How does KAYAK find such low prices on flights from Illinois to Tokyo?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Tokyo.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Tokyo?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Tokyo from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Illinois to Tokyo?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Tokyo with an airline and back to Illinois with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Tokyo?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Tokyo from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$465 CHEAP FLIGHTS from Illinois to Tokyo

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Cheap Flights from Illinois to Tokyo

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Illinois to Tokyo

Mon, Feb 1 - Tue, Feb 16

10:50 am - 4:30 pmSTL Lambert-St Louis-NRT Tokyo Narita

38h 40m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

6:45 pm - 9:13 pmNRT Tokyo Narita-STL Lambert-St Louis

41h 28m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$913Air Canada

Mon, Feb 1 - Wed, Feb 17

4:05 pm - 4:40 pmSTL Lambert-St Louis-NRT Tokyo Narita

33h 35m2 stops Toronto Pearson Intl Vancouver Intl

6:45 pm - 3:26 pmNRT Tokyo Narita-STL Lambert-St Louis

35h 41m1 stop Toronto Pearson Intl

$921Air Canada

Sun, Jan 17 - Fri, Jan 29

4:05 pm - 4:40 pmSTL Lambert-St Louis-NRT Tokyo Narita

33h 35m2 stops Toronto Pearson Intl Vancouver Intl

6:45 pm - 3:26 pmNRT Tokyo Narita-STL Lambert-St Louis

35h 41m1 stop Toronto Pearson Intl

$981ANA

Sat, Jan 16 - Fri, Jan 29

4:05 pm - 4:40 pmSTL Lambert-St Louis-NRT Tokyo Narita

33h 35m2 stops Toronto Pearson Intl Vancouver Intl

6:45 pm - 3:26 pmNRT Tokyo Narita-STL Lambert-St Louis

35h 41m1 stop Toronto Pearson Intl

$981ANA

Wed, Nov 25 - Wed, Dec 9

3:55 pm - 3:05 pmORD Chicago O'Hare Intl-NRT Tokyo Narita

32h 10m1 stop Houston George Bush Intcntl

4:00 pm - 8:22 pmNRT Tokyo Narita-ORD Chicago O'Hare Intl

43h 22m2 stops Vancouver Intl Phoenix Sky Harbor Intl

$1,043Multiple Airlines

Thu, Dec 3 - Fri, Dec 11

8:40 pm - 4:30 pmORD Chicago O'Hare Intl-NRT Tokyo Narita

28h 50m3 stops Toronto Pearson Intl Edmonton Calgary

6:30 pm - 2:52 pmNRT Tokyo Narita-ORD Chicago O'Hare Intl

35h 22m3 stops Calgary Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$1,045Multiple Airlines

