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Cheap flights from Japan to St. Louis from $594

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 7/15. 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
1 adult, Economy, 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.
American Airlines Logo
7:45 pm - 11:59 pm
HND
-
STL
18h 14m
1 stop
American Airlines Logo
6:55 am - 3:50 pm
STL
-
HND
18h 55m
2 stops
$1,069American Airlines
Wed, Jul 8 - Wed, Jul 29
Delta Logo
4:05 pm - 10:15 pm
HND
-
STL
20h 10m
2 stops
Delta Logo
6:00 am - 4:15 pm
STL
-
HND
20h 15m
2 stops
$1,070Delta
Wed, Jul 8 - Wed, Jul 29
Delta Logo
6:25 pm - 9:32 am
HND
-
STL
29h 07m
1 stop
Delta Logo
6:09 pm - 1:05 pm
STL
-
HND
28h 56m
2 stops
$1,071Delta
Fri, Jun 26 - Sat, Jul 11
Delta Logo
6:25 pm - 9:31 am
HND
-
STL
29h 06m
1 stop
Delta Logo
7:55 pm - 2:20 pm
STL
-
HND
28h 25m
2 stops
$1,072Delta
Wed, Jul 8 - Wed, Jul 15
American Airlines Logo
7:45 pm - 11:59 pm
HND
-
STL
18h 14m
1 stop
American Airlines Logo
6:37 am - 3:50 pm
STL
-
HND
19h 13m
1 stop
$1,078American Airlines
Wed, Jul 8 - Wed, Jul 15
Multiple Airlines Logo
3:50 pm - 1:52 pm
OKA
-
STL
36h 02m
2 stops
Multiple Airlines Logo
7:56 pm - 2:40 pm
STL
-
OKA
28h 44m
2 stops
$1,309Multiple Airlines
Tue, Jul 7 - Mon, Jul 13
Multiple Airlines Logo
3:50 pm - 1:52 pm
OKA
-
STL
36h 02m
2 stops
Multiple Airlines Logo
7:56 pm - 2:40 pm
STL
-
OKA
28h 44m
2 stops
$1,310Multiple Airlines
Tue, Jul 7 - Mon, Jul 13
Multiple Airlines Logo
8:20 pm - 11:59 pm
OKA
-
STL
41h 39m
2 stops
Multiple Airlines Logo
7:00 am - 9:15 am
STL
-
OKA
35h 15m
2 stops
$1,348Multiple Airlines
Tue, Oct 13 - Tue, Nov 3
Multiple Airlines Logo
8:20 pm - 11:59 pm
OKA
-
STL
41h 39m
2 stops
Multiple Airlines Logo
7:00 am - 9:15 am
STL
-
OKA
35h 15m
2 stops
$1,350Multiple Airlines
Tue, Oct 13 - Tue, Nov 3
United Airlines Logo
3:50 pm - 9:31 pm
HND
-
STL
19h 41m
2 stops
United Airlines Logo
8:00 am - 3:25 pm
STL
-
HND
17h 25m
1 stop
$1,670United Airlines
Wed, Sep 9 - Sun, Sep 13

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American Airlines flights from Japan to St. Louis

Our best American Airlines deals on Japan to St. Louis flight tickets
American Airlines
Jul 8
HND7:45 pmTokyo Haneda
18h 14m
1 stop
STL11:59 pmLambert-St Louis
Jul 29
STL6:55 amLambert-St Louis
18h 55m
2 stops
HND3:50 pmTokyo Haneda
$1,069
American Airlines
Jun 26
HND7:45 pmTokyo Haneda
18h 14m
2 stops
STL11:59 pmLambert-St Louis
Jul 11
STL7:24 pmLambert-St Louis
19h 21m
2 stops
HND4:45 amTokyo Haneda
$1,070
American Airlines
Jul 8
HND7:45 pmTokyo Haneda
18h 14m
1 stop
STL11:59 pmLambert-St Louis
Jul 15
STL6:37 amLambert-St Louis
19h 13m
1 stop
HND3:50 pmTokyo Haneda
$1,078

