$396+ 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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FUK
Apr 5 — Apr 121
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
Cheapest
Best
Last-minute
One-way
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 March 6, 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 March 6, 2026.
This Air Canada deal was found by Cheapflights users on 3/2. 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 9/1512:10 pm
STL
- KIX
2 stops38h 15m
Air Canada
Tue 9/226:00 pm
KIX
- STL
2 stops38h 41m
Air Canada
Deal found 3/2![Air Canada logo]()
$811
This Air Canada deal was found by Cheapflights users on 3/2. 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 9/112:10 pm
STL
- NRT
1 stop37h 15m
Air Canada
Tue 9/155:25 pm
NRT
- STL
1 stop34h 35m
Air Canada
Deal found 3/2![Air Canada logo]()
$811
This Air Canada deal was found by Cheapflights users on 3/3. 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 9/2812:10 pm
STL
- NRT
1 stop37h 30m
Air Canada
Tue 10/135:25 pm
NRT
- STL
1 stop34h 35m
Air Canada
Deal found 3/3![Air Canada logo]()
$813
This Air Canada deal was found by Cheapflights users on 3/1. 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.
Tue 9/222:40 pm
STL
- NRT
2 stops34h 15m
Air Canada
Wed 10/75:25 pm
NRT
- STL
1 stop16h 35m
Air Canada
Deal found 3/1![Air Canada logo]()
$818
This BusinessClass deal was found by Cheapflights users on 3/1. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/812:10 pm
STL
- NRT
1 stop37h 30m
ANA
Wed 9/235:25 pm
NRT
- STL
1 stop16h 35m
ANA
Deal found 3/1![ANA logo]()
$823
This BusinessClass deal was found by Cheapflights users on 3/1. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:10 pm
STL
- NRT
1 stop37h 30m
ANA
Wed 9/235:25 pm
NRT
- STL
1 stop16h 35m
ANA
Deal found 3/1![ANA logo]()
$824
This BusinessClass deal was found by Cheapflights users on 3/4. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/264:05 pm
STL
- NRT
1 stop33h 45m
ANA
Wed 5/65:35 pm
NRT
- STL
1 stop16h 50m
ANA
Deal found 3/4![ANA logo]()
$825
This Air Canada deal was found by Cheapflights users on 3/1. 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.
Tue 9/86:00 am
STL
- NRT
2 stops19h 40m
Air Canada
Tue 9/225:25 pm
NRT
- STL
1 stop34h 35m
Air Canada
Deal found 3/1![Air Canada logo]()
$826
This Air Canada deal was found by Cheapflights users on 3/3. 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 10/1912:10 pm
STL
- NRT
1 stop37h 30m
Air Canada
Fri 10/306:45 pm
NRT
- STL
1 stop34h 45m
Air Canada
Deal found 3/3![Air Canada logo]()
$827
This BusinessClass deal was found by Cheapflights users on 3/1. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/78:55 am
STL
- NRT
1 stop16h 55m
ANA
Tue 9/225:25 pm
NRT
- STL
1 stop16h 35m
ANA
Deal found 3/1![ANA logo]()
$828
This BusinessClass deal was found by Cheapflights users on 3/1. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:55 am
STL
- NRT
1 stop16h 55m
ANA
Tue 10/65:25 pm
NRT
- STL
1 stop16h 35m
ANA
Deal found 3/1![ANA logo]()
$830
This Air Canada deal was found by Cheapflights users on 3/2. 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.
Sun 8/3012:10 pm
STL
- KIX
2 stops38h 15m
Air Canada
Thu 9/36:00 pm
KIX
- STL
2 stops38h 27m
Air Canada
Deal found 3/2![Air Canada logo]()
$886
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 March 6, 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 March 6, 2026.
This United Airlines deal was found by Cheapflights users on 3/1. 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.
Mon 4/208:15 pm
STL
- NRT
2 stops28h 45m
United Airlines
Fri 5/15:05 pm
NRT
- STL
1 stop26h 42m
United Airlines
Deal found 3/1![United Airlines logo]()
$956
This Air Canada deal was found by Cheapflights users on 3/2. 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.
