$406+ 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 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FUK
Apr 27 — May 41
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Japan with Cheapflights
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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 March 28, 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 28, 2026.
This Air Canada deal was found by Cheapflights users on 3/25. 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 3/25![Air Canada logo]()
$879
This Air Canada deal was found by Cheapflights users on 3/24. 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
2 stops32h 50m
Air Canada
Tue 5/55:35 pm
NRT
- STL
1 stop16h 50m
Air Canada
Deal found 3/24![Air Canada logo]()
$939
This Air Canada deal was found by Cheapflights users on 3/23. 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 10/135:40 pm
NRT
- STL
2 stops34h 20m
Air Canada
Deal found 3/23![Air Canada logo]()
$943
This Air Canada deal was found by Cheapflights users on 3/23. 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 4/156:30 am
STL
- NRT
2 stops18h 25m
Air Canada
Tue 5/55:35 pm
NRT
- STL
1 stop16h 50m
Air Canada
Deal found 3/23![Air Canada logo]()
$946
This Justfly.com deal was found by Cheapflights users on 3/24. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2712:10 pm
STL
- NRT
1 stop37h 30m
Air Canada
Wed 10/75:40 pm
NRT
- STL
2 stops34h 20m
Air Canada
Deal found 3/24![Air Canada logo]()
$953
This Air Canada deal was found by Cheapflights users on 3/25. 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.
Thu 8/2712:10 pm
STL
- NRT
1 stop37h 15m
Air Canada
Sun 9/135:40 pm
NRT
- STL
2 stops34h 20m
Air Canada
Deal found 3/25![Air Canada logo]()
$957
This Air Canada deal was found by Cheapflights users on 3/24. 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 9/228:55 am
STL
- NRT
1 stop16h 55m
Air Canada
Wed 10/75:40 pm
NRT
- STL
2 stops34h 20m
Air Canada
Deal found 3/24![Air Canada logo]()
$960
This Expedia deal was found by Cheapflights users on 3/27. 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.
Mon 9/146:00 am
STL
- NRT
2 stops19h 40m
Air Canada
Mon 9/285:40 pm
NRT
- STL
2 stops34h 20m
Air Canada
Deal found 3/27![Air Canada logo]()
$967
This Justfly.com deal was found by Cheapflights users on 3/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/254:05 pm
STL
- NRT
2 stops33h 20m
Air Canada
Fri 5/84:30 pm
NRT
- STL
2 stops33h 36m
Air Canada
Deal found 3/27![Air Canada logo]()
$968
This Justfly.com deal was found by Cheapflights users on 3/25. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/228:55 am
STL
- HND
2 stops35h 40m
Multiple Airlines
Wed 10/71:40 pm
HND
- STL
2 stops20h 20m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$970
This FlightHub deal was found by Cheapflights users on 3/25. 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.
Tue 9/228:55 am
STL
- HND
2 stops35h 40m
Air Canada
Wed 10/76:05 pm
HND
- STL
2 stops32h 15m
Air Canada
Deal found 3/25![Air Canada logo]()
$982
This Justfly.com deal was found by Cheapflights users on 3/26. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/12:40 pm
STL
- KIX
2 stops35h 45m
Air Canada
Thu 10/86:00 pm
KIX
- STL
2 stops34h 00m
Air Canada
Deal found 3/26![Air Canada logo]()
$1,004
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 28, 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 28, 2026.
This Air Canada deal was found by Cheapflights users on 3/24. 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 9/158:55 am
STL
- KIX
1 stop17h 30m
Air Canada
Tue 9/226:00 pm
KIX
- STL
2 stops38h 41m
Air Canada
Deal found 3/24![Air Canada logo]()
$942
This BusinessClass deal was found by Cheapflights users on 3/24. 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 9/157:44 am
STL
- ITM
2 stops22h 06m
Japan Airlines
Tue 9/222:35 pm
ITM
- STL
2 stops18h 02m
Japan Airlines
Deal found 3/24![Japan Airlines logo]()
$1,108
This FlightHub deal was found by Cheapflights users on 3/27. 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.
Sat 9/57:32 pm
STL
- OKA
2 stops33h 23m
Multiple Airlines
Wed 9/1610:15 am
OKA
- STL
2 stops42h 11m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$1,164
This United Airlines deal was found by Cheapflights users on 3/27. 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 8/305:10 am
STL
- HND
2 stops23h 50m
United Airlines
Thu 9/33:50 pm
HND
- STL
2 stops22h 00m
United Airlines
Deal found 3/27![United Airlines logo]()
$1,189
This American Airlines deal was found by Cheapflights users on 3/24. 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.
