$366+ 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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FUK
Aug 18 — Aug 251
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Japan with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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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 19, 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 19, 2026.
This Flightnetwork deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/38:55 am
STL
- NRT
1 stop16h 55m
Air Canada
Wed 9/165:50 pm
NRT
- STL
1 stop38h 51m
Air Canada
Deal found 7/15![Air Canada logo]()
$874
This Gotogate deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/612:10 pm
STL
- NRT
1 stop37h 15m
Air Canada
Mon 9/215:50 pm
NRT
- STL
1 stop38h 51m
Air Canada
Deal found 7/16![Air Canada logo]()
$903
This Air Canada deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 7/15![Air Canada logo]()
$911
This Air Canada deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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 7/14![Air Canada logo]()
$914
This Air Canada deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 9/285:50 pm
NRT
- STL
1 stop16h 30m
Air Canada
Deal found 7/15![Air Canada logo]()
$916
This Orbitz deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 12/14:05 pm
STL
- NRT
2 stops33h 25m
Air Canada
Wed 12/96:45 pm
NRT
- STL
1 stop35h 41m
Air Canada
Deal found 7/15![Air Canada logo]()
$921
This CheapOair deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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.
Sat 9/52:40 pm
STL
- NRT
2 stops34h 15m
Air Canada
Tue 9/155:50 pm
NRT
- STL
2 stops32h 07m
Air Canada
Deal found 7/15![Air Canada logo]()
$924
This Flightnetwork deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/38:55 am
STL
- HND
1 stop16h 45m
Air Canada
Wed 9/166:05 pm
HND
- STL
1 stop33h 55m
Air Canada
Deal found 7/15![Air Canada logo]()
$973
This Air Canada deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” 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 9/202:40 pm
STL
- KIX
2 stops35h 45m
Air Canada
Sat 9/266:00 pm
KIX
- STL
2 stops34h 00m
Air Canada
Deal found 7/18![Air Canada logo]()
$974
This Air Canada deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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
- KIX
2 stops38h 15m
Air Canada
Mon 9/286:00 pm
KIX
- STL
2 stops34h 00m
Air Canada
Deal found 7/16![Air Canada logo]()
$980
This FlightHub deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 9/72:40 pm
STL
- HND
2 stops41h 50m
Multiple Airlines
Mon 9/286:05 pm
HND
- STL
2 stops34h 12m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$983
This Air Canada deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 8/188:55 am
STL
- KIX
1 stop17h 30m
Air Canada
Tue 9/296:00 pm
KIX
- STL
2 stops34h 00m
Air Canada
Deal found 7/16![Air Canada logo]()
$985
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 19, 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 19, 2026.
This Air Canada deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 7/16![Air Canada logo]()
$919
This FlightHub deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 7/16![Multiple Airlines logo]()
$1,045
This Justfly.com deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 7/15![ANA logo]()
$1,102
This Delta deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” 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 7/18![Delta logo]()
$1,169
This Cathay Pacific deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” 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.
Wed 8/199:32 am
STL
- NRT
2 stops38h 08m
Cathay Pacific
Wed 8/2610:00 pm
NRT
- STL
2 stops38h 41m
Cathay Pacific
Deal found 7/18![Cathay Pacific logo]()
$1,207
This United Airlines deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” 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 8/197:00 am
STL
- NRT
1 stop17h 30m
United Airlines
Wed 8/265:25 pm
NRT
- STL
1 stop20h 13m
United Airlines
Deal found 7/18![United Airlines logo]()
$1,210
This Air Canada deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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 9/1812:10 pm
STL
- KIX
2 stops38h 15m
Air Canada
Tue 9/226:00 pm
KIX
- STL
2 stops38h 41m
Air Canada
Deal found 7/14![Air Canada logo]()
$999
This Qatar Airways deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” 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.
