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Cheap flights from Japan to St. Louis from $648

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 9/2. 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.
Delta Logo
4:05 pm - 11:16 pm
HND
-
STL
21h 11m
1 stop
Delta Logo
6:54 pm - 1:05 pm
STL
-
HND
28h 11m
2 stops
$925Delta
Tue, Sep 8 - Mon, Sep 14
Delta Logo
6:25 pm - 11:42 pm
HND
-
STL
19h 17m
2 stops
Delta Logo
6:00 am - 4:15 pm
STL
-
HND
20h 15m
2 stops
$925Delta
Thu, Sep 10 - Thu, Sep 17
Delta Logo
4:20 pm - 11:16 pm
HND
-
STL
20h 56m
2 stops
Delta Logo
6:00 am - 4:15 pm
STL
-
HND
20h 15m
2 stops
$925Delta
Wed, Sep 9 - Thu, Sep 17
Delta Logo
6:25 pm - 11:42 pm
HND
-
STL
19h 17m
2 stops
Delta Logo
6:40 am - 4:15 pm
STL
-
HND
19h 35m
1 stop
$925Delta
Wed, Sep 9 - Thu, Sep 17
Delta Logo
4:35 pm - 9:31 pm
HND
-
STL
18h 56m
2 stops
Delta Logo
6:54 pm - 1:05 pm
STL
-
HND
28h 11m
2 stops
$925Delta
Tue, Sep 8 - Mon, Sep 14
Delta Logo
4:05 pm - 4:47 pm
HND
-
STL
14h 42m
1 stop
Delta Logo
10:29 am - 4:15 pm
STL
-
HND
15h 46m
1 stop
$925Delta
Thu, Sep 10 - Thu, Sep 17
Delta Logo
6:25 pm - 8:35 pm
HND
-
STL
16h 10m
1 stop
Delta Logo
6:00 am - 4:15 pm
STL
-
HND
20h 15m
2 stops
$925Delta
Thu, Sep 10 - Thu, Sep 17
Delta Logo
3:15 pm - 11:42 pm
HND
-
STL
22h 27m
1 stop
Delta Logo
5:59 pm - 4:15 pm
STL
-
HND
32h 16m
1 stop
$925Delta
Tue, Sep 8 - Mon, Sep 14
Delta Logo
6:25 pm - 8:35 pm
HND
-
STL
16h 10m
1 stop
Delta Logo
10:29 am - 4:15 pm
STL
-
HND
15h 46m
1 stop
$925Delta
Wed, Sep 9 - Thu, Sep 17
Delta Logo
4:05 pm - 4:47 pm
HND
-
STL
14h 42m
1 stop
Delta Logo
5:47 pm - 1:05 pm
STL
-
HND
29h 18m
1 stop
$1,023Delta
Sat, Sep 12 - Sat, Sep 19

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Delta flights from Japan to St. Louis

Our best Delta deals on Japan to St. Louis flight tickets
Delta
Sep 8
HND4:35 pmTokyo Haneda
18h 56m
2 stops
STL9:31 pmLambert-St Louis
Sep 14
STL6:54 pmLambert-St Louis
28h 11m
2 stops
HND1:05 pmTokyo Haneda
$925
Delta
Sep 12
HND4:05 pmTokyo Haneda
21h 11m
1 stop
STL11:16 pmLambert-St Louis
Sep 19
STL4:10 pmLambert-St Louis
30h 55m
2 stops
HND1:05 pmTokyo Haneda
$1,023
Delta
Aug 22
HND6:25 pmTokyo Haneda
19h 06m
2 stops
STL11:31 pmLambert-St Louis
Aug 29
STL7:00 amLambert-St Louis
19h 15m
2 stops
HND4:15 pmTokyo Haneda
$1,172

Air Canada flights from Japan to St. Louis

Our best Air Canada deals on Japan to St. Louis flight tickets
Air Canada
Aug 24
HND6:05 pmTokyo Haneda
16h 19m
1 stop
STL8:24 pmLambert-St Louis
Aug 29
STL8:55 amLambert-St Louis
16h 45m
1 stop
HND3:40 pmTokyo Haneda
$1,071
Air Canada
Aug 25
HND6:05 pmTokyo Haneda
33h 57m
1 stop
STL2:02 pmLambert-St Louis
Aug 29
STL8:55 amLambert-St Louis
16h 45m
1 stop
HND3:40 pmTokyo Haneda
$1,073
Air Canada
Aug 24
HND6:05 pmTokyo Haneda
33h 57m
1 stop
STL2:02 pmLambert-St Louis
Aug 29
STL12:10 pmLambert-St Louis
37h 30m
2 stops
HND3:40 pmTokyo Haneda
$1,074

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 July 29, 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

Tue 9/8

4:05 pm-11:16 pm

1 stop21h 11m

Lambert-St Louis

Mon 9/14

6:54 pm-1:05 pm

2 stops28h 11m

$925

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Thu 9/10

6:25 pm-11:42 pm

2 stops19h 17m

Lambert-St Louis

Thu 9/17

6:00 am-4:15 pm

2 stops20h 15m

$925

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Wed 9/9

4:20 pm-11:16 pm

2 stops20h 56m

Lambert-St Louis

Thu 9/17

6:00 am-4:15 pm

2 stops20h 15m

$925

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Wed 9/9

6:25 pm-11:42 pm

2 stops19h 17m

Lambert-St Louis

Thu 9/17

6:40 am-4:15 pm

1 stop19h 35m

$925

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Tue 9/8

4:35 pm-9:31 pm

2 stops18h 56m

Lambert-St Louis

Mon 9/14

6:54 pm-1:05 pm

2 stops28h 11m

$925
Quickest round-trip

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Thu 9/10

4:05 pm-4:47 pm

1 stop14h 42m

Lambert-St Louis

Thu 9/17

10:29 am-4:15 pm

1 stop15h 46m

$925

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Thu 9/10

6:25 pm-8:35 pm

1 stop16h 10m

Lambert-St Louis

Thu 9/17

6:00 am-4:15 pm

2 stops20h 15m

$925

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Tue 9/8

3:15 pm-11:42 pm

1 stop22h 27m

Lambert-St Louis

Mon 9/14

5:59 pm-4:15 pm

1 stop32h 16m

$925

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Wed 9/9

6:25 pm-8:35 pm

1 stop16h 10m

Lambert-St Louis

Thu 9/17

10:29 am-4:15 pm

1 stop15h 46m

$925

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Sat 9/12

4:05 pm-4:47 pm

1 stop14h 42m

Lambert-St Louis

Sat 9/19

5:47 pm-1:05 pm

1 stop29h 18m

$1,023

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 47% 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 19m

Direct flights

None
The fastest flight from Japan to St. Louis takes 16h 19m
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
St. Peters
Maryland Heights
Florissant
Collinsville
O'Fallon
Alton
Fenton
Farmington
Clayton
Wentzville
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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