$329 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 1/27. 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
Tokyo1 stop$659
Okinawa
Okinawa2 stops$746
Fukuoka
Fukuoka2 stops$845
Hiroshima
Hiroshima2 stops$1,002
Tokyo
Tokyo1 stop$659
Okinawa
Okinawa2 stops$746
Fukuoka
Fukuoka2 stops$845
Hiroshima
Hiroshima2 stops$1,002

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, Jan 20 - Tue, Jan 27
Multiple Airlines Logo
2:50 pm - 4:00 pm
STL
-
NRT
34h 10m1 stop
Multiple Airlines Logo
6:30 pm - 1:54 pm
NRT
-
STL
34h 24m1 stop
$659Multiple Airlines
Mon, Feb 23 - Thu, Mar 5
Hawaiian Airlines Logo
7:00 am - 4:00 pm
STL
-
NRT
18h 00m1 stop
Hawaiian Airlines Logo
6:30 pm - 11:59 pm
NRT
-
STL
20h 29m1 stop
$669Hawaiian Airlines
Sun, Feb 8 - Fri, Feb 27
Air Canada Logo
9:57 am - 4:20 pm
STL
-
NRT
39h 23m2 stops
Air Canada Logo
6:45 pm - 10:36 am
NRT
-
STL
30h 51m2 stops
$680Air Canada
Mon, Feb 9 - Fri, Feb 27
Air Canada Logo
4:05 pm - 4:40 pm
STL
-
HND
33h 35m1 stop
Air Canada Logo
6:50 pm - 10:36 am
HND
-
STL
30h 46m2 stops
$682Air Canada
Mon, Feb 23 - Thu, Mar 5
American Airlines Logo
9:35 am - 6:30 pm
STL
-
HND
17h 55m1 stop
American Airlines Logo
8:25 pm - 11:59 pm
HND
-
STL
18h 34m1 stop
$728American Airlines
Mon, Feb 16 - Wed, Mar 4
United Airlines Logo
9:55 am - 11:05 pm
STL
-
OKA
22h 10m2 stops
United Airlines Logo
12:10 pm - 9:40 pm
OKA
-
STL
24h 30m2 stops
$746United Airlines
Tue, Feb 3 - Thu, Feb 19
American Airlines Logo
7:04 am - 5:35 pm
STL
-
ITM
19h 31m2 stops
American Airlines Logo
3:25 pm - 10:58 pm
ITM
-
STL
22h 33m2 stops
$749American Airlines
Thu, Feb 19 - Tue, Mar 3
United Airlines Logo
6:55 pm - 7:25 pm
STL
-
OKA
57h 30m2 stops
United Airlines Logo
12:10 pm - 7:14 pm
OKA
-
STL
22h 04m2 stops
$773United Airlines
Tue, Feb 3 - Thu, Feb 19
Japan Airlines Logo
3:20 pm - 8:25 am
STL
-
KIX
26h 05m2 stops
Japan Airlines Logo
5:50 pm - 11:59 pm
KIX
-
STL
21h 09m1 stop
$829Japan Airlines
Mon, Feb 16 - Mon, Feb 23
Japan Airlines Logo
6:38 am - 6:50 pm
STL
-
KIX
21h 12m1 stop
Japan Airlines Logo
9:05 pm - 1:43 pm
KIX
-
STL
31h 38m2 stops
$849Japan 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 September, when tickets cost $747 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,289 and $1,163 respectively.

Good to know

Low seasonJanuary
Cheapest flight$315
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 18% 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.
8.3
Japan AirlinesOverall score based on 1663 reviews
8.4Boarding
7.7Food
7.8Entertainment
8.2Comfort
8.7Crew
Airline reviews

Checking in as an international flyer is a bit tedious

8.0 ExcellentAnonymous, Dec 2025
ITM - NRT
Read more Japan Airlines reviews

Checking in as an international flyer is a bit tedious

I was so hungry , from Boston to Tokyo, only 2 big food .

It was okay, short flight so nothing much to comment.

The crew was nice, the food could be better, and at least 2 bathroom stalls were out of service.