Sun 4/194:05 pm
STL
- KIX
2 stops34h 20m
Air Canada
Sat 5/26:00 pm
KIX
- STL
2 stops32h 06m
Air Canada
Deal found 3/2![Air Canada logo]()
$957
This Air Canada deal was found by Cheapflights users on 3/5. 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 4/204:05 pm
STL
- KIX
2 stops38h 55m
Multiple Airlines
Mon 4/276:00 pm
KIX
- STL
2 stops35h 25m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$968
This oojo deal was found by Cheapflights users on 3/2. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/198:54 am
STL
- ITM
2 stops21h 36m
Japan Airlines
Sat 5/26:25 pm
ITM
- STL
2 stops55h 22m
Japan Airlines
Deal found 3/2![Japan Airlines logo]()
$1,097
This BusinessClass deal was found by Cheapflights users on 3/1. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/194:05 pm
STL
- ITM
2 stops36h 05m
ANA
Sat 5/23:00 pm
ITM
- STL
2 stops19h 04m
ANA
Deal found 3/1![ANA logo]()
$1,110
This Delta deal was found by Cheapflights users on 3/4. 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.
Sun 4/197:25 am
STL
- HND
2 stops18h 50m
Delta
Tue 5/54:05 pm
HND
- STL
1 stop21h 08m
Delta
Deal found 3/4![Delta logo]()
$1,137
This American Airlines deal was found by Cheapflights users on 3/5. 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 4/206:21 am
STL
- KIX
1 stop22h 24m
American Airlines
Mon 4/275:45 pm
KIX
- STL
1 stop20h 12m
American Airlines
Deal found 3/5![American Airlines logo]()
$1,314
This Priceline deal was found by Cheapflights users on 3/4. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/186:11 pm
STL
- KIX
3 stops30h 39m
Cathay Pacific
Sat 4/257:25 pm
KIX
- STL
2 stops41h 34m
Cathay Pacific
Deal found 3/4![Cathay Pacific logo]()
$1,389
This oojo deal was found by Cheapflights users on 3/1. 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.
Fri 3/277:00 am
STL
- FUK
2 stops45h 20m
EVA Air
Fri 4/312:20 pm
FUK
- STL
2 stops49h 39m
EVA Air
Deal found 3/1![EVA Air logo]()
$1,768
This United Airlines deal was found by Cheapflights users on 3/1. 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.
Mon 4/208:15 pm
STL
- HND
2 stops28h 50m
United Airlines
Sat 5/29:15 pm
HND
- STL
2 stops25h 24m
United Airlines
Deal found 3/1![United Airlines logo]()
$994
This Air Canada deal was found by Cheapflights users on 3/1. 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
- FUK
2 stops49h 55m
Multiple Airlines
Wed 4/2212:00 pm
FUK
- STL
2 stops41h 25m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$1,055
This United Airlines deal was found by Cheapflights users on 3/4. 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 4/254:49 pm
STL
- NRT
2 stops31h 56m
United Airlines
Fri 5/85:00 pm
NRT
- STL
1 stop18h 13m
United Airlines
Deal found 3/4![United Airlines logo]()
$995
This Qatar Airways deal was found by Cheapflights users on 3/2. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1611:06 am
STL
- OKA
3 stops56h 04m
Qatar Airways
Thu 4/233:50 pm
OKA
- STL
3 stops41h 40m
Qatar Airways
Deal found 3/2![Qatar Airways logo]()
$2,246
This Gurufare deal was found by Cheapflights users on 3/2. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:05 am
STL
- KIX
2 stops23h 55m
Japan Airlines
Sat 5/25:45 pm
KIX
- STL
1 stop20h 12m
Japan Airlines
Deal found 3/2![Japan Airlines logo]()
$1,129
This Delta deal was found by Cheapflights users on 3/4. 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.
Sun 4/196:50 pm
STL
- HND
2 stops28h 15m
Delta
Sun 5/104:20 pm
HND
- STL
2 stops21h 39m
Delta
Deal found 3/4![Delta logo]()
$1,187
This SmartFares deal was found by Cheapflights users on 3/2. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/167:00 am
STL
- OKA
2 stops45h 55m
Multiple Airlines
Thu 4/2310:15 am
OKA
- STL
2 stops51h 44m
Multiple Airlines
Deal found 3/2![Multiple Airlines logo]()
$1,164
This United Airlines deal was found by Cheapflights users on 3/2. 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.
Wed 4/226:30 am
STL
- OKA
2 stops26h 25m
United Airlines
Wed 4/2912:50 pm
OKA
- STL
2 stops22h 23m
United Airlines
Deal found 3/2![United Airlines logo]()
$1,069
This Japan Airlines deal was found by Cheapflights users on 3/2. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/87:05 am
STL
- NRT
1 stop16h 20m
Japan Airlines
Mon 4/209:45 am
NRT
- STL
1 stop16h 02m
Japan Airlines
Deal found 3/2![Japan Airlines logo]()
$1,208
This Delta deal was found by Cheapflights users on 3/4. 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.
