4:30 pm

2 stops21h 15m

Tokyo Narita

Tue 10/21

4:30 pm-8:46 pm

1 stop18h 16m

$915

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sat 9/27

4:05 pm-3:50 pm

1 stop33h 45m

Tokyo Haneda

Sat 11/1

6:50 pm-4:21 pm

2 stops35h 31m

$920

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sun 8/3

9:09 am-9:15 pm

1 stop22h 06m

Tokyo Haneda

Tue 8/26

5:15 pm-7:27 pm

1 stop16h 12m

$931

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Tue 10/14

1:30 pm-3:25 pm

1 stop35h 55m

Tokyo Narita

Tue 10/21

4:50 pm-3:18 pm

1 stop36h 28m

$937

ChicagoTokyo

ORD - NRT

ORDNRT

Chicago O'Hare Intl

Sun 5/25

5:30 pm-12:35 pm

2 stops29h 05m

Tokyo Narita

Tue 5/27

2:35 pm-6:42 am

1 stop30h 07m

$954

ChicagoTokyo

ORD - NRT

ORDNRT

Chicago O'Hare Intl

Sat 5/10

4:00 pm-5:15 pm

2 stops35h 15m

Tokyo Narita

Sun 5/18

3:45 pm-2:25 pm

2 stops36h 40m

$955

ChicagoOsaka

ORD - KIX

ORDKIX

Chicago O'Hare Intl

Tue 5/6

4:00 pm-3:15 pm

1 stop33h 15m

Osaka Kansai Intl

Tue 5/20

6:35 pm-2:25 pm

1 stop33h 50m

$957

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sun 8/3

7:15 pm-2:15 pm

2 stops29h 00m

Tokyo Haneda

Tue 8/26

3:15 pm-11:39 pm

2 stops22h 24m

$959

ChicagoTokyo

ORD - HND

ORDHND

Chicago O'Hare Intl

Fri 5/9

4:00 pm-9:35 pm

1 stop39h 35m

Tokyo Haneda

Thu 5/29

10:05 am-2:25 pm

1 stop42h 20m

$974

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 60 results
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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, February is the cheapest month in which you can book a flight from Illinois to Japan (average of $871). Flying from Illinois to Japan in December is currently the most expensive (average of $1,656). 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 1, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Japan as you normally would.

Rainfall in Japan by month

Plan your trip to Japan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Japan ranges from 2.0 - 8.3 inches per month. September is typically the wettest month, when rainfall can reach 8.3 in. January is typically the driest time to visit Japan when rainfall is around 2.0 in.

Temperature in Japan by month

Plan your trip to Japan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Japan, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 42.8 F).

Reviews of airlines servicing Japan

Get insights into the airlines that provide service to Japan. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Japan. Reviews last updated May 1, 2025.
Get a feel of what it's like to fly with EVA Air, Korean Air and Japan Airlines from Illinois to Japan by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,186 reviews

Overall

8.4

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Crew

8.6

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
EVA Air
8.4
Very good
1,186 reviews
EVA Air
8.4
Very good
1,186 reviews

Overall

8.4

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Crew

8.6

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Korean Air
8.4
Very good
1,068 reviews
EVA Air
8.4
Very good
1,186 reviews

Overall

8.4

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Crew

8.6

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Japan Airlines
8.3
Very good
1,464 reviews
EVA Air
8.4
Very good
1,186 reviews

Overall

8.4

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Crew

8.6

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
China Airlines
8.3
Very good
732 reviews
EVA Air
8.4
Very good
1,186 reviews

Overall

8.4

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Crew

8.6

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
ANA
8.3
Very good
852 reviews
EVA Air
8.4
Very good
1,186 reviews

Overall

8.4

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Crew

8.6

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

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.

  • 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 $431 on American Airlines. Other airlines that offer cheap prices include United Airlines from $437 and Japan Airlines from $464 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, February is the cheapest month in which you can book a flight from Illinois to Japan (average of $871). Flying from Illinois to Japan in December is currently the most expensive (average of $1,656). 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$143Average$1,612FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$757Average$1,537FlexibilityNo cancel feeOn-time69%
DeltaCheapest$822Average$1,341FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$826Average$967FlexibilityNo cancel feeOn-time72%
Air CanadaCheapest$829Average$1,082FlexibilityNo cancel feeOn-time67%
Hawaiian AirlinesCheapest$880Average$891FlexibilityNo cancel feeOn-time85%
EVA AirCheapest$918Average$1,200FlexibilityNo cancel feeOn-time74%
ANACheapest$983Average$1,597FlexibilityNo cancel feeOn-time80%
Japan AirlinesCheapest$1,008Average$1,682FlexibilityNo cancel feeOn-time79%

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