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STL - KIX

Find cheap flights from St. Louis to Osaka from $1,336

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Kansai Intl departing on 9/30. 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.
1 adult
0 bags
Thu 5/23
Thu 5/30

Search hundreds of travel sites at once for deals on flights to Osaka

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Osaka, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Osaka, as well as popular online travel agencies
In the last 7 days travelers have searched 44,632,927 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

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

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Kansai Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
12:00 pm - 4:20 pmSTL-KIX
38h 20m2 stops
6:00 pm - 9:05 pmKIX-STL
41h 05m2 stops
$1,336Air Canada
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Mon, Sep 30 - Fri, Oct 25
12:00 pm - 4:20 pmSTL-KIX
38h 20m2 stops
1:15 pm - 9:05 pmKIX-STL
21h 50m2 stops
$1,341
Find Deal
Mon, Sep 30 - Mon, Oct 21
12:00 pm - 4:20 pmSTL-KIX
38h 20m2 stops
6:00 pm - 3:20 pmKIX-STL
35h 20m2 stops
$1,342Air Canada
Find Deal
Wed, Oct 2 - Wed, Oct 23
5:30 pm - 9:25 pmSTL-KIX
37h 55m2 stops
4:20 pm - 7:58 pmKIX-STL
41h 38m3 stops
$1,626Cathay Pacific
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Sat, Sep 14 - Sat, Sep 21
5:30 pm - 2:55 pmSTL-KIX
31h 25m3 stops
4:20 pm - 7:58 pmKIX-STL
41h 38m3 stops
$1,641Cathay Pacific
Find Deal
Sat, Sep 14 - Sat, Sep 21
5:30 pm - 6:55 pmSTL-KIX
35h 25m1 stop
5:45 pm - 3:40 pmKIX-STL
35h 55m1 stop
$1,699Japan Airlines
Find Deal
Sat, Oct 5 - Sat, Oct 19
7:15 am - 2:50 pmSTL-KIX
17h 35m1 stop
4:50 pm - 12:30 amKIX-STL
21h 40m1 stop
$1,707United Airlines
Find Deal
Wed, Oct 2 - Tue, Oct 22
5:30 pm - 6:55 pmSTL-KIX
35h 25m1 stop
5:45 pm - 3:40 pmKIX-STL
35h 55m1 stop
$1,800Japan Airlines
Find Deal
Wed, Oct 2 - Sat, Oct 19
7:15 am - 2:50 pmSTL-KIX
17h 35m1 stop
4:50 pm - 12:30 amKIX-STL
21h 40m1 stop
$1,807United Airlines
Find Deal
Fri, Oct 4 - Thu, Oct 24
5:30 pm - 6:55 pmSTL-KIX
35h 25m1 stop
5:45 pm - 3:40 pmKIX-STL
35h 55m1 stop
$1,955American Airlines
Find Deal
Fri, Oct 4 - Sat, Oct 19

Flights from St. Louis to Kansai Intl - Travel Insights & Trends

Get data-powered insights and trends into flights from St. Louis to Kansai Intl to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from St. Louis to Osaka Kansai Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from St. Louis to Osaka Kansai Intl Airport is January, where tickets cost $999 on average. On the other hand, the most expensive months are December and April, where the average cost of tickets is $4,111 and $2,190 respectively.

Good to know

Low season

January

High season

July

Cheapest flight

$1,336
Best time to beat the crowds with an average 41% drop in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from St. Louis to Osaka

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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking St. Louis to Osaka flights

  • What is the cheapest flight from St. Louis to Osaka Kansai Intl Airport?

    In the last 3 days, the lowest price for a flight from St. Louis to Osaka Kansai Intl Airport was $1,336 for a round-trip ticket.

  • Do I need a passport to fly between St. Louis and Osaka?

    Yes, you’ll need a passport to travel to Osaka from St. Louis.

  • Which airports will I be using when flying from St. Louis to Osaka?

    On your way to Osaka, you’ll fly out from Lambert-St Louis. You’ll be landing at Osaka Kansai Intl.

