Cheap flights from St. Louis (STL) to Kansai Intl (KIX) from $1,346

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 10/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — KIX
May 10 — May 171

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 May 5, 2024.

Popular in

December

Cheapest in

January

Average price

$1,861

Round-trip from

$1,124
High demand for flights, 57% potential price rise
Best time to find cheap flights, 51% potential price drop
Average for round-trip flights in May 2024
From Lambert-St Louis to Osaka Kansai Intl

What is the cheapest day to fly round-trip from St. Louis to Osaka Kansai Intl Airport?

Monday is generally a great day to depart. Flying on this day could help you save up to 114%.

What is the cheapest month to fly from St. Louis to Osaka Kansai Intl Airport?

February can be a great time to fly to Osaka Kansai Intl Airport from St. Louis with a flight ticket averaging about $1,594. Cheapflights users have found deals in the month of February for as cheap as $1,083. The most expensive prices can be found in the month of June.

When is the cheapest time to fly from St. Louis to Osaka Kansai Intl Airport (STL - KIX)?

It’s optimal to fly from St. Louis to Osaka Kansai Intl Airport in the morning. By choosing this option you can save up to 26% on the cost of your flight, compared to a flight at noon.

Cheap Japan Airlines flights from St. Louis to Kansai Intl

Explore cheap flight options specifically provided by Japan Airlines for the route between St. Louis and Kansai Intl. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,719,943 searches. Data last updated May 5, 2024.
Check out some of the cheapest Japan Airlines flights we've come across from St. Louis to Osaka. Come back soon if you're not finding the exact deal you're looking for.
Sat 10/125:30 pmSTL - KIX
1 stop35h 25mJapan Airlines
Sat 10/199:15 pmKIX - STL
2 stops40h 43mJapan Airlines
Deal found 5/5$1,346
Sat 10/127:30 amSTL - KIX
2 stops24h 45mJapan Airlines
Sat 10/196:40 amKIX - STL
2 stops31h 18mJapan Airlines
Deal found 5/5$1,357
Sat 10/125:30 pmSTL - KIX
1 stop35h 25mJapan Airlines
Tue 10/153:00 pmKIX - STL
2 stops38h 40mJapan Airlines
Deal found 5/5$1,488
Sat 10/125:30 pmSTL - KIX
2 stops25h 00mJapan Airlines
Tue 10/156:40 amKIX - STL
2 stops23h 00mJapan Airlines
Deal found 5/5$1,561
Sat 10/125:30 pmSTL - KIX
1 stop35h 25mJapan Airlines
Sat 10/195:45 pmKIX - STL
1 stop35h 55mJapan Airlines
Deal found 5/5$2,027
Fri 6/78:01 amSTL - KIX
2 stops22h 09mJapan Airlines
Sun 6/235:45 pmKIX - STL
1 stop19h 13mJapan Airlines
Deal found 5/5$2,639

Cheap Cathay Pacific flights from St. Louis to Kansai Intl

Explore cheap flight options specifically provided by Cathay Pacific for the route between St. Louis and Kansai Intl. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,719,943 searches. Data last updated May 5, 2024.
Some of the lowest-priced Cathay Pacific flights we've found at this time heading from St. Louis to Osaka. Deals frequently update to provide users with more options.
Sat 10/125:30 pmSTL - KIX
2 stops47h 05mCathay Pacific
Sat 10/194:20 pmKIX - STL
3 stops41h 47mCathay Pacific
Deal found 5/5$1,487
Sat 10/125:30 pmSTL - KIX
3 stops55h 25mCathay Pacific
Sat 10/194:20 pmKIX - STL
3 stops41h 47mCathay Pacific
Deal found 5/5$1,518
Fri 5/1711:40 amSTL - KIX
2 stops37h 35mCathay Pacific
Fri 5/245:50 pmKIX - STL
2 stops43h 27mCathay Pacific
Deal found 5/5$2,050
Fri 5/1711:40 amSTL - KIX
2 stops43h 45mCathay Pacific
Fri 5/244:20 pmKIX - STL
3 stops44h 57mCathay Pacific
Deal found 5/5$2,082
Fri 5/1711:40 amSTL - KIX
3 stops37h 15mCathay Pacific
Fri 5/244:20 pmKIX - STL
3 stops44h 57mCathay Pacific
Deal found 5/5$2,318

Cheap St. Louis to Kansai Intl flights in May & June 2024

Find cheap flight options from St. Louis to Kansai Intl specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,719,943 searches. Prices were last updated on May 5, 2024.
Listed are some of the best fares we've found on flights departing from St. Louis to Osaka in 2024. Check back regularly for other flight deals.
Tue 5/1410:10 amSTL - KIX
2 stops40h 10mAir Canada
Tue 5/286:00 pmKIX - STL
2 stops40h 01mAir Canada
Deal found 5/5$1,596
Tue 5/146:02 pmSTL - KIX
2 stops46h 33mMultiple Airlines
Tue 5/284:20 pmKIX - STL
3 stops44h 57mMultiple Airlines
Deal found 5/5$2,039
Fri 5/1711:40 amSTL - KIX
2 stops37h 35mCathay Pacific
Fri 5/245:50 pmKIX - STL
2 stops43h 27mCathay Pacific
Deal found 5/5$2,050
Fri 5/1711:40 amSTL - KIX
2 stops43h 45mCathay Pacific
Fri 5/244:20 pmKIX - STL
3 stops44h 57mCathay Pacific
Deal found 5/5$2,082
Fri 6/76:30 amSTL - KIX
2 stops24h 35mDelta
Sun 6/239:15 amKIX - STL
2 stops26h 40mDelta
Deal found 5/5$2,241
Fri 6/76:08 amSTL - KIX
2 stops42h 37mUnited Airlines
Sun 6/238:25 amKIX - STL
3 stops46h 00mUnited Airlines
Deal found 5/5$2,295
Fri 6/73:07 pmSTL - KIX
3 stops30h 58mMultiple Airlines
Sun 6/237:05 pmKIX - STL
3 stops32h 46mMultiple Airlines
Deal found 5/5$2,299
Fri 5/1711:40 amSTL - KIX
3 stops37h 15mCathay Pacific
Fri 5/244:20 pmKIX - STL
3 stops44h 57mCathay Pacific
Deal found 5/5$2,318
Fri 6/78:01 amSTL - KIX
2 stops22h 09mJapan Airlines
Sun 6/235:45 pmKIX - STL
1 stop19h 13mJapan Airlines
Deal found 5/5$2,639

St. Louis to Kansai Intl 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Kansai Intl in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,719,943 searches. Data last updated May 5, 2024.
Listed are some of the best fares we've found on flights departing from St. Louis to Osaka in 2024. Check back regularly for other flight deals.
Sat 10/125:30 pmSTL - KIX
1 stop35h 25mJapan Airlines
Sat 10/199:15 pmKIX - STL
2 stops40h 43mJapan Airlines
Deal found 5/5$1,346
Sat 10/127:30 amSTL - KIX
2 stops24h 45mJapan Airlines
Sat 10/196:40 amKIX - STL
2 stops31h 18mJapan Airlines
Deal found 5/5$1,357
Sat 10/125:30 pmSTL - KIX
2 stops47h 05mCathay Pacific
Sat 10/194:20 pmKIX - STL
3 stops41h 47mCathay Pacific
Deal found 5/5$1,487
Sat 10/125:30 pmSTL - KIX
1 stop35h 25mJapan Airlines
Tue 10/153:00 pmKIX - STL
2 stops38h 40mJapan Airlines
Deal found 5/5$1,488
Sat 10/125:30 pmSTL - KIX
3 stops55h 25mCathay Pacific
Sat 10/194:20 pmKIX - STL
3 stops41h 47mCathay Pacific
Deal found 5/5$1,518
Sat 10/125:30 pmSTL - KIX
2 stops25h 00mJapan Airlines
Tue 10/156:40 amKIX - STL
2 stops23h 00mJapan Airlines
Deal found 5/5$1,561
Tue 5/1410:10 amSTL - KIX
2 stops40h 10mAir Canada
Tue 5/286:00 pmKIX - STL
2 stops40h 01mAir Canada
Deal found 5/5$1,596
Sat 10/125:30 pmSTL - KIX
1 stop35h 25mJapan Airlines
Sat 10/195:45 pmKIX - STL
1 stop35h 55mJapan Airlines
Deal found 5/5$2,027
Tue 5/146:02 pmSTL - KIX
2 stops46h 33mMultiple Airlines
Tue 5/284:20 pmKIX - STL
3 stops44h 57mMultiple Airlines
Deal found 5/5$2,039

