$520+ 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 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FUK
Jul 17 — Jul 241
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Japan with Cheapflights
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Cheapest flights from St. Louis to JapanExplore the most affordable flight options available from St. Louis to Japan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 17, 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 June 17, 2026.
This FlightHub deal was found by Cheapflights users on 6/12. 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.
Tue 9/158:00 am
STL
- ITM
2 stops22h 35m
ANA
Tue 9/2212:50 pm
ITM
- STL
2 stops19h 26m
ANA
Deal found 6/12![ANA logo]()
$888
This FlightHub deal was found by Cheapflights users on 6/12. 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.
Tue 9/18:50 am
STL
- HND
1 stop16h 35m
ANA
Wed 9/235:15 pm
HND
- STL
1 stop15h 01m
ANA
Deal found 6/12![ANA logo]()
$890
This FlightHub deal was found by Cheapflights users on 6/15. 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 8/3112:59 pm
STL
- HND
1 stop36h 26m
ANA
Wed 9/910:40 am
HND
- STL
1 stop15h 17m
ANA
Deal found 6/15![ANA logo]()
$895
This Justfly.com deal was found by Cheapflights users on 6/12. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/286:15 am
STL
- NRT
1 stop17h 45m
ANA
Tue 10/135:00 pm
NRT
- STL
1 stop33h 13m
ANA
Deal found 6/12![ANA logo]()
$896
This American Airlines deal was found by Cheapflights users on 6/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:00 am
STL
- HND
1 stop17h 20m
American Airlines
Wed 9/2311:55 am
HND
- STL
1 stop25h 45m
American Airlines
Deal found 6/14![American Airlines logo]()
$897
This Delta deal was found by Cheapflights users on 6/15. 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.
Tue 9/16:00 am
STL
- HND
1 stop18h 15m
Delta
Fri 9/114:05 pm
HND
- STL
1 stop14h 42m
Delta
Deal found 6/15![Delta logo]()
$898
This United Airlines deal was found by Cheapflights users on 6/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:00 am
STL
- NRT
1 stop17h 10m
United Airlines
Tue 9/85:00 pm
NRT
- STL
1 stop19h 00m
United Airlines
Deal found 6/15![United Airlines logo]()
$898
This American Airlines deal was found by Cheapflights users on 6/12. 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 9/15:42 am
STL
- HND
2 stops20h 08m
American Airlines
Wed 9/2311:55 am
HND
- STL
2 stops18h 45m
American Airlines
Deal found 6/12![American Airlines logo]()
$901
This United Airlines deal was found by Cheapflights users on 6/12. 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 9/224:40 pm
STL
- HND
2 stops21h 45m
United Airlines
Wed 10/73:50 pm
HND
- STL
2 stops20h 40m
United Airlines
Deal found 6/12![United Airlines logo]()
$903
This United Airlines deal was found by Cheapflights users on 6/12. 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 9/225:30 pm
STL
- NRT
2 stops31h 15m
United Airlines
Wed 10/75:05 pm
NRT
- STL
1 stop15h 38m
United Airlines
Deal found 6/12![United Airlines logo]()
$903
This United Airlines deal was found by Cheapflights users on 6/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/18:15 pm
STL
- HND
1 stop33h 50m
United Airlines
Thu 11/1210:25 am
HND
- STL
1 stop20h 13m
United Airlines
Deal found 6/16![United Airlines logo]()
$904
This American Airlines deal was found by Cheapflights users on 6/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:13 pm
STL
- NRT
1 stop30h 27m
American Airlines
Thu 11/125:30 pm
NRT
- STL
1 stop19h 59m
American Airlines
Deal found 6/16![American Airlines logo]()
$904
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 June 17, 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 June 17, 2026.
This United Airlines deal was found by Cheapflights users on 6/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:10 am
STL
- KIX
2 stops19h 40m
United Airlines
Thu 9/109:20 am
KIX
- STL
2 stops21h 14m
United Airlines
Deal found 6/15![United Airlines logo]()
$909
This FlightHub deal was found by Cheapflights users on 6/15. 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 8/319:30 am
STL
- ITM
2 stops18h 40m
ANA
Wed 9/97:30 am
ITM
- STL
2 stops18h 27m
ANA
Deal found 6/15![ANA logo]()
$983
This Delta deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” 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
2 stops20h 15m
Delta
Mon 9/146:25 pm
HND
- STL
2 stops19h 11m
Delta
Deal found 6/13![Delta logo]()
$1,003
This American Airlines deal was found by Cheapflights users on 6/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/305:43 am
STL
- HND
2 stops20h 07m
American Airlines
Mon 10/121:00 pm
HND
- STL
1 stop24h 25m
American Airlines
Deal found 6/16![American Airlines logo]()
$1,235
This Alaska Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” 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.