Wed 7/227:06 am
STL
- FUK
2 stops23h 29m
American Airlines
Wed 7/297:00 am
FUK
- STL
2 stops19h 44m
American Airlines
Deal found 3/24![American Airlines logo]()
$1,236
This FlightHub deal was found by Cheapflights users on 3/23. 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.
Sat 9/51:18 pm
STL
- ITM
2 stops40h 57m
ANA
Sat 9/198:00 am
ITM
- STL
2 stops20h 08m
ANA
Deal found 3/23![ANA logo]()
$1,237
This oojo deal was found by Cheapflights users on 3/27. 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 9/156:30 am
STL
- KIX
2 stops42h 40m
Cathay Pacific
Tue 9/224:15 pm
KIX
- STL
3 stops43h 45m
Cathay Pacific
Deal found 3/27![Cathay Pacific logo]()
$1,412
This Delta deal was found by Cheapflights users on 3/24. 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.
Tue 4/217:25 am
STL
- HND
2 stops18h 50m
Delta
Tue 4/284:35 pm
HND
- STL
2 stops21h 50m
Delta
Deal found 3/24![Delta logo]()
$1,465
This Qatar Airways deal was found by Cheapflights users on 3/26. 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.
Wed 4/2211:06 am
STL
- NRT
2 stops36h 14m
Qatar Airways
Wed 4/293:25 pm
NRT
- STL
2 stops44h 59m
Qatar Airways
Deal found 3/26![Qatar Airways logo]()
$1,559
This oojo deal was found by Cheapflights users on 3/26. 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 5/104:46 pm
STL
- FUK
2 stops37h 14m
China Airlines
Sun 5/179:00 pm
FUK
- STL
2 stops40h 54m
China Airlines
Deal found 3/26![China Airlines logo]()
$1,593
This Air Canada deal was found by Cheapflights users on 3/23. 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 9/192:40 pm
STL
- KIX
2 stops35h 45m
Air Canada
Wed 9/236:00 pm
KIX
- STL
2 stops36h 26m
Air Canada
Deal found 3/23![Air Canada logo]()
$1,091
This Japan Airlines deal was found by Cheapflights users on 3/23. 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 8/308:35 am
STL
- ITM
2 stops39h 00m
Japan Airlines
Wed 9/22:35 pm
ITM
- STL
2 stops18h 02m
Japan Airlines
Deal found 3/23![Japan Airlines logo]()
$1,108
This United Airlines deal was found by Cheapflights users on 3/26. 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 8/305:10 am
STL
- ITM
3 stops45h 55m
United Airlines
Wed 9/212:50 pm
ITM
- STL
2 stops24h 47m
United Airlines
Deal found 3/26![United Airlines logo]()
$1,194
This Alaska Airlines deal was found by Cheapflights users on 3/25. 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.
Sat 8/227:32 pm
STL
- NRT
1 stop30h 28m
Multiple Airlines
Wed 8/266:00 pm
NRT
- STL
1 stop19h 59m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$1,204
This oojo deal was found by Cheapflights users on 3/27. 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 8/58:35 am
STL
- ITM
2 stops21h 15m
Japan Airlines
Thu 8/134:45 pm
ITM
- STL
2 stops37h 03m
Japan Airlines
Deal found 3/27![Japan Airlines logo]()
$1,143
This Gurufare deal was found by Cheapflights users on 3/25. 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.
Thu 8/61:13 pm
STL
- ITM
2 stops28h 12m
ANA
Fri 8/148:20 pm
ITM
- STL
2 stops30h 29m
ANA
Deal found 3/25![ANA logo]()
$1,285
This United Airlines deal was found by Cheapflights users on 3/25. 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 8/226:55 pm
STL
- NRT
2 stops29h 35m
United Airlines
Wed 8/264:45 pm
NRT
- STL
2 stops18h 37m
United Airlines
Deal found 3/25![United Airlines logo]()
$1,195
This Alaska Airlines deal was found by Cheapflights users on 3/23. 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.