Mon 8/319:44 am
STL
- TAK
3 stops57h 21m
Qatar Airways
Mon 9/75:20 pm
TAK
- STL
3 stops44h 22m
Qatar Airways
Deal found 7/17![Qatar Airways logo]()
$2,053
This FlightHub deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 8/198:55 am
STL
- ITM
2 stops19h 15m
Multiple Airlines
Tue 9/292:35 pm
ITM
- STL
2 stops19h 45m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$1,081
This Japan Airlines deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 9/136:00 am
STL
- TAK
2 stops36h 55m
Japan Airlines
Thu 9/1711:45 am
TAK
- STL
2 stops43h 03m
Japan Airlines
Deal found 7/15![Japan Airlines logo]()
$2,173
This Air Canada deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” 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 7/18![Air Canada logo]()
$1,000
This FlightHub deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 8/198:55 am
STL
- ITM
2 stops19h 15m
Multiple Airlines
Mon 9/2812:50 pm
ITM
- STL
2 stops21h 30m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$1,081
This Delta deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” 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 8/47:00 am
STL
- HND
1 stop17h 15m
Delta
Thu 8/134:05 pm
HND
- STL
1 stop21h 21m
Delta
Deal found 7/19![Delta logo]()
$1,210
This United Airlines deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” 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 8/45:10 am
STL
- HND
2 stops18h 45m
United Airlines
Thu 8/133:50 pm
HND
- STL
2 stops18h 56m
United Airlines
Deal found 7/17![United Airlines logo]()
$1,215
This KAYAK deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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.
Mon 8/179:30 am
STL
- ITM
2 stops20h 45m
ANA
Fri 9/258:00 am
ITM
- STL
2 stops18h 13m
ANA
Deal found 7/16![ANA logo]()
$1,239
This FlightHub deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” 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 9/208:55 am
STL
- ITM
2 stops20h 00m
Air Canada
Sat 9/263:00 pm
ITM
- STL
2 stops37h 00m
Air Canada
Deal found 7/18![Air Canada logo]()
$1,048
This Cathay Pacific deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” 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 9/66:45 pm
STL
- NRT
2 stops31h 10m
Cathay Pacific
Sun 9/133:45 pm
NRT
- STL
3 stops45h 58m
Cathay Pacific
Deal found 7/18![Cathay Pacific logo]()
$1,272
This FlightHub deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 8/188:55 am
STL
- ITM
2 stops19h 15m
Multiple Airlines
Sun 9/2711:25 am
ITM
- STL
2 stops22h 55m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$1,091
This Delta deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 7/15![Delta logo]()
$1,215
This United Airlines deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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
- HND
2 stops18h 45m
United Airlines
Wed 8/1210:40 am
HND
- STL
1 stop15h 22m
United Airlines
Deal found 7/14![United Airlines logo]()
$1,215
This KAYAK deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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 8/49:20 am
STL
- ITM
2 stops19h 35m
ANA
Tue 8/115:40 pm
ITM
- STL
2 stops32h 22m
ANA
Deal found 7/14![ANA logo]()
$1,239
This Cathay Pacific deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 10/57:10 pm
STL
- NRT
2 stops29h 20m
Cathay Pacific
Mon 10/193:45 pm
NRT
- STL
3 stops40h 31m
Cathay Pacific
Deal found 7/16![Cathay Pacific logo]()
$1,297
This United Airlines deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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
- NRT
2 stops21h 20m
United Airlines
Wed 8/125:00 pm
NRT
- STL
1 stop19h 59m
United Airlines
Deal found 7/14![United Airlines logo]()
$1,215
This Cathay Pacific deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 7/16![Multiple Airlines logo]()
$1,161
This Air Canada deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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 9/132:40 pm
STL
- OKJ
2 stops38h 30m
Air Canada
Thu 9/172:15 pm
OKJ
- STL
2 stops37h 45m
Air Canada
Deal found 7/14![Air Canada logo]()
$1,173
This Cathay Pacific deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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.
Wed 10/71:06 pm
STL
- NRT
2 stops35h 24m
Cathay Pacific
Mon 10/193:45 pm
NRT
- STL
3 stops40h 31m
Cathay Pacific
Deal found 7/16![Cathay Pacific logo]()
$1,297
This United Airlines deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:15 am
STL
- HND
2 stops22h 45m
United Airlines
Fri 10/96:10 pm
HND
- STL
2 stops30h 38m
United Airlines
Deal found 7/17![United Airlines logo]()
$1,231
This Cathay Pacific deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” 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.
