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Cheap flights from Japan to St. Louis from $445

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Japan to St. Louis departing on 5/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Find the cheapest flights from Japan to St. Louis

Recent round-trip flight deals from Japan to St. Louis

Enter your travel dates to find the best prices.
Japan Airlines Logo
7:45 pm - 9:24 am
HND
-
STL
27h 39m
2 stops
Japan Airlines Logo
5:42 am - 2:20 pm
STL
-
HND
18h 38m
1 stop
$1,010Japan Airlines
Mon, Aug 10 - Thu, Aug 27
Japan Airlines Logo
7:45 pm - 8:47 am
HND
-
STL
27h 02m
2 stops
Japan Airlines Logo
5:11 pm - 2:20 pm
STL
-
HND
31h 09m
1 stop
$1,016Japan Airlines
Sat, Jul 18 - Sat, Aug 29
Japan Airlines Logo
7:45 pm - 9:24 am
HND
-
STL
27h 39m
2 stops
Japan Airlines Logo
8:02 pm - 1:55 pm
STL
-
HND
27h 53m
2 stops
$1,021Japan Airlines
Mon, Aug 10 - Thu, Aug 27
Delta Logo
4:05 pm - 8:46 am
HND
-
STL
30h 41m
1 stop
Delta Logo
10:45 am - 4:15 pm
STL
-
HND
15h 30m
1 stop
$1,197Delta
Sat, Jul 18 - Sat, Aug 29
Delta Logo
4:05 pm - 8:42 am
HND
-
STL
30h 37m
1 stop
Delta Logo
12:10 pm - 1:05 pm
STL
-
HND
34h 55m
1 stop
$1,264Delta
Sat, Aug 1 - Mon, Aug 10
United Airlines Logo
3:50 pm - 6:24 pm
HND
-
STL
16h 34m
1 stop
United Airlines Logo
9:16 am - 3:25 pm
STL
-
HND
16h 09m
1 stop
$1,301United Airlines
Thu, Aug 27 - Mon, Aug 31
United Airlines Logo
5:15 pm - 9:22 pm
HND
-
STL
18h 07m
1 stop
United Airlines Logo
8:30 pm - 3:25 pm
STL
-
HND
28h 55m
1 stop
$1,303United Airlines
Thu, Aug 27 - Mon, Aug 31
EVA Air Logo
10:15 am - 11:59 pm
OKA
-
STL
51h 44m
2 stops
EVA Air Logo
7:56 pm - 9:15 am
STL
-
OKA
23h 19m
2 stops
$1,350EVA Air
Thu, Jun 25 - Tue, Jul 21
Multiple Airlines Logo
10:15 am - 1:52 pm
OKA
-
STL
41h 37m
2 stops
Multiple Airlines Logo
7:56 pm - 9:15 am
STL
-
OKA
23h 19m
2 stops
$1,367Multiple Airlines
Thu, Jun 25 - Tue, Jul 21
Multiple Airlines Logo
1:20 pm - 12:34 am
OKA
-
STL
25h 14m
3 stops
Multiple Airlines Logo
12:10 pm - 10:10 pm
STL
-
OKA
44h 00m
2 stops
$2,737Multiple Airlines
Thu, Jun 25 - Tue, Jul 21

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United Airlines flights from Japan to St. Louis

Our best United Airlines deals on Japan to St. Louis flight tickets
United Airlines
Aug 27
HND3:50 pmTokyo Haneda
16h 34m
1 stop
STL6:24 pmLambert-St Louis
Aug 31
STL9:16 amLambert-St Louis
16h 09m
1 stop
HND3:25 pmTokyo Haneda
$1,301
United Airlines
Aug 27
HND5:15 pmTokyo Haneda
18h 07m
1 stop
STL9:22 pmLambert-St Louis
Aug 31
STL8:30 pmLambert-St Louis
28h 55m
1 stop
HND3:25 pmTokyo Haneda
$1,303
United Airlines
Aug 27
HND3:50 pmTokyo Haneda
16h 34m
1 stop
STL6:24 pmLambert-St Louis
Aug 31
STL4:40 pmLambert-St Louis
32h 25m
2 stops
HND3:05 pmTokyo Haneda
$1,304

