STL - KIX

$433 Find Cheap Flights from St. Louis to Osaka - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$979
Typical prices: $1,060-$1,387
Multiple Airlines
Tue 2/6Wed 2/21
STL - KIX • 2 stops
Cheapest one-way
$579
Typical prices: $485-$1,031
Air Canada
Wed 9/19
STL - KIX • 2 stops
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Osaka Kansai Intl Airport. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
February
Cheapest • 32% price drop
August
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Toronto Pearson Intl (YYZ)
Cheapest • Avg $896 (round-trip)
San Francisco (SFO)
Shortest trip • 17h 36m (one-way)
Insights
Insights
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We hope you love your trip to Osaka Kansai Intl Airport!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Kansai Intl (STL-KIX)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Kansai Intl

Sat, Feb 6 - Sun, Feb 21
Multiple Airlines Logo
4:05 pm - 7:30 pmSTL  Lambert-St Louis-KIX Osaka Kansai Intl
36h 25m2 stops Toronto Pearson Intl Tokyo Haneda
Multiple Airlines Logo
7:25 am - 3:26 pmKIX  Osaka Kansai Intl-STL Lambert-St Louis
47h 01m2 stops Tokyo Narita Toronto Pearson Intl
$979Multiple Airlines
Mon, Feb 1 - Fri, Feb 5
Air Canada Logo
4:05 pm - 7:30 pmSTL  Lambert-St Louis-KIX Osaka Kansai Intl
36h 25m2 stops Toronto Pearson Intl Tokyo Haneda
Air Canada Logo
3:20 pm - 3:26 pmKIX  Osaka Kansai Intl-STL Lambert-St Louis
39h 06m2 stops Tokyo Haneda Toronto Pearson Intl
$1,003Air Canada
Sun, Feb 21 - Sun, Feb 28
Multiple Airlines Logo
4:05 pm - 8:25 pmSTL  Lambert-St Louis-KIX Osaka Kansai Intl
37h 20m2 stops Toronto Pearson Intl Tokyo Narita
Multiple Airlines Logo
3:20 pm - 3:26 pmKIX  Osaka Kansai Intl-STL Lambert-St Louis
39h 06m2 stops Tokyo Haneda Toronto Pearson Intl
$1,088Multiple Airlines
Sun, Oct 11 - Thu, Oct 29
Japan Airlines Logo
7:29 am - 8:35 amSTL  Lambert-St Louis-KIX Osaka Kansai Intl
35h 06m2 stops Chicago O'Hare Intl Tokyo Haneda
Japan Airlines Logo
6:50 am - 4:53 pmKIX  Osaka Kansai Intl-STL Lambert-St Louis
24h 03m2 stops Tokyo Haneda Chicago O'Hare Intl
$1,175Japan Airlines
Sun, Oct 11 - Thu, Oct 29
Japan Airlines Logo
7:29 am - 8:35 amSTL  Lambert-St Louis-KIX Osaka Kansai Intl
35h 06m2 stops Chicago O'Hare Intl Tokyo Haneda
Japan Airlines Logo
8:05 pm - 4:53 pmKIX  Osaka Kansai Intl-STL Lambert-St Louis
34h 48m2 stops Tokyo Narita Chicago O'Hare Intl
$1,176Japan Airlines
Sun, Oct 11 - Thu, Oct 29
Japan Airlines Logo
7:29 am - 8:35 amSTL  Lambert-St Louis-KIX Osaka Kansai Intl
35h 06m2 stops Chicago O'Hare Intl Tokyo Haneda
Japan Airlines Logo
6:00 pm - 11:46 pmKIX  Osaka Kansai Intl-STL Lambert-St Louis
19h 46m1 stop Los Angeles
$1,180Japan Airlines
Mon, Feb 1 - Fri, Feb 5
Air Canada Logo
4:05 pm - 7:30 pmSTL  Lambert-St Louis-KIX Osaka Kansai Intl
36h 25m2 stops Toronto Pearson Intl Tokyo Haneda
Air Canada Logo
3:20 pm - 3:26 pmKIX  Osaka Kansai Intl-STL Lambert-St Louis
39h 06m2 stops Tokyo Haneda Toronto Pearson Intl
$1,183Air Canada
Mon, Feb 1 - Fri, Feb 5
Air Canada Logo
4:05 pm - 7:30 pmSTL  Lambert-St Louis-KIX Osaka Kansai Intl
36h 25m2 stops Toronto Pearson Intl Tokyo Haneda
Air Canada Logo
3:20 pm - 3:26 pmKIX  Osaka Kansai Intl-STL Lambert-St Louis
39h 06m2 stops Tokyo Haneda Toronto Pearson Intl
$1,185Air Canada
Sun, Feb 21 - Sun, Feb 28
Multiple Airlines Logo
7:01 pm - 2:45 pmSTL  Lambert-St Louis-KIX Osaka Kansai Intl
28h 44m3 stops Dallas/Fort Worth Hong Kong Intl Taipei City Taiwan Taoyuan Intl
Multiple Airlines Logo
6:05 pm - 4:43 pmKIX  Osaka Kansai Intl-STL Lambert-St Louis
37h 38m2 stops Hong Kong Intl Chicago O'Hare Intl
$1,189Multiple Airlines
Sun, Oct 11 - Thu, Oct 29
Japan Airlines Logo
11:31 am - 10:00 pmSTL  Lambert-St Louis-KIX Osaka Kansai Intl
20h 29m2 stops Chicago O'Hare Intl Tokyo Haneda
Japan Airlines Logo
6:00 pm - 11:46 pmKIX  Osaka Kansai Intl-STL Lambert-St Louis
19h 46m1 stop Los Angeles
$1,199Japan Airlines
Booking Insights

Price, demand and travel trends for St. Louis to Osaka Kansai Intl Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from St. Louis to Osaka Kansai Intl Airport with more confidence.

