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Kansai Intl

$804+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — KIX
Aug 2 — Aug 91
Sat 8/2
Sat 8/9
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 July 28, 2025.

Round-trip from

$845
(Air Canada)

Popular in

December

Cheapest in

September

Average price

$1,364
From Lambert-St Louis to Osaka Kansai Intl
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Highest demand for flights based on searches. 30% potential increase in price ($577 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($64 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 28, 2025.

This Air Canada deal was found by Cheapflights users on 7/26. 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.
Tue 9/93:20 pmSTL - KIX
2 stops35h 05mAir Canada
Tue 9/166:05 pmKIX - STL
2 stops39h 52mAir Canada
Deal found 7/26$804
This United Airlines deal was found by Cheapflights users on 7/27. 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 stops19h 10mUnited Airlines
Deal found 7/27$852
This ANA deal was found by Cheapflights users on 7/26. 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 ANA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/95:49 pmSTL - KIX
1 stop31h 01mMultiple Airlines
Tue 9/164:50 pmKIX - STL
1 stop38h 03mMultiple Airlines
Deal found 7/26$1,248
This Gurufare deal was found by Cheapflights users on 7/26. 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.
Sun 11/233:23 pmSTL - KIX
2 stops26h 07mJapan Airlines
Sat 11/295:50 pmKIX - STL
1 stop20h 52mJapan Airlines
Deal found 7/26$1,378
This Gurufare deal was found by Cheapflights users on 7/26. 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.
Tue 9/93:59 pmSTL - KIX
3 stops32h 56mCathay Pacific
Tue 9/1610:00 amKIX - STL
2 stops26h 50mCathay Pacific
Deal found 7/26$1,439
This American Airlines deal was found by Cheapflights users on 7/26. 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.
Sat 9/276:20 amSTL - KIX
1 stop22h 25mAmerican Airlines
Wed 10/15:55 pmKIX - STL
2 stops18h 32mAmerican Airlines
Deal found 7/26$1,484
This Gurufare deal was found by Cheapflights users on 7/26. 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.
Fri 12/196:30 amSTL - KIX
2 stops24h 20mANA
Tue 12/307:10 amKIX - STL
2 stops20h 17mANA
Deal found 7/26$1,796

Cheapflights Fare Finder

 
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 July 28, 2025.
Use the filters below to find and compare flights from St. Louis to Osaka Kansai Intl Airport that are best for you.

Fly from

St. Louis

Fly to

Kansai Intl

Route

Depart

Return

Price

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Tue 9/9

3:20 pm-4:25 pm

2 stops35h 05m

Osaka Kansai Intl

Tue 9/16

6:05 pm-7:57 pm

2 stops39h 52m

$804

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Sat 9/27

5:28 pm-2:50 pm

2 stops31h 22m

Osaka Kansai Intl

Wed 10/1

4:50 pm-10:00 pm

2 stops19h 10m

$852

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Tue 9/9

5:49 pm-2:50 pm

1 stop31h 01m

Osaka Kansai Intl

Tue 9/16

4:50 pm-4:53 pm

1 stop38h 03m

$1,248

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Tue 9/9

3:59 pm-2:55 pm

3 stops32h 56m

Osaka Kansai Intl

Tue 9/16

10:00 am-10:50 pm

2 stops26h 50m

$1,439

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Sat 9/27

6:20 am-6:45 pm

1 stop22h 25m

Osaka Kansai Intl

Wed 10/1

5:55 pm-10:27 pm

2 stops18h 32m

$1,484

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

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.

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 July 28, 2025.
Peruse reviews from past customers who have flown with ANA, Japan Airlines, and Cathay Pacific from St. Louis to Osaka Kansai Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.4
Very good
922 reviews

Boarding

8.5

Crew

8.7

Entertainment

7.9

Overall

8.4

Food

7.7

Comfort

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA
ANA
8.4
Very good
922 reviews
ANA
8.4
Very good
922 reviews

Boarding

8.5

Crew

8.7

Entertainment

7.9

Overall

8.4

Food

7.7

Comfort

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA
Japan Airlines
8.3
Very good
1,535 reviews
ANA
8.4
Very good
922 reviews

Boarding

8.5

Crew

8.7

Entertainment

7.9

Overall

8.4

Food

7.7

Comfort

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA
Cathay Pacific
7.6
Good
944 reviews
ANA
8.4
Very good
922 reviews

Boarding

8.5

Crew

8.7

Entertainment

7.9

Overall

8.4

Food

7.7

Comfort

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA
United Airlines
7.4
Good
8,893 reviews
ANA
8.4
Very good
922 reviews

Boarding

8.5

Crew

8.7

Entertainment

7.9

Overall

8.4

Food

7.7

Comfort

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA
American Airlines
7.2
Good
10,000 reviews
ANA
8.4
Very good
922 reviews

Boarding

8.5

Crew

8.7

Entertainment

7.9

Overall

8.4

Food

7.7

Comfort

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA

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 0 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, Air Canada ($845), United Airlines ($852), and Japan Airlines ($1,378) offers the cheapest pricing from St. Louis to Osaka Kansai Intl Airport. You may be able to fly from St. Louis to Osaka Kansai Intl Airport for 35% less than the average price by searching for these airlines.

  • 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 $881). Flying from St. Louis to Osaka Kansai Intl Airport in June is currently the most expensive (average of $1,312). 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 Kansai Intl Airport?

Book flights to Osaka Kansai Intl Airport if you plan to visit one of these locations
Izumisano
Nara
Nishinomiya
Himeji

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