Wed 4/157:00 am
STL
- NRT
1 stop19h 00m
Multiple Airlines
Tue 5/56:00 pm
NRT
- STL
1 stop19h 59m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$1,232
This United Airlines deal was found by Cheapflights users on 3/27. 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 8/257:30 am
STL
- NRT
1 stop17h 40m
United Airlines
Fri 8/284:30 pm
NRT
- STL
2 stops18h 52m
United Airlines
Deal found 3/27![United Airlines logo]()
$1,195
This oojo deal was found by Cheapflights users on 3/24. 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 8/56:30 am
STL
- KIX
1 stop22h 15m
Japan Airlines
Fri 8/146:40 am
KIX
- STL
2 stops23h 08m
Japan Airlines
Deal found 3/24![Japan Airlines logo]()
$1,196
This Delta deal was found by Cheapflights users on 3/26. 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.
Fri 7/317:54 pm
STL
- HND
2 stops28h 26m
Delta
Fri 8/144:20 pm
HND
- STL
2 stops21h 17m
Delta
Deal found 3/26![Delta logo]()
$1,495
This United Airlines deal was found by Cheapflights users on 3/28. 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 8/55:10 am
STL
- KIX
2 stops19h 40m
United Airlines
Fri 8/144:55 pm
KIX
- STL
2 stops31h 14m
United Airlines
Deal found 3/28![United Airlines logo]()
$1,198
This Japan Airlines deal was found by Cheapflights users on 3/24. 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.
Sat 9/197:44 am
STL
- HND
1 stop19h 46m
Japan Airlines
Wed 9/231:00 pm
HND
- STL
1 stop15h 25m
Japan Airlines
Deal found 3/24![Japan Airlines logo]()
$1,247
This Delta deal was found by Cheapflights users on 3/27. 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 4/256:20 am
STL
- HND
2 stops17h 55m
Delta
Sat 5/24:20 pm
HND
- STL
2 stops19h 12m
Delta
Deal found 3/27![Delta logo]()
$1,565
This American Airlines deal was found by Cheapflights users on 3/24. 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.
Wed 7/15:25 am
STL
- FUK
2 stops23h 35m
American Airlines
Wed 7/87:00 am
FUK
- STL
2 stops21h 05m
American Airlines
Deal found 3/24![American Airlines logo]()
$1,746
This Trip.com deal was found by Cheapflights users on 3/25. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/97:00 am
STL
- OKJ
2 stops42h 05m
Multiple Airlines
Sat 5/163:55 pm
OKJ
- STL
2 stops37h 21m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$1,453
This United Airlines deal was found by Cheapflights users on 3/26. 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 8/26:14 am
STL
- NRT
1 stop17h 46m
United Airlines
Sun 8/165:00 pm
NRT
- STL
1 stop18h 22m
United Airlines
Deal found 3/26![United Airlines logo]()
$1,240
This Japan Airlines deal was found by Cheapflights users on 3/27. 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.
Sat 9/196:30 am
STL
- KIX
1 stop22h 15m
Japan Airlines
Wed 9/235:45 pm
KIX
- STL
1 stop19h 17m
Japan Airlines
Deal found 3/27![Japan Airlines logo]()
$1,251
This United Airlines deal was found by Cheapflights users on 3/27. 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 8/296:55 pm
STL
- HND
2 stops19h 30m
United Airlines
Sun 9/66:10 pm
HND
- STL
2 stops19h 40m
United Airlines
Deal found 3/27![United Airlines logo]()
$1,244
This Japan Airlines deal was found by Cheapflights users on 3/23. 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 9/67:23 am
STL
- TAK
2 stops24h 07m
Japan Airlines
Wed 9/97:05 am
TAK
- STL
2 stops21h 20m
Japan Airlines
Deal found 3/23![Japan Airlines logo]()
$1,342
Last-minute flights from St. Louis to JapanDiscover last-minute flight deals from St. Louis to Japan. Data last updated March 28, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Japan. Data last updated March 28, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 3/23. 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 4/156:30 am
STL
- NRT
2 stops18h 25m
Air Canada
Tue 5/55:35 pm
NRT
- STL
1 stop16h 50m
Air Canada
Deal found 3/23![Air Canada logo]()
$946
This Air Canada deal was found by Cheapflights users on 3/25. 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 4/156:30 am
STL
- NRT
2 stops18h 25m
Air Canada
Thu 4/305:40 pm
NRT
- STL
2 stops32h 26m
Air Canada
Deal found 3/25![Air Canada logo]()
$995
This Air Canada deal was found by Cheapflights users on 3/23. 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 4/156:30 am
STL
- HND
2 stops19h 10m
Air Canada
Tue 5/56:05 pm
HND
- STL
1 stop16h 04m
Air Canada
Deal found 3/23![Air Canada logo]()
$1,057
This oojo deal was found by Cheapflights users on 3/24. 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 4/157:05 am
STL
- HND
1 stop20h 25m
Japan Airlines
Tue 5/51:00 pm
HND
- STL
1 stop15h 03m
Japan Airlines
Deal found 3/24![Japan Airlines logo]()
$1,190
This FlightHub deal was found by Cheapflights users on 3/26. 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.
