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$416+ 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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — TYO
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Tokyo are usually found in September or February, booked 19 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 June 12, 2025.

Round-trip from

$959
(United Airlines)

One-way from

$416
(Air Canada)

Popular in

June

Cheapest in

September

Average price

$1,311
From Lambert-St Louis to Tokyo (TYO)
Search Deals
One-way flight from Lambert-St Louis to Tokyo (TYO)
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Highest demand for flights based on searches. 16% potential increase in price ($192 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Travelocity deal was found by Cheapflights users on 6/11. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/235:18 pmSTL - NRT
2 stops55h 42mAir Canada
Sat 1/106:00 pmNRT - STL
2 stops36h 21mAir Canada
Deal found 6/11$957
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Wed 8/275:15 amSTL - HND
2 stops20h 00mUnited Airlines
Thu 8/285:15 pmHND - STL
1 stop18h 17mUnited Airlines
Deal found 6/11$959
This KAYAK deal was found by Cheapflights users on 6/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/17:19 amSTL - HND
1 stop21h 06mJapan Airlines
Sat 11/158:25 pmHND - STL
1 stop18h 32mJapan Airlines
Deal found 6/11$963
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 10/43:57 pmSTL - NRT
1 stop34h 03mAlaska Airlines
Mon 10/206:25 pmNRT - STL
1 stop19h 34mAlaska Airlines
Deal found 6/11$965
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Wed 8/275:15 amSTL - NRT
2 stops18h 45mUnited Airlines
Thu 8/285:00 pmNRT - STL
2 stops20h 53mUnited Airlines
Deal found 6/11$967
This KAYAK deal was found by Cheapflights users on 6/9. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/812:25 pmSTL - NRT
1 stop36h 35mANA
Mon 10/135:00 pmNRT - STL
1 stop35h 27mANA
Deal found 6/9$971
This Gurufare deal was found by Cheapflights users on 6/10. 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.
Fri 10/179:20 amSTL - HND
1 stop16h 35mANA
Thu 10/3010:25 amHND - STL
1 stop17h 55mANA
Deal found 6/10$974
This Air Canada deal was found by Cheapflights users on 6/10. 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.
Fri 7/259:15 amSTL - HND
1 stop16h 35mAir Canada
Wed 8/136:10 pmHND - STL
2 stops39h 50mAir Canada
Deal found 6/10$981
This American Airlines deal was found by Cheapflights users on 6/11. 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 11/97:15 amSTL - NRT
1 stop17h 15mAmerican Airlines
Wed 11/126:10 pmNRT - STL
2 stops18h 31mAmerican Airlines
Deal found 6/11$984
This Delta deal was found by Cheapflights users on 6/10. 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 9/16:00 amSTL - HND
2 stops20h 15mDelta
Wed 9/103:15 pmHND - STL
2 stops20h 47mDelta
Deal found 6/10$988
This ANA deal was found by Cheapflights users on 6/12. 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 ANA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/96:15 amSTL - NRT
1 stop18h 15mMultiple Airlines
Wed 11/124:45 pmNRT - STL
1 stop15h 18mMultiple Airlines
Deal found 6/12$996
This Delta deal was found by Cheapflights users on 6/10. 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.
Wed 9/177:30 amSTL - NRT
2 stops23h 35mDelta
Wed 9/242:00 pmNRT - STL
2 stops23h 02mDelta
Deal found 6/10$998

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 June 12, 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

Wed 8/27

5:15 am-3:15 pm

2 stops20h 00m

Tokyo Haneda

Thu 8/28

5:15 pm-9:32 pm

1 stop18h 17m

$959

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Sun 7/20

1:30 pm-2:55 pm

2 stops59h 25m

Tokyo Narita

Sat 7/26

5:05 pm-12:46 pm

2 stops33h 41m

$962

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Sat 10/4

3:57 pm-4:00 pm

1 stop34h 03m

Tokyo Narita

Mon 10/20

6:25 pm-11:59 pm

1 stop19h 34m

$965

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Wed 8/27

5:15 am-2:00 pm

2 stops18h 45m

Tokyo Narita

Thu 8/28

5:00 pm-11:53 pm

2 stops20h 53m

$967

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Wed 10/8

12:25 pm-3:00 pm

1 stop36h 35m

Tokyo Narita

Mon 10/13

5:00 pm-2:27 pm

1 stop35h 27m

$971

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Fri 7/25

9:15 am-3:50 pm

1 stop16h 35m

Tokyo Haneda

Wed 8/13

6:10 pm-8:00 pm

2 stops39h 50m

$981

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Sun 11/9

7:15 am-3:30 pm

1 stop17h 15m

Tokyo Narita

Wed 11/12

6:10 pm-9:41 pm

2 stops18h 31m

$984

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Mon 9/1

6:00 am-4:15 pm

2 stops20h 15m

Tokyo Haneda

Wed 9/10

3:15 pm-10:02 pm

2 stops20h 47m

$988

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Sun 11/9

6:15 am-3:30 pm

1 stop18h 15m

Tokyo Narita

Wed 11/12

4:45 pm-5:03 pm

1 stop15h 18m

$996

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Wed 9/17

7:30 am-9:05 pm

2 stops23h 35m

Tokyo Narita

Wed 9/24

2:00 pm-11:02 pm

2 stops23h 02m

$998

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 33 results
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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 June 9, 2025.

Booking 19 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 $842). 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 June 12, 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 June 12, 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
1,088 reviews

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

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
1,088 reviews
Korean Air
8.4
Very good
1,088 reviews

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

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
1,490 reviews
Korean Air
8.4
Very good
1,088 reviews

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

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
882 reviews
Korean Air
8.4
Very good
1,088 reviews

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

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
10,000 reviews
Korean Air
8.4
Very good
1,088 reviews

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

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
7,946 reviews
Korean Air
8.4
Very good
1,088 reviews

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

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 United Airlines is currently your cheapest option to Tokyo, with prices starting at $959. Additional round-trip tickets that might be worth considering are offered by Air Canada and Alaska Airlines, with the lowest prices starting at $962 and $965, respectively. United Airlines is 5% 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 Air Canada. According to our data, you can fly for as low as $416. Users have also found prices from $429 and $433 on Alaska Airlines and United Airlines, 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 $842). 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
Yokosuka
Odawara
Atami
Yamanouchi
Yamanashi
Sagamihara

Browse thousands of different options on Cheapflights for your next trip

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$629Average$945FlexibilityNo cancel feeOn-time67%
Japan AirlinesCheapest$691Average$947FlexibilityNo cancel feeOn-time79%
American AirlinesCheapest$720Average$1,017FlexibilityNo cancel feeOn-time71%
DeltaCheapest$734Average$1,385FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$739Average$1,121FlexibilityNo cancel feeOn-time69%
ANACheapest$880Average$1,160FlexibilityNo cancel feeOn-time80%

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