Mon, Sep 21 - Wed, Sep 30

8:00 am - 3:10 pmSTL Lambert-St Louis-NRT Tokyo Narita

17h 10m1 stop Chicago O'Hare Intl

5:00 pm - 9:21 pmNRT Tokyo Narita-STL Lambert-St Louis

18h 21m1 stop Chicago O'Hare Intl

$1,052United Airlines

Mon, Sep 21 - Wed, Sep 30

6:00 am - 2:45 pmSTL Lambert-St Louis-NRT Tokyo Narita

18h 45m2 stops Chicago O'Hare Intl Denver Intl

5:00 pm - 6:43 pmNRT Tokyo Narita-STL Lambert-St Louis

15h 43m1 stop San Francisco

$1,057United Airlines

Mon, Sep 21 - Wed, Sep 30

2:10 pm - 5:30 pmORD Chicago O'Hare Intl-HND Tokyo Haneda

13h 20mnonstop

1:00 pm - 10:45 amHND Tokyo Haneda-ORD Chicago O'Hare Intl

11h 45mnonstop

$1,087Japan Airlines

Mon, Sep 21 - Sat, Oct 3

10:15 am - 1:25 pmORD Chicago O'Hare Intl-NRT Tokyo Narita

13h 10mnonstop

9:45 am - 7:20 amNRT Tokyo Narita-ORD Chicago O'Hare Intl

11h 35mnonstop

$1,095Japan Airlines

Recent last minute flight deals from Illinois to Tokyo

Sun, Sep 13 - Tue, Sep 29

7:00 am - 2:20 pmSTL Lambert-St Louis-HND Tokyo Haneda

17h 20m1 stop Dallas/Fort Worth

4:30 pm - 7:07 pmHND Tokyo Haneda-STL Lambert-St Louis

16h 37m1 stop Dallas/Fort Worth

$1,038American Airlines

Sun, Sep 13 - Tue, Sep 29

5:00 am - 2:20 pmSTL Lambert-St Louis-HND Tokyo Haneda

19h 20m2 stops Chicago O'Hare Intl Dallas/Fort Worth

11:55 am - 4:40 pmHND Tokyo Haneda-STL Lambert-St Louis

18h 45m2 stops Los Angeles Dallas/Fort Worth

$1,038American Airlines

Sun, Sep 13 - Wed, Sep 30

6:05 am - 2:15 pmMDW Chicago Midway-HND Tokyo Haneda

18h 10m1 stop Atlanta Hartsfield-Jackson

4:05 pm - 6:19 pmHND Tokyo Haneda-MDW Chicago Midway

16h 14m1 stop Minneapolis St Paul

$1,052Delta

Mon, Sep 14 - Tue, Sep 29

9:24 am - 4:15 pmMDW Chicago Midway-HND Tokyo Haneda

16h 51m1 stop Detroit Metropolitan Wayne County

4:05 pm - 6:19 pmHND Tokyo Haneda-MDW Chicago Midway

16h 14m1 stop Minneapolis St Paul

$1,052Delta

Mon, Sep 14 - Mon, Oct 5

12:10 pm - 9:05 pmORD Chicago O'Hare Intl-NRT Tokyo Narita

18h 55m1 stop Incheon Intl

9:20 am - 9:30 amNRT Tokyo Narita-ORD Chicago O'Hare Intl

38h 10m1 stop Incheon Intl

$1,055Korean Air

Mon, Sep 14 - Mon, Sep 28

12:10 pm - 9:05 pmORD Chicago O'Hare Intl-NRT Tokyo Narita

18h 55m1 stop Incheon Intl

9:20 am - 9:30 amNRT Tokyo Narita-ORD Chicago O'Hare Intl

38h 10m1 stop Incheon Intl

$1,055Korean Air

Mon, Sep 14 - Mon, Sep 28

1:54 pm - 4:00 pmORD Chicago O'Hare Intl-NRT Tokyo Narita

36h 06m1 stop Boston Logan Intl

7:00 pm - 12:30 amNRT Tokyo Narita-ORD Chicago O'Hare Intl

43h 30m2 stops Osaka Kansai Intl Los Angeles

$1,061Japan Airlines

Sat, Sep 12 - Wed, Sep 30

3:50 pm - 4:00 pmORD Chicago O'Hare Intl-NRT Tokyo Narita

34h 10m1 stop Boston Logan Intl

7:40 am - 12:30 amNRT Tokyo Narita-ORD Chicago O'Hare Intl

30h 50m2 stops Osaka Kansai Intl Los Angeles

$1,061Japan Airlines

Mon, Sep 14 - Wed, Sep 16

7:11 am - 3:25 pmORD Chicago O'Hare Intl-NRT Tokyo Narita

18h 14m1 stop Montreal Pierre Elliott Trudeau Intl

5:50 pm - 2:52 pmNRT Tokyo Narita-ORD Chicago O'Hare Intl

35h 02m1 stop Montreal Pierre Elliott Trudeau Intl

$1,069Air Canada

Thu, Sep 17 - Sun, Sep 27

7:09 am - 3:40 pmORD Chicago O'Hare Intl-HND Tokyo Haneda

18h 31m1 stop Toronto Pearson Intl

6:05 pm - 7:48 pmHND Tokyo Haneda-ORD Chicago O'Hare Intl

15h 43m1 stop Toronto Pearson Intl

$1,078Air Canada

Recent direct flight deals from Illinois to Tokyo

Mon, Sep 21 - Wed, Sep 30

2:10 pm - 5:30 pmORD Chicago O'Hare Intl-HND Tokyo Haneda

13h 20mnonstop

1:00 pm - 10:45 amHND Tokyo Haneda-ORD Chicago O'Hare Intl

11h 45mnonstop

$1,087Japan Airlines

Wed, Sep 23 - Wed, Oct 7

12:00 pm - 3:25 pmORD Chicago O'Hare Intl-HND Tokyo Haneda

13h 25mnonstop

10:40 am - 8:40 amHND Tokyo Haneda-ORD Chicago O'Hare Intl

12h 00mnonstop

$1,088ANA

Mon, Sep 21 - Sat, Oct 3

12:00 pm - 3:25 pmORD Chicago O'Hare Intl-HND Tokyo Haneda

