$370+ 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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FUK
Aug 31 — Sep 71
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Japan with Cheapflights
1. Tell us where you want to go
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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 August 1, 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 August 1, 2026.
This Trip.com deal was found by Cheapflights users on 7/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/178:55 am
STL
- NRT
1 stop17h 15m
Air Canada
Wed 9/305:50 pm
NRT
- STL
1 stop38h 51m
Air Canada
Deal found 7/27![Air Canada logo]()
$799
This FlightHub deal was found by Cheapflights users on 7/27. 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.
Tue 9/1512:10 pm
STL
- NRT
1 stop37h 15m
Air Canada
Mon 9/215:50 pm
NRT
- STL
2 stops32h 07m
Air Canada
Deal found 7/27![Air Canada logo]()
$819
This Expedia deal was found by Cheapflights users on 7/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/57:04 pm
STL
- NRT
2 stops30h 26m
Air Canada
Mon 12/146:45 pm
NRT
- STL
2 stops34h 45m
Air Canada
Deal found 7/30![Air Canada logo]()
$823
This Air Canada deal was found by Cheapflights users on 7/26. 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 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 7/26![Air Canada logo]()
$825
This Air Canada deal was found by Cheapflights users on 7/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1612:10 pm
STL
- NRT
1 stop37h 15m
Air Canada
Fri 9/255:50 pm
NRT
- STL
1 stop16h 30m
Air Canada
Deal found 7/27![Air Canada logo]()
$827
This FlightHub deal was found by Cheapflights users on 7/28. 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 12/14:05 pm
STL
- NRT
2 stops33h 35m
Air Canada
Fri 12/46:45 pm
NRT
- STL
2 stops34h 45m
Air Canada
Deal found 7/28![Air Canada logo]()
$828
This Justfly.com deal was found by Cheapflights users on 7/29. 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.
Sat 9/1912:10 pm
STL
- NRT
1 stop37h 15m
Air Canada
Fri 9/254:50 pm
NRT
- STL
2 stops35h 10m
Air Canada
Deal found 7/29![Air Canada logo]()
$837
This SmartFares deal was found by Cheapflights users on 7/30. 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.
Sun 9/208:55 am
STL
- NRT
1 stop17h 15m
Air Canada
Tue 10/65:50 pm
NRT
- STL
1 stop16h 10m
Air Canada
Deal found 7/30![Air Canada logo]()
$838
This FlightHub deal was found by Cheapflights users on 7/27. 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.
Tue 9/158:55 am
STL
- HND
2 stops35h 40m
Air Canada
Mon 9/216:05 pm
HND
- STL
2 stops35h 33m
Air Canada
Deal found 7/27![Air Canada logo]()
$883
This Expedia deal was found by Cheapflights users on 7/29. 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.
Sat 9/196:53 pm
STL
- HND
2 stops30h 47m
Multiple Airlines
Fri 9/258:45 am
HND
- STL
2 stops25h 35m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$892
This Expedia deal was found by Cheapflights users on 7/27. 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.
Thu 9/178:55 am
STL
- HND
2 stops21h 00m
Multiple Airlines
Wed 9/306:05 pm
HND
- STL
1 stop16h 15m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$895
This Expedia deal was found by Cheapflights users on 7/27. 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.
Tue 9/158:55 am
STL
- HND
2 stops21h 00m
Multiple Airlines
Mon 9/216:05 pm
HND
- STL
1 stop33h 55m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$896
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 August 1, 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 August 1, 2026.
This FlightHub deal was found by Cheapflights users on 7/26. 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.
Tue 9/158:55 am
STL
- ITM
2 stops19h 15m
Multiple Airlines
Tue 9/228:00 am
ITM
- STL
2 stops26h 20m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$950
This Air Canada deal was found by Cheapflights users on 7/30. 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 9/158:55 am
STL
- KIX
1 stop17h 30m
Air Canada
Tue 9/226:00 pm
KIX
- STL
2 stops38h 41m
Air Canada
Deal found 7/30![Air Canada logo]()
$959
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Wed 9/166:00 am
STL
- HND
1 stop19h 25m
United Airlines
Fri 9/253:45 pm
HND
- STL
1 stop17h 36m
United Airlines
Deal found 7/27![United Airlines logo]()
$1,108
This Delta deal was found by Cheapflights users on 7/27. 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.