Wed 8/199:32 am
STL
- HND
2 stops38h 23m
Multiple Airlines
Wed 8/2610:05 am
HND
- STL
2 stops27h 37m
Multiple Airlines
Deal found 7/17![Multiple Airlines logo]()
$1,175
This Air Canada deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 8/218:55 am
STL
- ITM
2 stops19h 15m
Air Canada
Thu 10/13:00 pm
ITM
- STL
2 stops19h 00m
Air Canada
Deal found 7/16![Air Canada logo]()
$1,265
This United Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:00 am
STL
- HND
2 stops23h 00m
United Airlines
Mon 10/193:50 pm
HND
- STL
1 stop16h 53m
United Airlines
Deal found 7/19![United Airlines logo]()
$1,282
Last-minute flights from St. Louis to JapanDiscover last-minute flight deals from St. Louis to Japan. Data last updated July 19, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Japan. Data last updated July 19, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 8/178:55 am
STL
- ITM
2 stops19h 15m
Multiple Airlines
Mon 9/282:00 pm
ITM
- STL
2 stops20h 20m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$1,081
This FlightHub deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 8/178:55 am
STL
- ITM
2 stops19h 15m
Multiple Airlines
Sun 9/2712:25 pm
ITM
- STL
2 stops21h 55m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$1,091
This Air Canada deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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
- KIX
2 stops38h 15m
Air Canada
Mon 9/286:00 pm
KIX
- STL
2 stops34h 00m
Air Canada
Deal found 7/16![Air Canada logo]()
$980
This Air Canada deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 8/188:55 am
STL
- KIX
1 stop17h 30m
Air Canada
Tue 9/296:00 pm
KIX
- STL
2 stops34h 00m
Air Canada
Deal found 7/16![Air Canada logo]()
$985
This FlightHub deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 8/188:55 am
STL
- KIX
1 stop17h 30m
Air Canada
Sun 9/276:00 pm
KIX
- STL
1 stop16h 20m
Air Canada
Deal found 7/16![Air Canada logo]()
$1,035
This Air Canada deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 8/188:55 am
STL
- ITM
2 stops19h 15m
Air Canada
Mon 9/282:00 pm
ITM
- STL
2 stops38h 00m
Air Canada
Deal found 7/16![Air Canada logo]()
$1,051
This Air Canada deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 8/202:40 pm
STL
- KIX
2 stops35h 45m
Air Canada
Mon 9/286:00 pm
KIX
- STL
2 stops34h 00m
Air Canada
Deal found 7/16![Air Canada logo]()
$1,046
This Air Canada deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 8/208:55 am
STL
- KIX
2 stops41h 30m
Air Canada
Sat 9/266:00 pm
KIX
- STL
2 stops34h 00m
Air Canada
Deal found 7/16![Air Canada logo]()
$1,057
This Air Canada deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 8/2512:10 pm
STL
- NRT
1 stop37h 15m
Air Canada
Tue 9/85:50 pm
NRT
- STL
2 stops32h 07m
Air Canada
Deal found 7/15![Air Canada logo]()
$969
This Orbitz deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 8/258:55 am
STL
- HND
2 stops23h 25m
Multiple Airlines
Tue 9/86:05 pm
HND
- STL
2 stops31h 52m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$1,073
This Orbitz deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 8/258:55 am
STL
- HND
1 stop16h 45m
Air Canada
Tue 9/86:05 pm
HND
- STL
1 stop33h 55m
Air Canada
Deal found 7/15![Air Canada logo]()
$1,080
This Air Canada deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 8/2912:10 pm
STL
- NRT
1 stop37h 15m
Air Canada
Sat 9/55:35 pm
NRT
- STL
1 stop39h 07m
Air Canada
Deal found 7/15![Air Canada logo]()
$993
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 19, 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 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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 8/58:08 pm
STL
- NRT
2 stops52h 02m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$366
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 8/88:08 pm
STL
- NRT
2 stops28h 02m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$389
This Kiwi.com deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” 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 8/216:17 pm
STL
- NRT
2 stops30h 08m
Multiple Airlines
Deal found 7/18![Multiple Airlines logo]()
$392
This Kiwi.com deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” 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
3 stops58h 02m
Multiple Airlines
Deal found 7/17![Multiple Airlines logo]()
$411
This Kiwi.com deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” 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 8/206:17 pm
STL
- NRT
2 stops30h 08m
Multiple Airlines
Deal found 7/17![Multiple Airlines logo]()
$415
This Kiwi.com deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” 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 8/236:17 pm
STL
- NRT
2 stops30h 08m
Multiple Airlines
Deal found 7/18![Multiple Airlines logo]()
$435
This Kiwi.com deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 7/15![Multiple Airlines logo]()
$468
This Kiwi.com deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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 stops57h 30m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$494
This Kiwi.com deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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 9/1310:35 am
STL
- KIX
3 stops56h 40m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$498
This Air Canada deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” 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 8/258:55 am
STL
- HND
2 stops35h 40m
Air Canada
Deal found 7/18![Air Canada logo]()
$499
This Kiwi.com deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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 9/910:35 am
STL
- KIX
3 stops56h 40m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$500
This Kiwi.com deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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 7/14![Multiple Airlines logo]()
$503
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 19, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $874 (Flightnetwork) |
One-way from | $366 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $1,356 |
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 19, 2026.
