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Cheap flights from St. Louis to Tokyo from $329

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 9/28. 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 (STL-TYO)

Cheap round-trip flights

American Airlines Logo
5:15 am - 3:00 pmSTL-NRT
19h 45m1 stop
American Airlines Logo
6:30 pm - 8:15 pmNRT-STL
15h 45m1 stop
$633American Airlines
Find Deal
Mon, Sep 1 - Tue, Sep 9
American Airlines Logo
6:10 am - 3:00 pmSTL-NRT
18h 50m2 stops
American Airlines Logo
6:30 pm - 10:50 pmNRT-STL
18h 20m1 stop
$638American Airlines
Find Deal
Tue, Sep 9 - Wed, Sep 17
Air Canada Logo
5:18 pm - 4:40 pmSTL-HND
32h 22m2 stops
Air Canada Logo
6:50 pm - 12:20 pmHND-STL
32h 30m2 stops
$643Air Canada
Find Deal
Wed, Jan 7 - Wed, Jan 21
Air Canada Logo
5:18 pm - 4:30 pmSTL-NRT
32h 12m2 stops
Air Canada Logo
6:45 pm - 12:20 pmNRT-STL
32h 35m2 stops
$644Air Canada
Find Deal
Wed, Jan 7 - Wed, Jan 21
United Airlines Logo
9:20 am - 3:00 pmSTL-NRT
15h 40m1 stop
United Airlines Logo
5:00 pm - 10:00 pmNRT-STL
19h 00m2 stops
$713United Airlines
Find Deal
Tue, Sep 30 - Tue, Oct 7
United Airlines Logo
3:20 pm - 9:15 pmSTL-HND
15h 55m1 stop
United Airlines Logo
3:50 pm - 4:53 pmHND-STL
15h 03m1 stop
$715United Airlines
Find Deal
Mon, Sep 15 - Wed, Sep 17
Japan Airlines Logo
5:57 am - 2:45 pmSTL-NRT
17h 48m1 stop
Japan Airlines Logo
6:10 pm - 11:56 pmNRT-STL
20h 46m1 stop
$715Japan Airlines
Find Deal
Mon, Feb 9 - Fri, Feb 27
Japan Airlines Logo
7:00 am - 3:40 pmSTL-NRT
17h 40m1 stop
Japan Airlines Logo
5:10 pm - 11:08 pmNRT-STL
20h 58m1 stop
$716Japan Airlines
Find Deal
Thu, Feb 12 - Thu, Feb 19
Delta Logo
7:00 am - 4:15 pmSTL-HND
19h 15m2 stops
Delta Logo
3:15 pm - 10:02 pmHND-STL
20h 47m2 stops
$738Delta
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Mon, Sep 1 - Wed, Sep 10
Delta Logo
5:11 pm - 2:20 pmSTL-HND
31h 09m1 stop
Delta Logo
3:15 pm - 8:34 pmHND-STL
19h 19m1 stop
$739Delta
Find Deal
Sat, Sep 13 - Wed, Sep 17

American Airlines flights from St. Louis to Tokyo

Our best American Airlines deals on St. Louis to Tokyo flight tickets
American Airlines
Sep 1
STL5:15 amLambert-St Louis
19h 45m
1 stop
NRT3:00 pmTokyo Narita
Sep 9
NRT6:30 pmTokyo Narita
15h 45m
1 stop
STL8:15 pmLambert-St Louis
$633
Find similar
American Airlines
Sep 9
STL6:10 amLambert-St Louis
18h 50m
2 stops
NRT3:00 pmTokyo Narita
Sep 17
NRT6:30 pmTokyo Narita
18h 20m
1 stop
STL10:50 pmLambert-St Louis
$638
Find similar
American Airlines
Sep 18
STL8:50 amLambert-St Louis
16h 10m
1 stop
NRT3:00 pmTokyo Narita
Sep 25
NRT6:30 pmTokyo Narita
17h 53m
1 stop
STL10:23 pmLambert-St Louis
$641
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Alaska Airlines flights from St. Louis to Tokyo

