$327 Find Cheap Flights from St. Louis to Japan

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 Japan departing on 1/28. 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.
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Cheap Flights from St. Louis to Japan

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Tokyo
Tokyo1 stop$772
Okinawa
Okinawa2 stops$706
Fukuoka
Fukuoka2 stops$824
Hiroshima
Hiroshima2 stops$729
Tokyo
Tokyo1 stop$772
Okinawa
Okinawa2 stops$706
Fukuoka
Fukuoka2 stops$824
Hiroshima
Hiroshima2 stops$729

Book Cheap St. Louis to Japan Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Japan 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Japan

Tue, Feb 3 - Thu, Feb 19
Air Canada Logo
4:05 pm - 7:10 pmSTL-ITM
36h 05m2 stops
Air Canada Logo
4:00 pm - 3:29 pmITM-STL
38h 29m2 stops
$685Air Canada
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Wed, Feb 11 - Fri, Feb 27
ANA Logo
8:05 am - 11:05 pmSTL-OKA
24h 00m2 stops
ANA Logo
11:35 am - 7:19 pmOKA-STL
22h 44m2 stops
$688ANA
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Thu, Jan 29 - Wed, Feb 4
United Airlines Logo
9:57 am - 7:25 pmSTL-OKA
42h 28m2 stops
United Airlines Logo
12:15 pm - 2:30 pmOKA-STL
41h 15m2 stops
$768United Airlines
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Thu, Feb 19 - Mon, Mar 2
United Airlines Logo
12:15 pm - 7:25 pmSTL-OKA
64h 10m2 stops
United Airlines Logo
3:10 pm - 4:44 pmOKA-STL
40h 34m2 stops
$785United Airlines
Find Deal
Fri, Feb 6 - Sun, Feb 15
Delta Logo
6:00 am - 2:35 pmSTL-HND
17h 35m1 stop
Delta Logo
4:50 pm - 11:10 pmHND-STL
21h 20m2 stops
$786Delta
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Sun, Feb 8 - Mon, Mar 2
Delta Logo
10:19 am - 5:45 pmSTL-HND
16h 26m1 stop
Delta Logo
4:25 pm - 4:55 pmHND-STL
15h 30m1 stop
$796Delta
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Sun, Feb 15 - Sat, Feb 28
Japan Airlines Logo
6:30 am - 6:50 pmSTL-KIX
21h 20m1 stop
Japan Airlines Logo
7:00 am - 1:49 pmKIX-STL
21h 49m2 stops
$824Japan Airlines
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Tue, Feb 3 - Thu, Feb 19
Japan Airlines Logo
3:20 pm - 8:25 amSTL-KIX
26h 05m2 stops
Japan Airlines Logo
5:50 pm - 11:48 pmKIX-STL
20h 58m1 stop
$828Japan Airlines
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Mon, Dec 1 - Tue, Feb 10
American Airlines Logo
5:17 am - 3:30 pmSTL-NRT
19h 13m1 stop
American Airlines Logo
5:00 pm - 9:15 pmNRT-STL
19h 15m1 stop
$845American Airlines
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Sun, Feb 15 - Sat, Feb 28
American Airlines Logo
6:30 am - 6:50 pmSTL-KIX
21h 20m1 stop
American Airlines Logo
5:50 pm - 11:48 pmKIX-STL
20h 58m1 stop
$851American Airlines
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Booking Insights

KAYAK's insights & trends for St. Louis to Japan flights

Get data-powered insights and trends into flights from St. Louis to Japan 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 Japan?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Japan, 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 Japan is September, when tickets cost $733 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,295 and $1,162 respectively.

Good to know

Low seasonAugust
Cheapest flight$327
Best time to beat the crowds but there is an average 56% increase in price.
Most popular time to fly and prices are also 18% lower on average.
Flight from St. Louis to Tokyo

FAQs - booking Japan flights

  • Do I need to have a visa to fly from St. Louis to Japan?

    U.S. citizens who only plan to be in Japan for a few days or even weeks won't need to have visas to enter. You will, however, need to have a visa if you're planning to be in Japan for over 90 days. You'll also need both a valid American passport and a return ticket to remain in Japan.

  • Where are the most common stops on flights from St. Louis to Japan?

