$430+ Cheap flights from St. Louis (STL) 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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
STL — KIX
Sep 8 — Sep 151
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Kansai Intl with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Kansai Intl
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Cheapest flights from St. Louis to Kansai IntlExplore 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 August 9, 2026.
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 August 9, 2026.
This Air Canada deal was found by Cheapflights users on 8/6. 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 9/1512:10 pm -
2 stops38h 15m
Tue 9/226:00 pm -
2 stops38h 41m
Deal found 8/6![Air Canada logo]()
$950
This Air Canada deal was found by Cheapflights users on 8/5. 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 10/1112:10 pm -
2 stops38h 15m
Thu 10/297:25 pm -
2 stops40h 15m
Deal found 8/5![Air Canada logo]()
$974
This Air Canada deal was found by Cheapflights users on 8/3. 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 9/1212:10 pm -
2 stops38h 15m
Wed 9/166:00 pm -
2 stops35h 38m
Deal found 8/3![Air Canada logo]()
$985
This CheapOair deal was found by Cheapflights users on 8/5. 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.
Sat 9/1912:10 pm -
2 stops38h 15m
Sat 9/266:00 pm -
2 stops39h 41m
Deal found 8/5![Air Canada logo]()
$1,028
This Air Canada deal was found by Cheapflights users on 8/6. 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.
Thu 9/36:00 am -
2 stops20h 25m
Thu 9/106:00 pm -
2 stops38h 41m
Deal found 8/6![Air Canada logo]()
$1,029
Best flights from St. Louis to Kansai IntlDiscover carefully curated flight deals from St. Louis to Kansai Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 9, 2026.
Discover carefully curated flight deals from St. Louis to Kansai Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 9, 2026.
This Air Canada deal was found by Cheapflights users on 8/6. 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 9/158:55 am -
1 stop17h 30m
Tue 9/226:00 pm -
2 stops38h 41m
Deal found 8/6![Air Canada logo]()
$955
This FlightHub deal was found by Cheapflights users on 8/7. 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.
Tue 9/158:00 am -
2 stops24h 20m
Tue 9/227:00 am -
2 stops18h 57m
Deal found 8/7![ANA logo]()
$1,110
This American Airlines deal was found by Cheapflights users on 8/7. 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.
Fri 8/286:00 am -
1 stop22h 45m
Fri 9/45:45 pm -
1 stop19h 14m
Deal found 8/7![American Airlines logo]()
$1,122
This American Airlines deal was found by Cheapflights users on 8/7. 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.
Tue 8/116:00 am -
1 stop22h 45m
Thu 8/136:40 am -
2 stops25h 25m
Deal found 8/7![Multiple Airlines logo]()
$1,175
This United Airlines deal was found by Cheapflights users on 8/8. 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 10/117:08 am -
1 stop17h 42m
Thu 10/298:20 am -
2 stops22h 30m
Deal found 8/8![United Airlines logo]()
$1,240
This FlightHub deal was found by Cheapflights users on 8/8. 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 10/1112:10 pm -
2 stops62h 15m
Thu 10/297:25 pm -
2 stops41h 59m
Deal found 8/8![Air Canada logo]()
$960
This Air Canada deal was found by Cheapflights users on 8/5. 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 9/1212:10 pm -
2 stops38h 15m
Wed 9/166:00 pm -
2 stops35h 38m
Deal found 8/5![Air Canada logo]()
$986
This American Airlines deal was found by Cheapflights users on 8/8. 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.
Wed 8/128:36 am -
2 stops20h 09m
Fri 8/145:45 pm -
2 stops19h 57m
Deal found 8/8![American Airlines logo]()
$1,178
This CheapOair deal was found by Cheapflights users on 8/5. 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.
Sat 9/1912:10 pm -
2 stops38h 15m
Sat 9/266:00 pm -
2 stops39h 41m
Deal found 8/5![Air Canada logo]()
$1,028
Last-minute flights from St. Louis to Kansai IntlDiscover last-minute flight deals from St. Louis to Kansai Intl. Data last updated August 9, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Kansai Intl. Data last updated August 9, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 8/6. 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.
Thu 9/36:00 am -
2 stops20h 25m
Thu 9/106:00 pm -
2 stops38h 41m
Deal found 8/6![Air Canada logo]()
$1,029
This Air Canada deal was found by Cheapflights users on 8/3. 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 9/1212:10 pm -
2 stops38h 15m
Wed 9/166:00 pm -
2 stops35h 38m
Deal found 8/3![Air Canada logo]()
$985
This Air Canada deal was found by Cheapflights users on 8/6. 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 9/1512:10 pm -
2 stops38h 15m
Tue 9/226:00 pm -
2 stops38h 41m
Deal found 8/6![Air Canada logo]()
$950
This CheapOair deal was found by Cheapflights users on 8/5. 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.