Sat 4/185:59 pm
STL
- HND
2 stops29h 06m
Delta
Sun 5/34:20 pm
HND
- STL
2 stops22h 05m
Delta
Deal found 3/4![Delta logo]()
$1,251
This American Airlines deal was found by Cheapflights users on 3/4. 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.
Sat 4/188:00 am
STL
- ITM
2 stops21h 50m
American Airlines
Sat 4/257:25 am
ITM
- STL
2 stops21h 40m
American Airlines
Deal found 3/4![American Airlines logo]()
$1,390
This Alaska Airlines deal was found by Cheapflights users on 3/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/177:00 am
STL
- NRT
1 stop19h 00m
Multiple Airlines
Sat 5/26:00 pm
NRT
- STL
1 stop19h 59m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$1,183
This United Airlines deal was found by Cheapflights users on 3/4. 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 4/147:45 am
STL
- HND
1 stop17h 40m
United Airlines
Mon 4/2712:30 am
HND
- STL
2 stops21h 55m
United Airlines
Deal found 3/4![United Airlines logo]()
$1,136
This flugladen.de deal was found by Cheapflights users on 3/5. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/207:00 am
STL
- OKA
2 stops45h 55m
Multiple Airlines
Mon 4/2710:15 am
OKA
- STL
2 stops43h 35m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$1,197
This oojo deal was found by Cheapflights users on 3/2. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/117:12 am
STL
- ITM
2 stops22h 38m
Japan Airlines
Wed 5/272:35 pm
ITM
- STL
2 stops36h 04m
Japan Airlines
Deal found 3/2![Japan Airlines logo]()
$1,360
This Gurufare deal was found by Cheapflights users on 3/4. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:00 am
STL
- OKA
2 stops22h 45m
ANA
Wed 7/111:55 am
OKA
- STL
2 stops25h 50m
ANA
Deal found 3/4![ANA logo]()
$1,672
This United Airlines deal was found by Cheapflights users on 3/1. 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.
Fri 4/179:10 am
STL
- HND
1 stop22h 05m
United Airlines
Fri 5/15:15 pm
HND
- STL
1 stop15h 38m
United Airlines
Deal found 3/1![United Airlines logo]()
$1,196
This flugladen.de deal was found by Cheapflights users on 3/3. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/178:06 pm
STL
- OKA
3 stops47h 09m
Multiple Airlines
Fri 4/2410:15 am
OKA
- STL
3 stops43h 06m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$1,284
This KAYAK deal was found by Cheapflights users on 3/5. 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.
Fri 3/2710:33 am
STL
- FUK
2 stops36h 12m
Cathay Pacific
Fri 4/34:40 pm
FUK
- STL
2 stops44h 18m
Cathay Pacific
Deal found 3/5![Cathay Pacific logo]()
$1,900
This United Airlines deal was found by Cheapflights users on 3/2. 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.
Wed 4/88:54 am
STL
- HND
2 stops20h 06m
United Airlines
Mon 4/209:05 pm
HND
- STL
2 stops25h 20m
United Airlines
Deal found 3/2![United Airlines logo]()
$1,203
This United Airlines deal was found by Cheapflights users on 3/1. 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.
Wed 4/158:21 am
STL
- ITM
2 stops42h 44m
United Airlines
Wed 4/2212:55 pm
ITM
- STL
2 stops24h 16m
United Airlines
Deal found 3/1![United Airlines logo]()
$1,220
Last-minute flights from St. Louis to JapanDiscover last-minute flight deals from St. Louis to Japan. Data last updated March 6, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Japan. Data last updated March 6, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 3/1. 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.
Sun 4/194:05 pm
STL
- NRT
1 stop33h 45m
Air Canada
Thu 4/305:25 pm
NRT
- STL
1 stop32h 41m
Air Canada
Deal found 3/1![Air Canada logo]()
$818
This Gotogate deal was found by Cheapflights users on 3/2. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/194:05 pm
STL
- NRT
2 stops56h 50m
Air Canada
Tue 5/55:35 pm
NRT
- STL
1 stop16h 50m
Air Canada
Deal found 3/2![Air Canada logo]()
$858
This BusinessClass deal was found by Cheapflights users on 3/1. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/204:05 pm
STL
- NRT
1 stop33h 45m
ANA
Thu 4/305:25 pm
NRT
- STL
1 stop32h 41m
ANA
Deal found 3/1![ANA logo]()
$830
This United Airlines deal was found by Cheapflights users on 3/1. 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.