Tue 8/45:37 pm
STL
- NRT
2 stops32h 23m
Multiple Airlines
Tue 8/116:00 pm
NRT
- STL
1 stop19h 59m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$1,254
This Japan Airlines deal was found by Cheapflights users on 6/15. 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.
Fri 8/286:00 am
STL
- KIX
1 stop22h 45m
Japan Airlines
Fri 9/115:45 pm
KIX
- STL
1 stop19h 55m
Japan Airlines
Deal found 6/15![Japan Airlines logo]()
$1,301
This Cathay Pacific deal was found by Cheapflights users on 6/12. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1411:01 am
STL
- KIX
3 stops37h 49m
Cathay Pacific
Sun 9/204:15 pm
KIX
- STL
3 stops45h 28m
Cathay Pacific
Deal found 6/12![Cathay Pacific logo]()
$1,402
This Justfly.com deal was found by Cheapflights users on 6/15. 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.
Mon 8/318:55 am
STL
- ITM
2 stops19h 15m
Air Canada
Mon 9/712:50 pm
ITM
- STL
2 stops21h 17m
Air Canada
Deal found 6/15![Air Canada logo]()
$1,824
This United Airlines deal was found by Cheapflights users on 6/12. 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 9/194:40 pm
STL
- HND
2 stops36h 20m
United Airlines
Sat 10/310:25 am
HND
- STL
1 stop23h 51m
United Airlines
Deal found 6/12![United Airlines logo]()
$998
This Delta deal was found by Cheapflights users on 6/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:00 am
STL
- HND
2 stops19h 15m
Delta
Sun 9/134:05 pm
HND
- STL
2 stops21h 32m
Delta
Deal found 6/16![Delta logo]()
$1,003
This United Airlines deal was found by Cheapflights users on 6/14. 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.
Mon 9/76:00 am
STL
- NRT
1 stop19h 10m
United Airlines
Mon 9/144:30 pm
NRT
- STL
2 stops19h 06m
United Airlines
Deal found 6/14![United Airlines logo]()
$1,003
This Delta deal was found by Cheapflights users on 6/15. 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 6/15![Delta logo]()
$1,093
This United Airlines deal was found by Cheapflights users on 6/14. 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.
Sun 9/66:55 am
STL
- NRT
1 stop17h 35m
United Airlines
Sun 9/134:45 pm
NRT
- STL
2 stops18h 51m
United Airlines
Deal found 6/14![United Airlines logo]()
$1,003
This Justfly.com deal was found by Cheapflights users on 6/12. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/148:00 am
STL
- ITM
2 stops20h 55m
ANA
Sun 9/203:30 pm
ITM
- STL
2 stops34h 32m
ANA
Deal found 6/12![ANA logo]()
$1,222
This American Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” 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 7/76:37 am
STL
- ITM
2 stops22h 03m
American Airlines
Tue 7/144:20 pm
ITM
- STL
2 stops21h 39m
American Airlines
Deal found 6/13![American Airlines logo]()
$1,257
This Cathay Pacific deal was found by Cheapflights users on 6/14. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:43 pm
STL
- KIX
3 stops30h 07m
Multiple Airlines
Mon 9/149:45 am
KIX
- STL
2 stops27h 58m
Multiple Airlines
Deal found 6/14![Multiple Airlines logo]()
$1,297
This Delta deal was found by Cheapflights users on 6/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:09 pm
STL
- HND
1 stop32h 06m
Delta
Sat 9/54:05 pm
HND
- STL
1 stop14h 39m
Delta
Deal found 6/14![Delta logo]()
$1,099
This Japan Airlines deal was found by Cheapflights users on 6/12. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:00 am
STL
- KIX
1 stop22h 45m
Japan Airlines
Thu 9/105:45 pm
KIX
- STL
1 stop19h 55m
Japan Airlines
Deal found 6/12![Japan Airlines logo]()
$1,339
This Justfly.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/138:00 am
STL
- ITM
2 stops21h 10m
ANA
Sun 9/208:00 am
ITM
- STL
2 stops18h 02m
ANA
Deal found 6/13![ANA logo]()
$1,222
This American Airlines deal was found by Cheapflights users on 6/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/56:36 am
STL
- ITM
2 stops21h 09m
American Airlines
Fri 8/148:20 am
ITM
- STL
2 stops17h 55m
American Airlines
Deal found 6/14![American Airlines logo]()
$1,277
This FlightHub deal was found by Cheapflights users on 6/12. 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.
