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.

$380 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

Wed, Jan 13 - Wed, Jan 20

7:00 pm - 4:30 pmSTL Lambert-St Louis-NRT Tokyo Narita

30h 30m2 stops Chicago O'Hare Intl Toronto Pearson Intl

6:45 pm - 12:13 pmNRT Tokyo Narita-STL Lambert-St Louis

32h 28m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$769Air Canada

Sun, Feb 7 - Thu, Feb 18

4:05 pm - 4:30 pmSTL Lambert-St Louis-NRT Tokyo Narita

33h 25m1 stop Toronto Pearson Intl

6:45 pm - 3:41 pmNRT Tokyo Narita-STL Lambert-St Louis

35h 56m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$772Air Canada

Mon, Feb 1 - Wed, Feb 17

7:00 pm - 4:30 pmSTL Lambert-St Louis-NRT Tokyo Narita

30h 30m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

6:45 pm - 11:09 pmNRT Tokyo Narita-STL Lambert-St Louis

19h 24m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$796Multiple Airlines

Tue, Sep 22 - Tue, Sep 29

6:15 am - 2:00 pmSTL Lambert-St Louis-NRT Tokyo Narita

17h 45m1 stop Houston George Bush Intcntl

5:00 pm - 2:10 pmNRT Tokyo Narita-STL Lambert-St Louis

35h 10m1 stop Houston George Bush Intcntl

$846ANA

Wed, Sep 16 - Wed, Sep 23

8:30 am - 3:10 pmSTL Lambert-St Louis-NRT Tokyo Narita

16h 40m1 stop Chicago O'Hare Intl

5:05 pm - 6:39 pmNRT Tokyo Narita-STL Lambert-St Louis

15h 34m1 stop San Francisco

$858Multiple Airlines

Mon, Feb 1 - Fri, Feb 12

1:09 pm - 9:05 pmSTL Lambert-St Louis-HND Tokyo Haneda

16h 56m1 stop Chicago O'Hare Intl

6:20 pm - 10:41 amHND Tokyo Haneda-STL Lambert-St Louis

31h 21m1 stop Chicago O'Hare Intl

$863ANA

Tue, Oct 6 - Tue, Oct 13

10:35 am - 4:15 pmSTL Lambert-St Louis-HND Tokyo Haneda

15h 40m1 stop Detroit Metropolitan Wayne County

3:15 pm - 11:54 pmHND Tokyo Haneda-STL Lambert-St Louis

22h 39m1 stop Atlanta Hartsfield-Jackson

$1,017Delta

Sun, Oct 4 - Tue, Oct 13

10:29 am - 4:15 pmSTL Lambert-St Louis-HND Tokyo Haneda

15h 46m1 stop Detroit Metropolitan Wayne County

4:05 pm - 4:43 pmHND Tokyo Haneda-STL Lambert-St Louis

14h 38m1 stop Minneapolis St Paul

$1,017Delta

Sat, Sep 19 - Fri, Oct 2

9:10 pm - 4:45 amORD Chicago O'Hare Intl-HND Tokyo Haneda

17h 35m1 stop Los Angeles

11:55 am - 3:53 pmHND Tokyo Haneda-ORD Chicago O'Hare Intl

17h 58m1 stop Los Angeles

$1,046American Airlines

Sat, Sep 19 - Fri, Oct 2

9:10 pm - 4:45 amORD Chicago O'Hare Intl-HND Tokyo Haneda

17h 35m1 stop Los Angeles

11:55 am - 3:53 pmHND Tokyo Haneda-ORD Chicago O'Hare Intl

17h 58m1 stop Los Angeles

$1,048American Airlines

Recent last minute flight deals from Illinois to Tokyo

Mon, Sep 7 - Wed, Sep 30

6:20 am - 2:20 pmSTL Lambert-St Louis-HND Tokyo Haneda

18h 00m2 stops Minneapolis St Paul Seattle/Tacoma Intl

4:35 pm - 12:44 amHND Tokyo Haneda-STL Lambert-St Louis

22h 09m2 stops Los Angeles Salt Lake City

$828Delta

Mon, Sep 7 - Wed, Sep 30

6:20 am - 1:05 pmSTL Lambert-St Louis-HND Tokyo Haneda

16h 45m1 stop Minneapolis St Paul

4:35 pm - 12:44 amHND Tokyo Haneda-STL Lambert-St Louis

22h 09m2 stops Los Angeles Salt Lake City

$828Delta

Mon, Sep 7 - Wed, Sep 30

12:10 pm - 3:25 pmSTL Lambert-St Louis-NRT Tokyo Narita

37h 15m1 stop Montreal Pierre Elliott Trudeau Intl

5:50 pm - 6:41 pmNRT Tokyo Narita-STL Lambert-St Louis

38h 51m1 stop Montreal Pierre Elliott Trudeau Intl

$898Air Canada

Mon, Sep 7 - Mon, Sep 14

8:30 am - 3:25 pmSTL Lambert-St Louis-HND Tokyo Haneda

16h 55m1 stop Chicago O'Hare Intl

5:15 pm - 8:00 pmHND Tokyo Haneda-STL Lambert-St Louis

16h 45m1 stop Chicago O'Hare Intl

$902ANA

Mon, Sep 7 - Mon, Sep 28