Mon 4/207:45 am
STL
- HND
1 stop23h 30m
United Airlines
Thu 4/309:15 pm
HND
- STL
2 stops25h 24m
United Airlines
Deal found 3/1![United Airlines logo]()
$944
This Air Canada deal was found by Cheapflights users on 3/4. 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 4/214:05 pm
STL
- NRT
1 stop33h 45m
Air Canada
Tue 5/55:35 pm
NRT
- STL
1 stop16h 50m
Air Canada
Deal found 3/4![Air Canada logo]()
$855
This Delta deal was found by Cheapflights users on 3/2. 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.
Sat 4/253:25 pm
STL
- HND
1 stop31h 40m
Delta
Fri 5/86:25 pm
HND
- STL
1 stop16h 44m
Delta
Deal found 3/2![Delta logo]()
$946
This BusinessClass deal was found by Cheapflights users on 3/4. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/264:05 pm
STL
- NRT
1 stop33h 45m
ANA
Thu 5/75:35 pm
NRT
- STL
1 stop16h 50m
ANA
Deal found 3/4![ANA logo]()
$825
This Air Canada deal was found by Cheapflights users on 3/4. 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 4/274:05 pm
STL
- NRT
1 stop33h 45m
Air Canada
Tue 5/55:35 pm
NRT
- STL
1 stop16h 50m
Air Canada
Deal found 3/4![Air Canada logo]()
$813
This KAYAK deal was found by Cheapflights users on 3/4. 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 4/284:05 pm
STL
- NRT
2 stops32h 50m
ANA
Wed 5/65:35 pm
NRT
- STL
1 stop16h 50m
ANA
Deal found 3/4![ANA logo]()
$853
This CheapOair deal was found by Cheapflights users on 3/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:45 am
STL
- HND
1 stop23h 30m
Multiple Airlines
Wed 5/136:05 pm
HND
- STL
2 stops40h 20m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$939
This Gotogate deal was found by Cheapflights users on 3/2. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/289:10 am
STL
- HND
1 stop22h 05m
Multiple Airlines
Fri 5/86:05 pm
HND
- STL
2 stops40h 20m
Multiple Airlines
Deal found 3/2![Multiple Airlines logo]()
$942
This Orbitz deal was found by Cheapflights users on 3/4. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/299:10 am
STL
- HND
1 stop16h 15m
Multiple Airlines
Fri 5/86:05 pm
HND
- STL
1 stop32h 01m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$935
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 March 6, 2026.
Search for one-way flight options from St. Louis to Japan. Find affordable one-way fares based on user searches. Data last updated March 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/98:12 pm
STL
- NRT
2 stops33h 48m
Multiple Airlines
Deal found 3/2![Multiple Airlines logo]()
$396
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/88:12 pm
STL
- NRT
2 stops52h 38m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$398
This Kiwi.com deal was found by Cheapflights users on 3/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/43:21 pm
STL
- NRT
2 stops33h 29m
Multiple Airlines
Deal found 3/2![Multiple Airlines logo]()
$414
This Kiwi.com deal was found by Cheapflights users on 3/4. 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 4/184:16 pm
STL
- OKA
3 stops36h 44m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$426
This Kiwi.com deal was found by Cheapflights users on 3/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/98:12 pm
STL
- HND
3 stops51h 23m
Multiple Airlines
Deal found 3/2![Multiple Airlines logo]()
$429
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/98:12 pm
STL
- KIX
3 stops47h 03m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$431
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/88:12 pm
STL
- KIX
3 stops58h 48m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$436
This Kiwi.com deal was found by Cheapflights users on 3/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/98:12 pm
STL
- OKA
3 stops49h 13m
Multiple Airlines
Deal found 3/2![Multiple Airlines logo]()
$449
This Air Canada deal was found by Cheapflights users on 3/1. 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 3/1![Air Canada logo]()
$454
This Kiwi.com deal was found by Cheapflights users on 3/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/264:44 pm
STL
- NRT
3 stops57h 46m
Multiple Airlines
Deal found 3/2![Multiple Airlines logo]()
$457
This Air Canada deal was found by Cheapflights users on 3/2. 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 4/74:05 pm
STL
- NRT
2 stops33h 20m
Air Canada
Deal found 3/2![Air Canada logo]()
$458
This Kiwi.com deal was found by Cheapflights users on 3/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/43:21 pm
STL
- KIX
3 stops51h 54m
Multiple Airlines
Deal found 3/2![Multiple Airlines logo]()
$460
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 March 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $811 (Air Canada) |
One-way from | $396 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $947 |
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 March 6, 2026.