    Flights from St. Louis to Japan will stop at any number of airports en route to their final destinations. Some of the airports between St. Louis and Japan that are utilized for layovers include Los Angeles International Airport (LAX) Chicago O'Hare International Airport (ORD), Dulles International Airport (IAD) and George Bush Intercontinental Airport (IAH).

  • What is the most kid-friendly airline for flights from St. Louis to Japan?

    Many airlines that provide flights from St. Louis to Japan can cater to kids if you'll be bringing them with you on a flight. Delta goes above and beyond by providing children with everything from activity kits designed to keep them busy to healthy snacks to stop them from getting hungry.

  • How can I help my airline make a flight from St. Louis to Japan more sustainable?

    Almost all airlines that offer flights from St. Louis to Japan are working to become more sustainable these days. You can help the airline that you choose with this mission by packing light for your trip to Japan and by steering clear of generating too much waste while on your flight.

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

    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 Japan.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to Japan 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 Japan?

    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 from St. Louis to Japan with an airline and back with another airline.

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

    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 from St. Louis to Japan up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Japan?

    The cheapest time of day to fly to Japan is generally in the afternoon, when round-trip flights cost $1,103 on average. Morning departures are around 6% more expensive than evening flights, on average. The most expensive time of day to fly to Japan is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,308.

Top tips for finding cheap flights to Japan

  • Even though St. Louis Lambert International Airport (STL) is about 6,500 miles away from Japan, quite a few airlines can help you take flights from St. Louis to Japan. American Airlines, ANA, Delta, Japan Airlines, and United Airlines can all provide flights that will get you to Japan. Take advantage of this by shopping around for the best deals on flights.
  • One thing to keep in mind when searching for flights from St. Louis to Japan is that there are many airports throughout Japan. Narita International Airport (NRT) and Haneda Airport (HND) are good choices for those wishing to visit the Tokyo area. Kansai International Airport (KIX) and Osaka International Airport (ITM), meanwhile, are the best options for those booking flights to the Osaka area.
  • Nonstop flights from St. Louis to Japan are few and far between, but you can find one-stop flights. ANA, for example, has one-stop flights from St. Louis Lambert International Airport to Haneda Airport that will stop at Chicago, while Delta flights will stop at Atlanta before arriving at Haneda Airport.
  • Flying first class on flights from St. Louis to Japan will make sense for those who can afford it. An airline like Japan Airlines can set you up with a comfortable lie-flat seat in first class, in addition to other amenities like in-flight entertainment options and a long list of dining options you can enjoy.
  • You'll need to get to St. Louis Lambert International Airport at least 2 hours early to catch a flight to Japan. When you get there, you can kill time by hanging out at one of the airport's lounges. The Admirals Club will be available for American Airlines passengers, while the Wingtips Lounge will be open to passengers from all airlines for a fee.

Reviews of the top 5 airlines serving from St. Louis to Japan

 
Need help choosing which airline to fly with from St. Louis to Japan? 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 1596 reviews
8.2Comfort
7.8Entertainment
8.7Crew
8.4Boarding
7.7Food
Airline reviews

I traveled business class from Lax to Narita flight Jl61. The crew was attentive and polite. Food was good quality and service was as it should be. Narita to Bengaluru Jl753was another story in business class. The cabin was darkened for the 9hr:30min flight, food was mediocre, service was below standard and crew can't speak English to save their lives. When you ask for noodles soup from Ala carte they gave cup of noodles while Lax to Narita i was served the best Ramen noodles in a big bowl. Why the disparity on this leg of the journey.....or is it because there were mostly Indian passengers and it really did not matter to Jal to bother as its a poor country and Indians refrain from speaking up? A good airline but differentiation like this brings their reputation and business down.

8.0 Excellentsudha, Oct 2025LAX - NRT
Read more Japan Airlines reviews

I traveled business class from Lax to Narita flight Jl61. The crew was attentive and polite. Food was good quality and service was as it should be. Narita to Bengaluru Jl753was another story in business class. The cabin was darkened for the 9hr:30min flight, food was mediocre, service was below standard and crew can't speak English to save their lives. When you ask for noodles soup from Ala carte they gave cup of noodles while Lax to Narita i was served the best Ramen noodles in a big bowl. Why the disparity on this leg of the journey.....or is it because there were mostly Indian passengers and it really did not matter to Jal to bother as its a poor country and Indians refrain from speaking up? A good airline but differentiation like this brings their reputation and business down.

