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STL - KIX

$565 Find cheap flights from St. Louis to Osaka

This is the cheapest one-way 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 10/22. 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
lør. 6/1
lør. 6/8

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 43,740,974 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.
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5:30 pm - 6:55 pmSTL-KIX
35h 25m1 stop
9:15 pm - 3:40 pmKIX-STL
32h 25m2 stops
$1,517Japan Airlines
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lør., okt. 12 - tir., okt. 15
5:30 pm - 8:30 amSTL-KIX
25h 00m2 stops
9:15 pm - 3:40 pmKIX-STL
32h 25m2 stops
$1,590Japan Airlines
Find Deal
lør., okt. 12 - tir., okt. 15
5:30 pm - 8:30 amSTL-KIX
25h 00m2 stops
6:40 am - 3:40 pmKIX-STL
23h 00m2 stops
$1,591Japan Airlines
Find Deal
lør., okt. 12 - tir., okt. 15
5:25 pm - 4:20 pmSTL-KIX
32h 55m2 stops
6:00 pm - 8:01 pmKIX-STL
40h 01m2 stops
$1,727Air Canada
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tir., maj 14 - tir., maj 28
7:15 am - 2:50 pmSTL-KIX
17h 35m1 stop
4:50 pm - 12:30 amKIX-STL
21h 40m1 stop
$2,131United Airlines
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lør., okt. 12 - tir., okt. 15
6:02 pm - 6:35 amSTL-KIX
46h 33m2 stops
4:20 pm - 11:17 pmKIX-STL
44h 57m3 stops
$2,142
Find Deal
tir., maj 14 - tir., maj 28
6:02 pm - 6:55 pmSTL-KIX
34h 53m1 stop
1:15 pm - 6:41 pmKIX-STL
19h 26m2 stops
$2,761
Find Deal
tir., maj 14 - tir., maj 28

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

$565
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 $565 for a one-way ticket and $1,517 for a round-trip.

  • 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?

    oneworld, and Star Alliance are the airline alliances operating flights between St. Louis and Osaka, with Star Alliance 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 1485 reviews
8.7Crew
8.2Comfort
8.4Boarding
7.9Food
7.8Entertainment
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.

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

All flights were on time and boarding was issue free

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

Great! The plane was decently sized and comfortable. The staff was nice and there was great in flight entertainment

Food was terrible Not many options Stewards dont care Delay

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

Our original business class flight was cancelled so we not only downgraded but we were also spread out across the plane not sitting together in separate middle seats. My poor kids were scared and couldn’t see me on the flight and the crew wasn’t sensitive to the situation and what the airlines did to us. Very dissatisfied with United airlines.

Book cheap flights from St. Louis to Osaka

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Osaka found on KAYAK in the last 72 hours.
10/22tir.
3 stops
42h 10mSTL-KIX
$565
10/22tir.
2 stopsJapan Airlines
35h 00mSTL-KIX
$674
10/22tir.
1 stopJapan Airlines
35h 25mSTL-KIX
$687

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St. Louis - Osaka Flights

Departure:

St. Louis (STL)United States

Destination:

Osaka (KIX)Japan

Cabin classes: