$349+ Cheap flights from St. Louis (STL) to Japan
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/16. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FUK
Mar 5 — Mar 121
1 adult, Economy
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Find cheap flights from St. Louis to Japan with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Japan
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Cheapest flights from St. Louis to JapanExplore the most affordable flight options available from St. Louis to Japan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.
Explore the most affordable flight options available from St. Louis to Japan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.
This KAYAK deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/37:41 am
STL
- HND
1 stop19h 04m
ANA
Tue 3/106:20 pm
HND
- STL
1 stop16h 47m
ANA
Deal found 2/1![ANA logo]()
$734
This Kiwi.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/212:51 pm
STL
- NRT
2 stops32h 34m
Multiple Airlines
Thu 3/52:30 pm
NRT
- STL
1 stop31h 32m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$738
This KAYAK deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/77:00 pm
STL
- HND
1 stop31h 45m
ANA
Wed 3/186:25 pm
HND
- STL
1 stop19h 26m
ANA
Deal found 2/1![ANA logo]()
$740
This American Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/35:12 am
STL
- NRT
1 stop19h 18m
American Airlines
Tue 3/105:30 pm
NRT
- STL
1 stop15h 59m
American Airlines
Deal found 2/1![American Airlines logo]()
$740
This Air Canada deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/36:40 pm
STL
- NRT
2 stops30h 50m
Air Canada
Tue 2/106:45 pm
NRT
- STL
2 stops31h 17m
Air Canada
Deal found 2/2![Air Canada logo]()
$747
This Air Canada deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/74:49 pm
STL
- NRT
2 stops32h 41m
Air Canada
Wed 2/116:15 pm
NRT
- STL
2 stops41h 50m
Air Canada
Deal found 2/1![Air Canada logo]()
$749
This SmartFares deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:41 am
STL
- NRT
1 stop19h 19m
Multiple Airlines
Wed 9/236:00 pm
NRT
- STL
1 stop14h 37m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$750
This Kiwi.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/212:51 pm
STL
- NRT
2 stops32h 34m
Multiple Airlines
Tue 3/102:30 pm
NRT
- STL
1 stop22h 49m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$752
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/236:55 pm
STL
- KIX
2 stops30h 45m
United Airlines
Tue 3/106:35 pm
KIX
- STL
1 stop17h 50m
United Airlines
Deal found 2/2![United Airlines logo]()
$755
This Alaska Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:41 am
STL
- NRT
1 stop19h 19m
Multiple Airlines
Fri 9/116:00 pm
NRT
- STL
1 stop14h 37m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$757
This FlightHub deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/228:17 am
STL
- HND
1 stop18h 28m
ANA
Tue 3/36:20 pm
HND
- STL
1 stop15h 54m
ANA
Deal found 2/1![ANA logo]()
$759
This SmartFares deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:41 am
STL
- NRT
1 stop19h 19m
Multiple Airlines
Thu 9/246:00 pm
NRT
- STL
1 stop14h 37m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$761
Best flights from St. Louis to JapanDiscover carefully curated flight deals from St. Louis to Japan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 3, 2026.
Discover carefully curated flight deals from St. Louis to Japan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 3, 2026.