Our best Alaska Airlines deals on St. Louis to Tokyo flight tickets
Alaska Airlines
Sep 13
STL6:00 amLambert-St Louis
20h 00m
1 stop
NRT4:00 pmTokyo Narita
Oct 5
NRT6:25 pmTokyo Narita
19h 38m
1 stop
STL12:03 amLambert-St Louis
$657
Find similar
Alaska Airlines
Aug 31
STL6:00 amLambert-St Louis
20h 00m
1 stop
NRT4:00 pmTokyo Narita
Sep 9
NRT6:25 pmTokyo Narita
34h 14m
1 stop
STL2:39 pmLambert-St Louis
$666
Find similar
Alaska Airlines
Sep 11
STL6:30 pmLambert-St Louis
31h 30m
1 stop
NRT4:00 pmTokyo Narita
Sep 21
NRT6:25 pmTokyo Narita
34h 14m
1 stop
STL2:39 pmLambert-St Louis
$675
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 August 17, 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 9/1

5:15 am-3:00 pm

1 stop19h 45m

Tokyo Narita

Tue 9/9

6:30 pm-8:15 pm

1 stop15h 45m

$633

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Tue 9/9

6:10 am-3:00 pm

2 stops18h 50m

Tokyo Narita

Wed 9/17

6:30 pm-10:50 pm

1 stop18h 20m

$638

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Wed 1/7

5:18 pm-4:40 pm

2 stops32h 22m

Tokyo Haneda

Wed 1/21

6:50 pm-12:20 pm

2 stops32h 30m

$643

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Wed 1/7

5:18 pm-4:30 pm

2 stops32h 12m

Tokyo Narita

Wed 1/21

6:45 pm-12:20 pm

2 stops32h 35m

$644

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Tue 9/30

9:20 am-3:00 pm

1 stop15h 40m

Tokyo Narita

Tue 10/7

5:00 pm-10:00 pm

2 stops19h 00m

$713

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Mon 9/15

3:20 pm-9:15 pm

1 stop15h 55m

Tokyo Haneda

Wed 9/17

3:50 pm-4:53 pm

1 stop15h 03m

$715

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Mon 2/9

5:57 am-2:45 pm

1 stop17h 48m

Tokyo Narita

Fri 2/27

6:10 pm-11:56 pm

1 stop20h 46m

$715

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Thu 2/12

7:00 am-3:40 pm

1 stop17h 40m

Tokyo Narita

Thu 2/19

5:10 pm-11:08 pm

1 stop20h 58m

$716

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Mon 9/1

7:00 am-4:15 pm

2 stops19h 15m

Tokyo Haneda

Wed 9/10

3:15 pm-10:02 pm

2 stops20h 47m

$738

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sat 9/13

5:11 pm-2:20 pm

1 stop31h 09m

Tokyo Haneda

Wed 9/17

3:15 pm-8:34 pm

1 stop19h 19m

$739

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 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 $813, 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 $832.

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 2% 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 August 2025, prices for St. Louis to Tokyo flights are approximately 38% 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

Best Price Found

$329

Fastest flight time

15h 40m

Direct flights

None

Airports in Tokyo

2 airports
The best one-way flight to Tokyo from St. Louis in the past 72 hours is $329. The best round-trip flight deal from St. Louis to Tokyo found on momondo in the last 72 hours is $633.
The fastest flight from St. Louis to Tokyo takes 15h 40m
There are no direct flights from St. Louis to Tokyo. Popular non-direct routes for this connection are Lambert-St Louis Airport - Tokyo Haneda Airport and Lambert-St Louis Airport - Tokyo Narita Airport.
There are 2 airports near Tokyo: Tokyo Narita (NRT), Tokyo Haneda (HND)
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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.

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
9,977 reviews
Search Air Canada flights
Japan AirlinesPriceFrom $691Free CancellationRating
8.3
1,548 reviews
Search Japan Airlines flights
ANAPriceFrom $703Free CancellationRating
8.4
933 reviews
Search ANA flights
United AirlinesPriceFrom $716Free CancellationRating
7.4
8,919 reviews
Search United Airlines flights
American AirlinesPriceFrom $716Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $723Free CancellationRating
8.0
7,986 reviews
Search Delta flights

Traveling to a place near Tokyo?

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

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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