What is the cheapest airline that flies from Illinois to Japan?

Air Canada, United Airlines, and Delta are the most popular carriers operating from Illinois to Japan

How many flights depart from Illinois to Japan on average per week?

As of December 2025, there are 105 flights per week flying from Illinois to Japan. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.

What airlines fly to Japan?

ANA, Air Canada and United Airlines are the top three most popular airlines that fly to Japan from Illinois according to our data. ANA is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Japan. Keep in mind that there are 9 different airlines that fly to Japan on a routine basis, so you have a few additional options to choose from.

How many flights depart from Illinois to Japan on average per day?

As of December 2025, there are 15 flights per day flying from Illinois to Japan. The most common time of day flights depart is 10:00AM, with 59% of flights taking off in the afternoon.

When did momondo last update prices for flights from Illinois to Japan?

Prices for flights from Illinois to Japan are refreshed on a daily basis.

How many operators does momondo search for flights from Illinois to Japan?

As of December 2025, there are 9 operators available to choose from for flights from Illinois to Japan.

How old do you have to be to fly from Illinois to Japan?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Japan.

What documentation or ID do you need to fly to Japan?

The travel and health documents you'll need for your trip to Japan may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Japan. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$347 Cheap Flights from Illinois to Japan in 2025/26

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Find the cheapest flights from Illinois to Japan

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:19 pm - 4:00 pm

STL

NRT

30h 41m1 stop

6:30 pm - 10:46 pm

NRT

STL

19h 16m1 stop

$624Hawaiian Airlines

Sat, Jan 10 - Fri, Jan 23

4:05 pm - 4:20 pm

STL

NRT

33h 15m2 stops

6:15 pm - 3:29 pm

NRT

STL

36h 14m2 stops

$642Air Canada

Mon, Feb 23 - Thu, Mar 5

2:50 pm - 4:00 pm

STL

NRT

34h 10m1 stop

6:30 pm - 1:54 pm

NRT

STL

34h 24m1 stop

$686Multiple Airlines

Mon, Jan 26 - Wed, Feb 4

8:17 am - 5:45 pm

STL

HND

18h 28m1 stop

6:20 pm - 12:27 pm

HND

STL

33h 07m1 stop

$696ANA

Mon, Feb 23 - Thu, Mar 5

5:14 am - 6:30 pm

STL

HND

22h 16m1 stop

5:55 pm - 10:54 pm

HND

STL

19h 59m1 stop

$697American Airlines

Mon, Feb 23 - Thu, Mar 5

7:00 am - 6:30 pm

STL

HND

20h 30m1 stop

8:25 pm - 11:48 pm

HND

STL

18h 23m1 stop

$698American Airlines

Sun, Feb 22 - Sat, Mar 7

6:00 pm - 2:50 pm

STL

HND

29h 50m2 stops

9:15 pm - 11:34 pm

HND

STL

17h 19m2 stops

$702United Airlines

Sun, Feb 22 - Sat, Mar 7

6:00 am - 3:30 pm

STL

NRT

18h 30m1 stop

5:00 pm - 11:34 pm

NRT

STL

21h 34m2 stops

$704United Airlines

Sun, Feb 22 - Sat, Mar 7

2:50 pm - 4:00 pm

STL

NRT

34h 10m1 stop

6:30 pm - 1:54 pm

NRT

STL

34h 24m1 stop

$713Multiple Airlines

Mon, Jan 26 - Mon, Feb 2

11:20 am - 9:05 pm

STL

HND

18h 45m1 stop

10:25 am - 12:29 pm

HND

STL

17h 04m1 stop

$731ANA

Mon, Jan 26 - Wed, Feb 4

Air Canada flights from Illinois to Japan

Our best Air Canada deals on Illinois to Japan flight tickets

Air Canada

Feb 23

STL4:05 pmLambert-St Louis

33h 15m

2 stops

NRT4:20 pmTokyo Narita

Mar 5

NRT6:15 pmTokyo Narita

36h 14m

2 stops

STL3:29 pmLambert-St Louis

$642

Find similar

Air Canada

Feb 3

ORD8:00 amChicago O'Hare Intl

20h 10m

2 stops

ITM7:10 pmOsaka Itami

Feb 10

ITM4:00 pmOsaka Itami

18h 45m

2 stops

ORD7:45 pmChicago O'Hare Intl

$693

Find similar

Air Canada

Feb 3

ORD8:00 amChicago O'Hare Intl

20h 25m

2 stops

KIX7:25 pmOsaka Kansai Intl

Feb 10

KIX3:45 pmOsaka Kansai Intl

19h 00m

2 stops

ORD7:45 pmChicago O'Hare Intl

$750

Find similar

WestJet flights from Illinois to Japan

Our best WestJet deals on Illinois to Japan flight tickets

WestJet

Feb 23

ORD2:20 pmChicago O'Hare Intl

35h 10m

1 stop

NRT4:30 pmTokyo Narita

Mar 1

NRT6:35 pmTokyo Narita

34h 00m

1 stop

ORD1:35 pmChicago O'Hare Intl

$919

Find similar

WestJet

Dec 24

STL9:47 amLambert-St Louis

39h 43m

2 stops

NRT4:30 pmTokyo Narita

Dec 26

NRT6:35 pmTokyo Narita

18h 41m

2 stops

STL10:16 pmLambert-St Louis

$1,508

Find similar

WestJet

Dec 24

STL3:43 pmLambert-St Louis

33h 47m

2 stops

NRT4:30 pmTokyo Narita

Dec 26

NRT6:35 pmTokyo Narita

18h 41m

2 stops

STL10:16 pmLambert-St Louis

$1,558

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Sat 1/10

6:19 pm-4:00 pm

1 stop30h 41m

Tokyo Narita

Fri 1/23

6:30 pm-10:46 pm

1 stop19h 16m

$624

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Mon 2/23

4:05 pm-4:20 pm

2 stops33h 15m

Tokyo Narita

Thu 3/5

6:15 pm-3:29 pm

2 stops36h 14m

$642

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Mon 1/26

2:50 pm-4:00 pm

1 stop34h 10m

Tokyo Narita

Wed 2/4

6:30 pm-1:54 pm

1 stop34h 24m

$686

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-12:27 pm

1 stop33h 07m

$696

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Mon 2/23

5:14 am-6:30 pm

1 stop22h 16m

Tokyo Haneda

Thu 3/5

5:55 pm-10:54 pm

1 stop19h 59m

$697

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sun 2/22

7:00 am-6:30 pm

1 stop20h 30m

Tokyo Haneda

Sat 3/7

8:25 pm-11:48 pm

1 stop18h 23m

$698

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sun 2/22

6:00 pm-2:50 pm

2 stops29h 50m

Tokyo Haneda

Sat 3/7

9:15 pm-11:34 pm

2 stops17h 19m

$702

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Sun 2/22

6:00 am-3:30 pm

1 stop18h 30m

Tokyo Narita

Sat 3/7

5:00 pm-11:34 pm

2 stops21h 34m

$704

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Mon 1/26

2:50 pm-4:00 pm

1 stop34h 10m

Tokyo Narita

Mon 2/2

6:30 pm-1:54 pm

1 stop34h 24m

$713

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Mon 1/26

11:20 am-9:05 pm

1 stop18h 45m

Tokyo Haneda

Wed 2/4

10:25 am-12:29 pm

1 stop17h 04m

$731

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from Illinois to Japan

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Japan?

The month of September is, on average, the cheapest month to fly to Japan from Illinois, with most prices found around $988. If you aren’t able to travel to Japan during the month of September, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $1,052.

What is the cheapest day to depart on your flight to Japan?

On average, the least expensive day to fly to Japan from Illinois is on a Monday. momondo users have found tickets for Monday departures for as low as $1,112. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Illinois to Japan on a Saturday will generally be more expensive and average around $1,630. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Japan?

Flying to Japan from Illinois in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $1,089 when looking at flights departing in the afternoon. In the evening is when there is more demand to fly to Japan, so prices are often more expensive at around $1,639 per ticket.

What is the cheapest Illinois to Japan flight route?

Fly from Chicago O'Hare Intl to Tokyo Narita for the best Illinois - Japan flight prices

How far in advance should I book a flight to Japan?

You are more likely to see cheaper flights to Japan from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Japan for around $1,287 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Japan from Illinois for as low as $1,122 on momondo.

What cabin class options are available on Illinois to Japan flights?

There are 4 cabin classes available to choose from on Illinois to Japan flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Illinois to Japan flights?

You could potentially save up to 22% on your flight if you consider stops on a Illinois to Japan flight.

Cheap Illinois to Japan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Japan

Best Price Found	$520
Fastest flight time	12h 45m
Direct flights	Every day
Airports in Japan	202 airports

The best one-way flight to Japan from Illinois in the past 72 hours is $520. The best round-trip flight deal from Illinois to Japan found on momondo in the last 72 hours is $948.

The fastest flight from Illinois to Japan takes 12h 45m

Direct flights go from Illinois to Japan every day.

There are 202 airports in Japan. From Illinois there are direct flights to Tokyo Narita (NRT), Tokyo Haneda (HND).

Search flight deals

When did momondo last update prices for flights from Illinois to Japan?
Prices for flights from Illinois to Japan are refreshed on a daily basis.
How many operators does momondo search for flights from Illinois to Japan?
As of December 2025, there are 9 operators available to choose from for flights from Illinois to Japan.
How old do you have to be to fly from Illinois to Japan?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Japan.
What documentation or ID do you need to fly to Japan?
The travel and health documents you'll need for your trip to Japan may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Japan. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Illinois to Japan?
Based on momondo bookings for flights between Illinois and Japan, the leading plane model is Boeing 777-300ER, making up 42.55% of the total bookings. Other popular models include Boeing 787-10 Dreamliner with 32.84%, Boeing 777-300 with 23.23%, and Airbus A350-900 with 0.27%.

Best airlines flying from Illinois to Japan

Compare and see reviews for airlines that fly from Illinois to Japan with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $318	Free Cancellation	Rating 7.9 8,015 reviews	Search Delta flights
EVA Air	PriceFrom $648	Free Cancellation	Rating 8.4 1,298 reviews	Search EVA Air flights
Cathay Pacific	PriceFrom $709	Free Cancellation	Rating 7.6 1,102 reviews	Search Cathay Pacific flights
United Airlines	PriceFrom $781	Free Cancellation	Rating 7.4 9,102 reviews	Search United Airlines flights
Air Canada	PriceFrom $824	Free Cancellation	Rating 7.1 10,550 reviews	Search Air Canada flights
Hawaiian Airlines	PriceFrom $880	Free Cancellation	Rating 7.8 2,821 reviews	Search Hawaiian Airlines flights
ANA	PriceFrom $984	Free Cancellation	Rating 8.4 1,034 reviews	Search ANA flights
American Airlines	PriceFrom $1,010	Free Cancellation	Rating 7.2 11,051 reviews	Search American Airlines flights
Japan Airlines	PriceFrom $1,109	Free Cancellation	Rating 8.3 1,660 reviews	Search Japan Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Japan?

It is quick and easy to find Illinois to Japan flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Japan that suits you.

Can I find flights from Illinois to Japan with flexible booking policies on momondo?

Flights from Illinois to Japan with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Illinois to Japan?

momondo provides multiple filters to help you find the best flight to Japan from Illinois. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Illinois to Japan right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Illinois to Japan flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to Japan

Popular cities in Japan

Flights to Tokyofrom $458

Flights to Osakafrom $542

Flights to Okinawafrom $587

Flights to Fukuokafrom $577

Flights to Nagoyafrom $553

Flights to Hiroshimafrom $580

Flights to Ishigakifrom $1,017

Flights to Kagoshimafrom $834

Flights to Hakodatefrom $721

Flights to Toyamafrom $785

Flights to Sendaifrom $668

Flights to Miyakojimafrom $2,052

Cheap flights from Illinois to Japan from $347

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Japan departing on 2/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

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Find the cheapest flights from Illinois to Japan

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Air Canada flights from Illinois to Japan

Our best Air Canada deals on Illinois to Japan flight tickets

WestJet flights from Illinois to Japan

Our best WestJet deals on Illinois to Japan flight tickets

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

See travel insights to Japan from

How to get the cheapest flight ticket from Illinois to Japan

What is the cheapest month to fly to Japan?

What is the cheapest day to depart on your flight to Japan?

What is the cheapest time of day to depart on your flight to Japan?

What is the cheapest Illinois to Japan flight route?

Fly from Chicago O'Hare Intl to Tokyo Narita for the best Illinois - Japan flight prices

How far in advance should I book a flight to Japan?

What cabin class options are available on Illinois to Japan flights?

There are 4 cabin classes available to choose from on Illinois to Japan flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Illinois to Japan flights?

You could potentially save up to 22% on your flight if you consider stops on a Illinois to Japan flight.

What is the cheapest airline that flies from Illinois to Japan?

Air Canada, United Airlines, and Delta are the most popular carriers operating from Illinois to Japan

What airlines fly to Japan?

How many flights depart from Illinois to Japan on average per day?

As of December 2025, there are 15 flights per day flying from Illinois to Japan. The most common time of day flights depart is 10:00AM, with 59% of flights taking off in the afternoon.

How many flights depart from Illinois to Japan on average per week?

As of December 2025, there are 105 flights per week flying from Illinois to Japan. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.

Cheap Illinois to Japan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Japan

Best Price Found

Fastest flight time

Direct flights

Airports in Japan

When did momondo last update prices for flights from Illinois to Japan?

How many operators does momondo search for flights from Illinois to Japan?

How old do you have to be to fly from Illinois to Japan?

What documentation or ID do you need to fly to Japan?

What is the most popular plane model from Illinois to Japan?

Best airlines flying from Illinois to Japan

Compare and see reviews for airlines that fly from Illinois to Japan with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Japan?

Can I find flights from Illinois to Japan with flexible booking policies on momondo?

How can momondo help me find flights from Illinois to Japan?

I’m not ready to book a flight from Illinois to Japan right now. Can momondo alert me if prices change?

An easier way to manage your Japan trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Japan

Popular cities in Japan

Popular flights according to clicks in the last 7 days on momondo