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 30% 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.

$454 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

6:15 pm - 6:08 pmNRT Tokyo Narita-STL Lambert-St Louis

38h 53m2 stops Vancouver Intl Chicago O'Hare Intl

$925Air Canada

Tue, Jan 12 - Thu, Jan 21

5:25 am - 4:40 pmSTL Lambert-St Louis-NRT Tokyo Narita

20h 15m2 stops Chicago O'Hare Intl Vancouver Intl

6:45 pm - 12:13 pmNRT Tokyo Narita-STL Lambert-St Louis

32h 28m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$925Air Canada

Sun, Jan 17 - Tue, Feb 2

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

37h 20m2 stops Toronto Pearson Intl Tokyo Narita

7:25 pm - 3:26 pmKIX Osaka Kansai Intl-STL Lambert-St Louis

35h 01m2 stops Vancouver Intl Toronto Pearson Intl

$956Multiple Airlines

Wed, Feb 3 - Wed, Feb 17

6:44 pm - 3:05 pmSTL Lambert-St Louis-NRT Tokyo Narita

29h 21m2 stops Atlanta Hartsfield-Jackson Houston George Bush Intcntl

9:25 pm - 12:33 pmNRT Tokyo Narita-STL Lambert-St Louis

30h 08m2 stops San Francisco Las Vegas Harry Reid Intl

$1,006Multiple Airlines

Wed, Nov 4 - Wed, Nov 18

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

$1,076ANA

Fri, Feb 5 - Fri, Feb 19

9:04 am - 3:25 pmSTL Lambert-St Louis-HND Tokyo Haneda

16h 21m1 stop Chicago O'Hare Intl

10:25 am - 2:29 pmHND Tokyo Haneda-STL Lambert-St Louis

18h 04m1 stop Chicago O'Hare Intl

$1,086ANA

Mon, Oct 19 - Fri, Oct 30

8:50 am - 9:10 pmSTL Lambert-St Louis-HND Tokyo Haneda

21h 20m2 stops Denver Intl Los Angeles

10:25 am - 10:32 amHND Tokyo Haneda-STL Lambert-St Louis

15h 07m1 stop Chicago O'Hare Intl

$1,089United Airlines

Tue, Nov 17 - Tue, Nov 24

8:30 am - 3:55 pmSTL Lambert-St Louis-HND Tokyo Haneda

17h 25m1 stop Washington, D.C. Dulles Intl

5:15 pm - 9:21 pmHND Tokyo Haneda-STL Lambert-St Louis

18h 06m1 stop Chicago O'Hare Intl

$1,089United Airlines

Sun, Oct 11 - Fri, Oct 23

10:35 am - 5:45 pmSTL Lambert-St Louis-HND Tokyo Haneda

16h 10m1 stop Detroit Metropolitan Wayne County

5:35 pm - 8:29 pmHND Tokyo Haneda-STL Lambert-St Louis

17h 54m1 stop Detroit Metropolitan Wayne County

$1,089Delta

Sun, Nov 1 - Thu, Nov 12

6:47 am - 4:15 pmSTL Lambert-St Louis-HND Tokyo Haneda

19h 28m1 stop Detroit Metropolitan Wayne County

5:20 pm - 4:31 pmHND Tokyo Haneda-STL Lambert-St Louis

14h 11m1 stop Minneapolis St Paul

$1,089Delta

Wed, Oct 21 - Thu, Nov 19

Cheap last minute flights

Enter your travel dates to find the best prices.

