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Osaka

$331+ Cheap flights from Missouri to Osaka (OSA)

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 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — OSA
Jun 21 — Jun 281
Sat 6/21
Sat 6/28
1 adult, Economy
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Cheap flight deals from Missouri to Osaka

Keep the following information in mind while searching for Missouri to Osaka flight deals. Data was last updated June 16, 2025.

Round-trip from

$624
(Air Canada)

One-way from

$331
(Air Canada)

Popular in

May

Cheapest in

February

Average price

$1,893
From Missouri to Osaka (OSA)
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One-way flight from Missouri to Osaka (OSA)
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Highest demand for flights based on searches. 24% potential increase in price ($532 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($93 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 Missouri to Osaka

Cheapest flights from Missouri to Osaka
Explore the most affordable flight options available from Missouri to Osaka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 16, 2025.

This Air Canada deal was found by Cheapflights users on 6/14. 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.
Sat 9/209:15 amSTL - KIX
1 stop17h 10mAir Canada
Sun 9/286:05 pmKIX - STL
2 stops30h 44mAir Canada
Deal found 6/14$624
This Air Canada deal was found by Cheapflights users on 6/15. 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 11/164:15 pmSTL - ITM
2 stops35h 55mAir Canada
Thu 12/43:00 pmITM - STL
2 stops39h 26mAir Canada
Deal found 6/15$641
This United Airlines deal was found by Cheapflights users on 6/15. 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.
Sun 11/166:43 pmSTL - KIX
2 stops30h 52mUnited Airlines
Fri 12/56:30 pmKIX - STL
2 stops32h 43mUnited Airlines
Deal found 6/15$718
This Air Canada deal was found by Cheapflights users on 6/14. 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.
Mon 12/84:15 pmSTL - KIX
2 stops39h 05mMultiple Airlines
Sat 12/203:40 pmKIX - STL
2 stops38h 46mMultiple Airlines
Deal found 6/14$756
This United Airlines deal was found by Cheapflights users on 6/15. 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.
Sun 11/165:29 pmSTL - ITM
2 stops33h 41mUnited Airlines
Mon 12/11:00 pmITM - STL
2 stops24h 47mUnited Airlines
Deal found 6/15$827
This FlightHub deal was found by Cheapflights users on 6/15. 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 11/167:49 amSTL - ITM
2 stops19h 51mJapan Airlines
Thu 12/48:30 amITM - STL
2 stops17h 36mJapan Airlines
Deal found 6/15$840
This FlightHub deal was found by Cheapflights users on 6/14. 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 9/203:20 pmSTL - ITM
2 stops28h 45mANA
Sun 9/287:30 amITM - STL
2 stops20h 57mANA
Deal found 6/14$929
This American Airlines deal was found by Cheapflights users on 6/14. 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.
Mon 7/78:50 amSTL - KIX
1 stop19h 55mAmerican Airlines
Mon 9/85:55 pmKIX - STL
1 stop19h 04mAmerican Airlines
Deal found 6/14$953
This United deal was found by Cheapflights users on 6/14. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/298:05 amSTL - ITM
2 stops20h 05mMultiple Airlines
Thu 10/912:00 pmITM - STL
3 stops23h 59mMultiple Airlines
Deal found 6/14$961
This KAYAK deal was found by Cheapflights users on 6/14. 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.
Tue 9/309:20 amSTL - KIX
2 stops22h 30mANA
Thu 10/96:45 amKIX - STL
2 stops21h 42mANA
Deal found 6/14$961
This KAYAK deal was found by Cheapflights users on 6/14. 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.
Sun 9/286:20 amSTL - KIX
1 stop22h 25mJapan Airlines
Wed 10/86:45 amKIX - STL
2 stops23h 37mJapan Airlines
Deal found 6/14$1,004
This Mytrip deal was found by Cheapflights users on 6/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/96:00 amMCI - KIX
2 stops23h 30mMultiple Airlines
Wed 8/207:35 amKIX - MCI
3 stops44h 08mMultiple Airlines
Deal found 6/15$1,100

Cheapflights Fare Finder

Customize your flight search to find flights from Missouri to Osaka 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 16, 2025.
Use the filters below to find and compare flights from Missouri to Osaka that are best for you.