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/235:25 pm
STL
- KIX
1 stop32h 15m
United Airlines
Tue 3/106:35 pm
KIX
- STL
1 stop17h 50m
United Airlines
Deal found 2/2![United Airlines logo]()
$755
This American Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/237:00 am
STL
- ITM
2 stops21h 55m
American Airlines
Tue 3/104:30 pm
ITM
- STL
2 stops21h 28m
American Airlines
Deal found 2/2![American Airlines logo]()
$770
This Delta deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/167:10 am
STL
- HND
2 stops19h 35m
Delta
Thu 2/198:00 pm
HND
- STL
1 stop18h 36m
Delta
Deal found 2/2![Delta logo]()
$791
This KAYAK deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/248:30 am
STL
- OKA
2 stops23h 35m
ANA
Tue 3/31:10 pm
OKA
- STL
2 stops25h 49m
ANA
Deal found 2/2![ANA logo]()
$843
This FlightHub deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/157:00 am
STL
- KIX
2 stops24h 20m
Japan Airlines
Sat 2/285:50 pm
KIX
- STL
1 stop21h 09m
Japan Airlines
Deal found 2/1![Japan Airlines logo]()
$880
This oojo deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/256:50 pm
STL
- KIX
2 stops36h 15m
Cathay Pacific
Tue 3/315:35 pm
KIX
- STL
2 stops43h 23m
Cathay Pacific
Deal found 2/1![Cathay Pacific logo]()
$1,256
This Cathay Pacific deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/186:38 am
STL
- KIX
2 stops40h 07m
Multiple Airlines
Wed 3/257:05 pm
KIX
- STL
2 stops42h 39m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$1,295
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/228:41 am
STL
- NRT
1 stop15h 59m
United Airlines
Fri 3/64:45 pm
NRT
- STL
1 stop20h 40m
United Airlines
Deal found 1/31![United Airlines logo]()
$767
This Ovago deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/187:41 am
STL
- FUK
2 stops22h 59m
ANA
Wed 2/251:00 pm
FUK
- STL
2 stops21h 14m
ANA
Deal found 2/1![ANA logo]()
$843
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/237:41 am
STL
- NRT
1 stop16h 19m
United Airlines
Fri 3/64:45 pm
NRT
- STL
1 stop20h 40m
United Airlines
Deal found 1/31![United Airlines logo]()
$767
This FlightHub deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/158:00 am
STL
- ITM
2 stops20h 55m
Japan Airlines
Sat 2/287:25 am
ITM
- STL
2 stops21h 25m
Japan Airlines
Deal found 2/3![Japan Airlines logo]()
$909
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/238:17 am
STL
- NRT
1 stop15h 43m
United Airlines
Tue 3/105:45 pm
NRT
- STL
1 stop18h 31m
United Airlines
Deal found 1/31![United Airlines logo]()
$767
This FlightHub deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/157:41 am
STL
- ITM
2 stops32h 49m
ANA
Sat 2/282:05 pm
ITM
- STL
2 stops37h 16m
ANA
Deal found 2/2![ANA logo]()
$871
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/228:41 am
STL
- NRT
1 stop15h 59m
United Airlines
Thu 3/55:45 pm
NRT
- STL
1 stop19h 31m
United Airlines
Deal found 1/31![United Airlines logo]()
$767
This Japan Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/197:00 am
STL
- ITM
2 stops21h 55m
Japan Airlines
Mon 2/234:30 pm
ITM
- STL
2 stops36h 13m
Japan Airlines
Deal found 1/31![Japan Airlines logo]()
$943
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/237:41 am
STL
- HND
1 stop19h 04m
United Airlines
Fri 3/64:25 pm
HND
- STL
2 stops19h 16m
United Airlines
Deal found 1/31![United Airlines logo]()
$771
This FlightHub deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/187:41 am
STL
- FUK
2 stops33h 44m
ANA
Tue 2/248:50 pm
FUK
- STL
2 stops33h 48m
ANA
Deal found 2/2![ANA logo]()
$939
This American Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/196:38 am
STL
- OKA
2 stops25h 12m
American Airlines
Sun 3/111:15 am
OKA
- STL
2 stops23h 14m
American Airlines
Deal found 2/1![American Airlines logo]()
$1,176
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/215:29 pm
STL
- HND
1 stop20h 21m
United Airlines
Tue 3/107:40 pm
HND
- STL
2 stops17h 54m
United Airlines
Deal found 1/31![United Airlines logo]()
$771
This oojo deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/249:59 am
STL
- KIX
3 stops38h 56m
Cathay Pacific
Tue 3/314:15 pm
KIX
- STL
3 stops44h 43m
Cathay Pacific
Deal found 2/1![Cathay Pacific logo]()
$1,303
This Expedia deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/187:00 am
STL
- OKA
2 stops46h 10m
Multiple Airlines
Wed 3/2510:15 am
OKA
- STL
2 stops51h 44m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$1,325
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/248:30 am
STL
- HND
1 stop17h 20m
United Airlines
Tue 3/107:40 pm
HND
- STL
2 stops17h 54m
United Airlines