St. Louis to Kansai Intl flights leaving soon

Find last-minute flight options from St. Louis to Kansai Intl for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,719,943 searches. Data last updated May 5, 2024.
Book one of these great deals on flights from St. Louis to Osaka. Tip: verify your flight details before completing your reservation.
Tue 5/1410:10 amSTL - KIX
2 stops40h 10mAir Canada
Tue 5/286:00 pmKIX - STL
2 stops40h 01mAir Canada
Deal found 5/5$1,596
Tue 5/146:02 pmSTL - KIX
2 stops46h 33mMultiple Airlines
Tue 5/284:20 pmKIX - STL
3 stops44h 57mMultiple Airlines
Deal found 5/5$2,039
Tue 5/146:02 pmSTL - KIX
1 stop34h 53mMultiple Airlines
Tue 5/281:15 pmKIX - STL
2 stops19h 26mMultiple Airlines
Deal found 5/5$3,180

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 2,719,943 searches. Data last updated May 5, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,346 - $2,806

Route

Depart

Return

Price

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Sat 10/12

1 stop35h 25m

Osaka Kansai Intl

Sat 10/19

2 stops40h 43m

$1,346

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Sat 10/12

2 stops24h 45m

Osaka Kansai Intl

Sat 10/19

2 stops31h 18m

$1,357

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Sat 10/12

2 stops47h 05m

Osaka Kansai Intl

Sat 10/19

3 stops41h 47m

$1,487

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Sat 10/12

1 stop35h 25m

Osaka Kansai Intl

Tue 10/15

2 stops38h 40m

$1,488

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Sat 10/12

3 stops55h 25m

Osaka Kansai Intl

Sat 10/19

3 stops41h 47m

$1,518

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Sat 10/12

1 stop17h 35m

Osaka Kansai Intl

Tue 10/15

1 stop21h 40m

$2,132

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Fri 6/7

2 stops24h 35m

Osaka Kansai Intl

Sun 6/23

2 stops26h 40m

$2,241

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Fri 6/7

3 stops30h 58m

Osaka Kansai Intl

Sun 6/23

3 stops32h 46m

$2,299

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Fri 5/17

1 stop34h 53m

Osaka Kansai Intl

Fri 5/24

2 stops25h 04m

$2,806

Flights are sorted by cheapest first

Deals found on 5/5

When is the cheapest time to fly from St. Louis to Osaka Kansai Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Kansai Intl. Price data was last updated on May 5, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Osaka Kansai Intl Airport flight should consider departing on Tuesday mornings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Kansai Intl by month

Plan your trip from St. Louis to Kansai Intl by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to Kansai Intl is currently $0 while a round-trip flight costs $1,853. Price data was last updated on April 28, 2024.

Currently, February is the cheapest month in which you can book a flight from St. Louis to Osaka Kansai Intl Airport (average of $1,044). Flying from St. Louis to Osaka Kansai Intl Airport in July is currently the most expensive (average of $1,426). 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.

January

$1,095

February

$1,044

March

$1,246

April

$1,188

May

$1,190

June

$1,268

July

$1,426

August

$1,220

September

$1,133

October

$1,175

November

$1,230

December

$1,382

Temperature and rainfall in Kansai Intl by month

Plan your trip to Kansai Intl by taking into account the average temperature and rainfall totals by month.