Use the filters below to find and compare flights from St. Louis to Japan that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisOsaka
STL - KIX
STLKIX
Lambert-St Louis
Tue 9/15
8:55 am-4:25 pm
1 stop17h 30m
Osaka Kansai Intl
Tue 9/22
6:00 pm-6:41 pm
2 stops38h 41m
$919
St. LouisOsaka
STL - KIX
STLKIX
Lambert-St Louis
Fri 9/18
12:10 pm-4:25 pm
2 stops38h 15m
Osaka Kansai Intl
Tue 9/22
6:00 pm-6:41 pm
2 stops38h 41m
$999
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
$1,000
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
$1,045
St. LouisOsaka
STL - ITM
STLITM
Lambert-St Louis
Sun 9/20
8:55 am-6:55 pm
2 stops20h 00m
Osaka Itami
Sat 9/26
3:00 pm-2:00 pm
2 stops37h 00m
$1,048
St. LouisOsaka
STL - ITM
STLITM
Lambert-St Louis
Wed 8/19
8:55 am-6:10 pm
2 stops19h 15m
Osaka Itami
Tue 9/29
2:35 pm-8:20 pm
2 stops19h 45m
$1,081
St. LouisOsaka
STL - ITM
STLITM
Lambert-St Louis
Wed 8/19
8:55 am-6:10 pm
2 stops19h 15m
Osaka Itami
Mon 9/28
12:50 pm-8:20 pm
2 stops21h 30m
$1,081
St. LouisOsaka
STL - ITM
STLITM
Lambert-St Louis
Tue 8/18
8:55 am-6:10 pm
2 stops19h 15m
Osaka Itami
Sun 9/27
11:25 am-8:20 pm
2 stops22h 55m
$1,091
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
$1,102
St. LouisOsaka
STL - KIX
STLKIX
Lambert-St Louis
Tue 9/15
5:00 pm-2:50 pm
3 stops31h 50m
Osaka Kansai Intl
Tue 9/22
9:45 am-11:43 pm
2 stops27h 58m
$1,161
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-KIX
STL-HND
STL-ITM
STL-TAK
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-KIX
STL-HND
STL-ITM
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 July 19, 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
Food
7.7
Overall
8.3
Crew
8.7
Comfort
8.2
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Boarding
8.4
Food
7.7
Overall
8.3
Crew
8.7
Comfort
8.2
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Boarding
8.4
Food
7.7
Overall
8.3
Crew
8.7
Comfort
8.2
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Boarding
8.4
Food
7.7
Overall
8.3
Crew
8.7
Comfort
8.2
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Boarding
8.4
Food
7.7
Overall
8.3
Crew
8.7
Comfort
8.2
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Boarding
8.4
Food
7.7
Overall
8.3
Crew
8.7
Comfort
8.2
Entertainment
7.8
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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Find flights from St. Louis to Japan, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Japan flights
Browse other St. Louis and Japan flight options. Last updated on July 19, 2026.
Popular flight searches
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St. Louis to Japan flights
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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 July 19, 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$1,148 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$739 | Average$1,097 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$785 | Average$1,158 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$846 | Average$1,264 | FlexibilityNo cancel fee | On-time79% |