Fly from

Missouri

Fly to

Osaka

Route

Depart

Return

Price

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Sat 9/20

9:15 am-4:25 pm

1 stop17h 10m

Osaka Kansai Intl

Sun 9/28

6:05 pm-10:49 am

2 stops30h 44m

$624

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Sun 11/16

4:15 pm-7:10 pm

2 stops35h 55m

Osaka Itami

Thu 12/4

3:00 pm-3:26 pm

2 stops39h 26m

$641

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Sun 11/16

6:43 pm-4:35 pm

2 stops30h 52m

Osaka Kansai Intl

Fri 12/5

6:30 pm-12:13 pm

2 stops32h 43m

$718

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Mon 12/8

4:15 pm-10:20 pm

2 stops39h 05m

Osaka Kansai Intl

Sat 12/20

3:40 pm-3:26 pm

2 stops38h 46m

$756

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Sun 11/16

5:29 pm-6:10 pm

2 stops33h 41m

Osaka Itami

Mon 12/1

1:00 pm-10:47 pm

2 stops24h 47m

$827

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Sun 11/16

7:49 am-6:40 pm

2 stops19h 51m

Osaka Itami

Thu 12/4

8:30 am-11:06 am

2 stops17h 36m

$840

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Sat 9/20

3:20 pm-10:05 am

2 stops28h 45m

Osaka Itami

Sun 9/28

7:30 am-2:27 pm

2 stops20h 57m

$929

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Mon 7/7

8:50 am-6:45 pm

1 stop19h 55m

Osaka Kansai Intl

Mon 9/8

5:55 pm-10:59 pm

1 stop19h 04m

$953

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Mon 9/29

8:05 am-6:10 pm

2 stops20h 05m

Osaka Itami

Thu 10/9

12:00 pm-9:59 pm

3 stops23h 59m

$961

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Tue 9/30

9:20 am-9:50 pm

2 stops22h 30m

Osaka Kansai Intl

Wed 10/8

7:00 am-2:27 pm

2 stops21h 27m

$961

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

Showing 1-10 of 35 results
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Best time to book a flight from Missouri to Osaka

Have a flexible travel schedule? Discover the best time to fly to Osaka from Missouri 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 Missouri to Osaka

Rainfall in Osaka by month

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

In terms of precipitation, rainfall in Osaka ranges from 1.6 - 7.9 inches per month. June is typically the wettest month, when rainfall can reach 7.9 in. January is typically the driest time to visit Osaka when rainfall is around 1.6 in.

Temperature in Osaka by month

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

If weather is an important factor for your trip to Osaka, 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 84.2 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 Osaka

Get insights into the airlines that provide service to Osaka. 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 Osaka. Reviews last updated June 16, 2025.
Read reviews from past customers who have flown Japan Airlines, China Airlines and ANA from Missouri to Osaka. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very good
1,494 reviews

Overall

8.3

Boarding

8.4

Food

7.7

Crew

8.7

Entertainment

7.8

Comfort

8.2

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

DFW - NRT

This flight was operated by American Airlines. The food was barely tolerable. Mid flight sandwich was ice cold, could not be bothered to warm it up. Staff did not seem to like their jobs very much. Too many seats packed in to maximize profit. A true “cattle car” experience. Subsequent flight from Tokyo to HCMC was on Japan Airlines which was excellent. No comparison between JAL and AA. Unfortunately that’s just the way service is in America nowadays.
Japan Airlines
8.3
Very good
1,494 reviews
Japan Airlines
8.3
Very good
1,494 reviews

