$526+ 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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
STL — KIX
Dec 5 — Dec 121
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
Cheapest
Best
Last-minute
One-way
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 November 5, 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 November 5, 2026.
This United Airlines deal was found by Cheapflights users on 10/31. 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.
Sun 12/61:18 pm -
3 stops36h 27m
Thu 12/106:35 pm -
2 stops30h 55m
Deal found 10/31![United Airlines logo]()
$832
This United Airlines deal was found by Cheapflights users on 10/31. 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.
Sun 11/11:00 pm -
2 stops36h 45m
Mon 11/96:35 pm -
2 stops19h 49m
Deal found 10/31![United Airlines logo]()
$987
This United Airlines deal was found by Cheapflights users on 11/1. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/65:55 pm -
2 stops31h 50m
Thu 11/196:35 pm -
1 stop18h 40m
Deal found 11/1![United Airlines logo]()
$1,121
This Japan Airlines deal was found by Cheapflights users on 10/31. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/68:10 am -
1 stop20h 00m
Thu 12/106:00 pm -
1 stop17h 40m
Deal found 10/31![Japan Airlines logo]()
$1,203
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 November 5, 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 November 5, 2026.
This United Airlines deal was found by Cheapflights users on 11/1. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/195:00 am -
2 stops20h 45m
Wed 1/276:35 pm -
2 stops32h 38m
Deal found 11/1![United Airlines logo]()
$832
This Japan Airlines deal was found by Cheapflights users on 10/31. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/68:10 am -
1 stop20h 00m
Thu 12/106:00 pm -
1 stop17h 40m
Deal found 10/31![Japan Airlines logo]()
$1,203
This United Airlines deal was found by Cheapflights users on 11/2. 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 12/61:18 pm -
3 stops36h 27m
Thu 12/106:35 pm -
2 stops30h 55m
Deal found 11/2![United Airlines logo]()
$954
This United Airlines deal was found by Cheapflights users on 11/1. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/25:00 am -
2 stops20h 45m
Tue 2/93:20 pm -
2 stops21h 17m
Deal found 11/1![United Airlines logo]()
$970
Last-minute flights from St. Louis to Kansai IntlDiscover last-minute flight deals from St. Louis to Kansai Intl. Data last updated November 5, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Kansai Intl. Data last updated November 5, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 11/1. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/65:55 pm -
2 stops31h 50m
Thu 11/196:35 pm -
1 stop18h 40m
Deal found 11/1![United Airlines logo]()
$1,121
This Justfly.com deal was found by Cheapflights users on 11/1. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:00 am -
2 stops35h 25m
Thu 11/192:40 pm -
2 stops24h 18m
Deal found 11/1![Japan Airlines logo]()
$1,349
This Cathay Pacific deal was found by Cheapflights users on 11/3. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:00 am -
3 stops41h 45m
Tue 12/87:05 pm -
2 stops36h 35m
Deal found 11/3![Cathay Pacific logo]()
$1,526
This United Airlines deal was found by Cheapflights users on 10/31. 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.
Sun 12/61:18 pm -
3 stops36h 27m
Thu 12/106:35 pm -
2 stops30h 55m
Deal found 10/31![United Airlines logo]()
$832
This Japan Airlines deal was found by Cheapflights users on 10/31. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/68:10 am -
1 stop20h 00m
Thu 12/106:00 pm -
1 stop17h 40m
Deal found 10/31![Japan Airlines logo]()
$1,203
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 November 5, 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 November 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/66:20 pm -
3 stops57h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$526
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:13 pm -
3 stops59h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Multiple Airlines logo]()
$529
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/126:04 am -
3 stops36h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$900
This oojo deal was found by Cheapflights users on 11/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/66:01 am -
1 stop22h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Japan Airlines logo]()
$959
This Kiwi.com deal was found by Cheapflights users on 10/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/156:04 am -
3 stops36h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/31![Multiple Airlines logo]()
$979
This Turkish Airlines deal was found by Cheapflights users on 11/4. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/126:30 am -
2 stops45h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Turkish Airlines logo]()
$1,067
This Delta deal was found by Cheapflights users on 11/2. 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.
Tue 12/156:00 am -
2 stops25h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Delta logo]()
$1,110
This American Airlines deal was found by Cheapflights users on 11/4. 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 12/128:10 am -
1 stop20h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![American Airlines logo]()
$1,219
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 November 5, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $832 (United Airlines) |
One-way from | $526 (Kiwi.com) |
Popular in | June |
Cheapest in | May |
Average price | $877 |
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 7,457,451 searches. Data last updated November 5, 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
Wed 1/6
6:20 pm-6:40 pm
3 stops57h 20m
Osaka Kansai Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$526
St. LouisOsaka
STL Lambert-St Louis - KIX Osaka Kansai Intl
STLKIX
Lambert-St Louis
Tue 12/1
6:00 am-6:20 am
2 stops33h 20m
Osaka Kansai Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$702
St. LouisOsaka
STL Lambert-St Louis - KIX Osaka Kansai Intl
STLKIX
Lambert-St Louis
Tue 1/19
5:00 am-4:45 pm
2 stops20h 45m
Osaka Kansai Intl
Wed 1/27
6:35 pm-12:13 pm
2 stops32h 38m
$832
St. LouisOsaka
STL Lambert-St Louis - KIX Osaka Kansai Intl
STLKIX
Lambert-St Louis
Sat 12/12
6:04 am-9:55 am
3 stops36h 51m
Osaka Kansai Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$900
St. LouisOsaka
STL Lambert-St Louis - KIX Osaka Kansai Intl
STLKIX
Lambert-St Louis
Sun 12/6
1:18 pm-4:45 pm
3 stops36h 27m
Osaka Kansai Intl
Thu 12/10
6:35 pm-10:30 am
2 stops30h 55m
$954
St. LouisOsaka
STL Lambert-St Louis - KIX Osaka Kansai Intl
STLKIX
Lambert-St Louis
Tue 2/2
5:00 am-4:45 pm
2 stops20h 45m
Osaka Kansai Intl
Tue 2/9
3:20 pm-9:37 pm
2 stops21h 17m
$970
St. LouisOsaka
STL Lambert-St Louis - KIX Osaka Kansai Intl
STLKIX
Lambert-St Louis
Tue 12/15
6:04 am-9:55 am
3 stops36h 51m
Osaka Kansai Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$979
St. LouisOsaka
STL Lambert-St Louis - KIX Osaka Kansai Intl
STLKIX
Lambert-St Louis
Sat 12/12
6:30 am-7:10 pm
2 stops45h 40m
Osaka Kansai Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$1,067
Quickest round-trip
St. LouisOsaka
STL Lambert-St Louis - KIX Osaka Kansai Intl
STLKIX
Lambert-St Louis
Tue 12/15
6:00 am-10:40 pm
2 stops25h 40m
Osaka Kansai Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$1,110
St. LouisOsaka
STL Lambert-St Louis - KIX Osaka Kansai Intl
STLKIX
Lambert-St Louis
Sun 12/6
8:10 am-7:10 pm
1 stop20h 00m
Osaka Kansai Intl
Thu 12/10
6:00 pm-8:40 pm
1 stop17h 40m
$1,203
Sorted by cheapest first
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 November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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 locationsIzumisano
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