Use the filters below to find and compare flights from St. Louis to Japan that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisTokyo
STL - NRT
STLNRT
Lambert-St Louis
Mon 4/20
8:15 pm-3:00 pm
2 stops28h 45m
Tokyo Narita
Fri 5/1
5:05 pm-5:47 am
1 stop26h 42m
$956
St. LouisOsaka
STL - KIX
STLKIX
Lambert-St Louis
Sun 4/19
4:05 pm-4:25 pm
2 stops34h 20m
Osaka Kansai Intl
Sat 5/2
6:00 pm-12:06 pm
2 stops32h 06m
$957
St. LouisOsaka
STL - KIX
STLKIX
Lambert-St Louis
Mon 4/20
4:05 pm-9:00 pm
2 stops38h 55m
Osaka Kansai Intl
Mon 4/27
6:00 pm-3:25 pm
2 stops35h 25m
$968
St. LouisTokyo
STL - HND
STLHND
Lambert-St Louis
Mon 4/20
8:15 pm-3:05 pm
2 stops28h 50m
Tokyo Haneda
Sat 5/2
9:15 pm-8:39 am
2 stops25h 24m
$994
St. LouisTokyo
STL - NRT
STLNRT
Lambert-St Louis
Sat 4/25
4:49 pm-2:45 pm
2 stops31h 56m
Tokyo Narita
Fri 5/8
5:00 pm-9:13 pm
1 stop18h 13m
$995
St. LouisFukuoka
STL - FUK
STLFUK
Lambert-St Louis
Wed 4/15
4:05 pm-8:00 am
2 stops49h 55m
Fukuoka
Wed 4/22
12:00 pm-3:25 pm
2 stops41h 25m
$1,055
St. LouisOkinawa
STL - OKA
STLOKA
Lambert-St Louis
Wed 4/22
6:30 am-10:55 pm
2 stops26h 25m
Okinawa Naha
Wed 4/29
12:50 pm-9:13 pm
2 stops22h 23m
$1,069
St. LouisOsaka
STL - ITM
STLITM
Lambert-St Louis
Sun 4/19
8:54 am-8:30 pm
2 stops21h 36m
Osaka Itami
Sat 5/2
6:25 pm-11:47 am
2 stops55h 22m
$1,097
St. LouisOsaka
STL - ITM
STLITM
Lambert-St Louis
Sun 4/19
4:05 pm-6:10 pm
2 stops36h 05m
Osaka Itami
Sat 5/2
3:00 pm-8:04 pm
2 stops19h 04m
$1,110
St. LouisOsaka
STL - KIX
STLKIX
Lambert-St Louis
Sun 4/19
7:05 am-9:00 pm
2 stops23h 55m
Osaka Kansai Intl
Sat 5/2
5:45 pm-11:57 pm
1 stop20h 12m
$1,129
Showing 1-10 of 60 resultsSorted by cheapest first
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-NRT
STL-HND
STL-OKA
STL-KIX
STL-ITM
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-NRT
STL-HND
STL-OKA
STL-KIX
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 $593). 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 March 6, 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.
Entertainment
8.0
Crew
8.7
Comfort
8.2
Overall
8.4
Boarding
8.5
Food
7.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Entertainment
8.0
Crew
8.7
Comfort
8.2
Overall
8.4
Boarding
8.5
Food
7.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Entertainment
8.0
Crew
8.7
Comfort
8.2
Overall
8.4
Boarding
8.5
Food
7.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Entertainment
8.0
Crew
8.7
Comfort
8.2
Overall
8.4
Boarding
8.5
Food
7.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Entertainment
8.0
Crew
8.7
Comfort
8.2
Overall
8.4
Boarding
8.5
Food
7.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Entertainment
8.0
Crew
8.7
Comfort
8.2
Overall
8.4
Boarding
8.5
Food
7.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
Top regions
Alternative routes for St. Louis to Japan
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Japan by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Japan by cabin class
Find flights from St. Louis to Japan, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Japan flights
Browse other St. Louis and Japan flight options. Last updated on March 6, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
St. Louis to Japan flights
Consider these flights traveling from St. Louis to Japan.
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 March 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$593 | Average$1,060 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$629 | Average$894 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$703 | Average$1,125 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$709 | Average$1,083 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$733 | Average$950 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$738 | Average$1,143 | FlexibilityNo cancel fee | On-time69% |