12:10 pm - 3:25 pmSTL Lambert-St Louis-NRT Tokyo Narita

37h 15m1 stop Montreal Pierre Elliott Trudeau Intl

5:50 pm - 8:20 pmNRT Tokyo Narita-STL Lambert-St Louis

16h 30m1 stop Toronto Pearson Intl

$903Air Canada

Mon, Sep 7 - Mon, Sep 14

6:15 am - 2:00 pmSTL Lambert-St Louis-NRT Tokyo Narita

17h 45m1 stop Houston George Bush Intcntl

5:25 pm - 11:38 pmNRT Tokyo Narita-STL Lambert-St Louis

20h 13m1 stop Newark

$905ANA

Wed, Sep 9 - Wed, Sep 23

7:25 am - 7:10 pmORD Chicago O'Hare Intl-NRT Tokyo Narita

45h 45m2 stops Houston George Bush Intcntl Los Angeles

11:30 am - 2:17 pmNRT Tokyo Narita-ORD Chicago O'Hare Intl

16h 47m1 stop Houston George Bush Intcntl

$1,044Multiple Airlines

Mon, Sep 7 - Wed, Sep 30

5:00 am - 3:05 pmORD Chicago O'Hare Intl-HND Tokyo Haneda

20h 05m2 stops Denver Intl Los Angeles

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

11h 50mnonstop

$1,045United Airlines

Mon, Sep 7 - Tue, Sep 15

5:55 am - 3:00 pmORD Chicago O'Hare Intl-NRT Tokyo Narita

19h 05m2 stops Los Angeles San Francisco

5:00 pm - 2:55 pmNRT Tokyo Narita-ORD Chicago O'Hare Intl

11h 55mnonstop

$1,045United Airlines

Tue, Sep 8 - Mon, Oct 5

12:10 pm - 12:40 pmORD Chicago O'Hare Intl-NRT Tokyo Narita

34h 30m1 stop Incheon Intl

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

38h 10m1 stop Incheon Intl

$1,055Korean Air

Recent direct flight deals from Illinois to Tokyo

Wed, Sep 23 - Wed, Oct 7

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

$1,047ANA

Mon, Sep 28 - Fri, Oct 9

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

$1,047ANA

Sun, Nov 1 - Tue, Nov 17

10:25 am - 2:55 pmORD Chicago O'Hare Intl-NRT Tokyo Narita

13h 30mnonstop

10:45 am - 7:30 amNRT Tokyo Narita-ORD Chicago O'Hare Intl

11h 45mnonstop

$1,070Japan Airlines

Sat, Sep 19 - Fri, Oct 2

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

$1,083United Airlines

Fri, Oct 16 - Fri, Oct 23

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

$1,086Japan Airlines

Wed, Sep 16 - Mon, Sep 21

5:45 pm - 9:15 pmORD Chicago O'Hare Intl-HND Tokyo Haneda

13h 30mnonstop

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

11h 50mnonstop

$1,086United Airlines

Sun, Nov 1 - Fri, Nov 13

10:25 am - 2:55 pmORD Chicago O'Hare Intl-NRT Tokyo Narita

13h 30mnonstop

10:45 am - 7:30 amNRT Tokyo Narita-ORD Chicago O'Hare Intl

11h 45mnonstop

$1,086American Airlines

Mon, Jan 18 - Thu, Jan 28

1:30 pm - 5:50 pmORD Chicago O'Hare Intl-HND Tokyo Haneda

13h 20mnonstop

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

11h 50mnonstop

$1,185American Airlines

Wed, Dec 2 - Wed, Jan 27

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

13h 35mnonstop

6:00 pm - 2:50 pmNRT Tokyo Narita-ORD Chicago O'Hare Intl

11h 50mnonstop

$1,314Multiple Airlines

Wed, Nov 18 - Mon, Nov 30

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

13h 35mnonstop

6:00 pm - 2:50 pmNRT Tokyo Narita-ORD Chicago O'Hare Intl

11h 50mnonstop

$1,363Multiple Airlines

Useful Info

Low season	January
High season	March
Cheapest flight	$380

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

Sagamihara

Minakami

Tsukuba

Kawagoe

Numazu

Fuefuki

More options for your flight to Tokyo

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

$380 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

Low season

High season

Cheapest flight

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

Find direct flights for Tokyo

Flights from domestic origins to Tokyo

Choose which airport to fly into in Tokyo

Flights to other popular destinations

Find deals for your return flight