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Cheap flights from St. Louis to Tokyo from $403

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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Find the cheapest flights from St. Louis to Tokyo

Cheap round-trip flights

Alaska Airlines Logo
6:00 am - 4:00 pmSTL-NRT
20h 00m1 stop
Alaska Airlines Logo
6:25 pm - 12:03 amNRT-STL
19h 38m1 stop
$657Alaska Airlines
Find Deal
Sun, Sep 28 - Wed, Oct 8
American Airlines Logo
7:09 am - 6:30 pmSTL-HND
20h 21m1 stop
American Airlines Logo
6:05 pm - 6:19 pmHND-STL
15h 14m1 stop
$658American Airlines
Find Deal
Fri, Feb 6 - Thu, Feb 19
United Airlines Logo
6:00 am - 3:30 pmSTL-NRT
18h 30m1 stop
United Airlines Logo
5:45 pm - 10:14 pmNRT-STL
19h 29m1 stop
$667United Airlines
Find Deal
Mon, Feb 9 - Fri, Feb 27
United Airlines Logo
2:45 pm - 4:50 amSTL-HND
23h 05m2 stops
United Airlines Logo
7:40 pm - 10:56 pmHND-STL
18h 16m2 stops
$670United Airlines
Find Deal
Mon, Feb 9 - Fri, Feb 27
Delta Logo
6:00 am - 5:45 pmSTL-HND
20h 45m2 stops
Delta Logo
4:50 pm - 11:10 pmHND-STL
21h 20m2 stops
$719Delta
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Thu, Jan 15 - Fri, Jan 30
Air Canada Logo
4:05 pm - 4:30 pmSTL-NRT
33h 25m1 stop
Air Canada Logo
6:15 pm - 9:00 pmNRT-STL
41h 45m2 stops
$728Air Canada
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Fri, Feb 6 - Thu, Feb 19
Japan Airlines Logo
6:00 am - 10:00 pmSTL-HND
25h 00m1 stop
Japan Airlines Logo
10:50 am - 11:08 amHND-STL
15h 18m1 stop
$733Japan Airlines
Find Deal
Mon, Dec 1 - Tue, Feb 10
Japan Airlines Logo
6:00 am - 2:40 pmSTL-NRT
17h 40m1 stop
Japan Airlines Logo
5:05 pm - 11:59 pmNRT-STL
21h 54m1 stop
$734Japan Airlines
Find Deal
Mon, Dec 1 - Tue, Feb 10
Air Canada Logo
4:05 pm - 4:20 pmSTL-NRT
33h 15m2 stops
Air Canada Logo
6:45 pm - 10:52 amNRT-STL
31h 07m2 stops
$735Air Canada
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Fri, Jan 16 - Fri, Jan 23
Delta Logo
6:29 am - 5:45 pmSTL-HND
20h 16m1 stop
Delta Logo
5:20 pm - 11:10 pmHND-STL
20h 50m1 stop
$765Delta
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Thu, Jan 1 - Sat, Jan 31

Air Canada flights from St. Louis to Tokyo

Our best Air Canada deals on St. Louis to Tokyo flight tickets
Air Canada
Feb 6
STL4:05 pmLambert-St Louis
33h 25m
1 stop
NRT4:30 pmTokyo Narita
Feb 19
NRT6:15 pmTokyo Narita
41h 45m
2 stops
STL9:00 pmLambert-St Louis
$728
Find similar
Air Canada
Jan 16
STL4:05 pmLambert-St Louis
33h 15m
2 stops
NRT4:20 pmTokyo Narita
Jan 23
NRT6:45 pmTokyo Narita
31h 07m
2 stops
STL10:52 amLambert-St Louis
$735
Find similar
Air Canada
Dec 6
STL5:27 pmLambert-St Louis
32h 03m
2 stops
NRT4:30 pmTokyo Narita
Dec 13
NRT6:45 pmTokyo Narita
31h 01m
2 stops
STL10:46 amLambert-St Louis
$740
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Hawaiian Airlines flights from St. Louis to Tokyo