6:40 am - 4:15 pmSTL Lambert-St Louis-HND Tokyo Haneda

19h 35m1 stop Detroit Metropolitan Wayne County

6:25 pm - 8:51 pmHND Tokyo Haneda-STL Lambert-St Louis

16h 26m1 stop Detroit Metropolitan Wayne County

$1,111Delta

Thu, Oct 1 - Sat, Oct 17

10:29 am - 4:15 pmSTL Lambert-St Louis-HND Tokyo Haneda

15h 46m1 stop Detroit Metropolitan Wayne County

4:05 pm - 11:21 pmHND Tokyo Haneda-STL Lambert-St Louis

21h 16m1 stop Minneapolis St Paul

$1,111Delta

Thu, Oct 1 - Sat, Oct 17

7:27 am - 6:50 amSTL Lambert-St Louis-NRT Tokyo Narita

33h 23m2 stops Chicago O'Hare Intl Hong Kong Intl

10:00 pm - 11:59 pmNRT Tokyo Narita-STL Lambert-St Louis

39h 59m2 stops Hong Kong Intl Seattle/Tacoma Intl

$1,167Multiple Airlines

Sun, Oct 4 - Sun, Oct 18

7:27 am - 6:50 amSTL Lambert-St Louis-NRT Tokyo Narita

33h 23m2 stops Chicago O'Hare Intl Hong Kong Intl

10:00 pm - 11:59 pmNRT Tokyo Narita-STL Lambert-St Louis

39h 59m2 stops Hong Kong Intl Seattle/Tacoma Intl

$1,176Multiple Airlines

Sun, Oct 4 - Sun, Oct 18

7:08 am - 3:00 pmSTL Lambert-St Louis-NRT Tokyo Narita

17h 52m1 stop San Francisco

4:30 pm - 8:36 pmNRT Tokyo Narita-STL Lambert-St Louis

18h 06m1 stop Denver Intl

$1,209United Airlines

Sun, Oct 4 - Tue, Oct 13

7:08 am - 3:00 pmSTL Lambert-St Louis-NRT Tokyo Narita

17h 52m1 stop San Francisco

5:25 pm - 9:09 pmNRT Tokyo Narita-STL Lambert-St Louis

17h 44m1 stop Newark

$1,209United Airlines

Sun, Oct 4 - Wed, Oct 14

4:50 pm - 2:30 pmSTL Lambert-St Louis-NRT Tokyo Narita

31h 40m1 stop Newark

5:25 pm - 8:48 amNRT Tokyo Narita-STL Lambert-St Louis

29h 23m1 stop Newark

$1,373ANA

Sun, Oct 4 - Sun, Oct 18

7:08 am - 3:00 pmSTL Lambert-St Louis-NRT Tokyo Narita

17h 52m1 stop San Francisco

4:30 pm - 11:44 pmNRT Tokyo Narita-STL Lambert-St Louis

21h 14m1 stop Denver Intl

$1,421ANA

Sun, Oct 4 - Sun, Oct 18

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

20h 00m2 stops Chicago O'Hare Intl Dallas/Fort Worth

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

17h 29m1 stop Dallas/Fort Worth

$1,489American Airlines

Sun, Oct 4 - Sun, Oct 18

2:40 pm - 3:25 pmSTL Lambert-St Louis-NRT Tokyo Narita

34h 45m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

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

38h 51m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$1,586Air Canada

Sun, Oct 4 - Sun, Oct 11

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ANA flights from St. Louis to Japan

