$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 8/21. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Japan

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

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

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

Flight Deals
Booking Insights
Flight Deals

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$967
Okinawa
Okinawa2 stops$1,164
Fukuoka
Fukuoka2 stops$1,202
Hiroshima
Hiroshima2 stops$1,446
Tokyo
Tokyo2 stops$967
Okinawa
Okinawa2 stops$1,164
Fukuoka
Fukuoka2 stops$1,202
Hiroshima
Hiroshima2 stops$1,446

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
Wed, Aug 5 - Fri, Aug 14
Japan Airlines Logo
8:35 am - 7:50 pm
STL
-
ITM
21h 15m
2 stops
Japan Airlines Logo
7:25 am - 3:48 pm
ITM
-
STL
22h 23m
2 stops
$1,143Japan Airlines
Tue, Sep 15 - Tue, Sep 22
Japan Airlines Logo
7:44 am - 7:50 pm
STL
-
ITM
22h 06m
2 stops
Japan Airlines Logo
7:05 am - 2:25 pm
ITM
-
STL
21h 20m
2 stops
$1,144Japan Airlines
Wed, Aug 5 - Fri, Aug 14
United Airlines Logo
5:10 am - 2:50 pm
STL
-
KIX
19h 40m
2 stops
United Airlines Logo
4:55 pm - 10:09 am
KIX
-
STL
31h 14m
2 stops
$1,198United Airlines
Sun, Aug 30 - Wed, Sep 2
United Airlines Logo
9:16 am - 5:05 pm
STL
-
ITM
41h 49m
2 stops
United Airlines Logo
12:50 pm - 7:31 pm
ITM
-
STL
20h 41m
2 stops
$1,199United Airlines
Sun, Aug 30 - Sun, Sep 6
ANA Logo
8:00 am - 10:45 pm
STL
-
OKA
24h 45m
2 stops
ANA Logo
8:00 am - 7:31 pm
OKA
-
STL
25h 31m
2 stops
$1,229ANA
Sun, Aug 30 - Sun, Sep 6
ANA Logo
1:18 pm - 9:00 am
STL
-
OKA
29h 42m
2 stops
ANA Logo
11:55 am - 7:31 pm
OKA
-
STL
21h 36m
2 stops
$1,230ANA
Thu, Aug 6 - Sat, Aug 15
American Airlines Logo
8:35 am - 7:50 pm
STL
-
ITM
21h 15m
2 stops
American Airlines Logo
8:20 am - 3:48 pm
ITM
-
STL
21h 28m
2 stops
$1,299American Airlines
Wed, Jul 22 - Wed, Jul 29
American Airlines Logo
6:36 am - 8:35 pm
STL
-
FUK
23h 59m
2 stops
American Airlines Logo
7:00 am - 2:05 pm
FUK
-
STL
21h 05m
2 stops
$1,316American 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 $1,234 and $1,193 respectively.

Good to know

Low seasonAugust
Cheapest flight$414
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly with an average 19% increase in price.
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 1162 reviews
8.7Crew
8.5Boarding
7.8Food
8.0Entertainment
8.2Comfort
Airline reviews

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.

8.0 ExcellentSarah, Apr 2026
SEA - HND
Read more ANA reviews

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!!!!

Best service! Food was Japanese fine dining and they even sang happy birthday to me since it was my birthday halfway through the flight. Bed was comfortable and cabin was quiet.

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.

Crew hospitality was as expected of a Japanese carrier, however the foods were lacking. The dinner options provided all contained pork and the breakfast was lacking in both quality and volume. I was starving throughout the trip.

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

Everything could have benn better. Short fly, no food, no entertainment and no wifi.

Flight delayed. Air broken. Cabin was hot enough to pass out. Delta shuttle’s becoming worse and worse.

my mom urmila patel needed a wheelchair which was not available on the curbside. she needed to walk almost 50 meters inside (at the risk of falling) and then had to wait in line to get a wheelchair (this is not ok). Once obtained she had to seat in it for 30-45 minutes for someone to take her in thru the checkin process (which was fairly smooth and easy). the lady who helped her with her checkin process was very courteous and helpful

On the return flight, flight attendant Britt went out of her way to inform passengers that several of us had tight connections.

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

Staff at the check-in counter were friendly, happy and helpful. They tagged our bags and sent us to “bag drop off” but were not very clear about where that was. The airport was busy we headed off in what we thought was the right direction until a gentleman waved us down and actually came after us. He was the baggage handler for Delta and recognized our “deer in the headlights “ look-he brought us to the right area (which was marked as the Southwest Airlines Drop Off) and sent us on our way. Wonderful guy, low key and working with a big smile on his face. Loved it. Loved him.

During the flight, the only refreshments provided were crackers and soft drinks; no substantial food was offered despite the international route. Furthermore, our initial flight was delayed, causing us to miss the connecting flight in Atlanta. The airline did not hold the connection, and we were informed that the next available flight is not for another 24 hours. While I am aware of alternative options via JetBlue, they operate out of JFK, which is not a viable solution for us as a resident of New Jersey.

Arlene was a great flight attendant. I also liked how one of the other flight attendants gave us a heads up about snacks and asked everyone to remove their headphones when it was their turn to order. Good idea.

Long flight but comfortable and not freezing as I have experienced on Hawaiian flights to the islands. They gave us blankets just in case. Nice touch.

I haven’t flown economy in over 20 years but it was not bad. Room by my feet for my bag and seat was roomy enough. Surprised in a good way.

It was perfect! I've never flown with United before, but I definitely will in the future

I had a cancelled flight because of technical issues going to my destination, and a delayed flight coming home. All told it wasn’t a total bust.

Just a bad day to fly. Flight was delayed from scheduled 6:50 pm departure to 8:50 pm. Combination of factors mostly related to weather at the destination airport (which is where the incoming flight originated) which delayed the inbound flight over an hour. Once on board, we taxied but had to hold again on the taxiway for 10 minutes or so. We did not get wheels up until after 9 pm. The flight was smooth but about 18 minutes from our destination, we had to hold for several minutes more due to weather at ORD. We finally landed at ORD about 11:08 pm (accounting for the time difference, that was about a 3 hour delay from our scheduled departure time). It felt like we were never going to get to our destination. But the flight crew and attendants were very good. The movie selection onboard was also very nice. Got to watch half of a movie just during our taxi from the gate at ATL due to the delay!

Fine. The issues I had were associated with luggage being delayed from Turkey to Tanzania

No meal service to the back of the plane as it started late or was too slow to get it out before it was time to land.

Terrible, if possible won't be flying again anytime soon!

Efficient boarding and early departure. Very smooth flight. Early arrival in ATL. Great flight.

We purchase first class seats for the first time for multiples of standard economy ticket. There was no access to the club lounge and no priority boarding. The meal and the service once on the plane were superior and the seat was nicer, but not worth the price difference. I will be happy to seat in economy and spend the difference on more travel.

The business class seat is exceptional. I wish the food is more palatable.

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

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?

Departed Palm Springs over an hour late because there’s only one gate, and it has always delayed by the arriving and departing flight to Toronto and the arriving flight from Vancouver.

I checked a bag and there was only one agent to assist all customers with any issues.

I want to thank Carlos at the Miami AC desk - he was amazing and went over and above to help us out. Thank you Carlos and all the best to you!!! You made our faith in AC feel great! Sincerely, David Cubitt

Flight was canceled due to mechanical issues. After a considerable wait in the queue, Air Canada customer service was very helpful to get us on another flight. I am disappointed to report our rescheduled flight is for three days from now. Three days of extra expenses and inconvenience is unacceptable.

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

Information on your arrival and departure airports