What airlines fly to Japan?

United Airlines, ANA and Delta are the top three most popular airlines that fly to Japan from St. Louis according to our data. United Airlines is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Japan. Keep in mind that there are 6 different airlines that fly to Japan on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Lambert-St Louis to Japan?

Delta, Cathay Pacific, and United Airlines are the most popular carriers operating from Lambert-St Louis to Japan

When did momondo last update prices for flights from Lambert-St Louis Airport to Japan?

Prices for flights from Lambert-St Louis Airport to Japan were last updated today.

How many operators does momondo search for flights from Lambert-St Louis Airport to Japan?

There are 6 operators available for flights from Lambert-St Louis Airport to Japan as of November 2026.

How old do you have to be to fly from Lambert-St Louis Airport to Japan?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Japan.

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

The necessary travel and health documents for your Japan trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$529 Cheap Flights from St. Louis to Japan in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Japan

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

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 41m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

$776Air Canada

Tue, Jan 26 - Mon, Feb 1

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

59h 41m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

$776Air Canada

Sat, Feb 6 - Tue, Feb 16

10:45 am - 9:10 pmSTL Lambert-St Louis-HND Tokyo Haneda

19h 25m1 stop Chicago O'Hare Intl

6:20 pm - 6:19 pmHND Tokyo Haneda-STL Lambert-St Louis

14h 59m1 stop Chicago O'Hare Intl

$811ANA

Mon, Feb 1 - Wed, Feb 17

5:29 am - 6:25 pmSTL Lambert-St Louis-HND Tokyo Haneda

21h 56m1 stop Dallas/Fort Worth

6:00 pm - 11:59 pmHND Tokyo Haneda-STL Lambert-St Louis

20h 59m1 stop Los Angeles

$823American Airlines

Mon, Feb 1 - Fri, Feb 12

6:00 am - 3:05 pmSTL Lambert-St Louis-HND Tokyo Haneda

18h 05m1 stop Los Angeles

8:25 pm - 11:34 pmHND Tokyo Haneda-STL Lambert-St Louis

18h 09m1 stop Dallas/Fort Worth

$823American Airlines

Tue, Dec 1 - Tue, Dec 15

1:17 pm - 9:10 pmSTL Lambert-St Louis-HND Tokyo Haneda

16h 53m1 stop Chicago O'Hare Intl

10:25 am - 5:50 pmHND Tokyo Haneda-STL Lambert-St Louis

22h 25m1 stop Chicago O'Hare Intl

$824ANA

Tue, Feb 2 - Tue, Feb 9

5:25 am - 5:45 pmSTL Lambert-St Louis-HND Tokyo Haneda

21h 20m1 stop Chicago O'Hare Intl

6:20 pm - 6:16 pmHND Tokyo Haneda-STL Lambert-St Louis

14h 56m1 stop Chicago O'Hare Intl

$825United Airlines

Tue, Dec 8 - Wed, Dec 16

9:05 am - 5:45 pmSTL Lambert-St Louis-HND Tokyo Haneda

17h 40m1 stop Chicago O'Hare Intl

4:25 pm - 9:45 pmHND Tokyo Haneda-STL Lambert-St Louis

20h 20m1 stop Newark

$825United Airlines

Mon, Jan 11 - Thu, Feb 18

6:10 am - 2:35 pmSTL Lambert-St Louis-HND Tokyo Haneda

17h 25m1 stop Minneapolis St Paul

5:20 pm - 10:24 pmHND Tokyo Haneda-STL Lambert-St Louis

20h 04m1 stop Minneapolis St Paul

$825Delta

Mon, Feb 1 - Fri, Feb 12

6:10 am - 2:35 pmSTL Lambert-St Louis-HND Tokyo Haneda

17h 25m1 stop Minneapolis St Paul

5:35 pm - 8:53 pmHND Tokyo Haneda-STL Lambert-St Louis

18h 18m1 stop Detroit Metropolitan Wayne County

$825Delta

Wed, Jan 20 - Thu, Feb 11

Cheap last minute flights

Enter your travel dates to find the best prices.