Deal found 1/31![United Airlines logo]()
$771
This Japan Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/227:00 am
STL
- HIJ
2 stops22h 05m
Japan Airlines
Thu 2/265:55 pm
HIJ
- STL
2 stops34h 48m
Japan Airlines
Deal found 1/31![Japan Airlines logo]()
$1,171
This Ovago deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/48:21 am
STL
- ITM
2 stops19h 49m
ANA
Mon 5/257:00 pm
ITM
- STL
2 stops31h 11m
ANA
Deal found 1/31![ANA logo]()
$1,117
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/227:41 am
STL
- HND
1 stop19h 04m
United Airlines
Fri 3/64:25 pm
HND
- STL
2 stops19h 16m
United Airlines
Deal found 1/31![United Airlines logo]()
$771
This Expedia deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/194:20 pm
STL
- OKA
2 stops36h 50m
Multiple Airlines
Thu 3/2610:15 am
OKA
- STL
2 stops43h 05m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$1,414
This Japan Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/196:38 am
STL
- OKJ
2 stops42h 22m
Japan Airlines
Mon 2/235:45 pm
OKJ
- STL
2 stops45h 14m
Japan Airlines
Deal found 1/31![Japan Airlines logo]()
$1,178
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/248:30 am
STL
- HND
1 stop17h 20m
United Airlines
Thu 3/54:25 pm
HND
- STL
2 stops20h 17m
United Airlines
Deal found 1/31![United Airlines logo]()
$771
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/238:30 am
STL
- HND
1 stop17h 20m
United Airlines
Tue 3/107:40 pm
HND
- STL
2 stops17h 54m
United Airlines
Deal found 1/31![United Airlines logo]()
$771
This KAYAK deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/197:00 am
STL
- OKA
2 stops37h 00m
Japan Airlines
Sun 3/17:25 am
OKA
- STL
2 stops21h 18m
Japan Airlines
Deal found 2/3![Japan Airlines logo]()
$1,257
Last-minute flights from St. Louis to JapanDiscover last-minute flight deals from St. Louis to Japan. Data last updated February 3, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Japan. Data last updated February 3, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/36:40 pm
STL
- NRT
2 stops30h 50m
Air Canada
Tue 2/106:45 pm
NRT
- STL
2 stops31h 17m
Air Canada
Deal found 2/2![Air Canada logo]()
$747
This Air Canada deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/74:49 pm
STL
- NRT
2 stops32h 41m
Air Canada
Wed 2/116:15 pm
NRT
- STL
2 stops41h 50m
Air Canada
Deal found 2/1![Air Canada logo]()
$749
This Air Canada deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/96:40 pm
STL
- NRT
2 stops30h 50m
Air Canada
Fri 2/276:45 pm
NRT
- STL
1 stop35h 44m
Air Canada
Deal found 2/1![Air Canada logo]()
$765
This Kiwi.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/212:51 pm
STL
- NRT
2 stops32h 34m
Multiple Airlines
Thu 3/52:30 pm
NRT
- STL
1 stop31h 32m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$738
This Kiwi.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/212:51 pm
STL
- NRT
2 stops32h 34m
Multiple Airlines
Tue 3/102:30 pm
NRT
- STL
1 stop22h 49m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$752
This FlightHub deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/228:17 am
STL
- HND
1 stop18h 28m
ANA
Tue 3/36:20 pm
HND
- STL
1 stop15h 54m
ANA
Deal found 2/1![ANA logo]()
$759
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/236:55 pm
STL
- KIX
2 stops30h 45m
United Airlines
Tue 3/106:35 pm
KIX
- STL
1 stop17h 50m
United Airlines
Deal found 2/2![United Airlines logo]()
$755
This FlightHub deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/238:17 am
STL
- HND
1 stop18h 28m
ANA
Thu 3/56:20 pm
HND
- STL
1 stop31h 16m
ANA
Deal found 2/1![ANA logo]()
$765
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/237:41 am
STL
- HND
1 stop19h 04m
United Airlines
Wed 3/46:20 pm
HND
- STL
1 stop18h 20m
United Airlines
Deal found 1/31![United Airlines logo]()
$766
This KAYAK deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/37:41 am
STL
- HND
1 stop19h 04m
ANA
Tue 3/106:20 pm
HND
- STL
1 stop16h 47m
ANA
Deal found 2/1![ANA logo]()
$734
This American Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/35:12 am
STL
- NRT
1 stop19h 18m
American Airlines
Tue 3/105:30 pm
NRT
- STL
1 stop15h 59m
American Airlines
Deal found 2/1![American Airlines logo]()
$740
This KAYAK deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/77:00 pm
STL
- HND
1 stop31h 45m
ANA
Wed 3/186:25 pm
HND
- STL
1 stop19h 26m
ANA
Deal found 2/1![ANA logo]()
$740
One-way flights from St. Louis to JapanSearch for one-way flight options from St. Louis to Japan. Find affordable one-way fares based on user searches. Data last updated February 3, 2026.
