$379+ 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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FUK
Aug 12 — Aug 191
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 July 13, 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 July 13, 2026.
This Travelocity deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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.
Wed 9/95:30 pm
STL
- NRT
2 stops31h 25m
Air Canada
Wed 9/165:50 pm
NRT
- STL
2 stops32h 07m
Air Canada
Deal found 7/8![Air Canada logo]()
$908
This Air Canada deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 15m
Air Canada
Mon 9/145:50 pm
NRT
- STL
1 stop38h 51m
Air Canada
Deal found 7/8![Air Canada logo]()
$911
This Air Canada deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 7/8![Air Canada logo]()
$914
This CheapOair deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/17:33 am
STL
- KIX
2 stops43h 07m
Air Canada
Thu 11/127:25 pm
KIX
- STL
2 stops37h 41m
Air Canada
Deal found 7/8![Air Canada logo]()
$920
This FlightHub deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 11/14:05 pm
STL
- NRT
2 stops57h 25m
Air Canada
Thu 11/126:45 pm
NRT
- STL
2 stops34h 45m
Air Canada
Deal found 7/8![Air Canada logo]()
$924
This Air Canada deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 15m
Air Canada
Mon 10/125:50 pm
NRT
- STL
1 stop38h 51m
Air Canada
Deal found 7/8![Air Canada logo]()
$942
This Air Canada deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 9/178:55 am
STL
- NRT
1 stop17h 15m
Air Canada
Thu 10/15:50 pm
NRT
- STL
1 stop38h 51m
Air Canada
Deal found 7/8![Air Canada logo]()
$947
This Air Canada deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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
Sun 9/135:50 pm
NRT
- STL
1 stop16h 30m
Air Canada
Deal found 7/8![Air Canada logo]()
$966
This FlightHub deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 8/3012:10 pm
STL
- NRT
1 stop37h 15m
Air Canada
Tue 9/155:50 pm
NRT
- STL
1 stop38h 51m
Air Canada
Deal found 7/8![Air Canada logo]()
$969
This Air Canada deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 10/1812:10 pm
STL
- KIX
2 stops38h 15m
Air Canada
Mon 10/267:25 pm
KIX
- STL
2 stops34h 01m
Air Canada
Deal found 7/8![Air Canada logo]()
$1,000
This Air Canada deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 9/78:55 am
STL
- HND
1 stop16h 45m
Air Canada
Mon 9/146:05 pm
HND
- STL
1 stop16h 15m
Air Canada
Deal found 7/8![Air Canada logo]()
$1,019
This Delta deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” 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 9/216:00 am
STL
- HND
1 stop18h 15m
Delta
Wed 9/306:25 pm
HND
- STL
1 stop16h 10m
Delta
Deal found 7/12![Delta logo]()
$1,020
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 July 13, 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 July 13, 2026.
This Air Canada deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” 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 7/12![Air Canada logo]()
$1,015
This Delta deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” 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 11/106:45 am
STL
- HND
1 stop20h 00m
Delta
Wed 11/185:15 pm
HND
- STL
1 stop21h 03m
Delta
Deal found 7/12![Delta logo]()
$1,020
This Justfly.com deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” 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 9/158:50 am
STL
- ITM
2 stops20h 05m
ANA
Tue 9/227:05 am
ITM
- STL
2 stops18h 52m
ANA
Deal found 7/11![ANA logo]()
$1,093
This United Airlines deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” 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 11/177:33 am
STL
- NRT
1 stop16h 27m
United Airlines
Tue 12/16:00 pm
NRT
- STL
1 stop35h 30m
United Airlines
Deal found 7/12![United Airlines logo]()
$1,099
This KAYAK deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:55 am
STL
- ITM
2 stops19h 45m
Multiple Airlines
Mon 9/2812:50 pm
ITM
- STL
2 stops21h 30m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$1,188
This American Airlines deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” 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 8/115:42 am
STL
- ITM
2 stops22h 03m
American Airlines
Tue 8/181:25 pm
ITM
- STL
2 stops18h 40m
American Airlines
Deal found 7/12![American Airlines logo]()
$1,219
This CheapOair deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:30 am
STL
- ITM
2 stops23h 20m
Japan Airlines
Tue 9/2211:25 am
ITM
- STL
2 stops26h 05m
Japan Airlines
Deal found 7/8![Japan Airlines logo]()
$1,277
This Cathay Pacific deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 7/8![Cathay Pacific logo]()
$1,307
This Alaska Airlines deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” 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 11/77:00 am
STL
- NRT
1 stop17h 25m
Alaska Airlines
Sat 11/145:25 pm
NRT
- STL
1 stop35h 50m
Alaska Airlines
Deal found 7/12![Alaska Airlines logo]()
$1,341
This Qatar Airways deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” 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.
