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Cheap flights from St. Louis to Tokyo from $347

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 2/10. 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.
Air Canada Logo
4:05 pm - 4:20 pm
STL
-
NRT
33h 15m2 stops
Air Canada Logo
6:15 pm - 9:07 pm
NRT
-
STL
41h 52m2 stops
$622Air Canada
Mon, Feb 23 - Wed, Mar 4
Air Canada Logo
4:05 pm - 4:20 pm
STL
-
NRT
33h 15m2 stops
Air Canada Logo
6:45 pm - 3:29 pm
NRT
-
STL
35h 44m1 stop
$642Air Canada
Mon, Feb 23 - Wed, Mar 4
Multiple Airlines Logo
6:19 pm - 4:00 pm
STL
-
NRT
30h 41m1 stop
Multiple Airlines Logo
6:30 pm - 1:54 pm
NRT
-
STL
34h 24m1 stop
$686Multiple Airlines
Sat, Jan 17 - Wed, Jan 21
Air Canada Logo
9:57 am - 4:20 pm
STL
-
NRT
39h 23m2 stops
Air Canada Logo
6:15 pm - 3:29 pm
NRT
-
STL
36h 14m2 stops
$690Air Canada
Wed, Jan 21 - Wed, Jan 28
ANA Logo
8:17 am - 5:45 pm
STL
-
HND
18h 28m1 stop
ANA Logo
6:20 pm - 12:27 pm
HND
-
STL
33h 07m1 stop
$695ANA
Mon, Feb 23 - Thu, Mar 5
American Airlines Logo
6:30 am - 3:05 pm
STL
-
HND
17h 35m1 stop
American Airlines Logo
5:55 pm - 7:25 pm
HND
-
STL
16h 30m1 stop
$697American Airlines
Mon, Feb 23 - Thu, Mar 5
American Airlines Logo
7:00 am - 3:30 pm
STL
-
NRT
17h 30m1 stop
American Airlines Logo
5:30 pm - 10:54 pm
NRT
-
STL
20h 24m1 stop
$698American Airlines
Mon, Feb 23 - Thu, Mar 5
Delta Logo
6:00 am - 2:35 pm
STL
-
HND
17h 35m1 stop
Delta Logo
5:20 pm - 11:15 pm
HND
-
STL
19h 55m1 stop
$699Delta
Sat, Feb 28 - Tue, Mar 10
Delta Logo
6:10 am - 3:20 pm
STL
-
HND
18h 10m1 stop
Delta Logo
4:50 pm - 12:21 am
HND
-
STL
21h 31m2 stops
$704Delta
Sat, Feb 28 - Tue, Mar 10
United Airlines Logo
8:30 am - 4:50 pm
STL
-
HND
17h 20m1 stop
United Airlines Logo
4:50 pm - 7:27 pm
HND
-
STL
17h 37m1 stop
$727United Airlines
Sun, Jan 25 - Tue, Feb 10

Air Canada flights from St. Louis to Tokyo

Our best Air Canada deals on St. Louis to Tokyo flight tickets
Air Canada
Feb 23
STL4:05 pmLambert-St Louis
33h 15m
2 stops
NRT4:20 pmTokyo Narita
Mar 4
NRT6:15 pmTokyo Narita
41h 52m
2 stops
STL9:07 pmLambert-St Louis
$622
Find similar
Air Canada
Feb 23
STL4:05 pmLambert-St Louis
33h 15m
2 stops
NRT4:20 pmTokyo Narita
Mar 4
NRT6:45 pmTokyo Narita
35h 44m
1 stop
STL3:29 pmLambert-St Louis
$642
Find similar
Air Canada
Jan 21
STL9:57 amLambert-St Louis
39h 23m
2 stops
NRT4:20 pmTokyo Narita
Jan 28
NRT6:15 pmTokyo Narita
36h 14m
2 stops
STL3:29 pmLambert-St Louis
$690
Find similar

