$648 Find Cheap Flights from Japan to St. Louis - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to St. Louis departing on 9/2. 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 Japan to St. Louis

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

Tue, Sep 8 - Mon, Sep 14
Delta Logo
4:05 pm - 11:16 pm
HND
-
STL
21h 11m
1 stop
Delta Logo
6:54 pm - 1:05 pm
STL
-
HND
28h 11m
2 stops
$925Delta
Thu, Sep 10 - Thu, Sep 17
Delta Logo
6:25 pm - 11:42 pm
HND
-
STL
19h 17m
2 stops
Delta Logo
6:00 am - 4:15 pm
STL
-
HND
20h 15m
2 stops
$925Delta
Wed, Sep 9 - Thu, Sep 17
Delta Logo
6:25 pm - 11:42 pm
HND
-
STL
19h 17m
2 stops
Delta Logo
6:40 am - 4:15 pm
STL
-
HND
19h 35m
1 stop
$925Delta
Wed, Sep 9 - Thu, Sep 17
Delta Logo
4:20 pm - 11:16 pm
HND
-
STL
20h 56m
2 stops
Delta Logo
6:00 am - 4:15 pm
STL
-
HND
20h 15m
2 stops
$925Delta
Tue, Sep 8 - Mon, Sep 14
Delta Logo
4:35 pm - 9:31 pm
HND
-
STL
18h 56m
2 stops
Delta Logo
6:54 pm - 1:05 pm
STL
-
HND
28h 11m
2 stops
$925Delta
Thu, Sep 10 - Thu, Sep 17
Delta Logo
4:05 pm - 4:47 pm
HND
-
STL
14h 42m
1 stop
Delta Logo
10:29 am - 4:15 pm
STL
-
HND
15h 46m
1 stop
$925Delta
Thu, Sep 10 - Thu, Sep 17
Delta Logo
6:25 pm - 8:35 pm
HND
-
STL
16h 10m
1 stop
Delta Logo
6:00 am - 4:15 pm
STL
-
HND
20h 15m
2 stops
$925Delta
Wed, Sep 9 - Thu, Sep 17
Delta Logo
6:25 pm - 8:35 pm
HND
-
STL
16h 10m
1 stop
Delta Logo
10:29 am - 4:15 pm
STL
-
HND
15h 46m
1 stop
$925Delta
Tue, Sep 8 - Mon, Sep 14
Delta Logo
3:15 pm - 11:42 pm
HND
-
STL
22h 27m
1 stop
Delta Logo
5:59 pm - 4:15 pm
STL
-
HND
32h 16m
1 stop
$925Delta
Sat, Sep 12 - Sat, Sep 19
Delta Logo
4:05 pm - 4:47 pm
HND
-
STL
14h 42m
1 stop
Delta Logo
5:47 pm - 1:05 pm
STL
-
HND
29h 18m
1 stop
$1,023Delta
Booking Insights

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

Get data-powered insights and trends for flights to St. Louis to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to St. Louis?

These are the best round-trip prices found by users searching on KAYAK in the last 5 days.

In the last 5 days, the cheapest flight deal to St. Louis was found on the route from Tokyo, at $925 return. The most popular connection is from Tokyo to St. Louis and KAYAK users have found round-trip deals for as low as $925 in the last 5 days.

Good to know

Cheapest flight

$648
Flight from Tokyo to St. Louis

FAQs - booking St. Louis flights

  • What is the cheapest flight to St. Louis?

    In the last 5 days, the cheapest flight deal to St. Louis was found on the route from Tokyo, at $925 return. The most popular connection is from Tokyo to St. Louis and KAYAK users have found round-trip deals for as low as $925 in the last 5 days.

  • How far is Lambert-St Louis Airport from central St. Louis?

    Central St. Louis is 13 miles away from Lambert-St Louis Airport.

  • What is the name of St. Louis’s airport?

    When flying to St. Louis, you'll arrive at Lambert-St Louis Airport (STL). The airport is also known as Lambert Field, Lambert-St Louis, St. Louis Lambert, or St. Louis Lambert Intl.

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

    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 to St. Louis.

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

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

    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 St. Louis 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 to St. Louis?

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

  • How many direct flights to St. Louis are there each week?

    Each week there are around 2,894 direct flights from within Japan to St. Louis. The most common day for departures is Sunday, with 15% of flights taking off on this day.

Top tips for finding cheap flights to St. Louis

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest St. Louis flight deals.

Reviews of the top airline flying from Japan to St. Louis

 
See real verified KAYAK customer reviews for airlines flying to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Japan to St. Louis. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to St. Louis? 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 1888 reviews
8.2Comfort
8.7Crew
7.8Entertainment
8.4Boarding
7.7Food
Airline reviews

Food we select all the airlines, but they said not selected, it’s bad experience.

8.0 ExcellentAnonymous, Jul 2026
NRT - SAN
Read more Japan Airlines reviews

Food we select all the airlines, but they said not selected, it’s bad experience.

My seat was so hard and uncomfortable. I took AA to Japan longer flight no tailbone pain. Coming back on JA shorter flight my tailbone was killing me no cushion on seat or just worn out.

Not very much of anything, it probably was once of my least favore business class flights I have experience in all the times that I flew Boz class

I always enjoy flying with Japanese Airlines. The whole experience is always a pleasure. This flight was no exception. Thank you Kayak for making it so easy to decide.

Very smooth onboarding and offboarding. Food provided was cold and not the best.

Terrible experience. Staff would not even refill my tea once. While they refilled a fellow Japanese persons wine 7 times. They also lost my luggage. Horrible. Go elsewhere

main courses of the primary meal were not good- the beef dish was really not good-

Service and the plane itself were terrific, but the extensive delays both before we left and after were a real pain.

It was good and there is nothing to complain about .

The seats were narrower compare to other airlines traveling to Asia, which makes them uncomfortable after 6 hours The plane was worn, my tray table wasn’t level, You had to pay for WiFi and no Bluetooth option to use your own headphones. The crew was excellent in servicing the food and drinks. However I felt they needed some extra hands to serve the two sections of economy at the same time. They run out of one of the food option as they got to the rear section of the plane. Having travel on other Asian airlines during this trip; American Airlines can learn a bit from them, but I wonder if their service is geared towards a clientele that has become accustomed to not expect to much from an airline.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Wentzville
Farmington
Eureka
Litchfield
Grafton
Shrewsbury
Glencoe

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

Information on the airport you'll fly into in St. Louis