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$327+ Cheap flights from St. Louis (STL) to Japan

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 1/25. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FUK
Nov 12 — Nov 191
Wed 11/12
Wed 11/19
1 adult, Economy
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Cheap flight deals from St. Louis to Japan

Keep the following information in mind while searching for St. Louis to Japan flight deals. Data was last updated October 13, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$697
(American Airlines)

One-way from

$327
(Hawaiian Airlines)

Popular in

June

Cheapest in

September

Average price

$855
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 Japan
Search Deals
One-way flight from Lambert-St Louis to Japan
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($235 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from St. Louis to Japan

Cheapest flights from St. Louis to Japan
Explore the most affordable flight options available from St. Louis to Japan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 13, 2025.

This United Airlines deal was found by Cheapflights users on 10/11. 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 12/310:00 amSTL - HND
1 stop16h 45mUnited Airlines
Tue 12/912:50 amHND - STL
2 stops24h 14mUnited Airlines
Deal found 10/11$745
This Delta deal was found by Cheapflights users on 10/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/72:20 pmSTL - HND
2 stops32h 45mDelta
Tue 12/164:50 pmHND - STL
2 stops17h 20mDelta
Deal found 10/11$746
This Delta deal was found by Cheapflights users on 10/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/96:39 amSTL - HND
1 stop20h 06mDelta
Wed 1/285:20 pmHND - STL
1 stop14h 30mDelta
Deal found 10/12$747
This United Airlines deal was found by Cheapflights users on 10/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/96:30 amSTL - HND
2 stops21h 45mUnited Airlines
Wed 1/2810:55 pmHND - STL
2 stops25h 27mUnited Airlines
Deal found 10/12$750
This Delta deal was found by Cheapflights users on 10/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/99:00 amSTL - HND
1 stop15h 20mDelta
Fri 1/304:50 pmHND - STL
2 stops19h 52mDelta
Deal found 10/12$751
This United Airlines deal was found by Cheapflights users on 10/11. 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.
Mon 12/15:24 pmSTL - HND
1 stop33h 21mUnited Airlines
Mon 2/912:50 amHND - STL
2 stops23h 32mUnited Airlines
Deal found 10/11$755
This Alaska Airlines deal was found by Cheapflights users on 10/11. 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 12/67:00 amSTL - NRT
1 stop18h 00mAlaska Airlines
Sat 12/136:30 pmNRT - STL
1 stop34h 57mAlaska Airlines
Deal found 10/11$759
This FlightHub deal was found by Cheapflights users on 10/13. 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.
Sun 11/166:30 amSTL - NRT
2 stops42h 50mAir Canada
Wed 12/106:15 pmNRT - STL
2 stops43h 30mAir Canada
Deal found 10/13$760
This FlightHub deal was found by Cheapflights users on 10/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/294:05 pmSTL - NRT
1 stop34h 25mAir Canada
Mon 11/106:45 pmNRT - STL
2 stops36h 02mAir Canada
Deal found 10/11$761
This FlightHub deal was found by Cheapflights users on 10/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/254:05 pmSTL - HND
1 stop33h 35mAir Canada
Wed 12/106:50 pmHND - STL
2 stops35h 50mAir Canada
Deal found 10/12$767
This Air Canada deal was found by Cheapflights users on 10/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/256:43 pmSTL - NRT
2 stops30h 47mAir Canada
Wed 12/106:45 pmNRT - STL
1 stop35h 44mAir Canada
Deal found 10/12$768
This Air Canada deal was found by Cheapflights users on 10/13. 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 10/249:15 amSTL - NRT
1 stop16h 25mAir Canada
Thu 11/66:45 pmNRT - STL
2 stops35h 44mAir Canada
Deal found 10/13$770

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Japan 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 October 13, 2025.
Use the filters below to find and compare flights from St. Louis to Japan that are best for you.

