STL - KIX

$620 Find Cheap Flights from St. Louis to Osaka - Compare and Save

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Everything you should know

Cheapest round-trip
$772
Typical prices: $1,060-$1,387
Air Canada
Thu 1/11Mon 1/15
STL - KIX • 2 stops
Cheapest one-way
$620
Typical prices: $485-$1,031
Cathay Pacific
Thu 1/4
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 • 30% 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

Mon, Jan 11 - Fri, Jan 15
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
6:50 am - 3:26 pmKIX  Osaka Kansai Intl-STL Lambert-St Louis
47h 36m2 stops Tokyo Haneda Toronto Pearson Intl
$772Multiple 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
$786Air 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
$794Air Canada
Mon, Feb 1 - Fri, Feb 5
United Airlines Logo
6:45 pm - 4:45 pmSTL  Lambert-St Louis-KIX Osaka Kansai Intl
31h 00m2 stops Chicago O'Hare Intl San Francisco
United Airlines Logo
6:35 pm - 5:13 pmKIX  Osaka Kansai Intl-STL Lambert-St Louis
37h 38m2 stops San Francisco Chicago O'Hare Intl
$843United Airlines
Mon, Feb 1 - Fri, Feb 5
United Airlines Logo
1:17 pm - 4:45 pmSTL  Lambert-St Louis-KIX Osaka Kansai Intl
36h 28m3 stops Chicago O'Hare Intl Houston George Bush Intcntl San Francisco
United Airlines Logo
6:35 pm - 10:35 amKIX  Osaka Kansai Intl-STL Lambert-St Louis
31h 00m2 stops San Francisco Chicago O'Hare Intl
$843United Airlines
Mon, Feb 1 - Fri, Feb 5
United Airlines Logo
1:17 pm - 4:45 pmSTL  Lambert-St Louis-KIX Osaka Kansai Intl
36h 28m3 stops Chicago O'Hare Intl Houston George Bush Intcntl San Francisco
United Airlines Logo
3:20 pm - 9:37 pmKIX  Osaka Kansai Intl-STL Lambert-St Louis
21h 17m2 stops Tokyo Haneda Chicago O'Hare Intl
$847United Airlines
Mon, Dec 7 - Mon, Dec 14
United Airlines Logo
11:05 am - 4:45 pmSTL  Lambert-St Louis-KIX Osaka Kansai Intl
38h 40m2 stops Newark San Francisco
United Airlines Logo
3:20 pm - 2:16 pmKIX  Osaka Kansai Intl-STL Lambert-St Louis
37h 56m2 stops Tokyo Haneda Houston George Bush Intcntl
$847United Airlines
Sat, Dec 5 - Sat, Dec 12
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
9:45 am - 3:26 pmKIX  Osaka Kansai Intl-STL Lambert-St Louis
44h 41m2 stops Tokyo Haneda Toronto Pearson Intl
$859Multiple Airlines
Thu, Feb 4 - Sun, Feb 7
Multiple Airlines Logo
4:05 pm - 5:40 pmSTL  Lambert-St Louis-KIX Osaka Kansai Intl
34h 35m2 stops Toronto Pearson Intl Vancouver Intl
Multiple Airlines Logo
9:00 pm - 3:26 pmKIX  Osaka Kansai Intl-STL Lambert-St Louis
57h 26m2 stops Tokyo Haneda Toronto Pearson Intl
$860Multiple Airlines
Sat, Dec 5 - Sat, Dec 12
United Airlines Logo
5:05 pm - 4:45 pmSTL  Lambert-St Louis-KIX Osaka Kansai Intl
32h 40m2 stops Newark San Francisco
United Airlines Logo
6:35 pm - 5:05 pmKIX  Osaka Kansai Intl-STL Lambert-St Louis
37h 30m2 stops San Francisco Chicago O'Hare Intl
$863United 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 with more confidence.

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

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from St. Louis to Osaka Kansai Intl Airport. It’s 30% cheaper than the average day, while Friday is the most expensive, with prices 69% higher.

Find deals

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

Low season

December

Cheapest flight

$620
Beat the crowds with an average 72% drop in travelers.
The most popular month to fly with an average 41% increase in travelers.
One-way 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 answers about this route, including flight times, airports, airlines and booking tips.

  • 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.

  • 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 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.

  • 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 $1,221 over the past 12 months. Anything below $1,060 counts as a good deal.

  • 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 $731, which is 13% below the typical average for this route.

  • 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 $10 for economy cars. Top options include:

    • Yesaway
    • IX Rental
    • HM Rent a Car
    • CG Car Rental
    • KuMa Rental Car

  • 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).

  • 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) - 80% of one-stop connections
    • San Francisco (SFO) - 10% of one-stop connections
    • Toronto Pearson Intl (YYZ) - 10% of one-stop connections

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

    Yes. Flexible dates can save you up to 59% on flights from St. Louis to Osaka Kansai Intl Airport. Wednesday is the cheapest departure day at $864 round-trip on average, while Friday is the most expensive at $2,071, a difference of $1,207.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • 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 51m 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 popular places can I visit in Osaka Kansai Intl Airport?

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

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 are flexible, aim for a Wednesday departure and avoid flying on Friday. On this route, Wednesday flights average $864, about $1,207 less than Friday fares (58% 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

Complete your trip to Osaka with a hotel stay or car rental

Car rentals in Osaka
Hotels in Osaka
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