Tue 10/204:40 pm
STL
- OKA
2 stops36h 40m
Multiple Airlines
Tue 11/1710:15 am
OKA
- STL
2 stops43h 00m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,305
This United Airlines deal was found by Cheapflights users on 6/16. 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 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 6/16![United Airlines logo]()
$1,088
This CheapOair deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” 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.
Wed 8/56:00 am
STL
- ITM
2 stops23h 50m
Japan Airlines
Fri 8/147:25 am
ITM
- STL
2 stops22h 59m
Japan Airlines
Deal found 6/13![Japan Airlines logo]()
$1,341
This FlightHub deal was found by Cheapflights users on 6/16. 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 9/308:00 am
STL
- HND
1 stop23h 15m
ANA
Mon 10/1210:40 am
HND
- STL
1 stop15h 33m
ANA
Deal found 6/16![ANA logo]()
$1,224
This United Airlines deal was found by Cheapflights users on 6/12. 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.
Mon 8/318:50 am
STL
- FUK
2 stops42h 40m
United Airlines
Thu 9/312:15 pm
FUK
- STL
2 stops20h 24m
United Airlines
Deal found 6/12![United Airlines logo]()
$1,095
This Cathay Pacific deal was found by Cheapflights users on 6/12. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/145:11 pm
STL
- KIX
2 stops29h 44m
Multiple Airlines
Sun 9/204:15 pm
KIX
- STL
3 stops45h 28m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,342
This oojo deal was found by Cheapflights users on 6/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/296:55 am
STL
- HIJ
2 stops24h 20m
Japan Airlines
Wed 8/57:35 am
HIJ
- STL
2 stops22h 49m
Japan Airlines
Deal found 6/14![Japan Airlines logo]()
$1,432
This United Airlines deal was found by Cheapflights users on 6/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/318:00 am
STL
- HIJ
2 stops45h 40m
United Airlines
Fri 9/412:35 pm
HIJ
- STL
2 stops20h 36m
United Airlines
Deal found 6/15![United Airlines logo]()
$1,098
This American Airlines deal was found by Cheapflights users on 6/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/227:07 am
STL
- FUK
2 stops23h 28m
American Airlines
Wed 7/292:25 pm
FUK
- STL
2 stops23h 34m
American Airlines
Deal found 6/15![American Airlines logo]()
$1,530
This Cathay Pacific deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” 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 9/137:27 am
STL
- KIX
2 stops33h 13m
Multiple Airlines
Sun 9/204:15 pm
KIX
- STL
3 stops45h 28m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$1,392
Last-minute flights from St. Louis to JapanDiscover last-minute flight deals from St. Louis to Japan. Data last updated June 17, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Japan. Data last updated June 17, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/26:21 am
STL
- HND
1 stop16h 44m
Delta
Wed 7/86:25 pm
HND
- STL
1 stop16h 12m
Delta
Deal found 6/16![Delta logo]()
$1,188
This oojo deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” 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 7/42:35 pm
STL
- HND
1 stop36h 55m
Japan Airlines
Mon 7/68:40 pm
HND
- STL
2 stops41h 19m
Japan Airlines
Deal found 6/13![Japan Airlines logo]()
$1,214
This Delta deal was found by Cheapflights users on 6/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/710:19 am
STL
- HND
1 stop15h 56m
Delta
Wed 7/156:25 pm
HND
- STL
2 stops19h 28m
Delta
Deal found 6/16![Delta logo]()
$1,238
This American Airlines deal was found by Cheapflights users on 6/12. 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.