Wed 9/166:00 am
STL
- HND
2 stops20h 15m
Delta
Fri 9/254:05 pm
HND
- STL
2 stops21h 37m
Delta
Deal found 7/27![Delta logo]()
$1,112
This American Airlines deal was found by Cheapflights users on 7/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:36 am
STL
- OKA
2 stops22h 54m
American Airlines
Tue 9/810:50 am
OKA
- STL
2 stops21h 15m
American Airlines
Deal found 7/27![American Airlines logo]()
$1,115
This FlightHub deal was found by Cheapflights users on 7/29. 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.
Wed 8/56:14 am
STL
- ITM
2 stops24h 01m
ANA
Thu 8/278:00 am
ITM
- STL
2 stops18h 02m
ANA
Deal found 7/29![ANA logo]()
$1,166
This Cathay Pacific deal was found by Cheapflights users on 7/29. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:00 am
STL
- NRT
2 stops41h 40m
Cathay Pacific
Sun 9/203:45 pm
NRT
- STL
3 stops45h 58m
Cathay Pacific
Deal found 7/29![Cathay Pacific logo]()
$1,229
This BusinessClass deal was found by Cheapflights users on 7/29. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/48:38 am
STL
- ITM
2 stops21h 12m
Japan Airlines
Tue 8/257:25 am
ITM
- STL
2 stops18h 50m
Japan Airlines
Deal found 7/29![Japan Airlines logo]()
$1,460
This Qatar Airways deal was found by Cheapflights users on 7/29. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2911:35 am
STL
- FUK
3 stops54h 35m
Qatar Airways
Sat 9/54:30 pm
FUK
- STL
3 stops41h 21m
Qatar Airways
Deal found 7/29![Qatar Airways logo]()
$1,764
This Air Canada deal was found by Cheapflights users on 7/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1112:10 pm
STL
- KIX
2 stops38h 15m
Air Canada
Thu 10/297:25 pm
KIX
- STL
2 stops34h 01m
Air Canada
Deal found 7/27![Air Canada logo]()
$972
This Air Canada deal was found by Cheapflights users on 7/29. 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.
Sat 9/128:55 am
STL
- KIX
1 stop17h 30m
Air Canada
Wed 9/166:00 pm
KIX
- STL
2 stops35h 38m
Air Canada
Deal found 7/29![Air Canada logo]()
$991
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Wed 9/169:00 am
STL
- NRT
1 stop15h 45m
United Airlines
Fri 9/255:00 pm
NRT
- STL
1 stop18h 21m
United Airlines
Deal found 7/27![United Airlines logo]()
$1,108
This Cathay Pacific deal was found by Cheapflights users on 7/26. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/155:00 pm
STL
- KIX
3 stops31h 50m
Multiple Airlines
Tue 9/229:45 am
KIX
- STL
2 stops27h 58m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$1,160
This Delta deal was found by Cheapflights users on 7/29. 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.
Wed 8/2610:33 am
STL
- HND
1 stop15h 42m
Delta
Wed 9/24:05 pm
HND
- STL
2 stops21h 16m
Delta
Deal found 7/29![Delta logo]()
$1,163
This FlightHub deal was found by Cheapflights users on 7/29. 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.
Wed 8/56:14 am
STL
- ITM
2 stops21h 56m
ANA
Wed 8/267:05 am
ITM
- STL
2 stops18h 57m
ANA
Deal found 7/29![ANA logo]()
$1,166
This United Airlines deal was found by Cheapflights users on 7/28. 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 9/238:40 am
STL
- FUK
2 stops42h 50m
United Airlines
Wed 9/3012:15 pm
FUK
- STL
2 stops24h 44m
United Airlines
Deal found 7/28![United Airlines logo]()
$1,115
This Cathay Pacific deal was found by Cheapflights users on 7/27. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:00 am
STL
- NRT
2 stops42h 30m
Cathay Pacific
Sun 9/133:45 pm
NRT
- STL
3 stops45h 58m
Cathay Pacific
Deal found 7/27![Cathay Pacific logo]()
$1,231
This Air Canada deal was found by Cheapflights users on 7/29. 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 9/238:55 am
STL
- ITM
2 stops19h 15m
Air Canada
Mon 9/282:00 pm
ITM
- STL
2 stops38h 00m
Air Canada
Deal found 7/29![Air Canada logo]()
$1,043
This Delta deal was found by Cheapflights users on 7/27. 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.
