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Cheap flights from St. Louis to Tokyo from $338

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 12/6. 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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0 bags

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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.
United Airlines Logo
5:24 pm - 5:45 pmSTL-HND
33h 21m1 stop
United Airlines Logo
4:25 pm - 4:27 pmHND-STL
15h 02m1 stop
$815United Airlines
Find Deal
Sat, Nov 29 - Mon, Dec 8
United Airlines Logo
6:15 am - 3:30 pmSTL-NRT
18h 15m1 stop
United Airlines Logo
5:35 pm - 10:45 pmNRT-STL
20h 10m2 stops
$815United Airlines
Find Deal
Tue, Dec 2 - Sat, Dec 13
Delta Logo
1:55 pm - 2:35 pmSTL-HND
33h 40m1 stop
Delta Logo
4:25 pm - 5:10 pmHND-STL
15h 45m1 stop
$816Delta
Find Deal
Sat, Nov 29 - Sun, Dec 7
United Airlines Logo
9:55 am - 9:05 pmSTL-HND
20h 10m1 stop
United Airlines Logo
6:25 pm - 11:50 pmHND-STL
19h 25m1 stop
$818United Airlines
Find Deal
Sat, Feb 28 - Thu, Mar 19
United Airlines Logo
6:43 pm - 5:45 pmSTL-HND
32h 02m1 stop
United Airlines Logo
12:50 am - 10:04 amHND-STL
24h 14m2 stops
$819United Airlines
Find Deal
Sat, Nov 29 - Sat, Dec 6
Delta Logo
12:49 pm - 3:20 pmSTL-HND
35h 31m1 stop
Delta Logo
5:35 pm - 12:48 amHND-STL
22h 13m2 stops
$820Delta
Find Deal
Sat, Nov 29 - Mon, Dec 8
Air Canada Logo
6:40 pm - 4:30 pmSTL-NRT
30h 50m2 stops
Air Canada Logo
6:45 pm - 3:29 pmNRT-STL
34h 44m2 stops
$826Air Canada
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Tue, Feb 10 - Thu, Mar 12
Air Canada Logo
6:42 pm - 4:30 pmSTL-NRT
30h 48m2 stops
Air Canada Logo
6:45 pm - 3:29 pmNRT-STL
35h 44m2 stops
$830Air Canada
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Mon, Dec 8 - Sat, Dec 20
ANA Logo
8:00 am - 5:45 pmSTL-HND
18h 45m1 stop
ANA Logo
6:20 pm - 7:17 pmHND-STL
15h 57m1 stop
$832ANA
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Sun, Nov 30 - Fri, Dec 5
American Airlines Logo
5:17 am - 3:30 pmSTL-NRT
19h 13m1 stop
American Airlines Logo
5:30 pm - 7:29 pmNRT-STL
16h 59m1 stop
$840American Airlines
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Tue, Nov 25 - Wed, Dec 10

Air Canada flights from St. Louis to Tokyo

Our best Air Canada deals on St. Louis to Tokyo flight tickets
Air Canada
Feb 10
STL6:40 pmLambert-St Louis
30h 50m
2 stops
NRT4:30 pmTokyo Narita
Mar 12
NRT6:45 pmTokyo Narita
34h 44m
2 stops
STL3:29 pmLambert-St Louis
$826
Find similar
Air Canada
Dec 8
STL6:42 pmLambert-St Louis
30h 48m
2 stops
NRT4:30 pmTokyo Narita
Dec 20
NRT6:45 pmTokyo Narita
35h 44m
2 stops
STL3:29 pmLambert-St Louis
$830
Find similar
Air Canada
Feb 28
STL4:05 pmLambert-St Louis
33h 15m
2 stops
NRT4:20 pmTokyo Narita
Mar 10
NRT5:15 pmTokyo Narita
19h 34m
2 stops
STL10:49 pmLambert-St Louis
$832
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American Airlines flights from St. Louis to Tokyo

Our best American Airlines deals on St. Louis to Tokyo flight tickets
American Airlines
Nov 25
STL5:17 amLambert-St Louis
19h 13m
1 stop
NRT3:30 pmTokyo Narita
Dec 10
NRT5:30 pmTokyo Narita
16h 59m
1 stop
STL7:29 pmLambert-St Louis
$840
Find similar
American Airlines
Dec 9
STL7:00 amLambert-St Louis
17h 30m
1 stop
NRT3:30 pmTokyo Narita
Dec 23
NRT5:00 pmTokyo Narita
14h 46m
1 stop
STL4:46 pmLambert-St Louis
$852
Find similar
American Airlines
Dec 2
STL7:00 amLambert-St Louis
17h 30m
1 stop
NRT3:30 pmTokyo Narita
Dec 16
NRT5:40 pmTokyo Narita
20h 07m
2 stops
STL10:47 pmLambert-St Louis
$857
Find similar