Wed 7/86:37 am
STL
- HND
1 stop19h 13m
American Airlines
Wed 7/227:45 pm
HND
- STL
1 stop18h 14m
American Airlines
Deal found 6/12![American Airlines logo]()
$1,247
This American Airlines deal was found by Cheapflights users on 6/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/127:07 am
STL
- HND
1 stop17h 13m
American Airlines
Sun 7/197:45 pm
HND
- STL
1 stop18h 14m
American Airlines
Deal found 6/16![American Airlines logo]()
$1,187
This American Airlines deal was found by Cheapflights users on 6/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/137:07 am
STL
- NRT
1 stop17h 53m
American Airlines
Mon 7/206:30 pm
NRT
- STL
1 stop19h 28m
American Airlines
Deal found 6/14![American Airlines logo]()
$1,188
This American Airlines deal was found by Cheapflights users on 6/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/137:22 pm
STL
- HND
2 stops19h 23m
American Airlines
Mon 7/207:45 pm
HND
- STL
2 stops18h 13m
American Airlines
Deal found 6/14![American Airlines logo]()
$1,191
This American Airlines deal was found by Cheapflights users on 6/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:37 am
STL
- HND
1 stop19h 13m
American Airlines
Tue 7/217:45 pm
HND
- STL
1 stop18h 14m
American Airlines
Deal found 6/16![American Airlines logo]()
$1,087
This FlightHub deal was found by Cheapflights users on 6/16. 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 7/146:55 am
STL
- NRT
1 stop16h 30m
Japan Airlines
Tue 7/219:45 am
NRT
- STL
1 stop20h 55m
Japan Airlines
Deal found 6/16![Japan Airlines logo]()
$1,228
This American Airlines deal was found by Cheapflights users on 6/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/145:32 am
STL
- NRT
1 stop19h 28m
American Airlines
Tue 7/219:45 am
NRT
- STL
1 stop20h 55m
American Airlines
Deal found 6/16![American Airlines logo]()
$1,233
This United Airlines deal was found by Cheapflights users on 6/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/268:00 am
STL
- HND
1 stop17h 25m
United Airlines
Tue 8/1812:30 am
HND
- STL
2 stops30h 04m
United Airlines
Deal found 6/16![United Airlines logo]()
$1,093
This American Airlines deal was found by Cheapflights users on 6/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/267:07 am
STL
- HND
1 stop17h 13m
American Airlines
Wed 8/194:30 pm
HND
- STL
1 stop17h 56m
American Airlines
Deal found 6/16![American Airlines logo]()
$1,225
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 June 17, 2026.
Search for one-way flight options from St. Louis to Japan. Find affordable one-way fares based on user searches. Data last updated June 17, 2026.
This United Airlines deal was found by Cheapflights users on 6/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/285:10 am
STL
- HND
2 stops23h 50m
United Airlines
Deal found 6/16![United Airlines logo]()
$520
This FlightHub deal was found by Cheapflights users on 6/16. 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 7/219:20 am
STL
- HND
1 stop16h 05m
ANA
Deal found 6/16![ANA logo]()
$521
This FlightHub deal was found by Cheapflights users on 6/16. 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 7/286:14 am
STL
- NRT
1 stop17h 46m
ANA
Deal found 6/16![ANA logo]()
$521
This Ovago deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/205:10 am
STL
- NRT
1 stop19h 30m
ANA
Deal found 6/13![ANA logo]()
$522
This Delta deal was found by Cheapflights users on 6/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/77:08 am
STL
- HND
2 stops19h 07m
Delta
Deal found 6/16![Delta logo]()
$524
This United Airlines deal was found by Cheapflights users on 6/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/217:05 pm
STL
- NRT
2 stops29h 05m
United Airlines
Deal found 6/16![United Airlines logo]()
$524
This United Airlines deal was found by Cheapflights users on 6/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/205:10 am
STL
- HIJ
3 stops48h 25m
United Airlines
Deal found 6/16![United Airlines logo]()
$525
This United deal was found by Cheapflights users on 6/16. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/208:00 am
STL
- OKJ
2 stops35h 05m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$527
This American Airlines deal was found by Cheapflights users on 6/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/157:07 am
STL
- ITM
2 stops22h 43m
American Airlines
Deal found 6/15![American Airlines logo]()
$529
This FlightHub deal was found by Cheapflights users on 6/16. 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 7/201:13 pm