Delta flights from Japan to St. Louis

Our best Delta deals on Japan to St. Louis flight tickets
Delta
Jul 8
HND4:05 pmTokyo Haneda
20h 10m
2 stops
STL10:15 pmLambert-St Louis
Jul 29
STL6:00 amLambert-St Louis
20h 15m
2 stops
HND4:15 pmTokyo Haneda
$1,070
Delta
Jun 26
HND6:25 pmTokyo Haneda
29h 07m
1 stop
STL9:32 amLambert-St Louis
Jul 11
STL6:09 pmLambert-St Louis
28h 56m
2 stops
HND1:05 pmTokyo Haneda
$1,071
Delta
Jul 8
HND4:05 pmTokyo Haneda
21h 17m
1 stop
STL11:22 pmLambert-St Louis
Jul 15
STL6:00 amLambert-St Louis
18h 15m
1 stop
HND2:15 pmTokyo Haneda
$1,072

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 June 14, 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

Wed 7/8

7:45 pm-11:59 pm

1 stop18h 14m

Lambert-St Louis

Wed 7/29

6:55 am-3:50 pm

2 stops18h 55m

$1,069

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Wed 7/8

4:05 pm-10:15 pm

2 stops20h 10m

Lambert-St Louis

Wed 7/29

6:00 am-4:15 pm

2 stops20h 15m

$1,070

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Fri 6/26

6:25 pm-9:32 am

1 stop29h 07m

Lambert-St Louis

Sat 7/11

6:09 pm-1:05 pm

2 stops28h 56m

$1,071

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Wed 7/8

6:25 pm-9:31 am

1 stop29h 06m

Lambert-St Louis

Wed 7/15

7:55 pm-2:20 pm

2 stops28h 25m

$1,072

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Wed 7/8

7:45 pm-11:59 pm

1 stop18h 14m

Lambert-St Louis

Wed 7/15

6:37 am-3:50 pm

1 stop19h 13m

$1,078

OkinawaSt. Louis

OKA - STL

OKASTL

Okinawa Naha

Tue 7/7

3:50 pm-1:52 pm

2 stops36h 02m

Lambert-St Louis

Mon 7/13

7:56 pm-2:40 pm

2 stops28h 44m

$1,309

OkinawaSt. Louis

OKA - STL

OKASTL

Okinawa Naha

Tue 7/7

3:50 pm-1:52 pm

2 stops36h 02m

Lambert-St Louis

Mon 7/13

7:56 pm-2:40 pm

2 stops28h 44m

$1,310

OkinawaSt. Louis

OKA - STL

OKASTL

Okinawa Naha

Tue 10/13

8:20 pm-11:59 pm

2 stops41h 39m

Lambert-St Louis

Tue 11/3

7:00 am-9:15 am

2 stops35h 15m

$1,348

OkinawaSt. Louis

OKA - STL

OKASTL

Okinawa Naha

Tue 10/13

8:20 pm-11:59 pm

2 stops41h 39m

Lambert-St Louis

Tue 11/3

7:00 am-9:15 am

2 stops35h 15m

$1,350
Quickest round-trip

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Wed 9/9

3:50 pm-9:31 pm

2 stops19h 41m

Lambert-St Louis

Sun 9/13

8:00 am-3:25 pm

1 stop17h 25m

$1,670

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 12% 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

18h 14m

Direct flights

None
The fastest flight from Japan to St. Louis takes 18h 14m
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
Fairview Heights
Hermann
Maryland Heights
Florissant
O'Fallon
St. Peters
Collinsville
Alton
Wentzville
Fenton
Clayton
Farmington
Festus
Eureka
Litchfield
Edwardsville
Grafton
Shrewsbury

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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