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

Japan Airlines, Delta, and Air Canada are the most popular carriers operating from Lambert-St Louis to Japan

What airlines fly to Japan?

United Airlines, Delta and ANA 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.

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 September 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.

$465 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 - 4:30 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

Sun, Feb 7 - Fri, Feb 19

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

$922Air Canada

Mon, Feb 1 - Wed, Feb 17

7:18 am - 9:05 pmSTL Lambert-St Louis-HND Tokyo Haneda

22h 47m1 stop Chicago O'Hare Intl

10:25 am - 4:53 pmHND Tokyo Haneda-STL Lambert-St Louis

21h 28m1 stop Chicago O'Hare Intl

$1,091ANA

Tue, Dec 29 - Fri, Jan 15

10:50 am - 9:05 pmSTL Lambert-St Louis-HND Tokyo Haneda

19h 15m1 stop Chicago O'Hare Intl

6:20 pm - 6:06 pmHND Tokyo Haneda-STL Lambert-St Louis

14h 46m1 stop Chicago O'Hare Intl

$1,091ANA

Tue, Jan 19 - Thu, Feb 18

8:40 am - 7:15 pmSTL Lambert-St Louis-HND Tokyo Haneda

19h 35m2 stops Denver Intl Seattle/Tacoma Intl

6:20 pm - 10:59 pmHND Tokyo Haneda-STL Lambert-St Louis

19h 39m1 stop Chicago O'Hare Intl

$1,102United Airlines

Mon, Nov 23 - Wed, Dec 2

8:00 am - 4:50 pmSTL Lambert-St Louis-HND Tokyo Haneda

17h 50m1 stop Washington, D.C. Dulles Intl

6:20 pm - 10:59 pmHND Tokyo Haneda-STL Lambert-St Louis

19h 39m1 stop Chicago O'Hare Intl

$1,102United Airlines

Mon, Nov 23 - Wed, Dec 2

10:21 am - 3:15 pmSTL Lambert-St Louis-FUK Fukuoka

37h 54m2 stops Dallas/Fort Worth Hong Kong Intl

4:35 pm - 11:59 pmFUK Fukuoka-STL Lambert-St Louis

46h 24m2 stops Hong Kong Intl Seattle/Tacoma Intl

$1,109Multiple Airlines

Wed, Nov 25 - Mon, Nov 30

5:17 am - 3:40 pmSTL Lambert-St Louis-NRT Tokyo Narita

19h 23m1 stop Dallas/Fort Worth

5:30 pm - 10:05 pmNRT Tokyo Narita-STL Lambert-St Louis

19h 35m1 stop Dallas/Fort Worth

$1,110American Airlines

Mon, Feb 1 - Wed, Feb 17

7:06 pm - 3:30 pmSTL Lambert-St Louis-NRT Tokyo Narita

29h 24m1 stop Dallas/Fort Worth

5:30 pm - 9:59 pmNRT Tokyo Narita-STL Lambert-St Louis

19h 29m1 stop Dallas/Fort Worth

$1,117American Airlines

Sun, Nov 15 - Thu, Dec 3

11:31 am - 6:30 amSTL Lambert-St Louis-NRT Tokyo Narita

28h 59m2 stops Chicago O'Hare Intl Hong Kong Intl

9:35 pm - 11:44 pmNRT Tokyo Narita-STL Lambert-St Louis

40h 09m2 stops Hong Kong Intl Seattle/Tacoma Intl

$1,119Multiple Airlines

Mon, Mar 15 - Mon, Mar 22

Cheap last minute flights

Enter your travel dates to find the best prices.

3:32 pm - 9:15 pmSTL Lambert-St Louis-HND Tokyo Haneda

15h 43m1 stop Chicago O'Hare Intl

5:15 pm - 7:41 pmHND Tokyo Haneda-STL Lambert-St Louis

16h 26m1 stop Chicago O'Hare Intl

$1,039ANA

Mon, Sep 21 - 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 - 8:20 pmNRT Tokyo Narita-STL Lambert-St Louis

