Cheap flights from St. Louis to Tokyo from $431
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Tokyo departing on 12/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Fly from
Fly to
Route
Depart
Return
St. LouisTokyo
STL Lambert-St Louis - NRT Tokyo Narita
STLNRT
Lambert-St Louis
Mon 2/1
4:05 pm-4:30 pm
2 stops33h 25m
Tokyo Narita
Tue 2/16
6:45 pm-3:04 pm
2 stops35h 19m
St. LouisTokyo
STL Lambert-St Louis - NRT Tokyo Narita
STLNRT
Lambert-St Louis
Fri 2/5
4:05 pm-4:30 pm
2 stops57h 25m
Tokyo Narita
Tue 2/16
6:45 pm-3:04 pm
2 stops35h 19m
St. LouisTokyo
STL Lambert-St Louis - HND Tokyo Haneda
STLHND
Lambert-St Louis
Mon 2/1
9:41 am-6:25 pm
1 stop17h 44m
Tokyo Haneda
Fri 2/12
6:00 pm-11:56 pm
1 stop20h 56m
St. LouisTokyo
STL Lambert-St Louis - HND Tokyo Haneda
STLHND
Lambert-St Louis
Sun 2/7
9:41 am-6:25 pm
1 stop17h 44m
Tokyo Haneda
Fri 2/19
6:00 pm-11:56 pm
1 stop20h 56m
St. LouisTokyo
STL Lambert-St Louis - HND Tokyo Haneda
STLHND
Lambert-St Louis
Mon 2/1
6:00 am-5:45 pm
2 stops20h 45m
Tokyo Haneda
Fri 2/12
5:35 pm-11:39 pm
2 stops21h 04m
St. LouisTokyo
STL Lambert-St Louis - HND Tokyo Haneda
STLHND
Lambert-St Louis
Mon 2/1
6:30 am-3:05 pm
2 stops17h 35m
Tokyo Haneda
Fri 2/12
4:50 pm-4:54 pm
1 stop15h 04m
St. LouisTokyo
STL Lambert-St Louis - HND Tokyo Haneda
STLHND
Lambert-St Louis
Tue 2/2
10:48 am-9:10 pm
1 stop19h 22m
Tokyo Haneda
Tue 2/16
6:20 pm-6:06 pm
1 stop14h 46m
St. LouisTokyo
STL Lambert-St Louis - NRT Tokyo Narita
STLNRT
Lambert-St Louis
Tue 2/2
6:15 am-3:30 pm
1 stop18h 15m
Tokyo Narita
Wed 2/17
5:05 pm-6:06 pm
1 stop16h 01m
St. LouisTokyo
STL Lambert-St Louis - NRT Tokyo Narita
STLNRT
Lambert-St Louis
Sat 1/30
6:45 pm-3:00 pm
1 stop29h 15m
Tokyo Narita
Wed 2/17
6:00 pm-6:06 pm
1 stop15h 06m
St. LouisTokyo
STL Lambert-St Louis - NRT Tokyo Narita
STLNRT
Lambert-St Louis
Mon 2/1
6:06 am-3:15 pm
1 stop18h 09m
Tokyo Narita
Thu 2/18
6:00 pm-6:06 pm
1 stop15h 06m
See travel insights to Tokyo from
How to get the cheapest flight ticket from St. Louis to Tokyo
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between St. Louis and Tokyo?
Prices are currently low for flights on this route.
Typical prices usually range from $990 to $1,407.The lowest price recently found on this route was $796.
What is the cheapest month to fly to Tokyo?
The cheapest month to fly to Tokyo from St. Louis is in February. Flight prices, which tend to average around $856, are often lower during this time because this is during the off-season. If you’re not able to fly to Tokyo in February, then January is your next best option. Flight prices from St. Louis to Tokyo during January average around $945.
How far in advance should I book a flight from St. Louis to Tokyo?
You are more likely to see cheaper flights to Tokyo from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Tokyo for around $1,282 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Tokyo from St. Louis for as low as $916 on momondo.