Sun 9/66:00 am
STL
- HND
2 stops20h 15m
Delta
Sun 9/134:05 pm
HND
- STL
2 stops21h 37m
Delta
Deal found 7/27![Delta logo]()
$1,168
This Cathay Pacific deal was found by Cheapflights users on 7/30. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:04 am
STL
- HND
2 stops41h 51m
Multiple Airlines
Thu 10/2210:05 am
HND
- STL
2 stops25h 54m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$1,174
This Justfly.com deal was found by Cheapflights users on 7/27. 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.
Thu 9/38:30 am
STL
- OKA
2 stops20h 55m
ANA
Sun 9/2012:35 pm
OKA
- STL
2 stops20h 41m
ANA
Deal found 7/27![ANA logo]()
$1,216
This Cathay Pacific deal was found by Cheapflights users on 7/31. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/81:06 pm
STL
- NRT
2 stops41h 44m
Cathay Pacific
Sun 10/1810:00 pm
NRT
- STL
2 stops37h 08m
Cathay Pacific
Deal found 7/31![Cathay Pacific logo]()
$1,281
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/199:30 am
STL
- HND
1 stop15h 55m
United Airlines
Fri 8/285:45 pm
HND
- STL
1 stop19h 53m
United Airlines
Deal found 7/31![United Airlines logo]()
$1,169
This Delta deal was found by Cheapflights users on 7/29. 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.
Wed 8/196:00 am
STL
- HND
2 stops20h 15m
Delta
Wed 8/264:35 pm
HND
- STL
2 stops22h 06m
Delta
Deal found 7/29![Delta logo]()
$1,214
This Cathay Pacific deal was found by Cheapflights users on 7/28. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:01 am
STL
- NRT
2 stops29h 49m
Multiple Airlines
Sat 10/1710:00 pm
NRT
- STL
2 stops37h 59m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$1,224
This KAYAK deal was found by Cheapflights users on 7/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/309:30 am
STL
- OKA
2 stops23h 45m
ANA
Sun 9/68:00 am
OKA
- STL
2 stops25h 16m
ANA
Deal found 7/30![ANA logo]()
$1,226
This American Airlines deal was found by Cheapflights users on 7/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/58:36 am
STL
- ITM
2 stops21h 14m
American Airlines
Fri 8/147:25 am
ITM
- STL
2 stops18h 50m
American Airlines
Deal found 7/30![American Airlines logo]()
$1,502
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Tue 10/277:30 am
STL
- NRT
1 stop17h 45m
United Airlines
Thu 11/126:00 pm
NRT
- STL
1 stop20h 15m
United Airlines
Deal found 7/28![United Airlines logo]()
$1,170
This Air Canada deal was found by Cheapflights users on 7/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/264:05 pm
STL
- HIJ
2 stops36h 35m
Air Canada
Sat 1/303:55 pm
HIJ
- STL
2 stops38h 31m
Air Canada
Deal found 7/27![Air Canada logo]()
$1,213
This Cathay Pacific deal was found by Cheapflights users on 7/29. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/91:06 pm
STL
- NRT
2 stops41h 44m
Cathay Pacific
Mon 10/193:45 pm
NRT
- STL
3 stops40h 31m
Cathay Pacific
Deal found 7/29![Cathay Pacific logo]()
$1,347
Last-minute flights from St. Louis to JapanDiscover last-minute flight deals from St. Louis to Japan. Data last updated August 1, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Japan. Data last updated August 1, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 7/29. 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 8/25:10 am
STL
- HND
2 stops23h 50m
United Airlines
Tue 8/45:15 pm
HND
- STL
1 stop16h 08m
United Airlines
Deal found 7/29![United Airlines logo]()
$1,137
This Air Canada deal was found by Cheapflights users on 7/29. 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.
Tue 8/1812:10 pm
STL
- NRT
1 stop37h 15m
Air Canada
Mon 9/145:50 pm
NRT
- STL
1 stop38h 51m
Air Canada
Deal found 7/29![Air Canada logo]()
$918
This Orbitz deal was found by Cheapflights users on 7/29. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/188:55 am
STL
- HND
2 stops23h 25m
Multiple Airlines
Mon 9/146:05 pm
HND
- STL
1 stop33h 55m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$1,004
This Air Canada deal was found by Cheapflights users on 7/29. 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.
Tue 8/182:40 pm
STL
- HND
1 stop35h 00m
Air Canada
Mon 9/146:05 pm
HND
- STL
1 stop33h 55m
Air Canada
Deal found 7/29![Air Canada logo]()
$1,026
This Air Canada deal was found by Cheapflights users on 7/31. 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.
Sun 8/2312:10 pm
STL
- NRT
1 stop37h 15m
Air Canada
Sat 9/55:35 pm
NRT
- STL
2 stops34h 27m
Air Canada
Deal found 7/31![Air Canada logo]()
$971
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Tue 8/258:00 am
STL
- HND
1 stop23h 15m
United Airlines
Tue 9/13:45 pm
HND
- STL
1 stop17h 26m
United Airlines
Deal found 7/28![United Airlines logo]()
$1,118
This SmartFares deal was found by Cheapflights users on 7/30. 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.
Wed 8/266:15 am
STL
- HND
1 stop19h 10m
ANA
Wed 9/25:15 pm
HND
- STL
1 stop16h 01m
ANA
Deal found 7/30![ANA logo]()
$1,112
This Travelocity deal was found by Cheapflights users on 7/29. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/285:30 pm
STL
- NRT
2 stops55h 55m
Air Canada
Fri 9/45:35 pm
NRT
- STL
2 stops32h 28m
Air Canada
Deal found 7/29![Air Canada logo]()
$936
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/289:30 am
STL
- HND
1 stop15h 55m
ANA
Fri 9/45:15 pm
HND
- STL
1 stop16h 01m
ANA
Deal found 7/29![ANA logo]()
$1,148
This FlightHub deal was found by Cheapflights users on 7/31. 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.
Sun 8/302:40 pm
STL
- NRT
2 stops34h 45m
Air Canada
Sun 9/65:35 pm
NRT
- STL
1 stop39h 07m
Air Canada
Deal found 7/31![Air Canada logo]()
$990
This Air Canada deal was found by Cheapflights users on 7/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/318:55 am
STL
- NRT
1 stop16h 55m
Air Canada
Wed 9/305:50 pm
NRT
- STL
1 stop38h 51m
Air Canada
Deal found 7/27![Air Canada logo]()
$923
This FlightHub deal was found by Cheapflights users on 7/27. 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.
Mon 8/318:55 am
STL
- HND
1 stop16h 45m
Multiple Airlines
Wed 9/301:40 pm
HND
- STL
2 stops20h 40m
Multiple Airlines
Deal found 7/27![Multiple Airlines 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 August 1, 2026.
Search for one-way flight options from St. Louis to Japan. Find affordable one-way fares based on user searches. Data last updated August 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:17 pm
STL
- NRT
3 stops58h 53m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$370
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/218:10 pm
STL
- NRT
2 stops53h 15m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$412
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2010:35 am
STL
- NRT
2 stops38h 50m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$414
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2210:35 am
STL
- NRT
2 stops38h 50m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$417
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:58 pm
STL
- NRT
2 stops52h 27m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$421
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1810:35 am
STL
- NRT
2 stops38h 50m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$422
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/77:10 pm
STL
- NRT
2 stops53h 40m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$430
This Expedia deal was found by Cheapflights users on 7/29. 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.
Wed 8/512:10 pm
STL
- NRT
1 stop37h 15m
Air Canada
Deal found 7/29![Air Canada logo]()
$431
This Expedia deal was found by Cheapflights users on 7/29. 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.
Wed 8/52:40 pm
STL
- KIX
1 stop35h 45m
Air Canada
Deal found 7/29![Air Canada logo]()
$436
This FlightHub deal was found by Cheapflights users on 7/29. 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.
Tue 8/412:10 pm
STL
- KIX
2 stops38h 15m
Air Canada
Deal found 7/29![Air Canada logo]()
$444
This FlightHub deal was found by Cheapflights users on 7/29. 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.
