$414 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 5/5. 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
1 adult, Economy, 0 bags

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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
Tokyo2 stops$1,049
Okinawa
Okinawa2 stops$1,164
Fukuoka
Fukuoka3 stops$1,242
Hiroshima
Hiroshima2 stops$1,327
Tokyo
Tokyo2 stops$1,049
Okinawa
Okinawa2 stops$1,164
Fukuoka
Fukuoka3 stops$1,242
Hiroshima
Hiroshima2 stops$1,327

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, Sep 15 - Tue, Sep 22
Air Canada Logo
12:10 pm - 4:25 pm
STL
-
KIX
38h 15m
2 stops
Air Canada Logo
6:00 pm - 6:41 pm
KIX
-
STL
38h 41m
2 stops
$947Air Canada
Tue, Sep 15 - Tue, Sep 22
Air Canada Logo
8:55 am - 4:25 pm
STL
-
KIX
17h 30m
1 stop
Air Canada Logo
6:00 pm - 6:41 pm
KIX
-
STL
38h 41m
2 stops
$952Air Canada
Mon, Apr 27 - Wed, May 6
ANA Logo
4:05 pm - 3:50 pm
STL
-
NRT
33h 45m
1 stop
ANA Logo
5:35 pm - 8:25 pm
NRT
-
STL
16h 50m
1 stop
$1,059ANA
Wed, Sep 30 - Wed, Oct 14
ANA Logo
8:55 am - 7:50 pm
STL
-
KIX
20h 55m
2 stops
ANA Logo
6:00 pm - 2:00 pm
KIX
-
STL
34h 00m
1 stop
$1,113ANA
Tue, Sep 15 - Tue, Sep 22
Japan Airlines Logo
9:46 am - 8:30 pm
STL
-
ITM
20h 44m
2 stops
Japan Airlines Logo
7:05 am - 2:25 pm
ITM
-
STL
21h 20m
2 stops
$1,135Japan Airlines
Wed, Aug 5 - Fri, Aug 14
Japan Airlines Logo
8:30 am - 5:45 pm
STL
-
ITM
19h 15m
2 stops
Japan Airlines Logo
8:20 am - 3:48 pm
ITM
-
STL
21h 28m
2 stops
$1,212Japan Airlines
Wed, Jul 29 - Wed, Aug 5
United Airlines Logo
5:10 am - 5:30 pm
STL
-
FUK
46h 20m
3 stops
United Airlines Logo
12:15 pm - 6:17 pm
FUK
-
STL
20h 02m
2 stops
$1,242United Airlines
Wed, Jul 29 - Wed, Aug 5
United Airlines Logo
6:01 am - 5:30 pm
STL
-
FUK
21h 29m
2 stops
United Airlines Logo
12:15 pm - 6:17 pm
FUK
-
STL
20h 02m
2 stops
$1,246United Airlines
Wed, Jul 29 - Wed, Aug 5
American Airlines Logo
7:06 am - 8:35 pm
STL
-
FUK
23h 29m
2 stops
American Airlines Logo
7:00 am - 3:48 pm
FUK
-
STL
22h 48m
2 stops
$1,366American Airlines
Tue, May 19 - Tue, May 26
American Airlines Logo
6:21 am - 7:50 pm
STL
-
HIJ
23h 29m
2 stops
American Airlines Logo
1:45 pm - 11:56 pm
HIJ
-
STL
24h 11m
2 stops
$2,272American Airlines
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 January, when tickets cost $725 (return) on average. On the other hand, the most expensive months are June and May, when the average cost of round-trip tickets is $1,253 and $1,229 respectively.

Good to know

Low seasonJanuary
Cheapest flight$426
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from St. Louis to Tokyo Narita Airport

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.

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.
8.4
ANAOverall score based on 1170 reviews
8.6Boarding
7.8Food
8.0Entertainment
8.7Crew
8.2Comfort
Airline reviews

Matsuyama to Tokyo is basically a puddle jumper flight, so it was as good as one should expect. No meal, no entertainment, and none expected.

8.0 ExcellentAnonymous, Apr 2026
MYJ - HND
Read more ANA reviews

Matsuyama to Tokyo is basically a puddle jumper flight, so it was as good as one should expect. No meal, no entertainment, and none expected.

The staff is amazing, I cannot stress that enough! The food is really good and snacks at stations to take for yourselves. Economy seating is fine, not the most comfortable, but our friends in Premium Economy said they were very comfortable! Decent entertainment options, but being built in, you have to use their cheap headsets unless you have your own plug in ones. I only have Bluetooth earbuds.

Seats were extremely cramped even for economy. Food was atrocious. Crew was fine but no follow up, additional drinks offered etc. For a 14 hour flight I expected more.

