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$431+ Cheap flights from St. Louis (STL) to Tokyo (TYO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/2. Fares are subject to change and may not be available on all flights or dates of travel.
STL — TYO
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Tokyo are usually found in February or January, booked 47 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from St. Louis to Tokyo

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Tokyo (TYO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 30, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$911
(Delta)

One-way from

$431
(American Airlines)

Popular in

July

Cheapest in

February

Average price

$1,072
Provider with most accurate pricing for Lambert-St Louis-Tokyo (TYO) flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Tokyo (TYO) flights.
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From Lambert-St Louis to Tokyo (TYO)
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One-way flight from Lambert-St Louis to Tokyo (TYO)
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Highest demand for flights based on searches. 14% potential increase in price ($177 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from St. Louis to Tokyo

Cheapest flights from St. Louis to Tokyo
Explore the most affordable flight options available from St. Louis to Tokyo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/13:15 pmSTL - HND
2 stops23h 25mUnited Airlines
Wed 11/194:25 pmHND - STL
2 stops19h 34mUnited Airlines
Deal found 4/29$909
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/17:05 pmSTL - HND
2 stops28h 00mDelta
Wed 9/104:20 pmHND - STL
2 stops21h 19mDelta
Deal found 4/29$911
This American Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/95:57 pmSTL - NRT
1 stop30h 33mAmerican Airlines
Wed 11/125:30 pmNRT - STL
1 stop15h 47mAmerican Airlines
Deal found 4/29$914
This American Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/37:00 amSTL - HND
1 stop18h 55mAmerican Airlines
Tue 8/2611:30 amHND - STL
1 stop15h 23mAmerican Airlines
Deal found 4/29$938
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/196:00 amSTL - NRT
1 stop19h 25mUnited Airlines
Thu 8/145:25 pmNRT - STL
2 stops30h 06mUnited Airlines
Deal found 4/29$944
This FlightHub deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/309:39 amSTL - HND
1 stop16h 16mANA
Fri 5/210:25 amHND - STL
1 stop19h 24mANA
Deal found 4/28$945
This CheapOair deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1612:28 pmSTL - HND
2 stops37h 22mAir Canada
Sat 11/16:50 pmHND - STL
2 stops32h 30mAir Canada
Deal found 4/29$985
This Alaska Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/12:55 pmSTL - NRT
1 stop35h 05mAlaska Airlines
Wed 11/196:25 pmNRT - STL
1 stop20h 31mAlaska Airlines
Deal found 4/29$993
This FlightHub deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/106:52 amSTL - NRT
1 stop19h 43mJapan Airlines
Tue 5/205:20 pmNRT - STL
1 stop19h 44mJapan Airlines
Deal found 4/29$995
This Air Canada deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/14:05 pmSTL - NRT
1 stop33h 40mAir Canada
Wed 10/296:45 pmNRT - STL
1 stop34h 41mAir Canada
Deal found 4/29$1,001
This Japan Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/85:26 amSTL - NRT
1 stop19h 04mMultiple Airlines
Sat 12/206:30 pmNRT - STL
1 stop29h 12mMultiple Airlines
Deal found 4/29$1,006
This Gurufare deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/98:50 amSTL - HND
2 stops24h 00mKorean Air
Wed 9/172:00 amHND - STL
2 stops35h 02mKorean Air
Deal found 4/29$1,099

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated April 30, 2025.
Use the filters below to find and compare flights from St. Louis to Tokyo that are best for you.

Fly from

St. Louis

Fly to

Tokyo

Route

Depart

Return

Price

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Mon 9/1

7:05 pm-1:05 pm

2 stops28h 00m

Tokyo Haneda

Wed 9/10

4:20 pm-11:39 pm

2 stops21h 19m

$911

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sun 8/3

7:00 am-3:55 pm

1 stop18h 55m

Tokyo Haneda

Tue 8/26

11:30 am-12:53 pm

1 stop15h 23m

$938

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sun 8/3

8:15 am-3:25 pm

1 stop17h 10m

Tokyo Haneda

Tue 8/26

6:25 pm-11:53 pm

2 stops19h 28m

$943

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Sat 7/19

6:00 am-3:25 pm

1 stop19h 25m

Tokyo Narita

Thu 8/14

5:25 pm-9:31 am

2 stops30h 06m

$944

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Thu 10/16

12:28 pm-3:50 pm

2 stops37h 22m

Tokyo Haneda

Sat 11/1

6:50 pm-1:20 pm

2 stops32h 30m

$985

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Sat 5/10

6:52 am-4:35 pm

1 stop19h 43m

Tokyo Narita

Tue 5/20

5:20 pm-11:04 pm

1 stop19h 44m

$995

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Wed 10/1

4:05 pm-3:45 pm

1 stop33h 40m

Tokyo Narita

Wed 10/29

6:45 pm-3:26 pm

1 stop34h 41m

$1,001

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Thu 5/29

5:19 am-3:35 pm

2 stops20h 16m

Tokyo Narita

Thu 6/5

6:30 pm-11:19 pm

1 stop18h 49m

$1,031

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Tue 9/9

8:50 am-10:50 pm

2 stops24h 00m

Tokyo Haneda

Wed 9/17

2:00 am-11:02 pm

2 stops35h 02m

$1,099

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Tue 5/27

6:52 am-2:20 pm

1 stop17h 28m

Tokyo Haneda

Thu 6/12

11:30 am-12:51 pm

1 stop15h 21m

$1,158

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 34 results
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Compare providers for flights from St. Louis to Tokyo

