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 29% 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?

United Airlines, Japan Airlines, and Delta 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 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.

$382 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.

3:11 pm - 9:15 pmSTL Lambert-St Louis-HND Tokyo Haneda

16h 04m1 stop Chicago O'Hare Intl

10:25 am - 12:10 pmHND Tokyo Haneda-STL Lambert-St Louis

15h 45m1 stop Chicago O'Hare Intl

$915ANA

Mon, Oct 19 - Fri, Oct 30

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

$917Air Canada

Sun, Jan 17 - Tue, Feb 2

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

33h 25m1 stop Toronto Pearson Intl

6:45 pm - 9:47 pmNRT Tokyo Narita-STL Lambert-St Louis

42h 02m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$921Air Canada

Sun, Jan 17 - Tue, Feb 2

3:11 pm - 9:15 pmSTL Lambert-St Louis-HND Tokyo Haneda

16h 04m1 stop Chicago O'Hare Intl

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

18h 04m1 stop Chicago O'Hare Intl

$926ANA

Mon, Oct 19 - Fri, Oct 30

8:29 am - 6:25 pmSTL Lambert-St Louis-HND Tokyo Haneda

18h 56m1 stop Dallas/Fort Worth

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

17h 42m1 stop Los Angeles

$928American Airlines

Sun, Nov 1 - Thu, Nov 12

3:11 pm - 9:15 pmSTL Lambert-St Louis-HND Tokyo Haneda

16h 04m1 stop Chicago O'Hare Intl

10:45 am - 10:26 pmHND Tokyo Haneda-STL Lambert-St Louis

25h 41m1 stop Houston George Bush Intcntl

$930United Airlines

Mon, Oct 19 - Fri, Oct 30

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

21h 45m2 stops Chicago O'Hare Intl Vancouver Intl

4:25 pm - 9:52 pmHND Tokyo Haneda-STL Lambert-St Louis

20h 27m1 stop Newark

$930United Airlines

Wed, Nov 18 - Wed, Nov 25

6:47 am - 5:45 pmSTL Lambert-St Louis-HND Tokyo Haneda

19h 58m1 stop Detroit Metropolitan Wayne County

4:50 pm - 6:13 pmHND Tokyo Haneda-STL Lambert-St Louis

16h 23m1 stop Atlanta Hartsfield-Jackson

$930Delta

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 - 11:21 pmHND Tokyo Haneda-STL Lambert-St Louis

20h 01m1 stop Minneapolis St Paul

$930Delta

Mon, Oct 19 - Fri, Oct 30

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

19h 01m1 stop Los Angeles

8:25 pm - 9:59 pmHND Tokyo Haneda-STL Lambert-St Louis

16h 34m1 stop Dallas/Fort Worth

$978American Airlines

Fri, Oct 30 - Fri, Nov 6

Cheap last minute flights

Enter your travel dates to find the best prices.