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

ANA

Feb 5

STL4:05 pmLambert-St Louis

33h 25m

1 stop

NRT4:30 pmTokyo Narita

Feb 19

NRT6:45 pmTokyo Narita

35h 41m

1 stop

STL3:26 pmLambert-St Louis

$1,076

ANA

Oct 19

STL9:04 amLambert-St Louis

16h 21m

1 stop

HND3:25 pmTokyo Haneda

Oct 30

HND10:25 amTokyo Haneda

18h 04m

1 stop

STL2:29 pmLambert-St Louis

$1,086

ANA

Nov 3

STL1:08 pmLambert-St Louis

37h 37m

1 stop

HND5:45 pmTokyo Haneda

Nov 24

HND10:25 amTokyo Haneda

16h 45m

1 stop

STL12:10 pmLambert-St Louis

$1,087

Delta flights from St. Louis to Japan

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

Delta

Oct 19

STL6:47 amLambert-St Louis

19h 28m

1 stop

HND4:15 pmTokyo Haneda

Oct 30

HND5:20 pmTokyo Haneda

20h 01m

1 stop

STL11:21 pmLambert-St Louis

$1,089

Delta

Oct 14

STL7:00 amLambert-St Louis

17h 15m

1 stop

HND2:15 pmTokyo Haneda

Oct 28

HND5:35 pmTokyo Haneda

17h 16m

1 stop

STL8:51 pmLambert-St Louis

$1,090

Delta

Oct 19

STL7:20 pmLambert-St Louis

27h 45m

2 stops

HND1:05 pmTokyo Haneda

Oct 30

HND5:20 pmTokyo Haneda

20h 34m

2 stops

STL11:54 pmLambert-St Louis

$1,094

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 1/12

4:05 pm-4:40 pm

2 stops33h 35m

Tokyo Narita

Thu 1/21

6:15 pm-6:08 pm

2 stops38h 53m

$925

St. LouisTokyo

STL Lambert-St Louis - NRT Tokyo Narita

STLNRT

Lambert-St Louis

Sun 1/17

5:25 am-4:40 pm

2 stops20h 15m

Tokyo Narita

Tue 2/2

6:45 pm-12:13 pm

2 stops32h 28m

$925

St. LouisOsaka

STL Lambert-St Louis - KIX Osaka Kansai Intl

STLKIX

Lambert-St Louis

Wed 2/3

4:05 pm-8:25 pm

2 stops37h 20m

Osaka Kansai Intl

Wed 2/17

7:25 pm-3:26 pm

2 stops35h 01m

$956

St. LouisTokyo

STL Lambert-St Louis - NRT Tokyo Narita

STLNRT

Lambert-St Louis

Wed 11/4

6:44 pm-3:05 pm

2 stops29h 21m

Tokyo Narita

Wed 11/18

9:25 pm-12:33 pm

2 stops30h 08m

$1,006

St. LouisTokyo

STL Lambert-St Louis - NRT Tokyo Narita

STLNRT

Lambert-St Louis

Fri 2/5

4:05 pm-4:30 pm

1 stop33h 25m

Tokyo Narita

Fri 2/19

6:45 pm-3:26 pm

1 stop35h 41m

$1,076

St. LouisTokyo

STL Lambert-St Louis - HND Tokyo Haneda

STLHND

Lambert-St Louis

Mon 10/19

9:04 am-3:25 pm

1 stop16h 21m

Tokyo Haneda

Fri 10/30

10:25 am-2:29 pm

1 stop18h 04m

$1,086

St. LouisTokyo

STL Lambert-St Louis - HND Tokyo Haneda

STLHND

Lambert-St Louis

Tue 11/17

8:50 am-9:10 pm

2 stops21h 20m

Tokyo Haneda

Tue 11/24

10:25 am-10:32 am

1 stop15h 07m

$1,089

St. LouisTokyo

STL Lambert-St Louis - HND Tokyo Haneda

STLHND

Lambert-St Louis

Sun 10/11

8:30 am-3:55 pm

1 stop17h 25m

Tokyo Haneda

Fri 10/23

5:15 pm-9:21 pm

1 stop18h 06m

$1,089

St. LouisTokyo

STL Lambert-St Louis - HND Tokyo Haneda

STLHND

Lambert-St Louis

Sun 11/1

10:35 am-5:45 pm

1 stop16h 10m

Tokyo Haneda

Thu 11/12

5:35 pm-8:29 pm

1 stop17h 54m

$1,089

Quickest round-trip

St. LouisTokyo

STL Lambert-St Louis - HND Tokyo Haneda

STLHND

Lambert-St Louis

Wed 10/21

6:47 am-4:15 pm

1 stop19h 28m

Tokyo Haneda

Thu 11/19

5:20 pm-4:31 pm

1 stop14h 11m

$1,089

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 $835. 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 $945.

How far in advance should I book a flight from St. Louis to Japan?

You are more likely to see cheaper flights to Japan from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Japan for around $1,265 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Japan from St. Louis for as low as $672 on momondo.

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

You could potentially save up to 3% 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	$454
Fastest flight time	16h 45m
Direct flights	None

The best one-way flight to Japan from St. Louis in the past 72 hours is $454. The best round-trip flight deal from St. Louis to Japan found on momondo in the last 72 hours is $925.

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 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 11,701 reviews	Search Air Canada flights
United Airlines	PriceFrom $697	Free Cancellation	Rating 7.4 10,247 reviews	Search United Airlines flights
American Airlines	PriceFrom $697	Free Cancellation	Rating 7.0 12,098 reviews	Search American Airlines flights
Delta	PriceFrom $739	Free Cancellation	Rating 7.8 8,606 reviews	Search Delta flights
ANA	PriceFrom $785	Free Cancellation	Rating 8.3 1,319 reviews	Search ANA flights
Japan Airlines	PriceFrom $846	Free Cancellation	Rating 8.3 1,925 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.