Air Canada flights from Japan to St. Louis

Our best Air Canada deals on Japan to St. Louis flight tickets
Air Canada
Jun 10
HND6:05 pmTokyo Haneda
32h 01m
1 stop
STL12:06 pmLambert-St Louis
Jun 17
STL2:15 pmLambert-St Louis
35h 25m
1 stop
HND3:40 pmTokyo Haneda
$1,859
Air Canada
Jun 12
HND6:05 pmTokyo Haneda
32h 01m
1 stop
STL12:06 pmLambert-St Louis
Jun 19
STL2:15 pmLambert-St Louis
35h 25m
1 stop
HND3:40 pmTokyo Haneda
$2,143

momondo Fare Finder

 
Customize your flight search to find flights from Japan to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated April 28, 2026.
Use the filters below to find and compare flights from Japan to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Mon 8/10

7:45 pm-9:24 am

2 stops27h 39m

Lambert-St Louis

Thu 8/27

5:42 am-2:20 pm

1 stop18h 38m

$1,010

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Sat 7/18

7:45 pm-8:47 am

2 stops27h 02m

Lambert-St Louis

Sat 8/29

5:11 pm-2:20 pm

1 stop31h 09m

$1,016

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Mon 8/10

7:45 pm-9:24 am

2 stops27h 39m

Lambert-St Louis

Thu 8/27

8:02 pm-1:55 pm

2 stops27h 53m

$1,021

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Sat 7/18

4:05 pm-8:46 am

1 stop30h 41m

Lambert-St Louis

Sat 8/29

10:45 am-4:15 pm

1 stop15h 30m

$1,197

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Sat 8/1

4:05 pm-8:42 am

1 stop30h 37m

Lambert-St Louis

Mon 8/10

12:10 pm-1:05 pm

1 stop34h 55m

$1,264
Quickest round-trip

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Thu 8/27

3:50 pm-6:24 pm

1 stop16h 34m

Lambert-St Louis

Mon 8/31

9:16 am-3:25 pm

1 stop16h 09m

$1,301

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Thu 8/27

5:15 pm-9:22 pm

1 stop18h 07m

Lambert-St Louis

Mon 8/31

8:30 pm-3:25 pm

1 stop28h 55m

$1,303

OkinawaSt. Louis

OKA - STL

OKASTL

Okinawa Naha

Thu 6/25

10:15 am-11:59 pm

2 stops51h 44m

Lambert-St Louis

Tue 7/21

7:56 pm-9:15 am

2 stops23h 19m

$1,350

OkinawaSt. Louis

OKA - STL

OKASTL

Okinawa Naha

Thu 6/25

10:15 am-1:52 pm

2 stops41h 37m

Lambert-St Louis

Tue 7/21

7:56 pm-9:15 am

2 stops23h 19m

$1,367

OkinawaSt. Louis

OKA - STL

OKASTL

Okinawa Naha

Thu 6/25

1:20 pm-12:34 am

3 stops25h 14m

Lambert-St Louis

Tue 7/21

12:10 pm-10:10 pm

2 stops44h 00m

$2,737

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Japan to St. Louis

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

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

You could potentially save up to 13% on your flight if you consider stops on a Japan to St. Louis flight.

Cheap Japan to St. Louis flight deals and tips

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

Fastest flight time

16h 34m

Direct flights

None
The fastest flight from Japan to St. Louis takes 16h 34m
There are no direct flights from Japan to St. Louis. There are no popular flight routes from Japan to St. Louis.
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Frequently asked questions about flying from Japan to St. Louis

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

    Prices for flights from Japan to Lambert-St Louis Airport refresh daily.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Japan to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
O'Fallon
Florissant
St. Peters
Collinsville
Wentzville
Alton
Fenton
Farmington
Festus
Clayton
Eureka
Litchfield
Edwardsville
Shrewsbury
Grafton

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Japan to St. Louis for you.

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

Flights from Japan to St. Louis with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Japan and St. Louis by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Japan to St. Louis now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. Louis and let you know when they change.

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