Sun 8/306:45 pm
STL
- NRT
2 stops34h 25m
Qatar Airways
Tue 9/1510:25 pm
NRT
- STL
2 stops34h 42m
Qatar Airways
Deal found 7/9![Qatar Airways logo]()
$1,376
This oojo deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” 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.
Sat 8/87:56 pm
STL
- OKA
2 stops33h 24m
EVA Air
Sat 8/1510:15 am
OKA
- STL
2 stops51h 44m
EVA Air
Deal found 7/11![EVA Air logo]()
$1,769
This Air Canada deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” 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 7/12![Air Canada logo]()
$1,020
This Delta deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” 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 11/87:20 pm
STL
- HND
2 stops31h 25m
Delta
Wed 11/185:35 pm
HND
- STL
1 stop18h 02m
Delta
Deal found 7/12![Delta logo]()
$1,025
This FlightHub deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” 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 9/138:50 am
STL
- ITM
2 stops20h 05m
ANA
Sat 9/2612:50 pm
ITM
- STL
2 stops19h 26m
ANA
Deal found 7/12![ANA logo]()
$1,153
This United Airlines deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” 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 9/54:40 pm
STL
- HND
2 stops21h 45m
United Airlines
Sat 9/195:45 pm
HND
- STL
1 stop17h 02m
United Airlines
Deal found 7/12![United Airlines logo]()
$1,164
This Cathay Pacific deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” 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 8/2510:16 am
STL
- FUK
2 stops36h 29m
Multiple Airlines
Tue 9/14:40 pm
FUK
- STL
2 stops45h 02m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$1,202
This Delta deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” 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 7/10![Delta logo]()
$1,125
This FlightHub deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” 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 10/287:33 am
STL
- OKA
2 stops25h 27m
ANA
Wed 11/118:45 pm
OKA
- STL
2 stops28h 56m
ANA
Deal found 7/12![ANA logo]()
$1,159
This United Airlines deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” 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 10/288:28 am
STL
- KIX
1 stop18h 17m
United Airlines
Wed 11/118:20 am
KIX
- STL
2 stops23h 19m
United Airlines
Deal found 7/12![United Airlines logo]()
$1,173
This Cathay Pacific deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 10/83:20 pm
STL
- FUK
2 stops31h 25m
Multiple Airlines
Wed 10/212:00 pm
FUK
- STL
2 stops45h 08m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$1,202
This Delta deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” 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 9/76:00 am
STL
- HND
1 stop18h 15m
Delta
Mon 9/144:05 pm
HND
- STL
2 stops18h 30m
Delta
Deal found 7/12![Delta logo]()
$1,125
This KAYAK deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 10/188:55 am
STL
- ITM
2 stops19h 15m
ANA
Mon 10/262:00 pm
ITM
- STL
2 stops39h 26m
ANA
Deal found 7/8![ANA logo]()
$1,186
This Cathay Pacific deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” 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 8/243:32 pm
STL
- KIX
2 stops31h 23m
Multiple Airlines
Mon 8/319:45 am
KIX
- STL
2 stops27h 57m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$1,209
This United Airlines deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” 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 8/46:01 am
STL
- HND
1 stop17h 34m
United Airlines
Thu 8/1310:40 am
HND
- STL
1 stop15h 22m
United Airlines
Deal found 7/11![United Airlines logo]()
$1,210
This Air Canada deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 11/254:05 pm
STL
- FUK
2 stops36h 55m
Air Canada
Mon 11/303:20 pm
FUK
- STL
2 stops39h 06m
Air Canada
Deal found 7/8![Air Canada logo]()
$1,338
This KAYAK deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/47:07 am
STL
- ITM
2 stops22h 43m
Japan Airlines
Tue 8/112:30 pm
ITM
- STL
2 stops19h 56m
Japan Airlines
Deal found 7/11![Japan Airlines logo]()
$1,493
This United Airlines deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” 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 7/296:00 am
STL
- HND
1 stop19h 25m
United Airlines
Wed 8/125:15 pm
HND
- STL
1 stop18h 45m
United Airlines
Deal found 7/12![United Airlines logo]()
$1,210
This Justfly.com deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” 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 9/38:50 am
STL
- OKA
2 stops20h 35m
ANA
Sun 9/2011:55 am
OKA
- STL
2 stops21h 32m
ANA
Deal found 7/10![ANA logo]()
$1,212
This Air Canada deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3012:10 pm
STL
- OKA
2 stops44h 00m
Multiple Airlines
Sun 9/612:15 pm
OKA
- STL
2 stops44h 27m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$1,218
This Air Canada deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 11/84:05 pm
STL
- FUK
2 stops37h 50m
Air Canada
Thu 11/123:20 pm
FUK
- STL
2 stops39h 06m
Air Canada
Deal found 7/8![Air Canada logo]()
$1,357
Last-minute flights from St. Louis to JapanDiscover last-minute flight deals from St. Louis to Japan. Data last updated July 13, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Japan. Data last updated July 13, 2026 and is based on user searches.