13h 25mnonstop

5:15 pm - 3:05 pmHND Tokyo Haneda-ORD Chicago O'Hare Intl

11h 50mnonstop

$1,088United Airlines

Mon, Sep 21 - Mon, Oct 5

12:00 pm - 3:25 pmORD Chicago O'Hare Intl-HND Tokyo Haneda

13h 25mnonstop

5:15 pm - 3:05 pmHND Tokyo Haneda-ORD Chicago O'Hare Intl

11h 50mnonstop

$1,088United Airlines

Tue, Sep 29 - Tue, Oct 13

12:00 pm - 3:25 pmORD Chicago O'Hare Intl-HND Tokyo Haneda

13h 25mnonstop

10:40 am - 8:40 amHND Tokyo Haneda-ORD Chicago O'Hare Intl

12h 00mnonstop

$1,088ANA

Mon, Sep 21 - Mon, Oct 5

10:15 am - 1:25 pmORD Chicago O'Hare Intl-NRT Tokyo Narita

13h 10mnonstop

9:45 am - 7:20 amNRT Tokyo Narita-ORD Chicago O'Hare Intl

11h 35mnonstop

$1,095Japan Airlines

Wed, Oct 7 - Wed, Oct 14

10:15 am - 1:25 pmORD Chicago O'Hare Intl-NRT Tokyo Narita

13h 10mnonstop

9:45 am - 7:20 amNRT Tokyo Narita-ORD Chicago O'Hare Intl

11h 35mnonstop

$1,207American Airlines

Mon, Oct 5 - Mon, Oct 12

10:15 am - 1:25 pmORD Chicago O'Hare Intl-NRT Tokyo Narita

13h 10mnonstop

9:45 am - 7:20 amNRT Tokyo Narita-ORD Chicago O'Hare Intl

11h 35mnonstop

$1,207American Airlines

Mon, Mar 8 - Mon, Mar 15

10:40 am - 3:15 pmORD Chicago O'Hare Intl-NRT Tokyo Narita

13h 35mnonstop

6:00 pm - 3:50 pmNRT Tokyo Narita-ORD Chicago O'Hare Intl

11h 50mnonstop

$1,365Multiple Airlines

Sat, Oct 24 - Sat, Oct 31

2:05 pm - 5:45 pmORD Chicago O'Hare Intl-HND Tokyo Haneda

13h 40mnonstop

6:20 pm - 4:10 pmHND Tokyo Haneda-ORD Chicago O'Hare Intl

11h 50mnonstop

$1,398Lufthansa

Useful Info

Low season	January
High season	March
Cheapest flight	$465

Best time to beat the crowds with an average 19% drop in price.

Most popular time to fly with an average 1% increase in price.

Flight from St. Louis to Tokyo Narita Airport

MamiFlew with Japan Airlines-May 2026

I did not find particularly good stuff in Entertainment (movies and TV), so you may want to bring what you like.

Verified travelerFlew with ANA-Jan 2025

Consider light carry-ons to give yourself stretch room for economy and quick onboarding and off boarding especially with connecting flights.

RogerFlew with ANA-Feb 2024

The extra leg room and been able to recline better is worth the extra money. I bidding on the premium and offered the least they would accept and got it.

How does KAYAK find such low prices on flights from Illinois to Tokyo?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Tokyo.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Tokyo?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Tokyo from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Illinois to Tokyo?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Tokyo with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Tokyo?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Tokyo from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Yamanouchi

Izu

Kusatsu

Odawara

Yamanashi

Minakami

Sagamihara

Tsukuba

Kawagoe

Numazu

Fuefuki

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$465 Find Cheap Flights from Illinois to Tokyo - Compare and Save

Cheap Flights from Illinois to Tokyo

Recent round-trip flight deals from Illinois to Tokyo

Recent one-way flight deals from Illinois to Tokyo

Recent last minute flight deals from Illinois to Tokyo

Recent direct flight deals from Illinois to Tokyo

Good to know

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High season

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Flights from Illinois to Tokyo: the best tips from KAYAK users

FAQs for booking flights from Illinois to Tokyo

Traveling to a place near Tokyo?

More options for your flight to Tokyo

Complete your trip to Tokyo with a hotel stay or car rental

Cabin class types available on flights to Illinois

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