Japan Airlines was excellent as usual once on the plane. Cabin crew was wonderful as usual. Boarding was solid on the Honolulu leg. For Thai Airways the boarding was less organized. I was in an earlier group but they weren’t clear with the numbers or instructions. Flight crew from Japan to Thailand was very good.

Terrible. Our flight was delayed by 15 hours. We lost a full day of our vacation.

highly recommend for trip to japan only reason why i gave good not excellent is because their selection of movies and tv shows in English is more limited .

We asked for Hindu vegetarian meal in advance and the quality of the food was horrendous. Never flying JAL again!

Japan airline is excellent service .I recommend to Kayak and Japan airline to Frend.

Overall a great experience. One complain was the vegetarian food that my wife had which was mostly boiled vegetables with not much flavor.

Very accommodating and kind airline crews. The plane is also big which makes the passengers more comfortable and relax

I actually didn’t make it onto the flight. I spent quite a few hours trying to rebook the flight just to get screwed out of $5000. Fun!

We booked business class round trip from Delhi to San Diego and back. On our last leg from Bangalore to Delhi we were down graded to economy class which was big disappointment other than that everything was great.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The aircraft interior is old and tired on this aircraft. The entertainment system never worked despite the crews attempt to reset the system.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Old plane and old configuration/seats but still comfortable for a morning flight

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

The person I bought the ticket for didn’t make the flight.

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

Same as last comment. Food sucks. Quality. Not surprising most people have no clue about nourishment Clearly

Not the fault of United—weather, reroute around weather, time sitting on tarmac, arrived couple hours late, too late for train into city necessitating a much pricier cab but weather…can’t be helped.

Friendly and professional flight crew. Aside from departure delay after boarding, easy flight and smooth landing.

Great smooth flight. Had a seating change, but that was an improvement. Thanks United Airways Crew.

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

Flight was delayed leaving Dallas. Arrived about 2 hours later than scheduled.

Flight delayed and missed connection. Rescheduled flight cancelled after 6 hrs wait. Rerouted thru ORD, flight cancelled, overnight stay in ORD. Still in the air on new flight!

We are too tired and frustrated to comment politely at this point

Terrible. Our luggage was delayed and couldn’t be delivered for several days. We got bad information from the airline agents at baggage claim. We had to pick up our car so we wouldn’t be charged for an extra day. We got lost in the maze of airport parking. The baggage claim agents didn’t offer us any compensation for our extra time and expense. We are tired, hungry and very frustrated.

The flight was flawless and we even arrived between 20 and 25 minutes early!

The only thing to like was that we eventually got to our destination

Delayed delayed delayed and no offer for food or vouchers

Disliked having to wait a little longer to disembark from the plan when we landed in London

I would like to get my money back. I flight was 4 hours late on the way to detroit, And same on my way back to Brussels they cancelled my flight and give me an other ticket and i had to wait 5 hours.

All attendents were very efficient, pleasant and happy. Everything went smoothly. The seats could have been wider. There could have been more free food instead of just one small bar.

Snacks were just placed and many people were hungry and unaware they were available. Ran out of water bottles. Attendants not available. Missed entire meal.

My seat was one of those that couldn't recline, but the problem was that it was abnormally upright, so the headrest actually made the seat concave, which was uncomfortable and hard on my lower back. I had to ball my jacket up and use it as lumbar support. goodness I had it with me.

Boarding was so so after zone 3 was called all other zones went in

I liked a lot , the flight attendant so nice ,the seat very comfortable I enjoyed the flight , I will do it again with Air Canada,

The cabin crew was professional and there were plenty of movie choices, but the food was a bit sub-standard.

Plane left an hour late, I missed my connection and my bow case was never even loaded on the plane in VA. I deal with this type of nonsense everytime I fly air canada.

For goodness sake, board from the back of the plane to the front and assign overhead space. It would fix everything. Seriously.

Elderly female flight attendant was not customer friendly. There were only about 12 people on a regional jet that had about 60 seats. There were 8 exit row seats and none of them were taken. We attempted to sit in those seats and the flight attendant gave the standard " you didn't pay for those" so she would not allow us to move. What harm would that have caused ? They assigned seats to 5 of the 12 people in 2 rows, row 20 and 21. A simple friendly customer experience gesture of allowing us to sit in exit rows would have gone a long way in me having a very favorable impression on Air Canada. After that I have very poor impression of Air Canada and will not fly with them when I can avoid it.

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