$414+ 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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FUK
May 2 — May 91
Round-trip
1 adult, Economy
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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 April 2, 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 April 2, 2026.
This Air Canada deal was found by Cheapflights users on 3/30. 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 3/30![Air Canada logo]()
$947
This Justfly.com deal was found by Cheapflights users on 4/1. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/172:40 pm
STL
- KIX
2 stops35h 45m
Air Canada
Wed 10/216:00 pm
KIX
- STL
2 stops34h 18m
Air Canada
Deal found 4/1![Air Canada logo]()
$954
This Justfly.com deal was found by Cheapflights users on 3/29. 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 9/222:40 pm
STL
- NRT
2 stops34h 15m
Air Canada
Wed 10/75:40 pm
NRT
- STL
2 stops34h 20m
Air Canada
Deal found 3/29![Air Canada logo]()
$967
This FlightHub deal was found by Cheapflights users on 3/29. 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 9/212:40 pm
STL
- NRT
2 stops35h 00m
Air Canada
Mon 9/285:40 pm
NRT
- STL
2 stops34h 20m
Air Canada
Deal found 3/29![Air Canada logo]()
$971
This Air Canada deal was found by Cheapflights users on 3/30. 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 10/284:15 pm
STL
- NRT
1 stop34h 15m
Air Canada
Wed 11/116:45 pm
NRT
- STL
1 stop35h 45m
Air Canada
Deal found 3/30![Air Canada logo]()
$974
This Air Canada deal was found by Cheapflights users on 3/29. 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 9/286:49 pm
STL
- NRT
2 stops30h 51m
Air Canada
Tue 10/135:40 pm
NRT
- STL
2 stops28h 57m
Air Canada
Deal found 3/29![Air Canada logo]()
$975
This Air Canada deal was found by Cheapflights users on 3/29. 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 10/284:15 pm
STL
- NRT
1 stop34h 15m
Air Canada
Thu 11/56:45 pm
NRT
- STL
2 stops35h 45m
Air Canada
Deal found 3/29![Air Canada logo]()
$978
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/712:10 pm
STL
- NRT
1 stop37h 30m
Air Canada
Mon 9/145:25 pm
NRT
- STL
1 stop34h 35m
Air Canada
Deal found 3/28![Air Canada logo]()
$979
This FlightHub 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 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
Multiple Airlines
Wed 10/71:40 pm
HND
- STL
2 stops20h 20m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$980
This Air Canada deal was found by Cheapflights users on 3/29. 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 9/612:10 pm
STL
- NRT
1 stop37h 15m
Air Canada
Mon 9/145:25 pm
NRT
- STL
1 stop34h 35m
Air Canada
Deal found 3/29![Air Canada logo]()
$980
This Air Canada deal was found by Cheapflights users on 3/30. 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 10/512:10 pm
STL
- NRT
1 stop37h 30m
Air Canada
Mon 10/195:25 pm
NRT
- STL
1 stop34h 35m
Air Canada
Deal found 3/30![Air Canada logo]()
$981
This Air Canada deal was found by Cheapflights users on 3/30. 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 8/2212:10 pm
STL
- NRT
1 stop37h 15m
Air Canada
Sat 9/55:35 pm
NRT
- STL
2 stops34h 27m
Air Canada
Deal found 3/30![Air Canada logo]()
$990
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 April 2, 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 April 2, 2026.
This Air Canada 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 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 3/28![Air Canada logo]()
$947
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:30 am
STL
- HND
2 stops17h 50m
Delta
Mon 9/143:15 pm
HND
- STL
1 stop19h 35m
Delta
Deal found 3/28![Delta logo]()
$1,107
This oojo deal was found by Cheapflights users on 3/29. 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
Fri 8/148:20 am
ITM
- STL
2 stops21h 28m
Japan Airlines
Deal found 3/29![Japan Airlines logo]()
$1,143
This FlightHub deal was found by Cheapflights users on 3/29. 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 9/57:34 pm
STL
- OKA
2 stops33h 21m
Multiple Airlines
Wed 9/1610:15 am
OKA
- STL
2 stops51h 44m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$1,164
This United Airlines deal was found by Cheapflights users on 3/29. 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 8/305:00 am
STL
- HND
1 stop26h 15m
United Airlines
Thu 9/33:45 pm
HND
- STL
1 stop17h 11m
United Airlines
Deal found 3/29![United Airlines logo]()
$1,189
This FlightHub deal was found by Cheapflights users on 3/29. 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 8/309:16 am
STL
- OKA
2 stops23h 29m
ANA
Sun 9/611:55 am
OKA
- STL
2 stops21h 36m
ANA
Deal found 3/29![ANA logo]()
$1,230
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:00 am
STL
- HND
2 stops20h 15m
Delta
Sun 9/134:20 pm
HND
- STL
2 stops21h 17m
Delta
Deal found 3/28![Delta logo]()
$1,107
This oojo deal was found by Cheapflights users on 3/30. 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 3/30![Japan Airlines logo]()
$1,143
This United Airlines deal was found by Cheapflights users on 3/29. 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 8/255:00 am
STL
- NRT
2 stops19h 30m
United Airlines
Fri 8/284:30 pm
NRT
- STL
2 stops18h 52m
United Airlines
Deal found 3/29![United Airlines logo]()
$1,195
This oojo 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 oojo 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 9/227:05 am
ITM
- STL
2 stops21h 20m
Japan Airlines
Deal found 3/28![Japan Airlines logo]()
$1,144
This United Airlines deal was found by Cheapflights users on 3/30. 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
Thu 8/134:55 pm
KIX
- STL
2 stops33h 45m
United Airlines
Deal found 3/30![United Airlines logo]()
$1,198
This Alaska Airlines deal was found by Cheapflights users on 4/1. 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.
Wed 4/227:00 am
STL
- NRT
1 stop19h 00m
Multiple Airlines
Wed 4/296:00 pm
NRT
- STL
1 stop19h 59m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$1,430
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/68:55 am
STL
- FUK
2 stops20h 55m
Air Canada
Wed 9/912:55 pm
FUK
- STL
2 stops21h 05m
Air Canada
Deal found 3/28![Air Canada logo]()
$1,432
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/68:35 am
STL
- ITM
2 stops21h 15m
Japan Airlines
Fri 8/149:25 am
ITM
- STL
2 stops20h 23m
Japan Airlines
Deal found 3/28![Japan Airlines logo]()
$1,192
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 Delta deal was found by Cheapflights users on 3/29. 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 8/16:04 pm
STL
- HND
2 stops29h 01m
Delta
Wed 8/124:20 pm
HND
- STL
2 stops21h 17m
Delta
Deal found 3/29![Delta logo]()
$1,445
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.
Sun 8/308:00 am
STL
- ITM
2 stops43h 05m
United Airlines
Wed 9/212:50 pm
ITM
- STL
2 stops19h 34m
United Airlines
Deal found 3/28![United Airlines logo]()
$1,199
This Alaska Airlines deal was found by Cheapflights users on 3/29. 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 7/117:56 pm
STL
- NRT
1 stop30h 04m
Multiple Airlines
Mon 7/136:00 pm
NRT
- STL
1 stop19h 59m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$1,452
This Japan 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 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 3/28![Japan Airlines logo]()
$1,251
This Delta deal was found by Cheapflights users on 3/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/286:00 am
STL
- HND
2 stops20h 15m
Delta
Tue 5/54:05 pm
HND
- STL
1 stop14h 45m
Delta
Deal found 3/31![Delta logo]()
$1,465
This United Airlines deal was found by Cheapflights users on 3/29. 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
- HND
2 stops19h 30m
United Airlines
Sat 9/56:10 pm
HND
- STL
2 stops19h 40m
United Airlines
Deal found 3/29![United Airlines logo]()
$1,244
This Japan Airlines deal was found by Cheapflights users on 4/1. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:00 am
STL
- ITM
2 stops23h 50m
Japan Airlines
Sat 9/122:35 pm
ITM
- STL
2 stops18h 03m
Japan Airlines
Deal found 4/1![Japan Airlines logo]()
$1,258
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/122:15 pm
STL
- OKA
3 stops34h 55m
Multiple Airlines
Tue 5/197:15 am
OKA
- STL
2 stops26h 54m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$1,592
This Delta deal was found by Cheapflights users on 3/29. 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 8/36:21 am
STL
- HND
2 stops17h 59m
Delta
Sun 8/93:15 pm
HND
- STL
1 stop22h 38m
Delta
Deal found 3/29![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.
Sat 8/15:33 pm
STL
- NRT
2 stops30h 57m
United Airlines
Sat 8/225:05 pm
NRT
- STL
1 stop15h 19m
United Airlines
Deal found 3/28![United Airlines logo]()
$1,245
This Japan Airlines deal was found by Cheapflights users on 4/1. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:23 am
STL
- OKA
2 stops39h 47m
Japan Airlines
Wed 9/912:30 pm
OKA
- STL
2 stops24h 32m
Japan Airlines
Deal found 4/1![Japan Airlines logo]()
$1,336
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.
Thu 8/65:10 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]()
$1,248
This Air Canada deal was found by Cheapflights users on 3/29. 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 5/137:05 am
STL
- HIJ
2 stops22h 45m
Multiple Airlines
Wed 5/2012:20 pm
HIJ
- STL
2 stops21h 49m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$1,678
This flugladen.de deal was found by Cheapflights users on 4/1. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/164:12 pm
STL
- OKA
2 stops27h 03m
Multiple Airlines
Sat 5/2310:15 am
OKA
- STL
2 stops43h 01m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$1,737
This Japan Airlines deal was found by Cheapflights users on 3/31. 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.
Mon 7/208:25 am
STL
- NRT
1 stop16h 35m
Japan Airlines
Thu 7/309:45 am
NRT
- STL
1 stop16h 54m
Japan Airlines
Deal found 3/31![Japan Airlines logo]()
$1,438
Last-minute flights from St. Louis to JapanDiscover last-minute flight deals from St. Louis to Japan. Data last updated April 2, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Japan. Data last updated April 2, 2026 and is based on user searches.
This Air Canada 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 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 3/28![Air Canada logo]()
$1,015
This Air Canada deal was found by Cheapflights users on 3/31. 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 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
2 stops28h 34m
Air Canada
Deal found 3/31![Air Canada logo]()
$1,077
This FlightHub deal was found by Cheapflights users on 3/31. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/164:05 pm
STL
- NRT
2 stops33h 20m
Air Canada
Tue 5/54:30 pm
NRT
- STL
2 stops41h 39m
Air Canada
Deal found 3/31![Air Canada logo]()
$1,004
This FlightHub 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 FlightHub 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 3/28![Air Canada logo]()
$967
This Air Canada deal was found by Cheapflights users on 3/29. 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 3/29![Air Canada logo]()
$1,024
This Expedia deal was found by Cheapflights users on 3/29. 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 4/274:05 pm
STL
- NRT
2 stops33h 20m
Air Canada
Mon 5/45:25 pm
NRT
- STL
1 stop16h 44m
Air Canada
Deal found 3/29![Air Canada logo]()
$1,032
This Air Canada deal was found by Cheapflights users on 3/30. 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 4/276:55 pm
STL
- HND
2 stops30h 45m
Air Canada
Mon 5/46:05 pm
HND
- STL
1 stop16h 04m
Air Canada
Deal found 3/30![Air Canada logo]()
$1,142
This FlightHub deal was found by Cheapflights users on 3/31. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/289:10 am
STL
- HND
2 stops40h 30m
Air Canada
Tue 5/56:05 pm
HND
- STL
2 stops38h 48m
Air Canada
Deal found 3/31![Air Canada logo]()
$1,232
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 4/297:00 am
STL
- NRT
1 stop19h 00m
Multiple Airlines
Wed 5/64:25 pm
NRT
- STL
2 stops21h 34m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$1,012
This Air Canada deal was found by Cheapflights users on 4/1. 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 4/296:30 am
STL
- HND
2 stops19h 10m
Air Canada
Wed 5/66:05 pm
HND
- STL
1 stop16h 04m
Air Canada
Deal found 4/1![Air Canada logo]()
$1,271
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/124:46 pm
STL
- OKA
2 stops36h 09m
Multiple Airlines
Tue 5/1910:15 am
OKA
- STL
2 stops43h 01m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$1,389
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/124:46 pm
STL
- FUK
2 stops35h 19m
China Airlines
Tue 5/199:00 pm
FUK
- STL
2 stops32h 16m
China Airlines
Deal found 3/28![China Airlines logo]()
$1,397
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 April 2, 2026.
Search for one-way flight options from St. Louis to Japan. Find affordable one-way fares based on user searches. Data last updated April 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 8/213:33 pm
STL
- NRT
2 stops38h 27m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$414
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 4/158:23 pm
STL
- NRT
2 stops52h 02m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$436
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 4/138:19 pm
STL
- NRT
2 stops57h 41m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$443
This Kiwi.com deal was found by Cheapflights users on 4/1. 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.