Thu 4/1610:00 am
STL
- NRT
2 stops39h 50m
Air Canada
Tue 5/55:35 pm
NRT
- STL
1 stop16h 50m
Air Canada
Deal found 3/26![Air Canada logo]()
$1,045
This FlightHub deal was found by Cheapflights users on 3/25. 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.
Thu 4/167:45 am
STL
- HND
2 stops41h 55m
Air Canada
Tue 5/56:05 pm
HND
- STL
2 stops41h 08m
Air Canada
Deal found 3/25![Air Canada logo]()
$1,198
This FlightHub deal was found by Cheapflights users on 3/26. 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.
Fri 4/174:05 pm
STL
- NRT
2 stops33h 20m
Air Canada
Tue 5/265:35 pm
NRT
- STL
2 stops32h 31m
Air Canada
Deal found 3/26![Air Canada logo]()
$989
This FlightHub deal was found by Cheapflights users on 3/24. 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.
Tue 4/216:30 am
STL
- KIX
2 stops43h 55m
Air Canada
Tue 4/286:00 pm
KIX
- STL
2 stops52h 39m
Air Canada
Deal found 3/24![Air Canada logo]()
$1,115
This Air Canada deal was found by Cheapflights users on 3/24. 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.
Fri 4/244:05 pm
STL
- NRT
1 stop30h 05m
Air Canada
Tue 5/55:35 pm
NRT
- STL
2 stops40h 34m
Air Canada
Deal found 3/24![Air Canada logo]()
$998
This Justfly.com deal was found by Cheapflights users on 3/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/254:05 pm
STL
- NRT
2 stops33h 20m
Air Canada
Fri 5/84:30 pm
NRT
- STL
2 stops33h 36m
Air Canada
Deal found 3/27![Air Canada logo]()
$968
This Air Canada deal was found by Cheapflights users on 3/24. 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
2 stops32h 50m
Air Canada
Tue 5/55:35 pm
NRT
- STL
1 stop16h 50m
Air Canada
Deal found 3/24![Air Canada logo]()
$939
This Orbitz deal was found by Cheapflights users on 3/25. 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.
Tue 4/284:05 pm
STL
- NRT
2 stops33h 20m
Air Canada
Mon 5/45:25 pm
NRT
- STL
1 stop16h 44m
Air Canada
Deal found 3/25![Air Canada logo]()
$1,002
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 28, 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 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/24. 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 4/258:17 pm
STL
- FUK
3 stops46h 08m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$406
This Air Canada deal was found by Cheapflights users on 3/25. 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 4/156:30 am
STL
- NRT
2 stops18h 25m
Air Canada
Deal found 3/25![Air Canada logo]()
$486
This Kiwi.com deal was found by Cheapflights users on 3/24. 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 4/188:17 pm
STL
- FUK
3 stops46h 48m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$503
This Kiwi.com deal was found by Cheapflights users on 3/24. 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 4/144:59 pm
STL
- NRT
3 stops55h 11m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$505
This Kiwi.com deal was found by Cheapflights users on 3/27. 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.
Thu 9/176:41 am
STL
- NRT
2 stops23h 19m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$508
This Kiwi.com deal was found by Cheapflights users on 3/24. 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.
Sun 4/2611:44 am
STL
- FUK
3 stops55h 21m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$512
This Travelocity deal was found by Cheapflights users on 3/24. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/144:05 pm
STL
- NRT
1 stop33h 45m
Air Canada
Deal found 3/24![Air Canada logo]()
$518
This Kiwi.com deal was found by Cheapflights users on 3/24. 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 5/126:51 pm
STL
- NRT
2 stops53h 59m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$522
This Kiwi.com deal was found by Cheapflights users on 3/24. 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 4/284:59 pm
STL
- FUK
3 stops36h 21m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$525
This FlightHub deal was found by Cheapflights users on 3/26. 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.
Fri 4/104:05 pm
STL
- NRT
2 stops33h 20m
Air Canada
Deal found 3/26![Air Canada logo]()
$538
This Kiwi.com deal was found by Cheapflights users on 3/24. 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.