Search for one-way flight options from St. Louis to Japan. Find affordable one-way fares based on user searches. Data last updated February 3, 2026.
This Air Canada deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/164:05 pm
STL
- NRT
2 stops33h 15m
Air Canada
Deal found 2/2![Air Canada logo]()
$349
This Air Canada deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/106:40 pm
STL
- NRT
2 stops30h 50m
Air Canada
Deal found 2/2![Air Canada logo]()
$351
This Air Canada deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/144:05 pm
STL
- NRT
2 stops33h 25m
Air Canada
Deal found 2/3![Air Canada logo]()
$353
This Air Canada deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/164:05 pm
STL
- HND
1 stop33h 35m
Air Canada
Deal found 2/3![Air Canada logo]()
$374
This KAYAK deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/36:25 am
STL
- HND
1 stop23h 40m
ANA
Deal found 2/2![ANA logo]()
$405
This KAYAK deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/36:00 am
STL
- NRT
1 stop18h 30m
ANA
Deal found 2/2![ANA logo]()
$405
This American Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/37:00 am
STL
- NRT
1 stop17h 30m
American Airlines
Deal found 2/1![American Airlines logo]()
$410
This Kiwi.com deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/188:17 pm
STL
- NRT
3 stops51h 08m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$415
This FlightHub deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/184:05 pm
STL
- NRT
1 stop33h 25m
Air Canada
Deal found 2/1![Air Canada logo]()
$429
This United Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/34:30 pm
STL
- HND
2 stops35h 45m
United Airlines
Deal found 2/1![United Airlines logo]()
$431
This Air Canada deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/154:05 pm
STL
- NRT
1 stop33h 45m
Air Canada
Deal found 2/1![Air Canada logo]()
$432
This KAYAK deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/188:41 am
STL
- HND
2 stops19h 34m
ANA
Deal found 2/1![ANA logo]()
$435
Find flight deals from St. Louis to Japan
Keep the following information in mind while searching for St. Louis to Japan flight deals. Data was last updated February 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $734 (KAYAK) |
One-way from | $349 (Air Canada) |
Popular in | June |
Cheapest in | September |
Average price | $794 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Japan that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 3, 2026.
Use the filters below to find and compare flights from St. Louis to Japan that are best for you.
Fly from
St. Louis
Fly to
Japan
Route
Depart
Return
Price
St. LouisOsaka
STL - KIX
STLKIX
Lambert-St Louis
Mon 2/23
5:25 pm-4:40 pm
1 stop32h 15m
Osaka Kansai Intl
Tue 3/10
6:35 pm-10:25 pm
1 stop17h 50m
$755
St. LouisTokyo
STL - NRT
STLNRT
Lambert-St Louis
Sun 2/22
8:41 am-3:40 pm
1 stop15h 59m
Tokyo Narita
Fri 3/6
4:45 pm-10:25 pm
1 stop20h 40m
$767
St. LouisTokyo
STL - NRT
STLNRT
Lambert-St Louis
Mon 2/23
7:41 am-3:00 pm
1 stop16h 19m
Tokyo Narita
Fri 3/6
4:45 pm-10:25 pm
1 stop20h 40m
$767
St. LouisTokyo
STL - NRT
STLNRT
Lambert-St Louis
Mon 2/23
8:17 am-3:00 pm
1 stop15h 43m
Tokyo Narita
Tue 3/10
5:45 pm-10:16 pm
1 stop18h 31m
$767
St. LouisTokyo
STL - NRT
STLNRT
Lambert-St Louis
Sun 2/22
8:41 am-3:40 pm
1 stop15h 59m
Tokyo Narita
Thu 3/5
5:45 pm-10:16 pm
1 stop19h 31m
$767
St. LouisOsaka
STL - ITM
STLITM
Lambert-St Louis
Mon 2/23
7:00 am-7:55 pm
2 stops21h 55m
Osaka Itami
Tue 3/10
4:30 pm-11:58 pm
2 stops21h 28m
$770
St. LouisTokyo
STL - HND
