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Cheap flights from St. Louis to Tokyo from $450

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Tokyo departing on 8/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from St. Louis to Tokyo

Cheap round-trip flights

Enter your travel dates to find the best prices.
ANA Logo
9:16 am - 3:25 pm
STL
-
HND
16h 09m
1 stop
ANA Logo
10:25 am - 2:08 pm
HND
-
STL
17h 43m
1 stop
$1,194ANA
Sun, Sep 6 - Sun, Sep 13
ANA Logo
8:00 am - 3:10 pm
STL
-
NRT
17h 10m
1 stop
ANA Logo
5:00 pm - 7:31 pm
NRT
-
STL
16h 31m
1 stop
$1,195ANA
Mon, Sep 7 - Mon, Sep 14
Japan Airlines Logo
7:23 am - 5:30 pm
STL
-
HND
20h 07m
1 stop
Japan Airlines Logo
12:35 pm - 11:02 pm
HND
-
STL
24h 27m
2 stops
$1,197Japan Airlines
Sun, Sep 6 - Sun, Sep 13
Delta Logo
6:00 am - 4:15 pm
STL
-
HND
20h 15m
2 stops
Delta Logo
4:20 pm - 12:36 am
HND
-
STL
22h 16m
2 stops
$1,207Delta
Sun, Sep 6 - Sun, Sep 13
Air Canada Logo
8:55 am - 3:50 pm
STL
-
NRT
16h 55m
1 stop
Air Canada Logo
5:50 pm - 2:00 pm
NRT
-
STL
34h 10m
2 stops
$1,238Air Canada
Sun, Sep 6 - Sun, Sep 13
Air Canada Logo
2:40 pm - 3:25 pm
STL
-
NRT
34h 45m
2 stops
Air Canada Logo
5:50 pm - 2:00 pm
NRT
-
STL
34h 10m
2 stops
$1,241Air Canada
Sun, Sep 6 - Sun, Sep 13
Delta Logo
6:58 pm - 1:05 pm
STL
-
HND
28h 07m
2 stops
Delta Logo
6:25 pm - 9:31 am
HND
-
STL
29h 06m
1 stop
$1,283Delta
Wed, Jul 15 - Sat, Jul 25
United Airlines Logo
1:13 pm - 9:15 pm
STL
-
HND
18h 02m
1 stop
United Airlines Logo
6:10 pm - 11:50 pm
HND
-
STL
19h 40m
2 stops
$1,284United Airlines
Tue, Jul 28 - Fri, Aug 14
United Airlines Logo
5:10 am - 2:10 pm
STL
-
NRT
19h 00m
2 stops
United Airlines Logo
5:05 pm - 10:09 am
NRT
-
STL
31h 04m
2 stops
$1,285United Airlines
Sun, Jul 26 - Wed, Aug 12
Japan Airlines Logo
8:25 am - 3:20 pm
STL
-
HND
16h 55m
1 stop
Japan Airlines Logo
12:35 pm - 11:59 pm
HND
-
STL
25h 24m
2 stops
$1,288Japan Airlines
Thu, Jul 16 - Thu, Jul 23

United Airlines flights from St. Louis to Tokyo

Our best United Airlines deals on St. Louis to Tokyo flight tickets
United Airlines
Aug 19
STL6:00 amLambert-St Louis
20h 30m
2 stops
NRT4:30 pmTokyo Narita
Aug 26
NRT4:45 pmTokyo Narita
18h 37m
2 stops
STL9:22 pmLambert-St Louis
$1,145
United Airlines
Jul 28
STL9:23 amLambert-St Louis
16h 02m
1 stop
HND3:25 pmTokyo Haneda
Aug 12
HND12:30 amTokyo Haneda
22h 07m
2 stops
STL8:37 amLambert-St Louis
$1,284
United Airlines
Jul 26
STL5:10 amLambert-St Louis
19h 00m
2 stops
NRT2:10 pmTokyo Narita
Aug 12
NRT5:05 pmTokyo Narita
31h 04m
2 stops
STL10:09 amLambert-St Louis
$1,285

American Airlines flights from St. Louis to Tokyo

Our best American Airlines deals on St. Louis to Tokyo flight tickets
American Airlines
Sep 6
STL8:36 amLambert-St Louis
16h 24m
1 stop
NRT3:00 pmTokyo Narita
Sep 13
NRT6:30 pmTokyo Narita
17h 30m
1 stop
STL10:00 pmLambert-St Louis
$1,202
American Airlines
Jul 30
STL9:08 amLambert-St Louis
18h 22m
1 stop
HND5:30 pmTokyo Haneda
Aug 9
HND1:00 pmTokyo Haneda
20h 14m
1 stop
STL7:14 pmLambert-St Louis
$1,299
American Airlines
Jul 30
STL6:00 amLambert-St Louis
17h 25m
1 stop
NRT1:25 pmTokyo Narita
Aug 9
NRT9:45 amTokyo Narita
20h 03m
1 stop
STL3:48 pmLambert-St Louis
$1,300

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Tokyo 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 St. Louis to Tokyo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sun 9/6