Boarding was good. Inflight service was good. Alcoholic drinks could have been served free.

Suite lounge in Honolulu is the best lounge in Honolulu. I love the huge bathrooms in ANA first Class on the A380 Honu plane. Japanese meal was outstanding and service was amazing. Everything was just excellent. Can’t wait to fly again

The bed / seat was very hard , not at all comfortable for an 11 hr flight .. food was strange , never have I eaten roast chicken and mash potatoes for breakfast!! Very odd

Their was $200 charge for 2nd luggage, airplane very new and flight smooth. Flight time seem faster then Asian stoping Korea then china.

Delays, plane transfer due to malfunction, no entertainment, limited beverage service.

Seat was broken. Check in was not possible until we reached the gate, by then we were separated.

The food was not great; but I don’t expect much from airline food. However, the staff was incredible! I had gotten to the gate when I realized I had left my computer at the security checkpoint! I told a staff member and she said, “well, you will miss this flight if you go back to get it” It was a long way from the gate. I asked if I might get on the next flight. She sent for another staff member, and he took me to the gate desk. He found an open seat, and said,”okay, go run to get your computer, I will get you a new boarding pass.” I rran back, retrieved my computer, and returned to the gate. It was closed, but I found the gate nearby where the next ANA flight was leaving. Another staff member was ready for me, and printed me a new pass, and even made sure I still had an aisle seat that I requested! I got in line and continued my trip. These people are amazing, helpful, and friendly. My trip could have been ruined, or postponed at a great expense, but they saved the day! 5 stars!!!!

Overall, a solid flight experience. Boarding was quick and efficient, even with a full and overbooked flight. The flight crew did a great job providing attentive and friendly service throughout. I flew in economy, and while the seats were acceptable, they could definitely use more cushioning, especially for a 14-hour flight. By the end, it was quite uncomfortable to remain seated. Legroom was also limited, particularly with a bag stored under the seat and the passenger in front reclining. That said, everything else went smoothly, and I appreciated the professionalism of the crew.

The flight was delightful overall. The check-in and boarding were on smooth and on time. Amenities and staffs were elevated. However, if glasses were served instead of cups, there should be a complete premium.

Sure I would’ve liked a little more space, but it was better than economy. I bring my own food because I have food allergies it would be nice if they offered larger salads or more vegetables instead of starch it was really a good flight. I don’t wanna complain. I’m grateful to fly at all safely. Thank you to the pilots.

I enjoyed flying on Japan Airline. However, my flight from Osaka to Tokyo did not give us enough time to make my connecting flight. We missed our next flight due to the following: We were seated on row 24 which causes us to get off of plane late, having to go to the restroom, having to exit the airport and take a shuttle-bus from terminal one to terminal three, having to go through security and immigration. We were disappointed that we had to catch another flight

Flight crews are very attentive and polite. Cabin and toilets are clean. Food is above average for economy class. We missed our connecting flights because the first flight was delayed, the ground crews at Tokyo were very helpful, providing all the information and support (including cash for our train ticket) to get us to our destination. Very impressive. No wonder they are always at the top ten lists.

Excellent! So happy that the crew members were so helpful and friendly and able to understandably communicate. They’re very receptive with someone like me, with disability. I love that I did not even have to ask for luggage help like, having to place and take down my carry-on luggage in and out of the over-head compartment. Hope, help is extended to disabled passenger(s) through out class classifications they’ve bought; economy or business class it might be. As a disabled person myself, I’m truly of great appreciation of this kind of help. Means a lot !!! Thank you so very much JAL crew. You out done others on this customer service part of the trip. Please continue to do so. From now on, I’ll choose JAL as my airline whenever I have to fly to any southeast asian countries. And I will disseminate my excellent travel experience with you to others.

American Airlines food is horrible. Also, paid to fly JAL on all segments, but received a much lower quality. I was disappointed to learn that we would be using American Airlines on this flight, which has less comfort, entertainment, choices, and lower standard of service. Overall not satisfied.

Food was very mediocre. Economy is pretty uncomfortable. Crew was excellent and responsive.

Not as good as I expected, I couldn't use the screen to watch movies or anything else because it wasn't 'STEADY' AT ALL, it moved every single time that the passenger who sat on that seat moved, that caused me fell dizzy and nauseous when I tried to use it, so I ended up with only sleeping and eating with no entertainment all my haul flight on premium economy seat, plus the passenger who sat next to me, she just loved to spread her very long hair down on my shoulder, face, arm, sometimes her hair just whacked my face till I really wanted to offer her my hairband!, super annoying 😑 and that my bad experience with that flight.