What's the cheapest day of the week to fly from St. Louis to Osaka Kansai Intl Airport?

Wednesday is the cheapest day of the week to fly from St. Louis to Osaka Kansai Intl Airport, it is 32% cheaper than the average day. Friday is the most expensive day with flight prices 65% higher than average. Based on deals found by KAYAK users in the last 12 months.

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Key details for St. Louis to Osaka Kansai Intl Airport flights

Low season

December

Cheapest flight

$579
Best time to beat the crowds but there is an average 66% increase in price.
Flight from St. Louis to Osaka Kansai Intl Airport

When to book flights from St. Louis to Kansai Intl

Are your dates flexible? Find out the best times to travel from St. Louis to Kansai Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your St. Louis to Osaka Kansai Intl Airport flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from St. Louis to Osaka Kansai Intl Airport?

    Flights from St. Louis to Osaka Kansai Intl Airport usually depart from Lambert-St Louis (STL) and arrive at Osaka Kansai Intl (KIX).

  • What cabin classes can I book on flights from St. Louis to Osaka Kansai Intl Airport?

    Only Economy Class is available on flights from St. Louis to Osaka Kansai Intl Airport.

  • Which airports do connecting flights from St. Louis to Osaka Kansai Intl Airport pass through?

    One-stop flights from St. Louis to Osaka Kansai Intl Airport most commonly connect through:

    • Los Angeles (LAX) - 83% of one-stop connections
    • San Francisco (SFO) - 8% of one-stop connections
    • Toronto Pearson Intl (YYZ) - 8% of one-stop connections

    Los Angeles (LAX) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from St. Louis to Osaka Kansai Intl Airport?

    Yes. Being flexible with your travel dates can save you up to 59% on the St. Louis to Osaka Kansai Intl Airport route. Wednesday is the cheapest departure day at $850 round-trip on average, while Friday is the most expensive at $2,071, a difference of $1,221. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Osaka Kansai Intl Airport?

    Some of the most popular sights in Osaka Kansai Intl Airport are Namba Train Station, Universal Studios Japan and Dotonbori Glico Man Sign. These are among the most viewed places in Osaka Kansai Intl Airport on KAYAK.

  • How long is a flight from St. Louis to Osaka Kansai Intl Airport?

    A nonstop flight from St. Louis to Osaka Kansai Intl Airport takes 0h 00m, covering 6,595 miles.

  • Do I need a passport to fly from St. Louis to Osaka Kansai Intl Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from St. Louis to Osaka Kansai Intl Airport changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $979 to $9,470. That means the highest observed fare was about 10x higher than the lowest one.

  • How are flight prices from St. Louis to Osaka Kansai Intl Airport looking right now?

    One-way fares from St. Louis to Osaka Kansai Intl Airport are currently lower than usual. Average one-way flight prices are about $616, which is 27% below the typical average for this route.

  • How much time can I save by choosing a different layover airport from St. Louis to Osaka Kansai Intl Airport?

    Flying via Toronto Pearson Intl (YYZ) gives the shortest average 1-stop total travel time at 16h 44m, compared with 17h 36m via San Francisco (SFO) and 20h 53m via Los Angeles (LAX).

  • What is the time difference between St. Louis and Osaka Kansai Intl Airport?

    Osaka Kansai Intl Airport is 14 hours ahead of St. Louis (Japan Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Osaka Kansai Intl Airport (KIX)?

    Osaka Kansai Intl Airport (KIX) hosts 5 major car rental companies, with daily rates starting from around $11 for economy cars. Top options include:
    · Yesaway
    · CG Car Rental
    · KuMa Rental Car
    · IX Rental
    · HM Rent a Car

  • How much should I expect to pay for a St. Louis to Osaka Kansai Intl Airport flight?

    Round-trip flights from St. Louis to Osaka Kansai Intl Airport range from $1,060 to $1,387, with an average of $1,249 over the past 12 months. Anything below $1,060 counts as a good deal.

Your guide to booking St. Louis to Osaka Kansai Intl Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Wednesday departure instead of Friday. On this route, Wednesday flights average $850 - about $1,221 less than Friday (59% savings) based on the last 12 months.
  • If you can choose when to travel, plan your St. Louis to Osaka Kansai Intl Airport trip for February. Fares historically average $850 round-trip in that month - typically $1,221 less than the most expensive month, which is December (based on the last 12 months).

More options for your flight from St. Louis to Kansai Intl

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