STL
- OKJ
2 stops58h 22m
ANA
Deal found 6/16![ANA logo]()
$529
This Delta deal was found by Cheapflights users on 6/15. 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 7/156:58 pm
STL
- KIX
2 stops35h 47m
Delta
Deal found 6/15![Delta logo]()
$531
This Delta deal was found by Cheapflights users on 6/15. 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 7/153:58 pm
STL
- FUK
2 stops38h 02m
Delta
Deal found 6/15![Delta logo]()
$531
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 June 17, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $888 (FlightHub) |
One-way from | $520 (United Airlines) |
Popular in | June |
Cheapest in | February |
Average price | $1,383 |
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 June 17, 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
Wed 9/2
5:10 am-2:50 pm
2 stops19h 40m
Osaka Kansai Intl
Thu 9/10
9:20 am-4:34 pm
2 stops21h 14m
$909
St. LouisOsaka
STL - ITM
STLITM
Lambert-St Louis
Mon 8/31
9:30 am-6:10 pm
2 stops18h 40m
Osaka Itami
Wed 9/9
7:30 am-11:57 am
2 stops18h 27m
$983
St. LouisTokyo
STL - HND
STLHND
Lambert-St Louis
Sat 9/19
4:40 pm-7:00 pm
2 stops36h 20m
Tokyo Haneda
Sat 10/3
10:25 am-8:16 pm
1 stop23h 51m
$998
St. LouisTokyo
STL - HND
STLHND
Lambert-St Louis
Mon 9/7
6:00 am-4:15 pm
2 stops20h 15m
Tokyo Haneda
Mon 9/14
6:25 pm-11:36 pm
2 stops19h 11m
$1,003
St. LouisTokyo
STL - HND
STLHND
Lambert-St Louis
Sun 9/6
7:00 am-4:15 pm
2 stops19h 15m
Tokyo Haneda
Sun 9/13
4:05 pm-11:37 pm
2 stops21h 32m
$1,003
St. LouisTokyo
STL - NRT
STLNRT
Lambert-St Louis
Mon 9/7
6:00 am-3:10 pm
1 stop19h 10m
Tokyo Narita
Mon 9/14
4:30 pm-9:36 pm
2 stops19h 06m
$1,003
Quickest round-trip
St. LouisTokyo
STL - NRT
STLNRT
Lambert-St Louis
Sun 9/6
6:55 am-2:30 pm
1 stop17h 35m
Tokyo Narita
Sun 9/13
4:45 pm-9:36 pm
2 stops18h 51m
$1,003
St. LouisTokyo
STL - NRT
STLNRT
Lambert-St Louis
Wed 8/19
7:00 am-2:30 pm
1 stop17h 30m
Tokyo Narita
Wed 8/26
5:25 pm-11:38 pm
1 stop20h 13m
$1,088
St. LouisTokyo
STL - HND
STLHND
Lambert-St Louis
Wed 8/19
6:00 am-4:15 pm
2 stops20h 15m
Tokyo Haneda
Wed 8/26
4:35 pm-12:41 am
2 stops22h 06m
$1,093
St. LouisFukuoka
STL - FUK
STLFUK
Lambert-St Louis
Mon 8/31
8:50 am-5:30 pm
2 stops42h 40m
Fukuoka
Thu 9/3
12:15 pm-6:39 pm
2 stops20h 24m
$1,095
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-KIX
STL-ITM
STL-HND
STL-NRT
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-KIX
STL-ITM
STL-HND
STL-NRT
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 January is currently the most expensive (average of $616). 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 June 17, 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
Boarding
8.4
Comfort
8.2
Overall
8.3
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Nov 2025
BKK - NRT
Entertainment
7.8
Food
7.7
Boarding
8.4
Comfort
8.2
Overall
8.3
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Nov 2025
BKK - NRT
Entertainment
7.8
Food
7.7
Boarding
8.4
Comfort
8.2
Overall
8.3
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Nov 2025
BKK - NRT
Entertainment
7.8
Food
7.7
Boarding
8.4
Comfort
8.2
Overall
8.3
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Nov 2025
BKK - NRT
Entertainment
7.8
Food
7.7
Boarding
8.4
Comfort
8.2
Overall
8.3
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Nov 2025
BKK - NRT
Entertainment
7.8
Food
7.7
Boarding
8.4
Comfort
8.2
Overall
8.3
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Nov 2025
BKK - NRT
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Japan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for St. Louis to Japan
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Complete your trip
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St. Louis and Japan flights
Browse other St. Louis and Japan flight options. Last updated on June 17, 2026.
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Fly to Japan regions
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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 June 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$593 | Average$1,161 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$667 | Average$1,171 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$703 | Average$1,188 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$708 | Average$1,145 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$739 | Average$1,091 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$846 | Average$1,208 | FlexibilityNo cancel fee | On-time79% |