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Tokyo in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Tokyo flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on St. Louis-Tokyo flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from St. Louis-Tokyo flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Tokyo flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Tokyo flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Tokyo

Have a flexible travel schedule? Discover the best time to fly to Tokyo from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Tokyo

How far ahead should I book a flight from St. Louis to Tokyo?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Tokyo. Price data was last updated on April 25, 2025.

Booking 47 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Tokyo. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from St. Louis to Tokyo?

Currently, February is the cheapest month in which you can book a flight from St. Louis to Tokyo (average of $843). Flying from St. Louis to Tokyo in June is currently the most expensive (average of $1,218). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to TYO?

Find hourly flight availability from St. Louis to Tokyo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 30, 2025.

One of the essential ways to save on airfare from St. Louis to Tokyo is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 16% on airfare.

Rainfall in Tokyo by month

Plan your trip to Tokyo by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Tokyo ranges from 2.0 - 8.3 inches per month. September is typically the wettest month, when rainfall can reach 8.3 in. January is typically the driest time to visit Tokyo when rainfall is around 2.0 in.

Temperature in Tokyo by month

Plan your trip to Tokyo by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Tokyo, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 42.8 F).

Reviews of airlines servicing Tokyo

Get insights into the airlines that provide service to Tokyo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Tokyo. Reviews last updated April 30, 2025.
Peruse reviews from past customers who have flown with Korean Air, Japan Airlines and ANA from St. Louis to Tokyo to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,066 reviews

Comfort

8.3

Food

8.1

Crew

8.7

Overall

8.4

Entertainment

8.2

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,066 reviews
Korean Air
8.4
Very good
1,066 reviews

Comfort

8.3

Food

8.1

Crew

8.7

Overall

8.4

Entertainment

8.2

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Japan Airlines
8.3
Very good
1,459 reviews
Korean Air
8.4
Very good
1,066 reviews

Comfort

8.3

Food

8.1

Crew

8.7

Overall

8.4

Entertainment

8.2

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
ANA
8.3
Very good
852 reviews
Korean Air
8.4
Very good
1,066 reviews

Comfort

8.3

Food

8.1

Crew

8.7

Overall

8.4

Entertainment

8.2

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Alaska Airlines
8.0
Very good
9,961 reviews
Korean Air
8.4
Very good
1,066 reviews

Comfort

8.3

Food

8.1

Crew

8.7

Overall

8.4

Entertainment

8.2

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Delta
8.0
Very good
7,929 reviews
Korean Air
8.4
Very good
1,066 reviews

Comfort

8.3

Food

8.1

Crew

8.7

Overall

8.4

Entertainment

8.2

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Tokyo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Tokyo?

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Tokyo. On average, Lambert-St Louis has 0 outbound flights to Tokyo per day from 6 airlines. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

  • What are the cheapest airlines flying from St. Louis to Tokyo round-trip?

    Flying on Delta is currently your cheapest option to Tokyo, with prices starting at $911. Additional round-trip tickets that might be worth considering are offered by American Airlines and United Airlines, with the lowest prices starting at $938 and $943, respectively. Delta is 14% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from St. Louis to Tokyo one-way?

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $431. Users have also found prices from $437 and $482 on United Airlines and Air Canada, respectively.

  • Can I find deals for flights from St. Louis to Tokyo that include hotel bookings?

    Yes. In addition to deals on St. Louis to Tokyo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Tokyo?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Tokyo.

  • Can I find deals for business class flights from St. Louis to Tokyo?

    Yes. Cheapflights offers flight deals from St. Louis to Tokyo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Tokyo?

    Currently, February is the cheapest month in which you can book a flight from St. Louis to Tokyo (average of $843). Flying from St. Louis to Tokyo in June is currently the most expensive (average of $1,218). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Saitama
Urayasu
Numazu
Chiba
Hakone
Kawasaki
Odawara
Yamanouchi
Atami
Yamanashi
Sagamihara

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Top 6 airlines flying from St. Louis to Tokyo

Discover the top 6 airlines that operate flights from St. Louis to Tokyo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest$691Average$930FlexibilityNo cancel feeOn-time79%
Air CanadaCheapest$712Average$975FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$720Average$1,068FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$738Average$1,163FlexibilityNo cancel feeOn-time69%
DeltaCheapest$738Average$1,399FlexibilityNo cancel feeOn-timeN/A
ANACheapest$880Average$1,153FlexibilityNo cancel feeOn-time80%

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