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Kansai Intl

$798+ Cheap flights from St. Louis (STL) to Kansai Intl (KIX)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — KIX
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
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Cheap flight deals from St. Louis to Kansai Intl

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Kansai Intl (KIX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$798
(United Airlines)

Popular in

May

Cheapest in

September

Average price

$874
Provider with most accurate pricing for Lambert-St Louis-Osaka Kansai Intl flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Osaka Kansai Intl flights.
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From Lambert-St Louis to Osaka Kansai Intl
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Highest demand for flights based on searches. 22% potential increase in price ($395 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 January 2025
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Find flight deals from St. Louis to Kansai Intl

Cheapest flights from St. Louis to Kansai Intl
Explore the most affordable flight options available from St. Louis to Kansai Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 30, 2025.

This United Airlines deal was found by Cheapflights users on 1/30. 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 8/304:17 pmSTL - KIX
2 stops32h 33mUnited Airlines
Fri 9/54:50 pmKIX - STL
1 stop21h 37mUnited Airlines
Deal found 1/30$798
This FlightHub deal was found by Cheapflights users on 1/30. 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 2/35:40 amSTL - KIX
2 stops25h 40mJapan Airlines
Mon 2/105:50 pmKIX - STL
1 stop20h 13mJapan Airlines
Deal found 1/30$834
This Ovago deal was found by Cheapflights users on 1/30. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/166:00 amSTL - KIX
2 stops40h 50mKorean Air
Tue 3/256:25 pmKIX - STL
2 stops42h 38mKorean Air
Deal found 1/30$1,143
This Priceline deal was found by Cheapflights users on 1/29. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2711:04 amSTL - KIX
3 stops36h 51mMultiple Airlines
Thu 3/63:40 pmKIX - STL
2 stops38h 26mMultiple Airlines
Deal found 1/29$1,323
This Justfly.com deal was found by Cheapflights users on 1/29. 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 5/196:15 amSTL - KIX
2 stops25h 35mANA
Tue 6/34:10 pmKIX - STL
2 stops36h 43mANA
Deal found 1/29$1,335
This American Airlines deal was found by Cheapflights users on 1/30. 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 2/36:03 amSTL - KIX
1 stop21h 47mAmerican Airlines
Mon 2/105:50 pmKIX - STL
1 stop20h 13mAmerican Airlines
Deal found 1/30$1,471
This Delta deal was found by Cheapflights users on 1/30. 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 3/166:00 amSTL - KIX
2 stops38h 35mDelta
Sun 3/2311:55 amKIX - STL
2 stops25h 08mDelta
Deal found 1/30$1,520
This Gotogate deal was found by Cheapflights users on 1/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2711:04 amSTL - KIX
3 stops36h 51mCathay Pacific
Thu 3/64:05 pmKIX - STL
3 stops40h 54mCathay Pacific
Deal found 1/29$1,533
This Qatar Airways deal was found by Cheapflights users on 1/30. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/34:44 pmSTL - KIX
2 stops56h 31mQatar Airways
Mon 2/103:05 pmKIX - STL
3 stops46h 12mQatar Airways
Deal found 1/30$1,755

Find flights from St. Louis to Kansai Intl within your budget

Customize your flight search to find flights from St. Louis 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 January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Sun 3/9

