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St. Louis

$417+ Cheap flights from Japan to St. Louis (STL)

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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
FUK — STL
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Japan to St. Louis

Keep the following information in mind while searching for Japan to St. Louis flight deals. Data was last updated September 11, 2025.

Round-trip from

$872
(Delta)

One-way from

$417
(American Airlines)

Popular in

August

Cheapest in

March

Average price

$809
From Japan to Lambert-St Louis
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One-way flight from Japan to Lambert-St Louis
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Highest demand for flights based on searches. 18% potential increase in price ($239 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($68 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Japan to St. Louis

Cheapest flights from Japan to St. Louis
Explore the most affordable flight options available from Japan to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Delta deal was found by Cheapflights users on 9/11. 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.
Mon 10/275:20 pmHND - STL
2 stops31h 06mDelta
Mon 11/36:00 amSTL - HND
1 stop17h 35mDelta
Deal found 9/11$798
This Delta deal was found by Cheapflights users on 9/11. 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.
Fri 12/194:50 pmHND - STL
2 stops23h 01mDelta
Thu 1/16:29 amSTL - HND
1 stop20h 16mDelta
Deal found 9/11$987
This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/123:15 pmHND - STL
1 stop19h 08mDelta
Thu 10/166:00 amSTL - HND
1 stop17h 05mDelta
Deal found 9/9$1,086
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Fri 12/194:25 pmHND - STL
1 stop21h 05mUnited Airlines
Thu 1/18:15 amSTL - HND
1 stop17h 35mUnited Airlines
Deal found 9/11$1,224
This Expedia deal was found by Cheapflights users on 9/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/241:30 amHND - STL
2 stops36h 33mMultiple Airlines
Sat 11/13:14 pmSTL - HND
1 stop36h 31mMultiple Airlines
Deal found 9/10$1,288
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/255:15 pmHND - STL
1 stop15h 02mUnited Airlines
Sat 11/16:43 pmSTL - HND
1 stop33h 02mUnited Airlines
Deal found 9/10$1,448
This Trip.com deal was found by Cheapflights users on 9/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2512:15 pmOKA - STL
2 stops25h 48mMultiple Airlines
Sat 11/15:29 pmSTL - OKA
2 stops28h 26mMultiple Airlines
Deal found 9/10$1,525
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Fri 12/191:05 pmHND - STL
2 stops21h 17mAmerican Airlines
Thu 1/16:00 amSTL - HND
2 stops21h 30mAmerican Airlines
Deal found 9/11$1,552
This Air Canada deal was found by Cheapflights users on 9/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/126:10 pmHND - STL
2 stops30h 39mAir Canada
Thu 10/165:00 amSTL - HND
2 stops20h 50mAir Canada
Deal found 9/9$1,647
This Alaska Airlines deal was found by Cheapflights users on 9/11. 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.
Mon 10/279:20 pmHND - STL
2 stops31h 58mAlaska Airlines
Mon 11/37:00 amSTL - HND
2 stops43h 10mAlaska Airlines
Deal found 9/11$1,733

Cheapflights Fare Finder

 
Customize your flight search to find flights from Japan to St. Louis 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 September 11, 2025.
Use the filters below to find and compare flights from Japan to St. Louis that are best for you.

Fly from

Japan

Fly to

St. Louis

Route

Depart

Return

Price

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Mon 10/27

5:20 pm-11:06 pm

1 stop19h 46m

Lambert-St Louis

Mon 11/3

6:00 am-2:35 pm

1 stop17h 35m

$798

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Fri 12/19

4:50 pm-12:51 am

2 stops23h 01m

Lambert-St Louis

Thu 1/1

6:29 am-5:45 pm

1 stop20h 16m

$987

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Sun 10/12

3:15 pm-8:23 pm

1 stop19h 08m

Lambert-St Louis

Thu 10/16

6:00 am-1:05 pm

1 stop17h 05m

$1,086

FukuokaSt. Louis

FUK - STL

FUKSTL

Fukuoka

Thu 2/19

3:25 pm-3:29 pm

2 stops39h 04m

Lambert-St Louis

Sun 2/22

4:05 pm-8:05 pm

2 stops37h 00m

$1,089

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Fri 3/6

6:50 pm-3:29 pm

1 stop35h 39m

Lambert-St Louis

Tue 3/10

4:05 pm-4:40 pm

1 stop34h 35m

$1,203

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Fri 12/19

4:25 pm-10:30 pm

1 stop21h 05m

Lambert-St Louis

Thu 1/1

8:15 am-4:50 pm

1 stop17h 35m

$1,224

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Fri 10/24

1:30 am-12:03 am

2 stops36h 33m

Lambert-St Louis

Sat 11/1

3:14 pm-5:45 pm

1 stop36h 31m

$1,288

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Fri 3/6

5:20 pm-4:50 pm

1 stop14h 30m

Lambert-St Louis

Tue 3/10

7:05 pm-2:35 pm

1 stop29h 30m

$1,445

TokyoSt. Louis

HND - STL

HNDSTL

Tokyo Haneda

Sat 10/25

5:15 pm-6:17 pm

1 stop15h 02m

Lambert-St Louis

Sat 11/1

6:43 pm-4:30 pm

2 stops31h 47m

$1,448

OkinawaSt. Louis

OKA - STL

OKASTL

Okinawa Naha

Sat 10/25

12:15 pm-12:03 am

2 stops25h 48m

Lambert-St Louis

Sat 11/1

5:29 pm-11:55 am

2 stops28h 26m

$1,525

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 32 results
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Best time to book a flight from Japan to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Japan 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 Japan to St. Louis

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

Find hourly flight availability from Japan to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

When flying from Japan to St. Louis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated September 11, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Japan to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Air Canada
7.1
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Related info for your journey

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

    If you book a flight to St. Louis from Japan, you will be flying to Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.

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

    Delta and Air Canada can get you from Japan to St. Louis in just under 19h 46m. Your travel time can differ by up to 19h 18m. Japan and St. Louis are separated by a distance of 6383 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The cheapest airlines for a one-way flight from Japan to St. Louis are American Airlines ($417), Delta ($422), and United Airlines ($463).

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

    The most popular route from Japan to St. Louis is Tokyo Haneda - Lambert-St Louis. You may also consider Okinawa Naha - Lambert-St Louis or Fukuoka - Lambert-St Louis.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Japan to St. Louis (average of $311). Flying from Japan to St. Louis in March is currently the most expensive (average of $356). 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
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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Top 3 airlines flying from Japan to St. Louis

Discover the top 3 airlines that operate flights from Japan to St. Louis. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$721Average$984FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$787Average$1,235FlexibilityNo cancel feeOn-time69%
DeltaCheapest$803Average$995FlexibilityNo cancel feeOn-timeN/A

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