  • Which aircraft models fly most regularly from St. Louis to Osaka?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Osaka?

    Star Alliance, and oneworld are the airline alliances operating flights between St. Louis and Osaka, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Osaka, Japan Airlines or United Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Osaka are Japan Airlines and United Airlines. With an average price for the route of $1,080 and an overall rating of 8.3, Japan Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $1,861 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from St. Louis to Osaka?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Osaka.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Osaka?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Osaka from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Osaka?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Osaka with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and KIX can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Osaka?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Osaka from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airlines flying from St. Louis to Kansai Intl

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Osaka. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Kansai Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.3
Japan AirlinesOverall score based on 1486 reviews
7.8entertainment
8.2comfort
8.7crew
8.4boarding
7.9food
Airline reviews

The food was not that good. I liked the miso, green tea, and ice cream. I wasn’t able to put my carry on bag under the seat in front of me. The flight was smooth. Please expand your choices of movies especially the new ones. I can’t choose any of those films. They’re old.

8.0 ExcellentAnonymous, Apr 2024BKK - NRT
Read more about Japan Airlines reviews

The food was not that good. I liked the miso, green tea, and ice cream. I wasn’t able to put my carry on bag under the seat in front of me. The flight was smooth. Please expand your choices of movies especially the new ones. I can’t choose any of those films. They’re old.

I like the braised beef., miso soup,, and green tea. Very little choices of hollywood movies. The PA announcement in English was not very clear and very soft. I could hardly hear.

More updated movies & Chinese movies. The food sometimes overcooked. Prefer to have more neat snacks in between than just choose from the menu. Please change the menu every now and then. This is my second time flying within one year and the menu didn’t change at all!

Food is lagging. Very poor choice. Like vending machine fast food.

Please change the menu more often. The beef is not tender, more choice in ice cream flavor. Dessert is not good too.

The Experience was fantastic, it's a quick flight so no entertainment or food. Just a refreshment

Great crew, Japanese domestic flight is just a drink service but crew are very attentive

Again I paid for an upgrade on my credit card didn’t get it need a refund. . American I not good at gettin in contact for refunds.

l enjoyed the variety of good and drink choices. The flight attendants were very quick and efficient to our needs.

-Bathrooms were regularly checked/maintained. -Food was okay, but the miso soup was good. -Top of my foot got bitten by a bug when I took off my shoes and was only wearing my socks. It was swollen and very itchy for several days.

Flight delayed from Cape Town to Washington then got diverted to miami and in miami we had to fend for ourselves , im still trying to get to Shreveport now

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

I just wrote a text which was supposed to be for the flight from Denver to spokane not Frankfurt to Denver.

On time every leg of the journey and exceptional staff at counter, gate, and on board. I haven’t travelled in US for a long time and was genuinely surprised how pleasant this was.

Hated every minute of it. This flight should have only taken 1.5hrs but was delayed over 10hours. Now I am being told I cannot be compensated or refunded my ticket price or extra leg room, which I purchased but did not receive, because the airline is throwing the blame on the 3rd party I purchased tickets through and 3rd party putting the blame on airline. No one wants to help. They received their money and that's all they care about. Im going on 3 days of still trying to get to my final destination, had to cancel car rental, car insurance and hotel. Currently staying in airport until hotels open up. Thank you Lufthansa, Kayak, Underpricer and United for making this trip the worst ever.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

flight delays, staff only communicating when pushed, food service lasting a grand total of 7 minutes, stuck in seat from 45mins into flight until landing

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

the flight from Tampa departed with a delay. The food on board was poor, usually on international airlines alcoholic beverages are offered free of charge , but here it was for a fee, the cutlery was wooden, there were no hot drinks (tea, coffee). Unfortunately, I didn't take pictures of the portions of food, but it wouldn't have been enough for a child either.And in the future, I will try not to use the services of this airline

they made me check my carryon. There was space in the overhead bins.

St. Louis - Osaka Flights

Departure:

St. Louis (STL)United States

Destination:

Osaka (KIX)Japan

Cabin classes: