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

ANA, United Airlines, and Turkish Airlines are the most popular carriers operating from Lambert-St Louis to Japan

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 31% 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.

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 October 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.

$542 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.

10:45 am - 4:30 pmSTL Lambert-St Louis-NRT Tokyo Narita

38h 45m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

6:45 pm - 9:12 pmNRT Tokyo Narita-STL Lambert-St Louis

41h 27m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$755Air Canada

Mon, Feb 1 - Tue, Feb 16

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

43h 00m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

6:15 pm - 6:18 pmNRT Tokyo Narita-STL Lambert-St Louis

39h 03m2 stops Vancouver Intl Chicago O'Hare Intl

$755Air Canada

Tue, Dec 1 - Wed, Dec 16

4:05 pm - 7:30 pmSTL Lambert-St Louis-KIX Osaka Kansai Intl

36h 25m2 stops Toronto Pearson Intl Tokyo Haneda

6:50 am - 3:26 pmKIX Osaka Kansai Intl-STL Lambert-St Louis

47h 36m2 stops Tokyo Haneda Toronto Pearson Intl

$772Multiple Airlines

Mon, Jan 11 - Fri, Jan 15

10:50 am - 8:55 amSTL Lambert-St Louis-FUK Fukuoka

31h 05m2 stops Chicago O'Hare Intl Tokyo Haneda

8:50 pm - 2:16 pmFUK Fukuoka-STL Lambert-St Louis

32h 26m2 stops Tokyo Haneda Houston George Bush Intcntl

$797ANA

Mon, Dec 7 - Mon, Dec 14

1:18 pm - 6:40 pmSTL Lambert-St Louis-NGO Nagoya Chubu Centrair Intl

38h 22m2 stops Chicago O'Hare Intl Tokyo Narita

7:25 am - 6:16 pmNGO Nagoya Chubu Centrair Intl-STL Lambert-St Louis

25h 51m2 stops Tokyo Haneda Chicago O'Hare Intl

$797ANA

Tue, Dec 8 - Tue, Dec 15

8:00 am - 9:10 pmSTL Lambert-St Louis-HND Tokyo Haneda

22h 10m1 stop Chicago O'Hare Intl

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

20h 20m1 stop Newark

$807United Airlines

Sun, Feb 14 - Tue, Feb 16

6:01 am - 3:05 pmSTL Lambert-St Louis-HND Tokyo Haneda

18h 04m1 stop Los Angeles

6:00 pm - 11:56 pmHND Tokyo Haneda-STL Lambert-St Louis

20h 56m1 stop Los Angeles

$809American Airlines

Mon, Feb 1 - Wed, Feb 17

5:29 am - 3:30 pmSTL Lambert-St Louis-NRT Tokyo Narita

19h 01m1 stop Dallas/Fort Worth

5:30 pm - 7:36 pmNRT Tokyo Narita-STL Lambert-St Louis

17h 06m1 stop Dallas/Fort Worth

$811American Airlines

Mon, Feb 1 - Wed, Feb 17

7:30 am - 3:15 pmSTL Lambert-St Louis-NRT Tokyo Narita

16h 45m1 stop Chicago O'Hare Intl

6:00 pm - 6:18 pmNRT Tokyo Narita-STL Lambert-St Louis

15h 18m1 stop Chicago O'Hare Intl

$812United Airlines

Wed, Nov 25 - Thu, Dec 17

4:05 pm - 8:25 pmSTL Lambert-St Louis-KIX Osaka Kansai Intl

37h 20m2 stops Toronto Pearson Intl Tokyo Narita

7:25 pm - 5:13 pmKIX Osaka Kansai Intl-STL Lambert-St Louis

36h 48m2 stops Vancouver Intl Chicago O'Hare Intl

$836Multiple Airlines

Sun, Jan 24 - Sat, Feb 6

Cheap last minute flights

Enter your travel dates to find the best prices.

6:50 pm - 2:50 pmSTL Lambert-St Louis-HND Tokyo Haneda

29h 00m2 stops Chicago O'Hare Intl San Francisco

6:20 pm - 9:40 pmHND Tokyo Haneda-STL Lambert-St Louis

18h 20m1 stop Chicago O'Hare Intl

$816United Airlines

Sun, Nov 1 - Thu, Nov 12

5:55 pm - 2:50 pmSTL Lambert-St Louis-HND Tokyo Haneda

29h 55m2 stops Houston George Bush Intcntl San Francisco

6:25 pm - 8:59 pmHND Tokyo Haneda-STL Lambert-St Louis

17h 34m2 stops San Francisco Denver Intl

$816United Airlines

Sun, Nov 1 - Thu, Nov 12

7:05 pm - 3:05 pmSTL Lambert-St Louis-NRT Tokyo Narita

29h 00m1 stop San Francisco

4:55 pm - 6:05 pmNRT Tokyo Narita-STL Lambert-St Louis

16h 10m1 stop San Francisco

$867ANA

Sun, Nov 1 - Thu, Nov 12

6:50 pm - 3:05 pmSTL Lambert-St Louis-NRT Tokyo Narita

29h 15m2 stops Chicago O'Hare Intl San Francisco

4:55 pm - 6:05 pmNRT Tokyo Narita-STL Lambert-St Louis

16h 10m1 stop San Francisco

$869ANA

Sun, Nov 1 - Thu, Nov 12

6:04 am - 9:25 pmSTL Lambert-St Louis-NGO Nagoya Chubu Centrair Intl

25h 21m2 stops Los Angeles Tokyo Haneda

2:25 pm - 11:33 pmNGO Nagoya Chubu Centrair Intl-STL Lambert-St Louis

24h 08m2 stops Tokyo Narita Dallas/Fort Worth

$898American Airlines

Sat, Oct 31 - Fri, Nov 6

6:04 am - 3:05 pmSTL Lambert-St Louis-HND Tokyo Haneda

19h 01m1 stop Los Angeles

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

17h 42m1 stop Los Angeles

$926American Airlines

Fri, Oct 30 - Tue, Nov 10

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

57h 25m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

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

35h 41m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

$931Air Canada

Sun, Nov 1 - Thu, Nov 12

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

57h 25m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

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

35h 41m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

$1,038Air Canada

Sun, Nov 1 - Thu, Nov 12

7:02 am - 6:30 amSTL Lambert-St Louis-NRT Tokyo Narita

33h 28m2 stops Seattle/Tacoma Intl Hong Kong Intl

9:35 pm - 4:40 pmNRT Tokyo Narita-STL Lambert-St Louis

34h 05m2 stops Hong Kong Intl Seattle/Tacoma Intl

$1,202Cathay Pacific

Thu, Oct 29 - Tue, Dec 1

11:32 am - 1:10 pmSTL Lambert-St Louis-NRT Tokyo Narita

35h 38m2 stops Chicago O'Hare Intl Hong Kong Intl

4:50 pm - 4:40 pmNRT Tokyo Narita-STL Lambert-St Louis

38h 50m2 stops Hong Kong Intl Seattle/Tacoma Intl

$1,202Cathay Pacific

Wed, Oct 28 - Tue, Dec 1

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

ANA flights from St. Louis to Japan

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

ANA

Dec 7

STL10:50 amLambert-St Louis

31h 05m

2 stops

FUK8:55 amFukuoka

Dec 14

FUK8:50 pmFukuoka

32h 26m

2 stops

STL2:16 pmLambert-St Louis

$797

ANA

Dec 7

STL6:30 amLambert-St Louis

21h 10m

2 stops

NGO6:40 pmNagoya Chubu Centrair Intl

Dec 14

NGO2:00 pmNagoya Chubu Centrair Intl

37h 22m

2 stops

STL12:22 pmLambert-St Louis

$820

ANA

Jan 19

STL6:15 amLambert-St Louis

18h 15m

1 stop

NRT3:30 pmTokyo Narita

Feb 12

NRT5:05 pmTokyo Narita

34h 01m

1 stop

STL12:06 pmLambert-St Louis

$826

Cathay Pacific flights from St. Louis to Japan

Our best Cathay Pacific deals on St. Louis to Japan flight tickets

Cathay Pacific

Apr 9

STL12:27 pmLambert-St Louis

28h 13m

2 stops

KIX6:40 amOsaka Kansai Intl

Apr 14

KIX9:05 amOsaka Kansai Intl

27h 59m

2 stops