6:00 am - 2:05 pmSTL Lambert-St Louis-HND Tokyo Haneda

17h 05m1 stop Atlanta Hartsfield-Jackson

4:50 pm - 11:56 pmHND Tokyo Haneda-STL Lambert-St Louis

22h 06m1 stop Atlanta Hartsfield-Jackson

$1,045Delta

Mon, Nov 9 - Mon, Nov 16

6:00 am - 5:45 pmSTL Lambert-St Louis-HND Tokyo Haneda

20h 45m2 stops Atlanta Hartsfield-Jackson Detroit Metropolitan Wayne County

5:35 pm - 11:56 pmHND Tokyo Haneda-STL Lambert-St Louis

21h 21m2 stops Detroit Metropolitan Wayne County Atlanta Hartsfield-Jackson

$1,049Delta

Mon, Nov 9 - Mon, Nov 16

5:55 pm - 4:45 pmSTL Lambert-St Louis-KIX Osaka Kansai Intl

31h 50m2 stops Houston George Bush Intcntl San Francisco

6:35 pm - 10:15 pmKIX Osaka Kansai Intl-STL Lambert-St Louis

18h 40m1 stop San Francisco

$1,121United Airlines

Fri, Nov 6 - Thu, Nov 19

7:05 pm - 4:45 pmSTL Lambert-St Louis-KIX Osaka Kansai Intl

30h 40m1 stop San Francisco

6:35 pm - 10:15 pmKIX Osaka Kansai Intl-STL Lambert-St Louis

18h 40m1 stop San Francisco

$1,124United Airlines

Fri, Nov 6 - Thu, Nov 19

7:30 am - 7:30 amSTL Lambert-St Louis-ITM Osaka Itami

33h 00m2 stops Chicago O'Hare Intl Tokyo Haneda

8:20 pm - 12:10 pmITM Osaka Itami-STL Lambert-St Louis

30h 50m2 stops Tokyo Haneda Chicago O'Hare Intl

$1,283ANA

Fri, Nov 6 - Thu, Nov 19

6:00 am - 8:25 amSTL Lambert-St Louis-KIX Osaka Kansai Intl

35h 25m2 stops Dallas/Fort Worth Tokyo Narita

2:40 pm - 11:58 pmKIX Osaka Kansai Intl-STL Lambert-St Louis

24h 18m2 stops Tokyo Haneda Los Angeles

$1,349Japan Airlines

Fri, Nov 6 - Thu, Nov 19

11:23 am - 7:50 pmSTL Lambert-St Louis-NGO Nagoya Chubu Centrair Intl

41h 27m2 stops Chicago O'Hare Intl Tokyo Narita

8:20 am - 4:46 pmNGO Nagoya Chubu Centrair Intl-STL Lambert-St Louis

23h 26m2 stops Tokyo Narita Chicago O'Hare Intl

$1,354Japan Airlines

Sat, Nov 7 - Sat, Nov 14

7:30 am - 9:25 amSTL Lambert-St Louis-OKA Okinawa Naha

34h 55m2 stops Chicago O'Hare Intl Tokyo Haneda

7:10 pm - 6:16 pmOKA Okinawa Naha-STL Lambert-St Louis

38h 06m2 stops Tokyo Haneda Chicago O'Hare Intl

$1,499ANA

Sun, Nov 8 - Mon, Nov 30

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

33h 25m2 stops Toronto Pearson 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

$1,611Air Canada

Mon, Nov 9 - Mon, Nov 16

6:00 am - 4:40 pmSTL Lambert-St Louis-NRT Tokyo Narita

19h 40m2 stops Chicago O'Hare Intl Vancouver 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

$13,091Air Canada

Sun, Nov 8 - Mon, Nov 9

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United Airlines flights from St. Louis to Japan