Our best Hawaiian Airlines deals on St. Louis to Tokyo flight tickets
Hawaiian Airlines
Sep 29
STL6:00 amLambert-St Louis
20h 00m
1 stop
NRT4:00 pmTokyo Narita
Oct 3
NRT6:25 pmTokyo Narita
19h 34m
1 stop
STL11:59 pmLambert-St Louis
$708
Find similar
Hawaiian Airlines
Sep 21
STL6:00 amLambert-St Louis
20h 00m
1 stop
NRT4:00 pmTokyo Narita
Oct 7
NRT6:25 pmTokyo Narita
19h 38m
1 stop
STL12:03 amLambert-St Louis
$710
Find similar
Hawaiian Airlines
Sep 29
STL6:00 amLambert-St Louis
20h 00m
1 stop
NRT4:00 pmTokyo Narita
Oct 25
NRT6:25 pmTokyo Narita
19h 38m
1 stop
STL12:03 amLambert-St Louis
$763
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 September 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

Sun 9/28

6:00 am-4:00 pm

1 stop20h 00m

Tokyo Narita

Wed 10/8

6:25 pm-12:03 am

1 stop19h 38m

$657

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Fri 2/6

7:09 am-6:30 pm

1 stop20h 21m

Tokyo Haneda

Thu 2/19

6:05 pm-6:19 pm

1 stop15h 14m

$658

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Mon 2/9

6:00 am-3:30 pm

1 stop18h 30m

Tokyo Narita

Fri 2/27

5:45 pm-10:14 pm

1 stop19h 29m

$667

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Mon 2/9

2:45 pm-4:50 am

2 stops23h 05m

Tokyo Haneda

Fri 2/27

7:40 pm-10:56 pm

2 stops18h 16m

$670

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Thu 1/15

6:00 am-5:45 pm

2 stops20h 45m

Tokyo Haneda

Fri 1/30

4:50 pm-11:10 pm

2 stops21h 20m

$719

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Fri 2/6

4:05 pm-4:30 pm

1 stop33h 25m

Tokyo Narita

Thu 2/19

6:15 pm-9:00 pm

2 stops41h 45m

$728

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Mon 12/1

6:00 am-10:00 pm

1 stop25h 00m

Tokyo Haneda

Tue 2/10

10:50 am-11:08 am

1 stop15h 18m

$733

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Mon 12/1

6:00 am-2:40 pm

1 stop17h 40m

Tokyo Narita

Tue 2/10

5:05 pm-11:59 pm

1 stop21h 54m

$734

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Fri 1/16

4:05 pm-4:20 pm

2 stops33h 15m

Tokyo Narita

Fri 1/23

6:45 pm-10:52 am

2 stops31h 07m

$735

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Thu 1/1

6:29 am-5:45 pm

1 stop20h 16m

Tokyo Haneda

Sat 1/31

5:20 pm-11:10 pm

1 stop20h 50m

$765

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 $759, 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 August is your next best option. Flight prices from St. Louis to Tokyo during August average around $822.

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 3% 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 September 2025, prices for St. Louis to Tokyo flights are approximately 24% 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 16h 41m.

  • 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
7.2
10,000 reviews
Search American Airlines flights
Air CanadaPriceFrom $629Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
Japan AirlinesPriceFrom $691Free CancellationRating
8.3
1,559 reviews
Search Japan Airlines flights
ANAPriceFrom $703Free CancellationRating
8.4
964 reviews
Search ANA flights
United AirlinesPriceFrom $716Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
DeltaPriceFrom $723Free CancellationRating
7.9
7,961 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
Atami
Kamakura
Yokosuka
Fujisawa
Izu
Saitama
Fujiyoshida
Kusatsu
Yamanouchi
Kawagoe
Tsukuba
Numazu
Karuizawa
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