8:00 am - 3:25 pmSTL Lambert-St Louis-HND Tokyo Haneda

17h 25m1 stop Chicago O'Hare Intl

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

16h 26m1 stop Chicago O'Hare Intl

$1,056ANA

Mon, Oct 5 - Mon, Oct 19

7:08 am - 1:55 pmSTL Lambert-St Louis-HND Tokyo Haneda

16h 47m1 stop San Francisco

3:45 pm - 7:21 pmHND Tokyo Haneda-STL Lambert-St Louis

17h 36m1 stop Washington, D.C. Dulles Intl

$1,060United Airlines

Mon, Oct 5 - Sun, Oct 11

7:08 am - 1:55 pmSTL Lambert-St Louis-HND Tokyo Haneda

16h 47m1 stop San Francisco

12:30 am - 12:40 pmHND Tokyo Haneda-STL Lambert-St Louis

26h 10m2 stops Los Angeles Denver Intl

$1,060United Airlines

Mon, Oct 5 - Sat, Oct 10

8:00 am - 3:25 pmSTL Lambert-St Louis-HND Tokyo Haneda

17h 25m1 stop Chicago O'Hare Intl

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

16h 26m1 stop Chicago O'Hare Intl

$1,097ANA

Mon, Oct 5 - Mon, Oct 19

7:05 am - 2:15 pmSTL Lambert-St Louis-HND Tokyo Haneda

17h 10m1 stop Atlanta Hartsfield-Jackson

4:35 pm - 12:44 amHND Tokyo Haneda-STL Lambert-St Louis

22h 09m2 stops Los Angeles Salt Lake City

$1,105Delta

Mon, Oct 5 - Mon, Oct 19

6:54 pm - 1:05 pmSTL Lambert-St Louis-HND Tokyo Haneda

28h 11m2 stops Atlanta Hartsfield-Jackson Minneapolis St Paul

4:35 pm - 12:44 amHND Tokyo Haneda-STL Lambert-St Louis

22h 09m2 stops Los Angeles Salt Lake City

$1,105Delta

Mon, Oct 5 - Mon, Oct 19

1:06 pm - 1:40 pmSTL Lambert-St Louis-NRT Tokyo Narita

34h 34m2 stops Chicago O'Hare Intl Hong Kong Intl

5:15 pm - 11:59 pmNRT Tokyo Narita-STL Lambert-St Louis

44h 44m2 stops Hong Kong Intl Seattle/Tacoma Intl

$1,255Cathay Pacific

Mon, Oct 5 - Mon, Oct 19

6:32 am - 2:20 pmSTL Lambert-St Louis-HND Tokyo Haneda

17h 48m1 stop Dallas/Fort Worth

8:40 pm - 11:46 pmHND Tokyo Haneda-STL Lambert-St Louis

41h 06m2 stops Osaka Kansai Intl Los Angeles

$1,360Japan Airlines

Wed, Oct 7 - Fri, Oct 9

7:02 am - 1:40 pmSTL Lambert-St Louis-NRT Tokyo Narita

40h 38m2 stops Seattle/Tacoma 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

$1,366Cathay Pacific

Mon, Oct 5 - Mon, Oct 19

7:10 pm - 2:20 pmSTL Lambert-St Louis-HND Tokyo Haneda

29h 10m1 stop Dallas/Fort Worth

7:45 pm - 11:46 pmHND Tokyo Haneda-STL Lambert-St Louis

18h 01m1 stop Los Angeles

$1,424Japan Airlines

Mon, Oct 5 - Mon, Oct 19

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ANA flights from St. Louis to Japan