Sat 9/1912:10 pm -
2 stops38h 15m
Sat 9/266:00 pm -
2 stops39h 41m
Deal found 8/5![Air Canada logo]()
$1,028
This Mytrip deal was found by Cheapflights users on 8/6. 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.
Sun 9/2012:10 pm -
2 stops38h 15m
Sun 9/276:00 pm -
2 stops18h 59m
Deal found 8/6![Air Canada logo]()
$1,058
One-way flights from St. Louis to Kansai IntlSearch for one-way flight options from St. Louis to Kansai Intl. Find affordable one-way fares based on user searches. Data last updated August 9, 2026.
Search for one-way flight options from St. Louis to Kansai Intl. Find affordable one-way fares based on user searches. Data last updated August 9, 2026.
This Orbitz deal was found by Cheapflights users on 8/6. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/208:55 am -
1 stop17h 30m
Deal found 8/6![Air Canada logo]()
$430
This United Airlines deal was found by Cheapflights users on 8/6. 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 8/206:59 pm -
3 stops29h 51m
Deal found 8/6![United Airlines logo]()
$594
Find 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 August 9, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $950 (Air Canada) |
One-way from | $430 (Orbitz) |
Popular in | December |
Cheapest in | May |
Average price | $1,375 |
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 August 9, 2026.
Use the filters below to find and compare flights from St. Louis to Osaka Kansai Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisOsaka
STL Lambert-St Louis - KIX Osaka Kansai Intl
STLKIX
Lambert-St Louis
Tue 9/15
8:55 am-4:25 pm
1 stop17h 30m
Osaka Kansai Intl
Tue 9/22
6:00 pm-6:41 pm
2 stops38h 41m
$955
St. LouisOsaka
STL Lambert-St Louis - KIX Osaka Kansai Intl
STLKIX
Lambert-St Louis
Sun 10/11
12:10 pm-4:25 pm
2 stops62h 15m
Osaka Kansai Intl
Thu 10/29
7:25 pm-11:24 pm
2 stops41h 59m
$960
St. LouisOsaka
STL Lambert-St Louis - KIX Osaka Kansai Intl
STLKIX
Lambert-St Louis
Sat 9/12
12:10 pm-4:25 pm
2 stops38h 15m
Osaka Kansai Intl
Wed 9/16
6:00 pm-3:38 pm
2 stops35h 38m
$986
St. LouisOsaka
STL Lambert-St Louis - KIX Osaka Kansai Intl
STLKIX
Lambert-St Louis
Sat 9/19
12:10 pm-4:25 pm
2 stops38h 15m
Osaka Kansai Intl
Sat 9/26
6:00 pm-7:41 pm
2 stops39h 41m
$1,028
St. LouisOsaka
STL Lambert-St Louis - KIX Osaka Kansai Intl
STLKIX
Lambert-St Louis
Tue 9/15
8:00 am-10:20 pm
2 stops24h 20m
Osaka Kansai Intl
Tue 9/22
7:00 am-11:57 am
2 stops18h 57m
$1,110
St. LouisOsaka
STL Lambert-St Louis - KIX Osaka Kansai Intl
STLKIX
Lambert-St Louis
Fri 8/28
6:00 am-6:45 pm
1 stop22h 45m
Osaka Kansai Intl
Fri 9/4
5:45 pm-10:59 pm
1 stop19h 14m
$1,122
St. LouisOsaka
STL Lambert-St Louis - KIX Osaka Kansai Intl
STLKIX
Lambert-St Louis
Tue 8/11
6:00 am-6:45 pm
1 stop22h 45m
Osaka Kansai Intl
Thu 8/13
6:40 am-6:05 pm
2 stops25h 25m
$1,175
Quickest round-trip
St. LouisOsaka
STL Lambert-St Louis - KIX Osaka Kansai Intl
STLKIX
Lambert-St Louis
Wed 8/12
8:36 am-6:45 pm
2 stops20h 09m
Osaka Kansai Intl
Fri 8/14
5:45 pm-11:42 pm
2 stops19h 57m
$1,178
St. LouisOsaka
STL Lambert-St Louis - KIX Osaka Kansai Intl
STLKIX
Lambert-St Louis
Sun 10/11
7:08 am-2:50 pm
1 stop17h 42m
Osaka Kansai Intl
Thu 10/29
8:20 am-4:50 pm
2 stops22h 30m
$1,240
Cheapest one-way
Quickest one-way
St. LouisOsaka
STL Lambert-St Louis - KIX Osaka Kansai Intl
STLKIX
Lambert-St Louis
Thu 8/20
8:55 am-4:25 pm
1 stop17h 30m
$430
Showing 1-10 of 11 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on St. Louis-Osaka Kansai Intl Airport flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on St. Louis-Osaka Kansai Intl Airport flight deals on Cheapflights vs. Ovago >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 Ovago the most. Ovago 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.
STL-KIX
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.
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.
Traveling to a place near Osaka Kansai Intl Airport?
Book flights to Osaka Kansai Intl Airport if you plan to visit one of these locationsNara
Izumisano
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