Tue 7/148:08 pm
STL
- NRT
2 stops28h 42m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$453
This Kiwi.com deal was found by Cheapflights users on 3/30. 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
- NRT
2 stops33h 43m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$457
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 4/1611:25 am
STL
- NRT
2 stops37h 00m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$480
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 4/178:39 am
STL
- NRT
3 stops39h 46m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$502
This Kiwi.com deal was found by Cheapflights users on 4/1. 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.
Tue 7/148:08 pm
STL
- KIX
3 stops35h 42m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$528
This SmartFares deal was found by Cheapflights users on 3/30. 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 9/147:34 pm
STL
- NRT
1 stop30h 26m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$529
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 3/30![Multiple Airlines logo]()
$533
This FlightHub deal was found by Cheapflights users on 3/30. 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 9/147:44 am
STL
- HND
1 stop19h 46m
Japan Airlines
Deal found 3/30![Japan Airlines logo]()
$559
This oojo deal was found by Cheapflights users on 4/1. 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 9/297:44 am
STL
- ITM
2 stops22h 06m
Japan Airlines
Deal found 4/1![Japan Airlines logo]()
$560
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 April 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $947 (Air Canada) |
One-way from | $414 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $991 |
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 April 2, 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
12:10 pm-4:25 pm
2 stops38h 15m
Osaka Kansai Intl
Tue 9/22
6:00 pm-6:41 pm
2 stops38h 41m
$947
St. LouisTokyo
STL - HND
STLHND
Lambert-St Louis
Mon 9/7
6:30 am-2:20 pm
2 stops17h 50m
Tokyo Haneda
Mon 9/14
3:15 pm-8:50 pm
1 stop19h 35m
$1,107
St. LouisTokyo
STL - HND
STLHND
Lambert-St Louis
Sun 9/6
6:00 am-4:15 pm
2 stops20h 15m
Tokyo Haneda
Sun 9/13
4:20 pm-11:37 pm
2 stops21h 17m
$1,107
St. LouisOsaka
STL - ITM
STLITM
Lambert-St Louis
Wed 8/5
8:35 am-7:50 pm
2 stops21h 15m
Osaka Itami
Fri 8/14
8:20 am-3:48 pm
2 stops21h 28m
$1,143
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. LouisOsaka
STL - ITM
STLITM
Lambert-St Louis
Tue 9/15
7:44 am-7:50 pm
2 stops22h 06m
Osaka Itami
Tue 9/22
7:05 am-2:25 pm
2 stops21h 20m
$1,144
St. LouisOkinawa
STL - OKA
STLOKA
Lambert-St Louis
Sat 9/5
7:34 pm-6:55 pm
2 stops33h 21m
Okinawa Naha
Wed 9/16
10:15 am-11:59 pm
2 stops51h 44m
$1,164
St. LouisTokyo
STL - HND
STLHND
Lambert-St Louis
Sun 8/30
5:00 am-9:15 pm
1 stop26h 15m
Tokyo Haneda
Thu 9/3
3:45 pm-6:56 pm
1 stop17h 11m
$1,189
St. LouisOsaka
STL - ITM
STLITM
Lambert-St Louis
Thu 8/6
8:35 am-7:50 pm
2 stops21h 15m
Osaka Itami
Fri 8/14
9:25 am-3:48 pm
2 stops20h 23m
$1,192
St. LouisTokyo
STL - NRT
STLNRT
Lambert-St Louis
Tue 8/25
5:00 am-2:30 pm
2 stops19h 30m
Tokyo Narita
Fri 8/28
4:30 pm-9:22 pm
2 stops18h 52m
$1,195
Showing 1-10 of 58 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-ITM
STL-KIX
STL-HND
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-NRT
STL-ITM
STL-KIX
STL-HND
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 April 2, 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.
Boarding
8.5
Entertainment
8.0
Comfort
8.2
Food
7.8
Overall
8.4
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Boarding
8.5
Entertainment
8.0
Comfort
8.2
Food
7.8
Overall
8.4
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Boarding
8.5
Entertainment
8.0
Comfort
8.2
Food
7.8
Overall
8.4
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Boarding
8.5
Entertainment
8.0
Comfort
8.2
Food
7.8
Overall
8.4
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Boarding
8.5
Entertainment
8.0
Comfort
8.2
Food
7.8
Overall
8.4
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Boarding
8.5
Entertainment
8.0
Comfort
8.2
Food
7.8
Overall
8.4
Crew
8.7
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.
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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 April 2, 2026.
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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 April 2, 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% |