Tue 8/412:10 pm
STL
- NRT
1 stop37h 15m
Air Canada
Deal found 7/29![Air Canada logo]()
$444
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2010:35 am
STL
- KIX
3 stops42h 40m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$454
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 August 1, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $799 (Trip.com) |
One-way from | $370 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $1,009 |
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 August 1, 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 - ITM
STLITM
Lambert-St Louis
Tue 9/15
8:55 am-6:10 pm
2 stops19h 15m
Osaka Itami
Tue 9/22
8:00 am-8:20 pm
2 stops26h 20m
$950
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
$959
St. LouisOsaka
STL - KIX
STLKIX
Lambert-St Louis
Sun 10/11
12:10 pm-4:25 pm
2 stops38h 15m
Osaka Kansai Intl
Thu 10/29
7:25 pm-3:26 pm
2 stops34h 01m
$972
St. LouisOsaka
STL - KIX
STLKIX
Lambert-St Louis
Sat 9/12
8:55 am-4:25 pm
1 stop17h 30m
Osaka Kansai Intl
Wed 9/16
6:00 pm-3:38 pm
2 stops35h 38m
$991
St. LouisOsaka
STL - ITM
STLITM
Lambert-St Louis
Wed 9/23
8:55 am-6:10 pm
2 stops19h 15m
Osaka Itami
Mon 9/28
2:00 pm-2:00 pm
2 stops38h 00m
$1,043
St. LouisTokyo
STL - HND
STLHND
Lambert-St Louis
Wed 9/16
6:00 am-3:25 pm
1 stop19h 25m
Tokyo Haneda
Fri 9/25
3:45 pm-7:21 pm
1 stop17h 36m
$1,108
Quickest round-trip
St. LouisTokyo
STL - NRT
STLNRT
Lambert-St Louis
Wed 9/16
9:00 am-2:45 pm
1 stop15h 45m
Tokyo Narita
Fri 9/25
5:00 pm-9:21 pm
1 stop18h 21m
$1,108
St. LouisTokyo
STL - HND
STLHND
Lambert-St Louis
Wed 9/16
6:00 am-4:15 pm
2 stops20h 15m
Tokyo Haneda
Fri 9/25
4:05 pm-11:42 pm
2 stops21h 37m
$1,112
St. LouisOkinawa
STL - OKA
STLOKA
Lambert-St Louis
Tue 9/1
6:36 am-7:30 pm
2 stops22h 54m
Okinawa Naha
Tue 9/8
10:50 am-6:05 pm
2 stops21h 15m
$1,115
St. LouisFukuoka
STL - FUK
STLFUK
Lambert-St Louis
Wed 9/23
8:40 am-5:30 pm
2 stops42h 50m
Fukuoka
Wed 9/30
12:15 pm-10:59 pm
2 stops24h 44m
$1,115
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-ITM
STL-KIX
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-HND
STL-ITM
STL-KIX
What is the cheapest month to book a flight from St. Louis to Japan?
Currently, February is the cheapest month in which you can book a flight from St. Louis to Japan (average of $813). Flying from St. Louis to Japan in June is currently the most expensive (average of $1,412). 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.
How far ahead should I book a flight from St. Louis to Japan?
The price you pay for your flight from St. Louis to Japan may vary depending on when you book. For the best chance of a lower fare, look to book 4 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
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 August 1, 2026.
Read through reviews of airlines operating flights from St. Louis to Japan, such as Japan Airlines,ANA, andDelta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Food
7.7
Crew
8.7
Boarding
8.4
Comfort
8.2
Overall
8.3
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Entertainment
7.8
Food
7.7
Crew
8.7
Boarding
8.4
Comfort
8.2
Overall
8.3
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Entertainment
7.8
Food
7.7
Crew
8.7
Boarding
8.4
Comfort
8.2
Overall
8.3
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Entertainment
7.8
Food
7.7
Crew
8.7
Boarding
8.4
Comfort
8.2
Overall
8.3
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Entertainment
7.8
Food
7.7
Crew
8.7
Boarding
8.4
Comfort
8.2
Overall
8.3
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Entertainment
7.8
Food
7.7
Crew
8.7
Boarding
8.4
Comfort
8.2
Overall
8.3
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
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 August 1, 2026.
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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 August 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$593 | Average$1,186 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$667 | Average$1,214 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$697 | Average$1,164 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$739 | Average$1,098 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$785 | Average$1,230 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$846 | Average$1,277 | FlexibilityNo cancel fee | On-time79% |