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Osaka

$408+ 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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — OSA
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
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 September 17, 2025.

Round-trip from

$723
(United Airlines)

One-way from

$408
(FlightHub)

Popular in

January

Cheapest in

September

Average price

$584
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. 14% potential increase in price ($227 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% 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 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 September 17, 2025.

This United Airlines deal was found by Cheapflights users on 9/15. 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.
Mon 9/155:49 pmSTL - KIX
1 stop31h 01mUnited Airlines
Thu 9/254:50 pmKIX - STL
2 stops19h 10mUnited Airlines
Deal found 9/15$729
This United Airlines deal was found by Cheapflights users on 9/16. 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 9/275:28 pmSTL - KIX
2 stops31h 22mUnited Airlines
Wed 10/14:50 pmKIX - STL
2 stops31h 02mUnited Airlines
Deal found 9/16$741
This FlightHub deal was found by Cheapflights users on 9/16. 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.
Mon 12/83:22 pmSTL - KIX
2 stops31h 53mJapan Airlines
Sat 12/207:00 amKIX - STL
2 stops24h 46mJapan Airlines
Deal found 9/16$748
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Mon 9/155:49 pmSTL - ITM
2 stops33h 16mUnited Airlines
Mon 9/2212:00 pmITM - STL
2 stops44h 58mUnited Airlines
Deal found 9/15$752
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 9/185:49 pmSTL - KIX
1 stop31h 01mUnited Airlines
Thu 9/254:50 pmKIX - STL
2 stops19h 10mUnited Airlines
Deal found 9/15$757
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 9/165:49 pmSTL - KIX
1 stop31h 01mUnited Airlines
Sun 9/218:25 amKIX - STL
2 stops29h 19mUnited Airlines
Deal found 9/15$760
This American Airlines deal was found by Cheapflights users on 9/16. 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 12/86:55 amSTL - KIX
1 stop20h 55mAmerican Airlines
Sat 12/205:50 pmKIX - STL
1 stop21h 01mAmerican Airlines
Deal found 9/16$767
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Sat 9/204:32 pmSTL - KIX
2 stops32h 18mUnited Airlines
Sun 9/284:50 pmKIX - STL
2 stops19h 10mUnited Airlines
Deal found 9/15$769
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 9/185:49 pmSTL - KIX
1 stop31h 01mUnited Airlines
Tue 9/234:50 pmKIX - STL
1 stop38h 03mUnited Airlines
Deal found 9/15$783
This CheapOair deal was found by Cheapflights users on 9/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/121:43 pmSTL - ITM
2 stops39h 07mJapan Airlines
Thu 11/272:40 pmITM - STL
2 stops38h 03mJapan Airlines
Deal found 9/14$874
This Japan Airlines deal was found by Cheapflights users on 9/14. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/207:23 amSTL - ITM
2 stops35h 12mJapan Airlines
Wed 9/247:25 amITM - STL
2 stops20h 06mJapan Airlines
Deal found 9/14$888
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/166:00 amSTL - ITM
2 stops23h 45mAlaska Airlines
Thu 9/252:35 pmITM - STL
2 stops23h 24mAlaska Airlines
Deal found 9/15$902

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 September 17, 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 - ITM

STLITM

Lambert-St Louis

Sun 2/1

9:57 am-6:10 pm

2 stops41h 13m

Osaka Itami

Sat 2/7

1:00 pm-7:27 pm

2 stops45h 27m

$723

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Sun 2/1

6:30 am-7:30 am

2 stops34h 00m

Osaka Itami

Sat 2/7

8:20 pm-10:52 am

2 stops29h 32m

$725

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Sun 2/15

7:09 am-7:55 pm

2 stops21h 46m

Osaka Itami

Sat 2/28

2:40 pm-5:56 pm

2 stops18h 16m

$727

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Sat 9/27

5:11 pm-2:50 pm

2 stops31h 39m

Osaka Kansai Intl

Wed 10/1

4:50 pm-11:58 pm

2 stops21h 08m

$741

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Mon 12/8

6:55 am-6:50 pm

1 stop20h 55m

Osaka Kansai Intl

Sat 12/20

5:50 pm-11:51 pm

1 stop21h 01m

$767

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Sat 9/20

4:32 pm-2:50 pm

2 stops32h 18m

Osaka Kansai Intl

Sun 9/28

4:50 pm-10:00 pm

2 stops19h 10m

$769

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Sat 11/1

2:06 pm-7:50 pm

2 stops39h 44m

Osaka Itami

Sat 11/8

7:05 am-7:27 pm

2 stops27h 22m

$925

Kansas CityKobe

MCI - UKB

MCIUKB

Kansas City

Sat 11/1

8:28 pm-10:10 am

3 stops47h 42m

Kobe

Sat 11/8

11:10 am-7:33 pm

3 stops23h 23m

$994

Kansas CityOsaka

MCI - KIX

MCIKIX

Kansas City

Sun 11/2

7:10 am-6:00 pm

2 stops43h 50m

Osaka Kansai Intl

Thu 11/6

9:20 am-11:27 pm

2 stops29h 07m

$1,190

Kansas CityOsaka

MCI - ITM

MCIITM

Kansas City

Thu 10/30

8:00 am-6:10 pm

2 stops44h 10m

Osaka Itami

Thu 11/6

1:00 pm-7:54 pm

2 stops21h 54m

$1,239

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 42 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

How much does it cost to fly round-trip from Missouri to Osaka?

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.

  • How long is the flight from Missouri to Osaka?

    Airlines like United Airlines, ANA, and American Airlines fly from Missouri to Osaka in about 21h 46m. The time it takes to get you to your destination can typically vary by up to 19h 27m. Missouri and Osaka are separated by a distance of 6568 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 Missouri to Osaka one-way?

    For one-way options, check prices for ANA. According to our data, you can fly for as low as $408. Users have also found prices from $429 and $433 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, Lambert-St Louis - Osaka Itami and Kansas City - 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 $859). Flying from Missouri to Osaka in June is currently the most expensive (average of $1,309). 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 Osaka?

Book flights to Osaka if you plan to visit one of these locations
Nara
Nishinomiya

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