Sun 4/1911:16 am
STL
- FUK
3 stops55h 49m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$545
This Air Canada deal was found by Cheapflights users on 3/25. 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 4/156:30 am
STL
- HND
2 stops19h 10m
Air Canada
Deal found 3/25![Air Canada logo]()
$545
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 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $879 (Air Canada) |
One-way from | $406 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $936 |
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 28, 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. LouisOsaka
STL - KIX
STLKIX
Lambert-St Louis
Tue 9/15
8:55 am-4:25 pm
1 stop17h 30m
Osaka Kansai Intl
Tue 9/22
6:00 pm-6:41 pm
2 stops38h 41m
$942
St. LouisOsaka
STL - KIX
STLKIX
Lambert-St Louis
Sat 9/19
2:40 pm-4:25 pm
2 stops35h 45m
Osaka Kansai Intl
Wed 9/23
6:00 pm-4:26 pm
2 stops36h 26m
$1,091
St. LouisOsaka
STL - ITM
STLITM
Lambert-St Louis
Tue 9/15
7:44 am-7:50 pm
2 stops22h 06m
Osaka Itami
Tue 9/22
2:35 pm-6:37 pm
2 stops18h 02m
$1,108
St. LouisOsaka
STL - ITM
STLITM
Lambert-St Louis
Sun 8/30
8:35 am-1:35 pm
2 stops39h 00m
Osaka Itami
Wed 9/2
2:35 pm-6:37 pm
2 stops18h 02m
$1,108
St. LouisOsaka
STL - ITM
STLITM
Lambert-St Louis
Wed 8/5
8:35 am-7:50 pm
2 stops21h 15m
Osaka Itami
Thu 8/13
4:45 pm-3:48 pm
2 stops37h 03m
$1,143
St. LouisOkinawa
STL - OKA
STLOKA
Lambert-St Louis
Sat 9/5
7:32 pm-6:55 pm
2 stops33h 23m
Okinawa Naha
Wed 9/16
10:15 am-2:26 pm
2 stops42h 11m
$1,164
St. LouisTokyo
STL - HND
STLHND
Lambert-St Louis
Sun 8/30
5:10 am-7:00 pm
2 stops23h 50m
Tokyo Haneda
Thu 9/3
3:50 pm-11:50 pm
2 stops22h 00m
$1,189
St. LouisOsaka
STL - ITM
STLITM
Lambert-St Louis
Sun 8/30
5:10 am-5:05 pm
3 stops45h 55m
Osaka Itami
Wed 9/2
12:50 pm-11:37 pm
2 stops24h 47m
$1,194
St. LouisTokyo
STL - NRT
STLNRT
Lambert-St Louis
Sat 8/22
6:55 pm-2:30 pm
2 stops29h 35m
Tokyo Narita
Wed 8/26
4:45 pm-9:22 pm
2 stops18h 37m
$1,195
St. LouisTokyo
STL - NRT
STLNRT
Lambert-St Louis
Tue 8/25
7:30 am-3:10 pm
1 stop17h 40m
Tokyo Narita
Fri 8/28
4:30 pm-9:22 pm
2 stops18h 52m
$1,195
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-FUK
STL-NRT
STL-HND
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-FUK
STL-NRT
STL-HND
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 $993). 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 28, 2026.
Read through reviews of airlines operating flights from St. Louis to Japan, such as ANA,Japan Airlines, andDelta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.8
Overall
8.4
Boarding
8.6
Entertainment
8.0
Crew
8.7
Comfort
8.2
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Food
7.8
Overall
8.4
Boarding
8.6
Entertainment
8.0
Crew
8.7
Comfort
8.2
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Food
7.8
Overall
8.4
Boarding
8.6
Entertainment
8.0
Crew
8.7
Comfort
8.2
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Food
7.8
Overall
8.4
Boarding
8.6
Entertainment
8.0
Crew
8.7
Comfort
8.2
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Food
7.8
Overall
8.4
Boarding
8.6
Entertainment
8.0
Crew
8.7
Comfort
8.2
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Food
7.8
Overall
8.4
Boarding
8.6
Entertainment
8.0
Crew
8.7
Comfort
8.2
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.
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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 March 28, 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 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$593 | Average$1,245 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$629 | Average$873 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$703 | Average$1,044 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$709 | Average$1,168 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$727 | Average$1,012 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$747 | Average$1,135 | FlexibilityNo cancel fee | On-time69% |