Overall

8.3

Boarding

8.4

Food

7.7

Crew

8.7

Entertainment

7.8

Comfort

8.2

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

DFW - NRT

This flight was operated by American Airlines. The food was barely tolerable. Mid flight sandwich was ice cold, could not be bothered to warm it up. Staff did not seem to like their jobs very much. Too many seats packed in to maximize profit. A true “cattle car” experience. Subsequent flight from Tokyo to HCMC was on Japan Airlines which was excellent. No comparison between JAL and AA. Unfortunately that’s just the way service is in America nowadays.
China Airlines
8.3
Very good
742 reviews
Japan Airlines
8.3
Very good
1,494 reviews

Overall

8.3

Boarding

8.4

Food

7.7

Crew

8.7

Entertainment

7.8

Comfort

8.2

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

DFW - NRT

This flight was operated by American Airlines. The food was barely tolerable. Mid flight sandwich was ice cold, could not be bothered to warm it up. Staff did not seem to like their jobs very much. Too many seats packed in to maximize profit. A true “cattle car” experience. Subsequent flight from Tokyo to HCMC was on Japan Airlines which was excellent. No comparison between JAL and AA. Unfortunately that’s just the way service is in America nowadays.
ANA
8.3
Very good
886 reviews
Japan Airlines
8.3
Very good
1,494 reviews

Overall

8.3

Boarding

8.4

Food

7.7

Crew

8.7

Entertainment

7.8

Comfort

8.2

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

DFW - NRT

This flight was operated by American Airlines. The food was barely tolerable. Mid flight sandwich was ice cold, could not be bothered to warm it up. Staff did not seem to like their jobs very much. Too many seats packed in to maximize profit. A true “cattle car” experience. Subsequent flight from Tokyo to HCMC was on Japan Airlines which was excellent. No comparison between JAL and AA. Unfortunately that’s just the way service is in America nowadays.
Cathay Pacific
7.5
Good
893 reviews
Japan Airlines
8.3
Very good
1,494 reviews

Overall

8.3

Boarding

8.4

Food

7.7

Crew

8.7

Entertainment

7.8

Comfort

8.2

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

DFW - NRT

This flight was operated by American Airlines. The food was barely tolerable. Mid flight sandwich was ice cold, could not be bothered to warm it up. Staff did not seem to like their jobs very much. Too many seats packed in to maximize profit. A true “cattle car” experience. Subsequent flight from Tokyo to HCMC was on Japan Airlines which was excellent. No comparison between JAL and AA. Unfortunately that’s just the way service is in America nowadays.
Qatar Airways
7.4
Good
3,585 reviews
Japan Airlines
8.3
Very good
1,494 reviews

Overall

8.3

Boarding

8.4

Food

7.7

Crew

8.7

Entertainment

7.8

Comfort

8.2

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

DFW - NRT

This flight was operated by American Airlines. The food was barely tolerable. Mid flight sandwich was ice cold, could not be bothered to warm it up. Staff did not seem to like their jobs very much. Too many seats packed in to maximize profit. A true “cattle car” experience. Subsequent flight from Tokyo to HCMC was on Japan Airlines which was excellent. No comparison between JAL and AA. Unfortunately that’s just the way service is in America nowadays.

Related info for your journey

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

  • What are the cheapest airlines to fly from Missouri to Osaka one-way?

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as $331. Users have also found prices from $449 and $651 on United Airlines and Japan Airlines, respectively.

  • What are the most popular routes from Missouri to Osaka?

    The most popular flight routes from Missouri to Osaka are Lambert-St Louis - Osaka Kansai Intl, Kansas City - Osaka Kansai Intl and Lambert-St Louis - Osaka Itami.

  • Can I find deals for flights from Missouri to Osaka that include hotel bookings?

    Yes. In addition to deals on Missouri to Osaka flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missouri to Osaka?

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

  • Can I find deals for business class flights from Missouri to Osaka?

    Yes. Cheapflights offers flight deals from Missouri to Osaka 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 Missouri to Osaka?

    Currently, February is the cheapest month in which you can book a flight from Missouri to Osaka (average of $888). Flying from Missouri to Osaka in June is currently the most expensive (average of $1,324). 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 Missouri?

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