9:16 am-3:25 pm

1 stop16h 09m

Tokyo Haneda

Sun 9/13

10:25 am-2:08 pm

1 stop17h 43m

$1,194
Quickest round-trip

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Mon 9/7

8:00 am-3:10 pm

1 stop17h 10m

Tokyo Narita

Mon 9/14

5:00 pm-7:31 pm

1 stop16h 31m

$1,195

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sun 9/6

7:23 am-5:30 pm

1 stop20h 07m

Tokyo Haneda

Sun 9/13

12:35 pm-11:02 pm

2 stops24h 27m

$1,197

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sun 9/6

6:00 am-4:15 pm

2 stops20h 15m

Tokyo Haneda

Sun 9/13

4:20 pm-12:36 am

2 stops22h 16m

$1,207

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Sun 9/6

8:55 am-3:50 pm

1 stop16h 55m

Tokyo Narita

Sun 9/13

5:50 pm-2:00 pm

2 stops34h 10m

$1,238

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Sun 9/6

2:40 pm-3:25 pm

2 stops34h 45m

Tokyo Narita

Sun 9/13

5:50 pm-2:00 pm

2 stops34h 10m

$1,241

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Wed 7/15

6:58 pm-1:05 pm

2 stops28h 07m

Tokyo Haneda

Sat 7/25

6:25 pm-9:31 am

1 stop29h 06m

$1,283

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Tue 7/28

1:13 pm-9:15 pm

1 stop18h 02m

Tokyo Haneda

Fri 8/14

6:10 pm-11:50 pm

2 stops19h 40m

$1,284

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Sun 7/26

5:10 am-2:10 pm

2 stops19h 00m

Tokyo Narita

Wed 8/12

5:05 pm-10:09 am

2 stops31h 04m

$1,285

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Thu 7/16

8:25 am-3:20 pm

1 stop16h 55m

Tokyo Haneda

Thu 7/23

12:35 pm-11:59 pm

2 stops25h 24m

$1,288

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 Tokyo from

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

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

What is the typical price of a round-trip flight between St. Louis and Tokyo?

What is the cheapest month to fly to Tokyo?

The cheapest month to fly to Tokyo from St. Louis is in March. Flight prices, which tend to average around $349, are often lower during this time because this is during the off-season. If you’re not able to fly to Tokyo in March, then May is your next best option. Flight prices from St. Louis to Tokyo during May average around $383.

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

You could potentially save up to 11% on your flight if you consider stops on a St. Louis to Tokyo flight.

How have St. Louis to Tokyo flight prices changed over time?

As of April 2026, prices for St. Louis to Tokyo flights are approximately 9% cheaper when compared to flights at the same time last year.

When to book flights from St. Louis to Tokyo

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Tokyo according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Tokyo (STL to TYO) flight deals and tips

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

Fastest flight time

15h 25m

Direct flights

None
The fastest flight from St. Louis to Tokyo takes 15h 25m
There are no direct flights from St. Louis to Tokyo. There are no popular flight routes from St. Louis to Tokyo.
Search flight deals

Frequently asked questions about flying from St. Louis to Tokyo

  • How far is Lambert-St Louis to Tokyo by plane?

    The straight-line distance from Lambert-St Louis to Tokyo is 6388.4 mi. By plane, this route typically takes 15h 25m.

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

    Prices for flights from Lambert-St Louis Airport to Tokyo were last updated today.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Tokyo?

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

    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 Tokyo.

  • What documentation or ID do you need to fly to Tokyo?

    The travel and health documents you'll need for your trip to Tokyo may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Tokyo. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from St. Louis to Tokyo?

Best airlines flying from St. Louis to Tokyo

Compare and see reviews for airlines that fly from St. Louis to Tokyo with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $593Free CancellationRating
7.1
11,668 reviews
Search American Airlines flights
Air CanadaPriceFrom $629Free CancellationRating
7.1
10,974 reviews
Search Air Canada flights
DeltaPriceFrom $643Free CancellationRating
7.9
8,463 reviews
Search Delta flights
ANAPriceFrom $703Free CancellationRating
8.4
1,197 reviews
Search ANA flights
United AirlinesPriceFrom $757Free CancellationRating
7.4
9,669 reviews
Search United Airlines flights
Japan AirlinesPriceFrom $846Free CancellationRating
8.3
1,791 reviews
Search Japan Airlines flights

Traveling to a place near Tokyo?

Book flights to Tokyo if you plan to visit one of these locations
Hakone
Urayasu
Kawasaki
Chiba
Atami
Kamakura
Izu
Kusatsu
Yokosuka
Yamanouchi
Saitama
Fujiyoshida
Karuizawa
Tsukuba
Kawagoe
Fujisawa
Numazu
Yamanashi
Minakami
Sagamihara

Why use momondo?

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

It is quick and easy to find St. Louis to Tokyo flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Tokyo that suits you.

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

momondo does allow users to show only those flights to Tokyo 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 Tokyo?

momondo provides multiple filters to help you find the best flight to Tokyo from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of St. Louis to Tokyo flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to Japan

Fly into one of these airports located in Tokyo

Airports listed have a maximum distance of 35.1 mi from Tokyo
Tokyo Haneda Airport
Tokyo Narita Airport