This Orbitz deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/52:40 pm
STL
- NRT
2 stops58h 45m
Air Canada
Wed 8/125:35 pm
NRT
- STL
2 stops34h 29m
Air Canada
Deal found 7/8![Air Canada logo]()
$1,096
This Air Canada deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 8/612:10 pm
STL
- NRT
1 stop37h 15m
Air Canada
Thu 8/135:35 pm
NRT
- STL
1 stop39h 07m
Air Canada
Deal found 7/8![Air Canada logo]()
$1,080
This Air Canada deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 8/712:10 pm
STL
- NRT
1 stop37h 15m
Air Canada
Fri 8/145:35 pm
NRT
- STL
2 stops19h 24m
Air Canada
Deal found 7/8![Air Canada logo]()
$1,111
This Air Canada deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 8/812:10 pm
STL
- NRT
1 stop37h 15m
Air Canada
Sat 8/225:35 pm
NRT
- STL
1 stop39h 07m
Air Canada
Deal found 7/8![Air Canada logo]()
$1,100
This KAYAK deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/118:55 am
STL
- ITM
2 stops20h 00m
ANA
Mon 9/2812:50 pm
ITM
- STL
2 stops21h 30m
ANA
Deal found 7/10![ANA logo]()
$1,137
This Air Canada deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 8/1912:10 pm
STL
- NRT
1 stop37h 15m
Air Canada
Wed 8/265:35 pm
NRT
- STL
1 stop39h 07m
Air Canada
Deal found 7/8![Air Canada logo]()
$1,060
This Air Canada deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 8/295:35 pm
NRT
- STL
1 stop39h 07m
Air Canada
Deal found 7/8![Air Canada logo]()
$1,102
This Justfly.com deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” 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.
Fri 8/2812:10 pm
STL
- NRT
1 stop37h 15m
Air Canada
Fri 9/45:35 pm
NRT
- STL
1 stop39h 07m
Air Canada
Deal found 7/9![Air Canada logo]()
$1,044
This FlightHub deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 8/3012:10 pm
STL
- NRT
1 stop37h 15m
Air Canada
Tue 9/155:50 pm
NRT
- STL
1 stop38h 51m
Air Canada
Deal found 7/8![Air Canada logo]()
$969
This FlightHub deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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
- HND
1 stop35h 00m
Air Canada
Tue 9/156:05 pm
HND
- STL
1 stop16h 15m
Air Canada
Deal found 7/8![Air Canada logo]()
$1,077
This Delta deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 8/306:25 pm
STL
- HND
2 stops28h 40m
Delta
Tue 9/154:05 pm
HND
- STL
2 stops21h 37m
Delta
Deal found 7/8![Delta logo]()
$1,120
This lastminute.com deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/313:32 pm
STL
- OKA
2 stops41h 43m
ANA
Tue 9/1511:55 am
OKA
- STL
2 stops20h 21m
ANA
Deal found 7/12![ANA logo]()
$1,058
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 July 13, 2026.