The crew was attentive and provided everything I needed. The food in business class was excellent.

Good experience for economy transpacific. Reasonable comfortable seats. Food was not as good as I expected or had on other prior transpacific flights but likely attribute that to rising cost of supplies. Staff is courteous. Overall, very good.

Good the crew was nice very kind and very helpful

The original email I received and flight that I paid for was for Japan Airlines. Since JAL is a partner with American, I ended up on an American Airlines plane. This would not be a problem, except that JAL allows 2 check in bags for free and American only allows 1. A $100.00 unexpected expense was very disturbing, especially since I will have to pay it again on my way home. I feel like it was a bait and switch. I never would have chosen American Airlines if I had known that I would have to pay $200.00 in baggage fees, above and beyond my airfare. Secondly, the check in counter representative did not realize that I had TSA pre-check, so I had to return to the check-in desk on a different floor to get a new boarding pass. The AA representative helping at the check-in kiosks was very helpful, kind, polite, and professional when I returned for the new boarding pass. Thirdly, the crew was not as friendly as I have experienced on other airlines. Their tone when speaking to other passengers was not always polite. The food was better than I expected. However, I am used to having a station where one can serve themselves water, juice or grab a snack. That was not the case on this flight. Truly makes me think twice about booking with American Airlines. I am very disappointed.

Crews are rude and short. Example: after my drink and was ready to prep my bed to rest. I tried to give my empty glasses to the steward while she was playing her card game on her iPad. The steward told me to take the glass back to my table instead of taking the glass out of my hand. Compare Japanese steward it’s like heaven and hell.

I felt that the customer service improved compared to a several years ago.

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

This flight was a first class choice and left much to be desired. Seat backs on seats were falling apart and torn. Seats actually didn't come to a "full & upright position". Pull out table was sprung. Not any significant leg room. All in all we were on an obviously older plane and felt overcharged for what we received as first class.

A 12 hour flight during the day with one real meal service - are you kidding? Also the breakfast was one of the worst and not what was listed

Flight was delayed several times. At one point, they "pulled back" 15 minutes from the delayed boarding and sent a text saying we would board sooner than previously advised. The flight then was delayed again. And when we boarded, there was an unspecified technical issue which had us waiting in the plane for about an hour.

Delta is a good airline. I've never had an issue with Delta. I'll continue to fly with them until they show me that I shouldn't.

The only thing nice I can say is the flight crew was really nice and apologetic about the situation. They shared as much information as they had and advised us on what we could do about missing connecting flights. The boarding process was so slow. The gate agent was working by herself and should have had someone working with her. It took almost an hour to board because she was trying to board a full flight of people and provide customer service to everyone who was flying standby and/or had questions. It was really chaotic. This didn't help the fact that we were delayed and folks were missing connections the longer it took.

The gate attendants and the crew were terrible. Because of high winds, they needed to carry more fuel, so they had to get volunteers to take the next flight at 6 am the next day. They did a terrible job of it - our flight ended up taking off just under 3 hours of the scheduled time. I hope to never fly Delta again.

Did not realize internet screen was hidden between seats and no info printed!!!!

2 of the seats in row 31 the entertainment system was not working, and one seat the tray table did not go all the way down. Flight arrived early and departed on time which was great.

Very good flight crew and very nice people staff were incredible especially the gate agent

Going to Tokyo was not so good. Back to Detroit was excellent.

I’m so sorry, I can’t remember her name, I believe it was Dimpti. She was stellar, also a mature Asian flight attendant, lots of flowers in her hair, just as amazing! But literally the crew was AWESOME . Only downside is there weren’t any charging outlets. Maybe I needed to ask a flight attendant , but it would’ve been nice to have one easily accessible.

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

Aircraft was noisy, old and never dimmed the lights on a night flight even on business class! I flew 17 times on United and probably another 40 on other airlines United USA /Europe flights were the worst to include luggage delayed once going to europe and once coming back

Check how old the airframe is, some older ones have inoperable seat back entertainment or power.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

United is an incompetent airline. They parked the plane on the tarmac for an hour after arriving because they “didn’t have a gate available” it was actually some sort of lie because as we de planed there were approximately 9 open and manned and empty gates that we walked past. Many people on the flight missed connections for the hour long sit on the tarmac. Utterly baffling and incompetent behavior from United flight ops.