My plans changed and I tried to cancel or change the flight for credit but was giving the run around and denied . Not great

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

Okay considering we had weather delays which the Pilot notified us of immediately!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

Flight from Fort Wayne to Atlanta was the smallest in terms of cabin space that I've ever seen. A carry on I've used for 20 years BARELY fit in overhead compartment. I'm 5'10" and felt very cramped. Not the best experience.

I am writing to express my dissatisfaction with the poor service and unprofessional staff we encountered when traveling with an infant. Our flight was delayed, and the gate staff failed to manage the boarding process appropriately. Due to incorrect, unavailable, or missing 'pink tag' stroller and car seat check-in procedures at the gate, we were forced to board last. Furthermore, the gate staff was rude and dismissive, causing significant distress to our infant. To make matters worse, one of our checked items—an infant sleeper/lounger—was returned to us broken. Given the unsafe handling of essential equipment and unprofessional treatment, I expect a prompt resolution regarding compensation for the damaged items.

We departed and landed early which was a nice surprise. The boarding process was slow.

N Everything was perfect from boarding to assistance to baggage in Tampa

Subpar. The seating on the plane is almost unbearable. We are literally touching and/or sitting on each other which is totally unacceptable and shameful. Pilots and crew was very accommodating and friendly.

The boarding was organized and informative but the plane was tight meaning that you were sitting on one another and extremely uncomfortable. It’s disappointing that can’t have common seating comfort on the plane.

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

Poor communication, flight was delayed for preventable reasons. I missed my connection.

It was better than excellent. The staff in Mason City were great. The young woman that pushed my wheelchair did more than could be expected of her. She came from India 17 years ago. I don't remember her name.

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

All good flight was 35 minutes early when arriving in Edinburgh

Flights were on time actually early service was good and crew cheerful

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

The boarding timing needs to be improved. The flight was delayed again because it took way too long to board. I was already exhausted from sleeping at the airport and spending all day there due to delay from my previous flight that connected in Chicago.

I had a terrible experience. My flight got delayed from Atlanta to Chicago on Monday April 6, 2026, and that led to me missing my next flight to Brussels. United Airlines didn’t provide me with any accommodation for shelter. I had to sleep at the airport in Chicago. The next flight I was put on didn’t leave until the evening hours of Tuesday 4/7/2026.

Boarding was again a "free for all". We were boarding group 4, and almost the entire plane was able to board before us. It's a shame that someone who follows the rules, gets the short end of the stick. Not fair.

Flight left on time, arrived early, pleasant staff provided water, coffee, etc. access to bathrooms was reasonable and were well maintained. blankets were available, lots of entertainment options. LUGGAGE SERVICE WAS GREAT. I got my one checked bag quickly and was able to make a bus connection for a 2 hour bus ride saving me from waiting another 1.5 hours.

Flight home was delayed multiple times, did not get home until 2am

the check-in lady at ORD was extremely rude and unprofessional. very disappointed as it was supposed to be a celebration for my wife's birthday and it really put a damper on things. if i wanted to be treated like trash, i would have flown Economy! (as opposed to business class)

My original flight was cancelled and then rebooked four hours later on a recovery flight, but I was checked in as stanby and had no seats so as a family of four we were concerned about not being seated altogether. Our flight then got delayed by another 1.5 hours and when seats were assigned at the gate, three of the four of us were together and we could get my wife closer, they offered no assistance.

The plane was very cramped to point there was no way not to touch person beside you and a stewardess screamed at my son when I touched her arm to get her attention to let her know she forgot to give him his dinner when she passed him and gave a dinner to passenger behind him. Very inappropriate response and She never came back to apologize and other stewardess said she was sorry “if I felt” she was inappropriate. Horrible experience and she should be reprimanded for her behavior

I bought a ticket from Kayak. When I got to the airport, the was no ticket. I had to pay 5X to get to my destination. No response received from Kayak. I will NEVER use them again.

My wallet was stolen while I was sleeping on the plane.

Good boarding but extremely cold temperature in both flights (60 F!).

The whole plane smelled and felt old. The seats were very uncomfortable. Multiple delays. Extra fees.

Very rude gate attendants in San Francisco who didn’t let me bring my little carry on (smaller than usual size) and after boarding I realized that there still were a lot of overhead compartment space (like a full section available in some spots). That made me lose 30 minutes at my destination at 1am and it could have broken something fragile that I had in it

The most uncomfortable flight I’ve ever been on. I’m only 5,4” and barely had enough room to exist, couldn’t even fully relax my shoulders. Not sure why they bother with snacks. Half a coke and a single cookie?? Wow. Purchasable food looked gross too. Remember when airlines used to treat you like a human being?

Everything you need to know for your flight from St. Louis to Japan

Information on your arrival and departure airports