Search for one-way flight options from St. Louis to Japan. Find affordable one-way fares based on user searches. Data last updated July 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” 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 9/108:10 pm
STL
- NRT
2 stops33h 00m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$379
This Kiwi.com deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” 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 8/266:45 pm
STL
- NRT
2 stops29h 25m
Multiple Airlines
Deal found 7/12![Multiple Airlines logo]()
$389
This Kiwi.com deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” 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 9/108:10 pm
STL
- KIX
3 stops47h 05m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$424
This Kiwi.com deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” 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 9/1210:35 am
STL
- KIX
3 stops56h 40m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$439
This Kiwi.com deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” 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 7/10![Multiple Airlines logo]()
$452
This Kiwi.com deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 10/198:10 pm
STL
- NRT
2 stops53h 15m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$461
This Kiwi.com deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” 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 9/912:46 pm
STL
- KIX
3 stops54h 29m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$469
This Kiwi.com deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” 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 9/1110:35 am
STL
- KIX
3 stops57h 30m
Multiple Airlines
Deal found 7/12![Multiple Airlines logo]()
$489
This Kiwi.com deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” 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 9/1110:35 am
STL
- ITM
3 stops54h 50m
Multiple Airlines
Deal found 7/12![Multiple Airlines logo]()
$517
This Thrive Travel deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Thrive Travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:35 am
STL
- NRT
1 stop19h 25m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$523
This Air Canada deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 7/2112:10 pm
STL
- NRT
1 stop37h 15m
Air Canada
Deal found 7/8![Air Canada logo]()
$546
This Kiwi.com deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 10/198:10 pm
STL
- HND
2 stops34h 50m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$570
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 July 13, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $908 (Travelocity) |
One-way from | $379 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $1,350 |
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 July 13, 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
$1,015
St. LouisTokyo
STL - HND
STLHND
Lambert-St Louis
Tue 11/10
6:45 am-5:45 pm
1 stop20h 00m
Tokyo Haneda
Wed 11/18
5:15 pm-11:18 pm
1 stop21h 03m
$1,020
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
$1,020
St. LouisTokyo
STL - HND
STLHND
Lambert-St Louis
Sun 11/8
7:20 pm-5:45 pm
2 stops31h 25m
Tokyo Haneda
Wed 11/18
5:35 pm-8:37 pm
1 stop18h 02m
$1,025
St. LouisOsaka
STL - ITM
STLITM
Lambert-St Louis
Tue 9/15
8:50 am-6:55 pm
2 stops20h 05m
Osaka Itami
Tue 9/22
7:05 am-11:57 am
2 stops18h 52m
$1,093
St. LouisTokyo
STL - NRT
STLNRT
Lambert-St Louis
Tue 11/17
7:33 am-3:00 pm
1 stop16h 27m
Tokyo Narita
Tue 12/1
6:00 pm-2:30 pm
1 stop35h 30m
$1,099
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
4:05 pm-11:42 pm
2 stops21h 37m
$1,125
St. LouisTokyo
STL - HND
STLHND
Lambert-St Louis
Mon 9/7
6:00 am-2:15 pm
1 stop18h 15m
Tokyo Haneda
Mon 9/14
4:05 pm-8:35 pm
2 stops18h 30m
$1,125
St. LouisOsaka
STL - ITM
STLITM
Lambert-St Louis
Sun 9/13
8:50 am-6:55 pm
2 stops20h 05m
Osaka Itami
Sat 9/26
12:50 pm-6:16 pm
2 stops19h 26m
$1,153
St. LouisOkinawa
STL - OKA
STLOKA
Lambert-St Louis
Wed 10/28
7:33 am-11:00 pm
2 stops25h 27m
Okinawa Naha
Wed 11/11
8:45 pm-10:41 am
2 stops28h 56m
$1,159
Showing 1-10 of 50 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-OKA
STL-HND
STL-ITM
STL-KIX
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-OKA
STL-HND
STL-ITM
What is the cheapest month to book a flight from St. Louis to Japan?
Currently, March is the cheapest month in which you can book a flight from St. Louis to Japan (average of $349). Flying from St. Louis to Japan in July is currently the most expensive (average of $812). 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 July 13, 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.
Boarding
8.4
Comfort
8.2
Crew
8.7
Overall
8.3
Entertainment
7.8
Food
7.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Boarding
8.4
Comfort
8.2
Crew
8.7
Overall
8.3
Entertainment
7.8
Food
7.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Boarding
8.4
Comfort
8.2
Crew
8.7
Overall
8.3
Entertainment
7.8
Food
7.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Boarding
8.4
Comfort
8.2
Crew
8.7
Overall
8.3
Entertainment
7.8
Food
7.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Boarding
8.4
Comfort
8.2
Crew
8.7
Overall
8.3
Entertainment
7.8
Food
7.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Boarding
8.4
Comfort
8.2
Crew
8.7
Overall
8.3
Entertainment
7.8
Food
7.7
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
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St. Louis and Japan flights
Browse other St. Louis and Japan flight options. Last updated on July 13, 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 July 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$593 | Average$1,186 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$667 | Average$1,194 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$697 | Average$1,145 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$739 | Average$1,091 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$785 | Average$1,158 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$846 | Average$1,237 | FlexibilityNo cancel fee | On-time79% |