$458+ 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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — KIX
Jul 8 — Jul 151
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Kansai Intl with Cheapflights
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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 June 8, 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 June 8, 2026.
This Air Canada deal was found by Cheapflights users on 6/6. 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
STL
- KIX
2 stops38h 15m
Air Canada
Tue 9/226:00 pm
KIX
- STL
2 stops38h 41m
Air Canada
Deal found 6/6![Air Canada logo]()
$963
This Air Canada deal was found by Cheapflights users on 6/6. 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.
Sat 9/1212:10 pm
STL
- KIX
2 stops38h 15m
Air Canada
Wed 9/166:00 pm
KIX
- STL
2 stops41h 36m
Air Canada
Deal found 6/6![Air Canada logo]()
$1,005
This Air Canada deal was found by Cheapflights users on 6/7. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/112:40 pm
STL
- KIX
2 stops35h 45m
Air Canada
Thu 10/297:25 pm
KIX
- STL
2 stops34h 05m
Air Canada
Deal found 6/7![Air Canada logo]()
$1,037
This FlightHub deal was found by Cheapflights users on 6/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1312:10 pm
STL
- KIX
2 stops38h 15m
Air Canada
Sun 9/206:00 pm
KIX
- STL
2 stops35h 38m
Air Canada
Deal found 6/6![Air Canada logo]()
$1,069
This CheapOair deal was found by Cheapflights users on 6/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1412:10 pm
STL
- KIX
2 stops62h 15m
Air Canada
Sun 9/206:00 pm
KIX
- STL
2 stops62h 41m
Air Canada
Deal found 6/6![Air Canada logo]()
$1,071
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 June 8, 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 June 8, 2026.
This Air Canada deal was found by Cheapflights users on 6/5. 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.
Tue 9/1512:10 pm
STL
- KIX
2 stops38h 15m
Air Canada
Tue 9/226:00 pm
KIX
- STL
2 stops38h 41m
Air Canada
Deal found 6/5![Air Canada logo]()
$963
This Cathay Pacific deal was found by Cheapflights users on 6/3. 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 9/155:00 pm
STL
- KIX
3 stops31h 50m
Multiple Airlines
Tue 9/229:45 am
KIX
- STL
2 stops27h 58m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$1,212
This Air Canada deal was found by Cheapflights users on 6/3. 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 9/128:00 am
STL
- KIX
2 stops42h 25m
Air Canada
Wed 9/166:00 pm
KIX
- STL
2 stops38h 41m
Air Canada
Deal found 6/3![Air Canada logo]()
$1,023
This FlightHub deal was found by Cheapflights users on 6/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/118:55 am
STL
- KIX
2 stops41h 30m
Air Canada
Thu 10/297:25 pm
KIX
- STL
2 stops34h 05m
Air Canada
Deal found 6/3![Air Canada logo]()
$1,111
This Cathay Pacific deal was found by Cheapflights users on 6/6. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1411:01 am
STL
- KIX
2 stops29h 39m
Multiple Airlines
Sun 9/204:15 pm
KIX
- STL
3 stops45h 28m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$1,257
This Cathay Pacific deal was found by Cheapflights users on 6/6. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:43 pm
STL
- KIX
2 stops30h 27m
Multiple Airlines
Sun 9/204:15 pm
KIX
- STL
3 stops45h 28m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$1,307
This Cathay Pacific deal was found by Cheapflights users on 6/5. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:00 pm
STL
- KIX
3 stops31h 50m
Multiple Airlines
Sat 10/104:15 pm
KIX
- STL
3 stops39h 49m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$1,328
This Cathay Pacific deal was found by Cheapflights users on 6/7. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/116:51 pm
STL
- KIX
3 stops29h 59m
Multiple Airlines
Thu 10/299:25 am
KIX
- STL
2 stops28h 16m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$1,347
Last-minute flights from St. Louis to Kansai IntlDiscover last-minute flight deals from St. Louis to Kansai Intl. Data last updated June 8, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Kansai Intl. Data last updated June 8, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 6/7. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/712:10 pm
STL
- KIX
2 stops38h 15m
Air Canada
Tue 7/146:00 pm
KIX
- STL
2 stops38h 42m
Air Canada
Deal found 6/7![Air Canada logo]()
$1,473
This Air Canada deal was found by Cheapflights users on 6/5. 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.
Tue 7/712:10 pm
STL
- KIX
2 stops38h 15m
Air Canada
Tue 7/216:00 pm
KIX
- STL
2 stops34h 02m
Air Canada
Deal found 6/5![Air Canada logo]()
$1,478
This Japan Airlines deal was found by Cheapflights users on 6/4. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:37 am
STL
- KIX
1 stop22h 08m
Multiple Airlines
Tue 7/215:45 pm
KIX
- STL
1 stop20h 14m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$1,515
This KAYAK deal was found by Cheapflights users on 6/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/137:22 pm
STL
- KIX
2 stops32h 43m
Cathay Pacific
Sun 8/307:25 pm
KIX
- STL
2 stops42h 17m
Cathay Pacific
Deal found 6/3![Cathay Pacific logo]()
$1,415
This Air Canada deal was found by Cheapflights users on 6/3. 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.