Fly from

St. Louis

Fly to

Japan

Route

Depart

Return

Price

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Sat 2/14

6:00 pm-3:20 pm

2 stops30h 20m

Tokyo Narita

Wed 2/25

5:00 pm-9:00 pm

2 stops19h 00m

$703

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Sun 3/1

7:00 am-4:00 pm

1 stop18h 00m

Tokyo Narita

Mon 3/9

6:30 pm-11:56 pm

1 stop19h 26m

$714

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Sat 2/28

2:55 pm-4:00 pm

1 stop34h 05m

Tokyo Narita

Tue 3/10

6:30 pm-11:56 pm

1 stop19h 26m

$723

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Wed 2/25

10:45 am-5:45 pm

1 stop16h 00m

Tokyo Haneda

Sat 3/7

8:00 pm-11:40 pm

1 stop18h 40m

$731

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Tue 12/9

8:30 am-4:50 pm

1 stop17h 20m

Tokyo Haneda

Wed 1/28

6:20 pm-7:27 pm

1 stop16h 07m

$745

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Wed 12/10

6:00 am-2:35 pm

1 stop17h 35m

Tokyo Haneda

Tue 1/27

5:20 pm-4:50 pm

1 stop14h 30m

$747

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Tue 12/9

9:00 am-3:20 pm

1 stop15h 20m

Tokyo Haneda

Thu 1/29

8:00 pm-8:39 pm

1 stop15h 39m

$747

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Mon 12/1

6:40 am-5:45 pm

1 stop20h 05m

Tokyo Haneda

Tue 2/10

8:00 pm-11:40 pm

1 stop18h 40m

$747

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Tue 12/9

6:39 am-5:45 pm

1 stop20h 06m

Tokyo Haneda

Wed 1/28

5:20 pm-4:50 pm

1 stop14h 30m

$747

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Tue 12/9

6:30 am-7:15 pm

2 stops21h 45m

Tokyo Haneda

Mon 1/26

12:50 am-9:22 am

2 stops23h 32m

$750

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/10

Showing 1-10 of 52 results
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Best time to book a flight from St. Louis to Japan

Have a flexible travel schedule? Discover the best time to fly to Japan 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 Japan

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

Currently, September is the cheapest month in which you can book a flight from St. Louis to Japan (average of $593). Flying from St. Louis to Japan in June is currently the most expensive (average of $932). 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 JP?

Find hourly flight availability from St. Louis to Japan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 13, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 4% on flights from St. Louis to Japan by exploring options for tickets in the evening.

Reviews of airlines servicing Japan

Get insights into the airlines that provide service to Japan. 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 Japan. Reviews last updated October 13, 2025.
Read through reviews of airlines operating flights from St. Louis to Japan, such as Japan Airlines, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very good
1,578 reviews

Crew

8.7

Boarding

8.4

Comfort

8.2

Overall

8.3

Entertainment

7.8

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

HNL - KIX

Local boy flight attendant was amazing. Super friendly and attentive.
Japan Airlines
8.3
Very good
1,578 reviews
Japan Airlines
8.3
Very good
1,578 reviews

Crew

8.7

Boarding

8.4

Comfort

8.2

Overall

8.3

Entertainment

7.8

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

HNL - KIX

Local boy flight attendant was amazing. Super friendly and attentive.
Delta
8.0
Very good
7,972 reviews
Japan Airlines
8.3
Very good
1,578 reviews

Crew

8.7

Boarding

8.4

Comfort

8.2

Overall

8.3

Entertainment

7.8

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

HNL - KIX

Local boy flight attendant was amazing. Super friendly and attentive.
United Airlines
7.4
Good
8,973 reviews
Japan Airlines
8.3
Very good
1,578 reviews

Crew

8.7

Boarding

8.4

Comfort

8.2

Overall

8.3

Entertainment

7.8

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

HNL - KIX

Local boy flight attendant was amazing. Super friendly and attentive.
American Airlines
7.2
Good
11,043 reviews
Japan Airlines
8.3
Very good
1,578 reviews

Crew

8.7

Boarding

8.4

Comfort

8.2

Overall

8.3

Entertainment

7.8

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

HNL - KIX

Local boy flight attendant was amazing. Super friendly and attentive.
Air Canada
7.1
Good
10,286 reviews
Japan Airlines
8.3
Very good
1,578 reviews

Crew

8.7

Boarding

8.4

Comfort

8.2

Overall

8.3

Entertainment

7.8

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

HNL - KIX

Local boy flight attendant was amazing. Super friendly and attentive.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Japan. 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 Japan?

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Japan. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

  • How long is the flight from St. Louis to Japan?

    Airlines like United Airlines, Alaska Airlines, and Delta fly from St. Louis to Japan in about 16h. The time it takes to get you to your destination can typically vary by up to 14h 20m. St. Louis and Japan are separated by a distance of 6383 mi. This flight may include one or multiple stops.

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

    The cheapest airlines for a one-way flight from St. Louis to Japan are Hawaiian Airlines ($327), ANA ($381), and American Airlines ($383).

  • What are the most popular routes from St. Louis to Japan?

    While some choose either Lambert-St Louis - Tokyo Haneda or Lambert-St Louis - Okinawa Naha, Lambert-St Louis - Tokyo Narita is the most popular route from St. Louis to Japan.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Japan 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 Japan?

    Currently, September is the cheapest month in which you can book a flight from St. Louis to Japan (average of $593). Flying from St. Louis to Japan in June is currently the most expensive (average of $932). 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

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Top 6 airlines flying from St. Louis to Japan

Discover the top 6 airlines that operate flights from St. Louis to Japan. 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 October 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$593Average$930FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$629Average$886FlexibilityNo cancel feeOn-time67%
Japan AirlinesCheapest$691Average$894FlexibilityNo cancel feeOn-time79%
ANACheapest$703Average$1,021FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$716Average$1,097FlexibilityNo cancel feeOn-time69%
DeltaCheapest$723Average$995FlexibilityNo cancel feeOn-timeN/A

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