OSA

Temperature

42.8 - 84.2 °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 May 5, 2024.
Read through reviews of airlines operating flights from St. Louis to Osaka, such as Japan Airlines, Cathay Pacific and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.3
Very good
1,482 reviews

Crew

8.7

Overall

8.3

Food

7.9

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Reviews

1 / 10

Good food. Great crew. Online access to upgrade to Economy Plus was confusing and difficult. Or possibly just sold out. JAL's English website is challenging.

8.3
Very good
1,482 reviews
8.3
Very good
1,482 reviews

Crew

8.7

Overall

8.3

Food

7.9

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Reviews

1 / 10

Good food. Great crew. Online access to upgrade to Economy Plus was confusing and difficult. Or possibly just sold out. JAL's English website is challenging.

8.1
Very good
10,826 reviews
8.3
Very good
1,482 reviews

Crew

8.7

Overall

8.3

Food

7.9

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Reviews

1 / 10

Good food. Great crew. Online access to upgrade to Economy Plus was confusing and difficult. Or possibly just sold out. JAL's English website is challenging.

7.8
Good
1,107 reviews
8.3
Very good
1,482 reviews

Crew

8.7

Overall

8.3

Food

7.9

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Reviews

1 / 10

Good food. Great crew. Online access to upgrade to Economy Plus was confusing and difficult. Or possibly just sold out. JAL's English website is challenging.

7.4
Good
11,118 reviews
8.3
Very good
1,482 reviews

Crew

8.7

Overall

8.3

Food

7.9

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Reviews

1 / 10

Good food. Great crew. Online access to upgrade to Economy Plus was confusing and difficult. Or possibly just sold out. JAL's English website is challenging.

7.3
Good
14,713 reviews
8.3
Very good
1,482 reviews

Crew

8.7

Overall

8.3

Food

7.9

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Reviews

1 / 10

Good food. Great crew. Online access to upgrade to Economy Plus was confusing and difficult. Or possibly just sold out. JAL's English website is challenging.

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.

  • Can I find flights from St. Louis to Osaka Kansai Intl Airport for under $1,400 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Osaka Kansai Intl Airport for under $1,400. The cheapest flight booked recently is on Japan Airlines for just $1,346, but on average you can expect to pay $1,977.

  • Are there last-minute flights available from St. Louis to Osaka Kansai Intl Airport for under $1,600?

    There are currently 3+ open flights from St. Louis to Osaka Kansai Intl Airport within the next 7 days for less than $1,600.

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

    According to our current data, Japan Airlines ($1,346), Cathay Pacific ($1,487), and United Airlines ($2,132) 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 23% less than the average price by searching for these airlines.

  • What does STL to KIX mean?

    STL stands for Lambert-St Louis Airport, while KIX stands for Osaka Kansai Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

  • Can I find deals for flights from St. Louis to Kansai Intl that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Kansai Intl flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Kansai Intl with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Kansai Intl flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by 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.

  • Can I find deals for flights from St. Louis to Kansai Intl that allow pets onboard?

    Many airlines flying from St. Louis to Kansai Intl offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Kansai Intl?

    Yes, you can often find last-minute deals on St. Louis to Kansai Intl flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Osaka Kansai Intl Airport flight deals updated?

    The St. Louis to Osaka Kansai Intl Airport flight deals you see on this page were last updated on 5/5.

See more FAQs

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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.

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 2,719,943 searches. Data last updated May 5, 2024.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest$972Average$1,080FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
United AirlinesCheapest$1,668Average$1,861FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Search flights from St. Louis to Kansai Intl by cabin class

Find flights from St. Louis to Kansai Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to Kansai Intl?

When you search for this flight from St. Louis to Kansai Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Kansai Intl?

Cheapflights simply makes it quick and affordable to book flights from St. Louis to Kansai Intl by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from St. Louis to Kansai Intl with no change fees?

Yes, we can. To see specific flights from St. Louis to Kansai Intl with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from St. Louis to Kansai Intl become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Kansai Intl from St. Louis today and book when prices fit your budget.

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