Can stopping save me money on St. Louis to Tokyo flights?
You could potentially save up to 12% on your flight if you consider stops on a St. Louis to Tokyo flight.
How have St. Louis to Tokyo flight prices changed over time?
As of October 2026, prices for St. Louis to Tokyo flights are approximately 3% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Lambert-St Louis to Tokyo?
Cathay Pacific, Japan Airlines, and Delta are the most popular carriers operating from Lambert-St Louis to Tokyo
What airlines fly to Tokyo?
Delta, United Airlines and Japan Airlines are the top three most popular airlines that fly to Tokyo from St. Louis according to our data. Delta is the first choice among our users, with 28% of people opting to fly with this airline when traveling to Tokyo. Keep in mind that there are 6 different airlines that fly to Tokyo on a routine basis, so you have a few additional options to choose from.
Which airport is the most popular layover for flights between St. Louis and Tokyo?
Chicago (ORD) was the most common stop: 59% of momondo users choosing 1-stop flights on this route connected there.
Which layover airport offers the lowest fares from St. Louis to Tokyo?
Flights via Montreal (YUL) offer the lowest average round-trip price of $799.
Which layover airport has the shortest travel time from St. Louis to Tokyo?
Flights connecting via Detroit (DTW) have the shortest average one-way travel time: 15h 25m.
Which layover airport has the shortest connection time from St. Louis to Tokyo?
Denver (DEN) has the shortest average layover time for this route: 1h 08m.
When to book flights from St. Louis to Tokyo
Cheap St. Louis to Tokyo (STL to TYO) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to Tokyo
Frequently asked questions about flying from St. Louis to Tokyo
How far is Lambert-St Louis to Tokyo by plane?
The straight-line distance from Lambert-St Louis to Tokyo is 6388.4 mi. By plane, this route typically takes 15h 46m.
When did momondo last update prices for flights from Lambert-St Louis Airport to Tokyo?
Prices for flights from Lambert-St Louis Airport to Tokyo were last updated today.
How many operators does momondo search for flights from Lambert-St Louis Airport to Tokyo?
The number of operators available for flights from Lambert-St Louis Airport to Tokyo is 6 as of October 2026.
How old do you have to be to fly from Lambert-St Louis Airport to Tokyo?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Tokyo.
What documentation or ID do you need to fly to Tokyo?
The travel and health documents you'll need for your trip to Tokyo may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Tokyo. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from St. Louis to Tokyo?
momondo data reveals that the most frequently booked airline on the route from St. Louis to Tokyo is United Airlines, representing 30% of all bookings. The subsequent popular airlines are Delta at 17%, Air Canada at 16%, and ANA at 16%.
Best airlines flying from St. Louis to Tokyo
Compare and see reviews for airlines that fly from St. Louis to Tokyo with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $667 | Free Cancellation | Rating 7.1 11,748 reviews | |||
| PriceFrom $697 | Free Cancellation | Rating 7.4 10,328 reviews | |||
| PriceFrom $697 | Free Cancellation | Rating 7.0 12,147 reviews | |||
| PriceFrom $739 | Free Cancellation | Rating 7.8 8,649 reviews | |||
| PriceFrom $785 | Free Cancellation | Rating 8.3 1,321 reviews | |||
| PriceFrom $846 | Free Cancellation | Rating 8.3 1,935 reviews |
Traveling to a place near Tokyo?
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Why should I use momondo to find a flight deal from St. Louis to Tokyo?
It is quick and easy to find St. Louis to Tokyo flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Tokyo that suits you.
Can I find flights from St. Louis to Tokyo with flexible booking policies on momondo?
momondo does allow users to show only those flights to Tokyo from St. Louis which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from St. Louis to Tokyo?
momondo provides multiple filters to help you find the best flight to Tokyo from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from St. Louis to Tokyo right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of St. Louis to Tokyo flights. All you need is a valid email address and we will do the rest; it is that quick and easy.