16h 30m1 stop Toronto Pearson Intl

$1,050ANA

Wed, Sep 16 - Wed, Sep 23

8:00 am - 3:10 pmSTL Lambert-St Louis-NRT Tokyo Narita

17h 10m1 stop Chicago O'Hare Intl

5:00 pm - 9:21 pmNRT Tokyo Narita-STL Lambert-St Louis

18h 21m1 stop Chicago O'Hare Intl

$1,052United Airlines

Mon, Sep 21 - Wed, Sep 30

6:00 am - 2:45 pmSTL Lambert-St Louis-NRT Tokyo Narita

18h 45m2 stops Chicago O'Hare Intl Denver Intl

5:00 pm - 6:43 pmNRT Tokyo Narita-STL Lambert-St Louis

15h 43m1 stop San Francisco

$1,057United Airlines

Mon, Sep 21 - Wed, Sep 30

8:55 am - 4:10 pmSTL Lambert-St Louis-NRT Tokyo Narita

17h 15m1 stop Toronto Pearson Intl

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

38h 51m1 stop Montreal Pierre Elliott Trudeau Intl

$1,074Air Canada

Mon, Sep 21 - Fri, Sep 25

8:55 am - 4:10 pmSTL Lambert-St Louis-NRT Tokyo Narita

17h 15m1 stop Toronto Pearson Intl

5:50 pm - 10:59 pmNRT Tokyo Narita-STL Lambert-St Louis

19h 09m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$1,088Air Canada

Mon, Sep 21 - Fri, Sep 25

7:21 am - 5:30 pmSTL Lambert-St Louis-HND Tokyo Haneda

20h 09m1 stop Chicago O'Hare Intl

6:30 am - 11:30 pmHND Tokyo Haneda-STL Lambert-St Louis

31h 00m2 stops Osaka Itami Los Angeles Los Angeles

$1,181Japan Airlines

Mon, Sep 21 - Wed, Sep 30

7:21 am - 5:30 pmSTL Lambert-St Louis-HND Tokyo Haneda

20h 09m1 stop Chicago O'Hare Intl

8:40 pm - 11:30 pmHND Tokyo Haneda-STL Lambert-St Louis

40h 50m2 stops Osaka Kansai Intl Los Angeles Los Angeles

$1,182Japan Airlines

Mon, Sep 21 - Fri, Sep 25

11:01 am - 6:50 amSTL Lambert-St Louis-NRT Tokyo Narita

29h 49m2 stops Chicago O'Hare Intl Hong Kong Intl

6:30 pm - 11:59 pmNRT Tokyo Narita-STL Lambert-St Louis

43h 29m2 stops Hong Kong Intl Seattle/Tacoma Intl

$1,203Cathay Pacific

Wed, Sep 16 - Wed, Sep 23

11:01 am - 1:55 pmSTL Lambert-St Louis-HND Tokyo Haneda

36h 54m2 stops Chicago O'Hare Intl Hong Kong Intl

4:20 pm - 6:38 pmHND Tokyo Haneda-STL Lambert-St Louis

40h 18m2 stops Hong Kong Intl Seattle/Tacoma Intl

$1,256Cathay Pacific

Wed, Sep 16 - Wed, Sep 23

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Qatar Airways flights from St. Louis to Japan

