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Kansai Intl

$372+ Cheap flights from Missouri to Kansai Intl (KIX)

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 — KIX
Apr 6 — Apr 131
Sun 4/6
Sun 4/13
1 adult, Economy
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Cheap flight deals from Missouri to Kansai Intl

Keep the following information in mind while searching for Missouri to Kansai Intl flight deals. Data was last updated April 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$785
(United)

One-way from

$372
(United Airlines)

Popular in

January

Cheapest in

February
Provider with most accurate pricing for Kansas City-Osaka (OSA) flight deals.
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Provider most trusted by Cheapflights users for Kansas City-Osaka (OSA) flights.
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From Missouri to Osaka Kansai Intl
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One-way flight from Missouri to Osaka Kansai Intl
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High demand for flights, 1% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($43 potential savings vs. average RT price).
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Find flight deals from Missouri to Kansai Intl

Cheapest flights from Missouri to Kansai Intl
Explore the most affordable flight options available from Missouri to Kansai Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 1, 2025.

This Justfly.com deal was found by Cheapflights users on 3/31. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/296:15 amSTL - KIX
2 stops25h 35mANA
Wed 10/87:00 amKIX - STL
2 stops26h 25mANA
Deal found 3/31$740
This United Airlines deal was found by Cheapflights users on 3/31. 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 9/297:15 amSTL - KIX
1 stop17h 35mUnited Airlines
Wed 10/88:30 amKIX - STL
2 stops24h 55mUnited Airlines
Deal found 3/31$751
This Air Canada deal was found by Cheapflights users on 3/31. 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 7/75:30 pmSTL - KIX
2 stops32h 55mAir Canada
Mon 9/86:05 pmKIX - STL
2 stops35h 11mAir Canada
Deal found 3/31$823
This FlightHub deal was found by Cheapflights users on 3/31. 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 12/86:25 amSTL - KIX
2 stops24h 55mJapan Airlines
Sat 12/209:10 pmKIX - STL
2 stops28h 57mJapan Airlines
Deal found 3/31$824
This American Airlines deal was found by Cheapflights users on 3/31. 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 7/76:25 amSTL - KIX
1 stop22h 20mAmerican Airlines
Mon 9/85:55 pmKIX - STL
1 stop19h 04mAmerican Airlines
Deal found 3/31$1,129
This Gurufare deal was found by Cheapflights users on 3/31. 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.
Mon 4/287:18 amMCI - KIX
2 stops24h 57mJapan Airlines
Mon 5/56:45 amKIX - MCI
2 stops24h 00mJapan Airlines
Deal found 3/31$1,149
This United deal was found by Cheapflights users on 4/1. 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.
Sat 12/134:45 pmMCI - KIX
2 stops32h 50mUnited Airlines
Mon 12/226:30 pmKIX - MCI
2 stops30h 55mUnited Airlines
Deal found 4/1$1,214
This Mytrip deal was found by Cheapflights users on 3/31. 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.
Mon 4/282:04 pmMCI - KIX
3 stops35h 11mMultiple Airlines
Mon 5/58:55 pmKIX - MCI
2 stops33h 07mMultiple Airlines
Deal found 3/31$1,239
This American Airlines deal was found by Cheapflights users on 3/31. 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 4/277:18 amMCI - KIX
2 stops21h 27mAmerican Airlines
Wed 4/305:55 pmKIX - MCI
2 stops19h 41mAmerican Airlines
Deal found 3/31$1,445
This Gurufare deal was found by Cheapflights users on 3/31. 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.
Sat 9/207:59 pmSTL - KIX
3 stops28h 56mCathay Pacific
Sun 9/286:35 pmKIX - STL
2 stops41h 52mCathay Pacific
Deal found 3/31$1,507
This Mytrip deal was found by Cheapflights users on 3/31. 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.
Tue 5/207:30 amSTL - KIX
2 stops24h 20mMultiple Airlines
Wed 6/47:40 amKIX - STL
3 stops42h 56mMultiple Airlines
Deal found 3/31$1,583
This Air Canada deal was found by Cheapflights users on 3/31. 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 6/225:20 pmMCI - KIX
2 stops33h 05mAir Canada
Tue 7/226:05 pmKIX - MCI
2 stops19h 26mAir Canada
Deal found 3/31$1,709

Cheapflights Fare Finder

Customize your flight search to find flights from Missouri to Kansai Intl 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 April 1, 2025.
Use the filters below to find and compare flights from Missouri to Osaka Kansai Intl Airport that are best for you.