Crew were all friendly and helpful. It was a short flight so just a beverage service with a cookie. After we were boarded the plane took about 45 minutes to leave the gate but it was New Year’s Eve so not shocking there was some delay. Overall good experience and very grateful.

After the door had been closed, the cockpit makes an announcement that catering is running late and it is not the airline's fault. It is their fault in the sense that we had to sit for 2 hours or more when we could have stayed in the terminal. Poor communications between catering and airline. This caused a young man to lose his temper and he went storming out hitting objects. He had complained to the gate agent that he had already waited at the gate 7 hours and when can the airplane leave? Airilnes do a poor job of explaining delays, maintenance issues, etc. whereas being truthful may gain more sympathy or understanding.

The flight was very smooth and the meal in business class was great.

The captain brought my 6 year old son into the cockpit and allowed him to ask questions, sit in the captain’s chair and talk about all the gears and levers. Made the trip very special for him.

I take this flight about 6-8 times per year. It is convenient and saves an hour or two by skipping PDX, SEA, PHX, or ORD (but it takes longer to get bags to the carousel than Alaska Airlines). I wish the food service were better (but they might cut back on it because it is a red-eye). The WifI seems to go down about an hour out of Anchorage, and then comes back about an hour later...so be warned if this is an issue for you.

Better service. No food options, but we did get drinks and a cookie.

Boarding was organized and timely. Food was mediocre, especially for first class travel.

We were 4+ hours delayed. AA is absolutely obnoxious. They just kept pushing back the time to the point where we did not get into Vegas until after midnight when we were supposed to arrive like 845pm.

My last flight on 25 Dec, it’s Christmas Day, everyone happy and very good mood. I really enjoy traveling with Americans Airlines from Miami to Minneapolis my home town after long flight from lhe to Doha then Miami. Thank you again to make my travels comfortable and relaxed. Best regards

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

Flight cancellations, delays, mass confusion and disorganization! That’s Air Canada for you, nothing new. I would have chosen a different airline if it were an option, and Air Canada continues to prove they don’t care about their customers.

everything was fine. but paying for 1 piece of check-in luggage and denying passengers to board with carry-on luggage which by air line's standards does not fit is not acceptable. when one travels for a longer time one needs to have some essentials

Couldn't fit knees, only 1 toilet working, didn't get anything to drink cause the stewards were not able to get to us

Flight was canceled for a reason they knew hours before but did not mention. Next the gate chnage from 37 to 38 at least 10 times. Ridiculous.

The flight from SFO to YVR was delayed and my bag did not make it to my next flight from YVR to SYD. It took almost 3 days after I landed to get my bag and when I got it, it was filled with dust

Our biggest complaint about Air Canada is that if you don’t like your seat during check-in, there’s a fee to move elsewhere. On our flight from YUL to FFL, we were charged to change seats—just regular seats. What’s maddening is that the plane wasn’t even full; there were even a few people sleeping in the middle row sections (entire rows, completely empty), using them as beds. In my opinion, charging passengers for seat changes is a cash grab by Air Canada. They are definitely not the airline they were back in the day. I suppose they need to gouge the consumer now that they pay their attendants while on ground. One out of 10.

Nothing specific. Cabin temperature was too high for some reason.

This flight with a lot empty place , and I have more room, feeling comfortable.

It was just fine. I managed to make all my connection too sbut had trouble in Munich with no wheel chair and trouble trying to get help from the airport people to get to the other terminal for my flight. Finally a wonderful lady Amelia, helped me to make my flight connection Timon with zero time to spare.

Over 40 years ago my AC return flight was canceled, during this last summer the same thing happened. AC denied everything Canadian like paying for accommodations and basic necessities. So why would I ever want to fly AC again? This last flight my wife took the return flight had problems and left late, so I guess they are getting better. However I have no faith in this airline so I drove to this last destination! I'll never fly AC again!!!

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

Information on your arrival and departure airports