Mon 7/132:40 pm
STL
- KIX
1 stop35h 45m
Air Canada
Sun 8/306:00 pm
KIX
- STL
2 stops32h 02m
Air Canada
Deal found 6/3![Air Canada logo]()
$1,426
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/205:10 am
STL
- KIX
2 stops19h 40m
United Airlines
Mon 7/274:55 pm
KIX
- STL
2 stops29h 44m
United Airlines
Deal found 6/7![United Airlines logo]()
$1,354
This KAYAK deal was found by Cheapflights users on 6/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/206:37 am
STL
- KIX
1 stop22h 08m
Japan Airlines
Mon 7/277:50 pm
KIX
- STL
2 stops31h 01m
Japan Airlines
Deal found 6/4![Japan Airlines logo]()
$1,407
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 June 8, 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 June 8, 2026.
This Expedia deal was found by Cheapflights users on 6/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/125:30 pm
STL
- KIX
2 stops32h 55m
Air Canada
Deal found 6/5![Air Canada logo]()
$458
This Travelocity deal was found by Cheapflights users on 6/7. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/208:55 am
STL
- KIX
1 stop17h 30m
Air Canada
Deal found 6/7![Air Canada logo]()
$463
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2010:35 am
STL
- KIX
3 stops56h 40m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$500
This United Airlines deal was found by Cheapflights users on 6/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/124:40 pm
STL
- KIX
3 stops32h 10m
United Airlines
Deal found 6/5![United Airlines logo]()
$609
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 June 8, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $963 (Air Canada) |
One-way from | $458 (Expedia) |
Popular in | July |
Cheapest in | May |
Average price | $1,760 |
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 June 8, 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 - KIX
STLKIX
Lambert-St Louis
Tue 9/15
12:10 pm-4:25 pm
2 stops38h 15m
Osaka Kansai Intl
Tue 9/22
6:00 pm-6:41 pm
2 stops38h 41m
$963
St. LouisOsaka
STL - KIX
STLKIX
Lambert-St Louis
Sat 9/12
8:00 am-4:25 pm
2 stops42h 25m
Osaka Kansai Intl
Wed 9/16
6:00 pm-6:41 pm
2 stops38h 41m
$1,023
St. LouisOsaka
STL - KIX
STLKIX
Lambert-St Louis
Sun 10/11
8:55 am-4:25 pm
2 stops41h 30m
Osaka Kansai Intl
Thu 10/29
7:25 pm-3:30 pm
2 stops34h 05m
$1,111
St. LouisOsaka
STL - KIX
STLKIX
Lambert-St Louis
Tue 9/15
5:00 pm-2:50 pm
3 stops31h 50m
Osaka Kansai Intl
Tue 9/22
9:45 am-11:43 pm
2 stops27h 58m
$1,212
St. LouisOsaka
STL - KIX
STLKIX
Lambert-St Louis
Mon 9/14
11:01 am-6:40 am
2 stops29h 39m
Osaka Kansai Intl
Sun 9/20
4:15 pm-11:43 pm
3 stops45h 28m
$1,257
St. LouisOsaka
STL - KIX
STLKIX
Lambert-St Louis
Sun 9/13
6:43 pm-3:10 pm
2 stops30h 27m
Osaka Kansai Intl
Sun 9/20
4:15 pm-11:43 pm
3 stops45h 28m
$1,307
St. LouisOsaka
STL - KIX
STLKIX
Lambert-St Louis
Sat 9/26
5:00 pm-2:50 pm
3 stops31h 50m
Osaka Kansai Intl
Sat 10/10
4:15 pm-6:04 pm
3 stops39h 49m
$1,328
Quickest round-trip
St. LouisOsaka
STL - KIX
STLKIX
Lambert-St Louis
Sun 10/11
6:51 pm-2:50 pm
3 stops29h 59m
Osaka Kansai Intl
Thu 10/29
9:25 am-11:41 pm
2 stops28h 16m
$1,347
Cheapest one-way
St. LouisOsaka
STL - KIX
STLKIX
Lambert-St Louis
Sat 9/12
5:30 pm-4:25 pm
2 stops32h 55m
$458
Quickest one-way
St. LouisOsaka
STL - KIX
STLKIX
Lambert-St Louis
Tue 10/20
8:55 am-4:25 pm
1 stop17h 30m
$463
Showing 1-10 of 12 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.
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 June 8, 2026.
Peruse reviews from past customers who have flown with Japan Airlines 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.
Boarding
8.4
Comfort
8.2
Food
7.7
Crew
8.7
Overall
8.3
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Nov 2025
BKK - NRT
Boarding
8.4
Comfort
8.2
Food
7.7
Crew
8.7
Overall
8.3
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Nov 2025
BKK - NRT
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
Himeji
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St. Louis and Kansai Intl flights
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Top airline flying from St. Louis to Kansai Intl
Discover the top airline 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 June 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$813 | Average$1,164 | FlexibilityNo cancel fee | On-time79% |