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.

$409 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

Thu, Oct 15 - Sat, Oct 24

10:15 am - 7:40 pmORD Chicago O'Hare Intl-NRT Tokyo Narita

43h 25m2 stops Addis Ababa Bole Incheon Intl

8:40 pm - 8:40 amNRT Tokyo Narita-ORD Chicago O'Hare Intl

50h 00m3 stops Incheon Intl Addis Ababa Bole Rome Fiumicino

$895Ethiopian Air

Mon, Nov 9 - Mon, Nov 23

6:50 pm - 4:30 pmSTL Lambert-St Louis-NRT Tokyo Narita

30h 40m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

6:45 pm - 10:32 amNRT Tokyo Narita-STL Lambert-St Louis

30h 47m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$921Air Canada

Sun, Feb 7 - Fri, Feb 19

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

33h 25m1 stop Toronto Pearson Intl

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

35h 41m1 stop Toronto Pearson Intl

$922Air Canada

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

Mon, Jan 18 - 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

Fri, Nov 13 - Mon, Nov 23

10:45 pm - 12:50 pmORD Chicago O'Hare Intl-NRT Tokyo Narita

23h 05m1 stop Manila Ninoy Aquino Intl

9:20 am - 10:31 pmNRT Tokyo Narita-ORD Chicago O'Hare Intl

28h 11m2 stops Manila Ninoy Aquino Intl Los Angeles Los Angeles

$1,066Multiple Airlines

Mon, Sep 28 - Wed, Oct 7

5:43 am - 3:00 pmSTL Lambert-St Louis-NRT Tokyo Narita

19h 17m1 stop Dallas/Fort Worth

6:30 pm - 9:59 pmNRT Tokyo Narita-STL Lambert-St Louis

17h 29m1 stop Dallas/Fort Worth

$1,081American Airlines

Mon, Sep 28 - Wed, Oct 7

3:12 pm - 2:45 pmSTL Lambert-St Louis-NRT Tokyo Narita

33h 33m2 stops Houston George Bush Intcntl Denver Intl

4:30 pm - 4:37 pmNRT Tokyo Narita-STL Lambert-St Louis

14h 07m1 stop Denver Intl

$1,086United Airlines

Wed, Nov 4 - Tue, Nov 17

7:24 am - 6:25 pmSTL Lambert-St Louis-HND Tokyo Haneda

20h 01m1 stop Dallas/Fort Worth

6:00 pm - 8:42 pmHND Tokyo Haneda-STL Lambert-St Louis

17h 42m1 stop Los Angeles Los Angeles

$1,109American Airlines

Mon, Feb 8 - Thu, Feb 18

7:30 am - 3:00 pmSTL Lambert-St Louis-NRT Tokyo Narita

16h 30m1 stop Chicago O'Hare Intl

5:40 pm - 4:26 pmNRT Tokyo Narita-STL Lambert-St Louis

13h 46m1 stop Denver Intl

$1,110United Airlines

Recent last minute flight deals from Illinois to Tokyo

Mon, Sep 21 - Thu, Oct 1

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

$1,018Japan Airlines

Mon, Sep 21 - Thu, Oct 1

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

13h 10mnonstop

5:15 pm - 7:59 pmNRT Tokyo Narita-ORD Chicago O'Hare Intl

16h 44m1 stop San Diego

$1,025Japan Airlines

Mon, Sep 21 - Thu, Oct 1

3:45 pm - 3:25 pmORD Chicago O'Hare Intl-NRT Tokyo Narita

33h 40m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

5:50 pm - 8:12 pmNRT Tokyo Narita-ORD Chicago O'Hare Intl

16h 22m1 stop Montreal Pierre Elliott Trudeau Intl

$1,043Air Canada

Mon, Sep 21 - 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 - 2:00 pmNRT Tokyo Narita-STL Lambert-St Louis

34h 10m1 stop Toronto Pearson Intl

$1,051ANA

Mon, Sep 21 - Thu, Oct 1

8:23 am - 3:50 pmORD Chicago O'Hare Intl-HND Tokyo Haneda

17h 27m1 stop Los Angeles Los Angeles

4:30 pm - 8:30 pmHND Tokyo Haneda-ORD Chicago O'Hare Intl

18h 00m1 stop Dallas/Fort Worth

$1,051American Airlines

Sun, Sep 20 - Tue, Oct 6

5:43 am - 2:20 pmSTL Lambert-St Louis-HND Tokyo Haneda

18h 37m1 stop Dallas/Fort Worth

4:30 pm - 9:59 pmHND Tokyo Haneda-STL Lambert-St Louis

19h 29m1 stop Dallas/Fort Worth

$1,051American Airlines

Sun, Sep 20 - Tue, Oct 6

5:59 pm - 1:05 pmSTL Lambert-St Louis-HND Tokyo Haneda

29h 06m2 stops Detroit Metropolitan Wayne County Minneapolis St Paul

4:05 pm - 11:54 pmHND Tokyo Haneda-STL Lambert-St Louis

21h 49m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson

$1,057Delta

Sun, Sep 20 - Tue, Oct 6

6:00 am - 4:15 pmSTL Lambert-St Louis-HND Tokyo Haneda

20h 15m2 stops Atlanta Hartsfield-Jackson Detroit Metropolitan Wayne County

3:15 pm - 6:15 pmHND Tokyo Haneda-STL Lambert-St Louis

17h 00m1 stop Atlanta Hartsfield-Jackson

$1,057Delta

Sun, Sep 20 - Fri, Oct 9

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

18h 14m1 stop Montreal Pierre Elliott Trudeau Intl

5:50 pm - 8:12 pmNRT Tokyo Narita-ORD Chicago O'Hare Intl

16h 22m1 stop Montreal Pierre Elliott Trudeau Intl

$1,069Air Canada

Fri, Sep 18 - Sun, Sep 20

8:00 am - 3:25 pmSTL Lambert-St Louis-HND Tokyo Haneda

17h 25m1 stop Chicago O'Hare Intl

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

16h 45m1 stop Chicago O'Hare Intl

$1,149ANA

Recent direct flight deals from Illinois to Tokyo

Tue, Sep 29 - Tue, Oct 13

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

$1,101Japan Airlines

Mon, Sep 28 - Wed, Oct 7

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

$1,101Japan Airlines

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

$1,107ANA

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

$1,107ANA

Mon, Sep 28 - Tue, Oct 13

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

13h 30mnonstop

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

12h 00mnonstop

$1,147United Airlines

Tue, Sep 29 - Tue, Oct 6

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

$1,152United Airlines

Sun, Sep 27 - Tue, Oct 13

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

$1,262American Airlines

Mon, Nov 9 - Wed, Nov 18

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

$1,265American Airlines

Thu, Feb 25 - 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

$1,415Multiple Airlines

Thu, Feb 25 - 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

$1,415Multiple Airlines

Useful Info

Low season	January
High season	March
Cheapest flight	$409

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

Most popular time to fly with an average 2% 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

More options for your flight to Tokyo

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

$409 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