Fly from

Missouri

Fly to

Kansai Intl

Route

Depart

Return

Price

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-2:18 pm

2 stops35h 28m

$785

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Mon 7/7

5:30 pm-4:25 pm

2 stops32h 55m

Osaka Kansai Intl

Mon 9/8

6:05 pm-3:16 pm

2 stops35h 11m

$823

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Mon 7/7

8:26 am-8:25 am

2 stops33h 59m

Osaka Kansai Intl

Mon 9/8

5:55 pm-10:59 pm

1 stop19h 04m

$982

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Mon 7/7

6:25 am-6:45 pm

1 stop22h 20m

Osaka Kansai Intl

Mon 9/8

5:55 pm-10:59 pm

1 stop19h 04m

$1,129

Kansas CityOsaka

MCI - KIX

MCIKIX

Kansas City

Mon 4/28

7:18 am-10:15 pm

2 stops24h 57m

Osaka Kansai Intl

Mon 5/5

6:45 am-4:45 pm

2 stops24h 00m

$1,149

Kansas CityOsaka

MCI - KIX

MCIKIX

Kansas City

Tue 7/22

5:15 pm-2:50 pm

2 stops31h 35m

Osaka Kansai Intl

Sat 8/23

8:25 am-5:28 pm

2 stops47h 03m

$1,229

Kansas CityOsaka

MCI - KIX

MCIKIX

Kansas City

Mon 4/28

2:04 pm-3:15 pm

3 stops35h 11m

Osaka Kansai Intl

Mon 5/5

8:55 pm-4:02 pm

2 stops33h 07m

$1,239

Kansas CityOsaka

MCI - KIX

MCIKIX

Kansas City

Sun 4/27

7:18 am-6:45 pm

2 stops21h 27m

Osaka Kansai Intl

Wed 4/30

5:55 pm-11:36 pm

2 stops19h 41m

$1,445

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Sat 9/20

7:59 pm-2:55 pm

3 stops28h 56m

Osaka Kansai Intl

Sun 9/28

6:35 pm-10:27 pm

2 stops41h 52m

$1,507

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Tue 5/20

7:30 am-9:50 pm

2 stops24h 20m

Osaka Kansai Intl

Wed 6/4

7:40 am-12:36 pm

3 stops42h 56m

$1,583

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 20 results
1
2

Best time to book a flight from Missouri to Kansai Intl

Have a flexible travel schedule? Discover the best time to fly to Kansai Intl 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 Kansai Intl Airport

Rainfall in Kansai Intl by month

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

In terms of precipitation, rainfall in Osaka Kansai Intl Airport 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 Kansai Intl Airport when rainfall is around 1.6 in.

Temperature in Kansai Intl by month

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

If weather is an important factor for your trip to Osaka Kansai Intl Airport, 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 Kansai Intl

Get insights into the airlines that provide service to Kansai Intl. 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 Kansai Intl. Reviews last updated April 1, 2025.
Read through reviews of airlines operating flights from Missouri to Osaka, such as Japan Airlines, ANA and Cathay Pacific. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very good
1,440 reviews

Boarding

8.4

Food

7.7

Crew

8.7

Entertainment

7.8

Overall

8.3

Comfort

8.2

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!
Japan Airlines
8.3
Very good
1,440 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Boarding

8.4

Food

7.7

Crew

8.7

Entertainment

7.8

Overall

8.3

Comfort

8.2

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!
ANA
8.3
Very good
830 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Boarding

8.4

Food

7.7

Crew

8.7

Entertainment

7.8

Overall

8.3

Comfort

8.2

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!
Cathay Pacific
7.5
Good
841 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Boarding

8.4

Food

7.7

Crew

8.7

Entertainment

7.8

Overall

8.3

Comfort

8.2

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!
Qatar Airways
7.4
Good
3,541 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Boarding

8.4

Food

7.7

Crew

8.7

Entertainment

7.8

Overall

8.3

Comfort

8.2

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!
United Airlines
7.4
Good
8,615 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Boarding

8.4

Food

7.7

Crew

8.7

Entertainment

7.8

Overall

8.3

Comfort

8.2

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!

Related info for your journey

Find useful and relevant information for your journey from Missouri to Kansai Intl. 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 Kansai Intl Airport one-way?

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $372. Users have also found prices from $386 and $396 on American Airlines and Japan Airlines, respectively.

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

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

  • How can I find direct flights from Missouri to Kansai Intl?

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

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

    Yes. Cheapflights offers flight deals from Missouri to Kansai Intl 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 Kansai Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Missouri to Osaka Kansai Intl Airport (average of $898). Flying from Missouri to Osaka Kansai Intl Airport in December is currently the most expensive (average of $1,350). 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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Alternative routes for Missouri to Kansai Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Missouri to Kansai Intl

Discover the top 2 airlines that operate flights from Missouri to Kansai Intl. 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 April 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest$723Average$1,209FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$778Average$1,861FlexibilityNo cancel feeOn-time69%

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