STL11:04 pmLambert-St Louis

$1,153

Cathay Pacific

Oct 28

STL11:32 amLambert-St Louis

35h 38m

2 stops

NRT1:10 pmTokyo Narita

Dec 1

NRT4:50 pmTokyo Narita

38h 50m

2 stops

STL4:40 pmLambert-St Louis

$1,202

Cathay Pacific

Oct 30

STL11:31 amLambert-St Louis

28h 59m

2 stops

NRT6:30 amTokyo Narita

Nov 10

NRT4:50 pmTokyo Narita

42h 29m

2 stops

STL8:19 pmLambert-St Louis

$1,252

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisTokyo

STL Lambert-St Louis - NRT Tokyo Narita

STLNRT

Lambert-St Louis

Mon 2/1

10:45 am-4:30 pm

2 stops38h 45m

Tokyo Narita

Tue 2/16

6:45 pm-9:12 pm

2 stops41h 27m

$755

St. LouisTokyo

STL Lambert-St Louis - NRT Tokyo Narita

STLNRT

Lambert-St Louis

Tue 12/1

6:30 am-4:30 pm

2 stops43h 00m

Tokyo Narita

Wed 12/16

6:15 pm-6:18 pm

2 stops39h 03m

$755

St. LouisOsaka

STL Lambert-St Louis - KIX Osaka Kansai Intl

STLKIX

Lambert-St Louis

Mon 1/11

4:05 pm-7:30 pm

2 stops36h 25m

Osaka Kansai Intl

Fri 1/15

6:50 am-3:26 pm

2 stops47h 36m

$772

St. LouisFukuoka

STL Lambert-St Louis - FUK Fukuoka

STLFUK

Lambert-St Louis

Mon 12/7

10:50 am-8:55 am

2 stops31h 05m

Fukuoka

Mon 12/14

8:50 pm-2:16 pm

2 stops32h 26m

$797

St. LouisNagoya

STL Lambert-St Louis - NGO Nagoya Chubu Centrair Intl

STLNGO

Lambert-St Louis

Tue 12/8

1:18 pm-6:40 pm

2 stops38h 22m

Nagoya Chubu Centrair Intl

Tue 12/15

7:25 am-6:16 pm

2 stops25h 51m

$797

St. LouisTokyo

STL Lambert-St Louis - HND Tokyo Haneda

STLHND

Lambert-St Louis

Sun 2/14

8:00 am-9:10 pm

1 stop22h 10m

Tokyo Haneda

Tue 2/16

4:25 pm-9:45 pm

1 stop20h 20m

$807

St. LouisTokyo

STL Lambert-St Louis - HND Tokyo Haneda

STLHND

Lambert-St Louis

Mon 2/1

6:01 am-3:05 pm

1 stop18h 04m

Tokyo Haneda

Wed 2/17

6:00 pm-11:56 pm

1 stop20h 56m

$809

St. LouisTokyo

STL Lambert-St Louis - NRT Tokyo Narita

STLNRT

Lambert-St Louis

Mon 2/1

5:29 am-3:30 pm

1 stop19h 01m

Tokyo Narita

Wed 2/17

5:30 pm-7:36 pm

1 stop17h 06m

$811

Quickest round-trip

St. LouisTokyo

STL Lambert-St Louis - NRT Tokyo Narita

STLNRT

Lambert-St Louis

Wed 11/25

7:30 am-3:15 pm

1 stop16h 45m

Tokyo Narita

Thu 12/17

6:00 pm-6:18 pm

1 stop15h 18m

$812

St. LouisOsaka

STL Lambert-St Louis - KIX Osaka Kansai Intl

STLKIX

Lambert-St Louis

Sun 1/24

4:05 pm-8:25 pm

2 stops37h 20m

Osaka Kansai Intl

Sat 2/6

7:25 pm-5:13 pm

2 stops36h 48m

$836

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 $933.

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	$542
Fastest flight time	16h 45m
Direct flights	None

The best one-way flight to Japan from St. Louis in the past 72 hours is $542. The best round-trip flight deal from St. Louis to Japan found on momondo in the last 72 hours is $755.

The fastest flight from St. Louis to Japan takes 16h 45m

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 October 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 11,815 reviews	Search Air Canada flights
United Airlines	PriceFrom $697	Free Cancellation	Rating 7.3 10,440 reviews	Search United Airlines flights
American Airlines	PriceFrom $697	Free Cancellation	Rating 7.0 12,190 reviews	Search American Airlines flights
Delta	PriceFrom $739	Free Cancellation	Rating 7.8 8,677 reviews	Search Delta flights
ANA	PriceFrom $785	Free Cancellation	Rating 8.3 1,336 reviews	Search ANA flights
Japan Airlines	PriceFrom $958	Free Cancellation	Rating 8.3 1,944 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.