STLHND
Lambert-St Louis
Mon 2/23
7:41 am-5:45 pm
1 stop19h 04m
Tokyo Haneda
Fri 3/6
4:25 pm-8:41 pm
2 stops19h 16m
$771
St. LouisTokyo
STL - HND
STLHND
Lambert-St Louis
Sat 2/21
5:29 pm-4:50 am
1 stop20h 21m
Tokyo Haneda
Tue 3/10
7:40 pm-11:34 pm
2 stops17h 54m
$771
St. LouisTokyo
STL - HND
STLHND
Lambert-St Louis
Tue 2/24
8:30 am-4:50 pm
1 stop17h 20m
Tokyo Haneda
Tue 3/10
7:40 pm-11:34 pm
2 stops17h 54m
$771
St. LouisTokyo
STL - HND
STLHND
Lambert-St Louis
Sun 2/22
7:41 am-5:45 pm
1 stop19h 04m
Tokyo Haneda
Fri 3/6
4:25 pm-8:41 pm
2 stops19h 16m
$771
Showing 1-10 of 54 results
Best time to book a flight from St. Louis to Japan
Have a flexible travel schedule? Discover the best time to fly to Japan from St. Louis with our price prediction graph.
STL-HND
STL-NRT
STL-KIX
STL-ITM
STL-OKA
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to Japan
STL-JP0
STL-HND
STL-NRT
STL-KIX
STL-ITM
What is the cheapest month to book a flight from St. Louis to Japan?
Currently, September is the cheapest month in which you can book a flight from St. Louis to Japan (average of $580). Flying from St. Louis to Japan in July is currently the most expensive (average of $925). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Japan
Get insights into the airlines that provide service to Japan. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Japan. Reviews last updated February 3, 2026.
Read through reviews of airlines operating flights from St. Louis to Japan, such as ANA, Japan Airlines, and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.4
Entertainment
7.9
Food
7.8
Crew
8.7
Comfort
8.2
Boarding
8.6
Reviews
1 / 20
10.0
ExcellentLindsey,Jan 2026
CGK - HND
Overall
8.4
Entertainment
7.9
Food
7.8
Crew
8.7
Comfort
8.2
Boarding
8.6
Reviews
1 / 20
10.0
ExcellentLindsey,Jan 2026
CGK - HND
Overall
8.4
Entertainment
7.9
Food
7.8
Crew
8.7
Comfort
8.2
Boarding
8.6
Reviews
1 / 20
10.0
ExcellentLindsey,Jan 2026
CGK - HND
Overall
8.4
Entertainment
7.9
Food
7.8
Crew
8.7
Comfort
8.2
Boarding
8.6
Reviews
1 / 20
10.0
ExcellentLindsey,Jan 2026
CGK - HND
Overall
8.4
Entertainment
7.9
Food
7.8
Crew
8.7
Comfort
8.2
Boarding
8.6
Reviews
1 / 20
10.0
ExcellentLindsey,Jan 2026
CGK - HND
Overall
8.4
Entertainment
7.9
Food
7.8
Crew
8.7
Comfort
8.2
Boarding
8.6
Reviews
1 / 20
10.0
ExcellentLindsey,Jan 2026
CGK - HND
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Japan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for St. Louis to Japan
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Complete your trip
Complete your trip to Japan by adding a car rental and/or hotel reservation to your travel itinerary.
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St. Louis and Japan flights
Browse other St. Louis and Japan flight options. Last updated on February 3, 2026.
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Fly to Japan regions
Consider these flights traveling to Japan regions.
Top 6 airlines flying from St. Louis to Japan
Discover the top 6 airlines that operate flights from St. Louis to Japan. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$593 | Average$1,012 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$629 | Average$867 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$691 | Average$1,004 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$703 | Average$1,049 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$727 | Average$956 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$738 | Average$1,140 | FlexibilityNo cancel fee | On-time69% |