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

ANA

Oct 19

STL3:11 pmLambert-St Louis

16h 04m

1 stop

HND9:15 pmTokyo Haneda

Oct 30

HND10:25 amTokyo Haneda

15h 45m

1 stop

STL12:10 pmLambert-St Louis

$915

ANA

Oct 19

STL3:11 pmLambert-St Louis

16h 04m

1 stop

HND9:15 pmTokyo Haneda

Oct 30

HND10:25 amTokyo Haneda

18h 04m

1 stop

STL2:29 pmLambert-St Louis

$926

ANA

Nov 1

STL6:15 amLambert-St Louis

18h 15m

1 stop

NRT3:30 pmTokyo Narita

Nov 12

NRT5:05 pmTokyo Narita

32h 27m

1 stop

STL10:32 amLambert-St Louis

$933

Cathay Pacific flights from St. Louis to Japan

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

Cathay Pacific

Oct 29

STL11:32 amLambert-St Louis

36h 38m

2 stops

NGO2:10 pmNagoya Chubu Centrair Intl

Nov 16

NGO4:40 pmNagoya Chubu Centrair Intl

39h 03m

3 stops

STL4:43 pmLambert-St Louis

$1,198

Cathay Pacific

Oct 12

STL7:02 amLambert-St Louis

48h 13m

2 stops

NGO9:15 pmNagoya Chubu Centrair Intl

Oct 19

NGO4:10 pmNagoya Chubu Centrair Intl

45h 49m

2 stops

STL11:59 pmLambert-St Louis

$1,221

Cathay Pacific

Oct 29

STL6:04 amLambert-St Louis

43h 31m

3 stops

NGO3:35 pmNagoya Chubu Centrair Intl

Nov 16

NGO4:40 pmNagoya Chubu Centrair Intl

39h 03m

3 stops

STL4:43 pmLambert-St Louis

$1,222

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

St. LouisTokyo

STL Lambert-St Louis - HND Tokyo Haneda

STLHND

Lambert-St Louis

Mon 10/19

3:11 pm-9:15 pm

1 stop16h 04m

Tokyo Haneda

Fri 10/30

10:25 am-12:10 pm

1 stop15h 45m

$915

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

$917

St. LouisTokyo

STL Lambert-St Louis - NRT Tokyo Narita

STLNRT

Lambert-St Louis

Sun 1/17

4:05 pm-4:30 pm

1 stop33h 25m

Tokyo Narita

Tue 2/2

6:45 pm-9:47 pm

2 stops42h 02m

$921

St. LouisTokyo

STL Lambert-St Louis - HND Tokyo Haneda

STLHND

Lambert-St Louis

Mon 10/19

3:11 pm-9:15 pm

1 stop16h 04m

Tokyo Haneda

Fri 10/30

10:25 am-2:29 pm

1 stop18h 04m

$926

St. LouisTokyo

STL Lambert-St Louis - HND Tokyo Haneda

STLHND

Lambert-St Louis

Sun 11/1

8:29 am-6:25 pm

1 stop18h 56m

Tokyo Haneda

Thu 11/12

6:00 pm-8:42 pm

1 stop17h 42m

$928

St. LouisTokyo

STL Lambert-St Louis - HND Tokyo Haneda

STLHND

Lambert-St Louis

Mon 10/19

3:11 pm-9:15 pm

1 stop16h 04m

Tokyo Haneda

Fri 10/30

10:45 am-10:26 pm

1 stop25h 41m

$930

St. LouisTokyo

STL Lambert-St Louis - HND Tokyo Haneda

STLHND

Lambert-St Louis

Wed 11/18

6:00 am-6:45 pm

2 stops21h 45m

Tokyo Haneda

Wed 11/25

4:25 pm-9:52 pm

1 stop20h 27m

$930

St. LouisTokyo

STL Lambert-St Louis - HND Tokyo Haneda

STLHND

Lambert-St Louis

Sun 11/1

6:47 am-5:45 pm

1 stop19h 58m

Tokyo Haneda

Thu 11/12

4:50 pm-6:13 pm

1 stop16h 23m

$930

St. LouisTokyo

STL Lambert-St Louis - HND Tokyo Haneda

STLHND

Lambert-St Louis

Mon 10/19

6:47 am-4:15 pm

1 stop19h 28m

Tokyo Haneda

Fri 10/30

5:20 pm-11:21 pm

1 stop20h 01m

$930

St. LouisTokyo

STL Lambert-St Louis - HND Tokyo Haneda

STLHND

Lambert-St Louis

Fri 10/30

6:04 am-3:05 pm

1 stop19h 01m

Tokyo Haneda

Fri 11/6

8:25 pm-9:59 pm

1 stop16h 34m

$978

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 $1,282 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 $916 on momondo.

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

You could potentially save up to 21% 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	$382
Fastest flight time	16h 04m
Direct flights	None

The best one-way flight to Japan from St. Louis in the past 72 hours is $382. The best round-trip flight deal from St. Louis to Japan found on momondo in the last 72 hours is $915.

The fastest flight from St. Louis to Japan takes 16h 04m

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 11,716 reviews	Search Air Canada flights
United Airlines	PriceFrom $697	Free Cancellation	Rating 7.4 10,285 reviews	Search United Airlines flights
American Airlines	PriceFrom $697	Free Cancellation	Rating 7.0 12,132 reviews	Search American Airlines flights
Delta	PriceFrom $739	Free Cancellation	Rating 7.8 8,626 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 1,932 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.