Our best Qatar Airways deals on St. Louis to Japan flight tickets

Qatar Airways

Sep 22

STL1:25 pmLambert-St Louis

40h 10m

2 stops

NRT7:35 pmTokyo Narita

Sep 29

NRT5:25 pmTokyo Narita

35h 19m

2 stops

STL2:44 pmLambert-St Louis

$1,497

Qatar Airways

Feb 5

STL9:52 amLambert-St Louis

55h 33m

3 stops

FUK8:25 amFukuoka

Feb 13

FUK2:50 pmFukuoka

43h 51m

3 stops

STL7:41 pmLambert-St Louis

$1,564

Air Canada flights from St. Louis to Japan

Our best Air Canada deals on St. Louis to Japan flight tickets

Air Canada

Nov 30

STL4:05 pmLambert-St Louis

33h 25m

2 stops

NRT4:30 pmTokyo Narita

Dec 7

NRT6:45 pmTokyo Narita

35h 41m

2 stops

STL3:26 pmLambert-St Louis

$937

Air Canada

Dec 1

STL4:05 pmLambert-St Louis

33h 35m

2 stops

NRT4:40 pmTokyo Narita

Dec 8

NRT6:15 pmTokyo Narita

36h 11m

2 stops

STL3:26 pmLambert-St Louis

$940

Air Canada

Nov 23

STL1:08 pmLambert-St Louis

36h 32m

2 stops

NRT4:40 pmTokyo Narita

Dec 1

NRT6:45 pmTokyo Narita

35h 41m

2 stops

STL3:26 pmLambert-St Louis

$982

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisTokyo

STL Lambert-St Louis - NRT Tokyo Narita

STLNRT

Lambert-St Louis

Sun 2/7

4:05 pm-4:30 pm

1 stop33h 25m

Tokyo Narita

Fri 2/19

6:45 pm-3:26 pm

1 stop35h 41m

$922

St. LouisTokyo

STL Lambert-St Louis - NRT Tokyo Narita

STLNRT

Lambert-St Louis

Mon 2/1

4:05 pm-4:40 pm

2 stops33h 35m

Tokyo Narita

Wed 2/17

6:45 pm-3:26 pm

1 stop35h 41m

$922

St. LouisTokyo

STL Lambert-St Louis - HND Tokyo Haneda

STLHND

Lambert-St Louis

Tue 12/29

7:18 am-9:05 pm

1 stop22h 47m

Tokyo Haneda

Fri 1/15

10:25 am-4:53 pm

1 stop21h 28m

$1,091

Quickest round-trip

St. LouisTokyo

STL Lambert-St Louis - HND Tokyo Haneda

STLHND

Lambert-St Louis

Tue 1/19

10:50 am-9:05 pm

1 stop19h 15m

Tokyo Haneda

Thu 2/18

6:20 pm-6:06 pm

1 stop14h 46m

$1,091

St. LouisTokyo

STL Lambert-St Louis - HND Tokyo Haneda

STLHND

Lambert-St Louis

Mon 11/23

8:40 am-7:15 pm

2 stops19h 35m

Tokyo Haneda

Wed 12/2

6:20 pm-10:59 pm

1 stop19h 39m

$1,102

St. LouisTokyo

STL Lambert-St Louis - HND Tokyo Haneda

STLHND

Lambert-St Louis

Mon 11/23

8:00 am-4:50 pm

1 stop17h 50m

Tokyo Haneda

Wed 12/2

6:20 pm-10:59 pm

1 stop19h 39m

$1,102

St. LouisFukuoka

STL Lambert-St Louis - FUK Fukuoka

STLFUK

Lambert-St Louis

Wed 11/25

10:21 am-3:15 pm

2 stops37h 54m

Fukuoka

Mon 11/30

4:35 pm-11:59 pm

2 stops46h 24m

$1,109

St. LouisTokyo

STL Lambert-St Louis - NRT Tokyo Narita

STLNRT

Lambert-St Louis

Mon 2/1

5:17 am-3:40 pm

1 stop19h 23m

Tokyo Narita

Wed 2/17

5:30 pm-10:05 pm

1 stop19h 35m

$1,110

St. LouisTokyo

STL Lambert-St Louis - NRT Tokyo Narita

STLNRT

Lambert-St Louis

Sun 11/15

7:06 pm-3:30 pm

1 stop29h 24m

Tokyo Narita

Thu 12/3

5:30 pm-9:59 pm

1 stop19h 29m

$1,117

St. LouisTokyo

STL Lambert-St Louis - NRT Tokyo Narita

STLNRT

Lambert-St Louis

Mon 3/15

11:31 am-6:30 am

2 stops28h 59m

Tokyo Narita

Mon 3/22

9:35 pm-11:44 pm

2 stops40h 09m

$1,119

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 $864. 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 $898.

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

You could potentially save up to 15% 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	$465
Fastest flight time	15h 55m
Direct flights	None

The best one-way flight to Japan from St. Louis in the past 72 hours is $465. The best round-trip flight deal from St. Louis to Japan found on momondo in the last 72 hours is $922.

The fastest flight from St. Louis to Japan takes 15h 55m

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 September 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 11,635 reviews	Search Air Canada flights
United Airlines	PriceFrom $697	Free Cancellation	Rating 7.4 10,216 reviews	Search United Airlines flights
American Airlines	PriceFrom $697	Free Cancellation	Rating 7.1 12,062 reviews	Search American Airlines flights
Delta	PriceFrom $739	Free Cancellation	Rating 7.8 8,569 reviews	Search Delta flights
ANA	PriceFrom $785	Free Cancellation	Rating 8.3 1,315 reviews	Search ANA flights
Japan Airlines	PriceFrom $846	Free Cancellation	Rating 8.3 1,914 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.