American Airlines flights from St. Louis to Tokyo

Our best American Airlines deals on St. Louis to Tokyo flight tickets
American Airlines
Feb 23
STL6:30 amLambert-St Louis
17h 35m
1 stop
HND3:05 pmTokyo Haneda
Mar 5
HND5:55 pmTokyo Haneda
16h 30m
1 stop
STL7:25 pmLambert-St Louis
$697
Find similar
American Airlines
Feb 23
STL7:00 amLambert-St Louis
17h 30m
1 stop
NRT3:30 pmTokyo Narita
Mar 5
NRT5:30 pmTokyo Narita
20h 24m
1 stop
STL10:54 pmLambert-St Louis
$698
Find similar
American Airlines
Feb 23
STL6:00 amLambert-St Louis
21h 30m
2 stops
HND6:30 pmTokyo Haneda
Mar 5
HND8:25 pmTokyo Haneda
18h 23m
1 stop
STL11:48 pmLambert-St Louis
$701
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 December 23, 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 - NRT

STLNRT

Lambert-St Louis

Mon 2/23

4:05 pm-4:20 pm

2 stops33h 15m

Tokyo Narita

Wed 3/4

6:15 pm-9:07 pm

2 stops41h 52m

$622

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Mon 2/23

4:05 pm-4:20 pm

2 stops33h 15m

Tokyo Narita

Wed 3/4

6:45 pm-3:29 pm

1 stop35h 44m

$642

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Sat 1/17

6:19 pm-4:00 pm

1 stop30h 41m

Tokyo Narita

Wed 1/21

6:30 pm-1:54 pm

1 stop34h 24m

$686

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Wed 1/21

9:57 am-4:20 pm

2 stops39h 23m

Tokyo Narita

Wed 1/28

6:15 pm-3:29 pm

2 stops36h 14m

$690

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Mon 2/23

8:17 am-5:45 pm

1 stop18h 28m

Tokyo Haneda

Thu 3/5

6:20 pm-12:27 pm

1 stop33h 07m

$695

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Mon 2/23

6:30 am-3:05 pm

1 stop17h 35m

Tokyo Haneda

Thu 3/5

5:55 pm-7:25 pm

1 stop16h 30m

$697

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Mon 2/23

7:00 am-3:30 pm

1 stop17h 30m

Tokyo Narita

Thu 3/5

5:30 pm-10:54 pm

1 stop20h 24m

$698

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sat 2/28

6:00 am-2:35 pm

1 stop17h 35m

Tokyo Haneda

Tue 3/10

5:20 pm-11:15 pm

1 stop19h 55m

$699

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sat 2/28

6:10 am-3:20 pm

1 stop18h 10m

Tokyo Haneda

Tue 3/10

4:50 pm-12:21 am

2 stops21h 31m

$704

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sun 1/25

8:30 am-4:50 pm

1 stop17h 20m

Tokyo Haneda

Tue 2/10

4:50 pm-7:27 pm

1 stop17h 37m

$727

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 September. Flight prices, which tend to average around $747, 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 $791.

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 22% 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 December 2025, prices for St. Louis to Tokyo flights are approximately 46% 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 30m

Direct flights

None
The fastest flight from St. Louis to Tokyo takes 15h 30m
There are no direct flights from St. Louis to Tokyo. There are no popular flight routes from St. Louis to Tokyo.
Search flight deals

  • 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 30m.

  • 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
10,551 reviews
Search Air Canada flights
American AirlinesPriceFrom $633Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights
Japan AirlinesPriceFrom $691Free CancellationRating
8.3
1,662 reviews
Search Japan Airlines flights
ANAPriceFrom $703Free CancellationRating
8.4
1,041 reviews
Search ANA flights
United AirlinesPriceFrom $716Free CancellationRating
7.4
9,109 reviews
Search United Airlines flights
DeltaPriceFrom $722Free CancellationRating
7.9
8,015 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
Saitama
Yamanouchi
Fujiyoshida
Izu
Fujisawa
Tsukuba
Kawagoe
Yamanashi
Numazu
Karuizawa
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