4:30 pm-4:35 pm

2 stops34h 05m

Osaka Kansai Intl

Tue 3/18

6:30 pm-10:08 am

2 stops29h 38m

$798

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Tue 5/20

7:04 am-11:15 am

2 stops38h 11m

Osaka Kansai Intl

Wed 6/4

9:10 pm-3:58 pm

2 stops32h 48m

$951

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Sun 3/16

6:00 am-12:50 pm

2 stops40h 50m

Osaka Kansai Intl

Tue 3/25

6:25 pm-11:03 pm

2 stops42h 38m

$1,143

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Thu 2/27

11:04 am-2:55 pm

3 stops36h 51m

Osaka Kansai Intl

Thu 3/6

3:40 pm-3:06 pm

2 stops38h 26m

$1,323

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Mon 5/19

6:15 am-9:50 pm

2 stops25h 35m

Osaka Kansai Intl

Tue 6/3

4:10 pm-2:53 pm

2 stops36h 43m

$1,335

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Sun 3/16

6:15 am-6:50 pm

1 stop22h 35m

Osaka Kansai Intl

Sun 3/23

5:50 pm-11:09 pm

1 stop19h 19m

$1,505

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Sun 3/16

6:00 am-10:35 am

2 stops38h 35m

Osaka Kansai Intl

Sun 3/23

11:55 am-11:03 pm

2 stops25h 08m

$1,520

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Thu 2/27

11:04 am-2:55 pm

3 stops36h 51m

Osaka Kansai Intl

Thu 3/6

4:05 pm-5:59 pm

3 stops40h 54m

$1,533

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Compare providers for flights from St. Louis to Kansai Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Kansai Intl in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Osaka Kansai Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Osaka Kansai Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Osaka Kansai Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Osaka Kansai Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Osaka Kansai Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Kansai Intl

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

Travel insights for flights from St. Louis to Kansai Intl

Get recent, data-driven insights about flights from St. Louis to Kansai Intl including ideal travel times, pricing trends, and more.

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 January 30, 2025.
Korean Air
8.5
Very good
1,034 reviews

Entertainment

8.2

Comfort

8.3

Overall

8.5

Crew

8.7

Food

8.1

Boarding

8.5

Reviews

1 / 20

10.0
Excellent

David,Dec 2024

JFK - MCO

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Korean Air
8.5
Very good
1,034 reviews
Korean Air
8.5
Very good
1,034 reviews

Entertainment

8.2

Comfort

8.3

Overall

8.5

Crew

8.7

Food

8.1

Boarding

8.5

Reviews

1 / 20

10.0
Excellent

David,Dec 2024

JFK - MCO

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

ANA
8.4
Very good
844 reviews
Korean Air
8.5
Very good
1,034 reviews

Entertainment

8.2

Comfort

8.3

Overall

8.5

Crew

8.7

Food

8.1

Boarding

8.5

Reviews

1 / 20

10.0
Excellent

David,Dec 2024

JFK - MCO

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Japan Airlines
8.3
Very good
1,445 reviews
Korean Air
8.5
Very good
1,034 reviews

Entertainment

8.2

Comfort

8.3

Overall

8.5

Crew

8.7

Food

8.1

Boarding

8.5

Reviews

1 / 20

10.0
Excellent

David,Dec 2024

JFK - MCO

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Delta
8.0
Very good
8,450 reviews
Korean Air
8.5
Very good
1,034 reviews

Entertainment

8.2

Comfort

8.3

Overall

8.5

Crew

8.7

Food

8.1

Boarding

8.5

Reviews

1 / 20

10.0
Excellent

David,Dec 2024

JFK - MCO

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Cathay Pacific
7.5
Good
820 reviews
Korean Air
8.5
Very good
1,034 reviews

Entertainment

8.2

Comfort

8.3

Overall

8.5

Crew

8.7

Food

8.1

Boarding

8.5

Reviews

1 / 20

10.0
Excellent

David,Dec 2024

JFK - MCO

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Related info for your journey

Find useful and relevant information for your journey from St. Louis 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 airport do you fly from for flights from St. Louis to Osaka Kansai Intl?

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Osaka Kansai Intl. On average, Lambert-St Louis has 0 outbound flights to Osaka Kansai Intl per day from 2 airlines. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

  • What are the cheapest airlines flying from St. Louis to Osaka Kansai Intl Airport round-trip?

    According to our current data, United Airlines ($798), Japan Airlines ($951), and Korean Air ($1,143) offers the cheapest pricing from St. Louis to Osaka Kansai Intl Airport.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis 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 St. Louis to Osaka Kansai Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from St. Louis to Osaka Kansai Intl Airport (average of $945). Flying from St. Louis to Osaka Kansai Intl Airport in December is currently the most expensive (average of $1,366). 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?

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Alternative routes for St. Louis 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 St. Louis to Kansai Intl

Discover the top 2 airlines that operate flights from St. Louis 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 January 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest$723Average$1,214FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$778Average$1,861FlexibilityNo cancel feeOn-time69%
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