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 November 13, 2025.
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

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sat 11/29

5:24 pm-5:45 pm

1 stop33h 21m

Tokyo Haneda

Mon 12/8

4:25 pm-4:27 pm

1 stop15h 02m

$815

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Tue 12/2

6:15 am-3:30 pm

1 stop18h 15m

Tokyo Narita

Sat 12/13

5:35 pm-10:45 pm

2 stops20h 10m

$815

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sat 11/29

1:55 pm-2:35 pm

1 stop33h 40m

Tokyo Haneda

Sun 12/7

4:25 pm-5:10 pm

1 stop15h 45m

$816

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sat 2/28

9:55 am-9:05 pm

1 stop20h 10m

Tokyo Haneda

Thu 3/19

6:25 pm-11:50 pm

1 stop19h 25m

$818

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sat 11/29

6:43 pm-5:45 pm

1 stop32h 02m

Tokyo Haneda

Sat 12/6

12:50 am-10:04 am

2 stops24h 14m

$819

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sat 11/29

12:49 pm-3:20 pm

1 stop35h 31m

Tokyo Haneda

Mon 12/8

5:35 pm-12:48 am

2 stops22h 13m

$820

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Tue 2/10

6:40 pm-4:30 pm

2 stops30h 50m

Tokyo Narita

Thu 3/12

6:45 pm-3:29 pm

2 stops34h 44m

$826

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Mon 12/8

6:42 pm-4:30 pm

2 stops30h 48m

Tokyo Narita

Sat 12/20

6:45 pm-3:29 pm

2 stops35h 44m

$830

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sun 11/30

8:00 am-5:45 pm

1 stop18h 45m

Tokyo Haneda

Fri 12/5

6:20 pm-7:17 pm

1 stop15h 57m

$832

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Tue 11/25

5:17 am-3:30 pm

1 stop19h 13m

Tokyo Narita

Wed 12/10

5:30 pm-7:29 pm

1 stop16h 59m

$840

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 cheapest month to fly to Tokyo?

The cheapest month to fly to Tokyo from St. Louis is in September. Flight prices, which tend to average around $735, are often lower during this time because this is during the off-season. If you’re not able to fly to Tokyo in September, then January is your next best option. Flight prices from St. Louis to Tokyo during January average around $775.

What is the cheapest day to depart on your flight to Tokyo?

The cheapest day to depart on your flight to Tokyo is on a Wednesday when prices can be found for as low as $1,209. This is often the case because there is less demand to fly during this day of the week. Flights from St. Louis to Tokyo on a Friday will generally be more expensive and average around $1,457. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Tokyo?

At noon is the cheapest time of day to fly from St. Louis to Tokyo when you can find flight prices for as low as $1,103. Flying to Tokyo at noon is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Tokyo is in the morning when prices are around $1,308.

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

You could potentially save up to 5% 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 November 2025, prices for St. Louis to Tokyo flights are approximately 16% 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

Direct flights

None
There are no direct flights from St. Louis to Tokyo. There are no popular flight routes from St. Louis to Tokyo.
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  • 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 40m.

  • 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
Air CanadaPriceFrom $629Free CancellationRating
7.1
10,448 reviews
Search Air Canada flights
American AirlinesPriceFrom $633Free CancellationRating
7.2
11,051 reviews
Search American Airlines flights
ANAPriceFrom $703Free CancellationRating
8.4
1,004 reviews
Search ANA flights
Japan AirlinesPriceFrom $703Free CancellationRating
8.3
1,613 reviews
Search Japan Airlines flights
United AirlinesPriceFrom $716Free CancellationRating
7.4
9,017 reviews
Search United Airlines flights
DeltaPriceFrom $722Free CancellationRating
7.9
8,008 reviews
Search Delta 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
Yokosuka
Kusatsu
Yamanouchi
Saitama
Izu
Fujiyoshida
Fujisawa
Tsukuba
Kawagoe
Numazu
Karuizawa
Yamanashi
Minakami
Fuefuki

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