Our best United Airlines deals on St. Louis to Japan flight tickets

United Airlines

Feb 1

STL6:06 amLambert-St Louis

18h 09m

1 stop

NRT3:15 pmTokyo Narita

Feb 16

NRT5:15 pmTokyo Narita

19h 30m

1 stop

STL9:45 pmLambert-St Louis

$825

United Airlines

Feb 1

STL5:00 amLambert-St Louis

19h 35m

2 stops

NRT3:35 pmTokyo Narita

Feb 5

NRT5:30 pmTokyo Narita

20h 00m

2 stops

STL10:30 pmLambert-St Louis

$829

United Airlines

Feb 6

STL8:30 amLambert-St Louis

39h 35m

1 stop

NRT3:05 pmTokyo Narita

Feb 18

NRT4:55 pmTokyo Narita

16h 22m

1 stop

STL6:17 pmLambert-St Louis

$830

Delta flights from St. Louis to Japan

Our best Delta deals on St. Louis to Japan flight tickets

Delta

Jan 17

STL10:57 amLambert-St Louis

15h 48m

1 stop

HND5:45 pmTokyo Haneda

Feb 11

HND4:25 pmTokyo Haneda

16h 19m

1 stop

STL5:44 pmLambert-St Louis

$825

Delta

Jan 17

STL6:20 amLambert-St Louis

37h 40m

2 stops

OKA11:00 amOkinawa Naha

Jan 27

OKA12:00 pmOkinawa Naha

25h 45m

2 stops

STL10:45 pmLambert-St Louis

$827

Delta

Feb 1

STL5:45 pmLambert-St Louis

29h 50m

2 stops

HND2:35 pmTokyo Haneda

Feb 12

HND5:20 pmTokyo Haneda

21h 19m

2 stops

STL11:39 pmLambert-St Louis

$829

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisTokyo

STL Lambert-St Louis - NRT Tokyo Narita

STLNRT

Lambert-St Louis

Tue 1/26

4:05 pm-4:40 pm

2 stops33h 35m

Tokyo Narita

Mon 2/1

6:45 pm-3:26 pm

2 stops35h 41m

$776

St. LouisTokyo

STL Lambert-St Louis - NRT Tokyo Narita

STLNRT

Lambert-St Louis

Sat 2/6

4:05 pm-4:40 pm

2 stops33h 35m

Tokyo Narita

Tue 2/16

6:45 pm-3:26 pm

2 stops59h 41m

$776

Quickest round-trip

St. LouisTokyo

STL Lambert-St Louis - HND Tokyo Haneda

STLHND

Lambert-St Louis

Mon 2/1

10:45 am-9:10 pm

1 stop19h 25m

Tokyo Haneda

Wed 2/17

6:20 pm-6:19 pm

1 stop14h 59m

$811

St. LouisTokyo

STL Lambert-St Louis - HND Tokyo Haneda

STLHND

Lambert-St Louis

Mon 2/1

5:29 am-6:25 pm

1 stop21h 56m

Tokyo Haneda

Fri 2/12

6:00 pm-11:59 pm

1 stop20h 59m

$823

St. LouisTokyo

STL Lambert-St Louis - HND Tokyo Haneda

STLHND

Lambert-St Louis

Tue 12/1

6:00 am-3:05 pm

1 stop18h 05m

Tokyo Haneda

Tue 12/15

8:25 pm-11:34 pm

1 stop18h 09m

$823

St. LouisTokyo

STL Lambert-St Louis - HND Tokyo Haneda

STLHND

Lambert-St Louis

Tue 2/2

1:17 pm-9:10 pm

1 stop16h 53m

Tokyo Haneda

Tue 2/9

10:25 am-5:50 pm

1 stop22h 25m

$824

St. LouisTokyo

STL Lambert-St Louis - HND Tokyo Haneda

STLHND

Lambert-St Louis

Tue 12/8

5:25 am-5:45 pm

1 stop21h 20m

Tokyo Haneda

Wed 12/16

6:20 pm-6:16 pm

1 stop14h 56m

$825

St. LouisTokyo

STL Lambert-St Louis - HND Tokyo Haneda

STLHND

Lambert-St Louis

Mon 1/11

9:05 am-5:45 pm

1 stop17h 40m

Tokyo Haneda

Thu 2/18

4:25 pm-9:45 pm

1 stop20h 20m

$825

St. LouisTokyo

STL Lambert-St Louis - HND Tokyo Haneda

STLHND

Lambert-St Louis

Mon 2/1

6:10 am-2:35 pm

1 stop17h 25m

Tokyo Haneda

Fri 2/12

5:20 pm-10:24 pm

1 stop20h 04m

$825

St. LouisTokyo

STL Lambert-St Louis - HND Tokyo Haneda

STLHND

Lambert-St Louis

Wed 1/20

6:10 am-2:35 pm

1 stop17h 25m

Tokyo Haneda

Thu 2/11

5:35 pm-8:53 pm

1 stop18h 18m

$825

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from St. Louis 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

What is the cheapest month to fly to Japan?

The month of February is, on average, the cheapest month to fly to Japan from St. Louis, with most prices found around $850. If you aren’t able to travel to Japan during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $989.

Can stopping save me money on St. Louis to Japan flights?

You could potentially save up to 31% on your flight if you consider stops on a St. Louis to Japan flight.

Cheap St. Louis to Japan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Japan

Best Price Found	$529
Fastest flight time	15h 30m
Direct flights	None

The best one-way flight to Japan from St. Louis in the past 72 hours is $529. The best round-trip flight deal from St. Louis to Japan found on momondo in the last 72 hours is $776.

The fastest flight from St. Louis to Japan takes 15h 30m

There are no direct flights from St. Louis to Japan. There are no popular flight routes from St. Louis to Japan.

Search flight deals

Frequently asked questions about flying from St. Louis to Japan

When did momondo last update prices for flights from Lambert-St Louis Airport to Japan?
Prices for flights from Lambert-St Louis Airport to Japan were last updated today.
How many operators does momondo search for flights from Lambert-St Louis Airport to Japan?
There are 6 operators available for flights from Lambert-St Louis Airport to Japan as of November 2026.
How old do you have to be to fly from Lambert-St Louis Airport to Japan?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Japan.
What documentation or ID do you need to fly to Japan?
The necessary travel and health documents for your Japan trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from St. Louis to Japan

Compare and see reviews for airlines that fly from St. Louis to Japan with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom $667	Free Cancellation	Rating 7.1 11,846 reviews	Search Air Canada flights
United Airlines	PriceFrom $697	Free Cancellation	Rating 7.3 10,463 reviews	Search United Airlines flights
American Airlines	PriceFrom $697	Free Cancellation	Rating 7.0 12,223 reviews	Search American Airlines flights
Delta	PriceFrom $739	Free Cancellation	Rating 7.8 8,697 reviews	Search Delta flights
ANA	PriceFrom $785	Free Cancellation	Rating 8.3 1,338 reviews	Search ANA flights
Japan Airlines	PriceFrom $958	Free Cancellation	Rating 8.3 1,965 reviews	Search Japan Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Japan?

Finding the right flight to Japan from St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Japan quick and easy, saving you time and money.

Can I find flights from St. Louis to Japan with flexible booking policies on momondo?

momondo does allow users to show only those flights to Japan from St. Louis which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from St. Louis to Japan?

Once you have performed a search for St. Louis to Japan flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to Japan from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.