$501+ 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 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FUK
Jun 18 — Jun 251
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 May 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 May 19, 2026.
This SmartFares deal was found by Cheapflights users on 5/18. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:00 am
STL
- NRT
1 stop20h 00m
Multiple Airlines
Fri 9/256:00 pm
NRT
- STL
1 stop19h 59m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$1,072
This United Airlines deal was found by Cheapflights users on 5/18. 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.
Sun 8/306:54 pm
STL
- HND
1 stop36h 21m
United Airlines
Wed 9/25:45 pm
HND
- STL
1 stop19h 53m
United Airlines
Deal found 5/18![United Airlines logo]()
$1,077
This FlightHub deal was found by Cheapflights users on 5/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/118:50 am
STL
- HND
1 stop16h 35m
ANA
Tue 11/36:20 pm
HND
- STL
1 stop16h 05m
ANA
Deal found 5/19![ANA logo]()
$1,080
This United Airlines deal was found by Cheapflights users on 5/19. 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 8/105:10 am
STL
- HND
2 stops23h 50m
United Airlines
Fri 11/66:25 pm
HND
- STL
1 stop20h 00m
United Airlines
Deal found 5/19![United Airlines logo]()
$1,083
This Justfly.com deal was found by Cheapflights users on 5/18. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:50 am
STL
- HND
1 stop22h 25m
ANA
Fri 8/285:15 pm
HND
- STL
1 stop32h 48m
ANA
Deal found 5/18![ANA logo]()
$1,086
This United Airlines deal was found by Cheapflights users on 5/19. 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 8/105:10 am
STL
- HND
2 stops23h 50m
United Airlines
Thu 11/57:40 pm
HND
- STL
2 stops18h 14m
United Airlines
Deal found 5/19![United Airlines logo]()
$1,087
This United Airlines deal was found by Cheapflights users on 5/18. 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.
Mon 8/246:00 am
STL
- NRT
2 stops19h 00m
United Airlines
Fri 8/285:05 pm
NRT
- STL
1 stop15h 34m
United Airlines
Deal found 5/18![United Airlines logo]()
$1,089
This FlightHub deal was found by Cheapflights users on 5/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2212:59 pm
STL
- HND
1 stop36h 26m
ANA
Tue 9/15:15 pm
HND
- STL
1 stop32h 47m
ANA
Deal found 5/19![ANA logo]()
$1,091
This United Airlines deal was found by Cheapflights users on 5/19. 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.
Wed 8/125:10 am
STL
- HND
2 stops18h 45m
United Airlines
Tue 11/36:20 pm
HND
- STL
1 stop16h 05m
United Airlines
Deal found 5/19![United Airlines logo]()
$1,092
This Delta deal was found by Cheapflights users on 5/19. 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.
Sun 8/97:00 am
STL
- HND
1 stop17h 15m
Delta
Wed 11/48:00 pm
HND
- STL
2 stops19h 36m
Delta
Deal found 5/19![Delta logo]()
$1,093
This United Airlines deal was found by Cheapflights users on 5/18. 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 8/198:42 am
STL
- NRT
1 stop16h 18m
United Airlines
Wed 8/264:45 pm
NRT
- STL
2 stops19h 15m
United Airlines
Deal found 5/18![United Airlines logo]()
$1,093
This United Airlines deal was found by Cheapflights users on 5/17. 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.
Mon 8/248:40 am
STL
- FUK
2 stops42h 50m
United Airlines
Fri 8/2812:15 pm
FUK
- STL
2 stops20h 24m
United Airlines
Deal found 5/17![United Airlines logo]()
$1,094
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 May 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 May 19, 2026.
This United Airlines deal was found by Cheapflights users on 5/16. 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 8/248:40 am
STL
- FUK
2 stops42h 50m
United Airlines
Fri 8/2812:15 pm
FUK
- STL
2 stops20h 24m
United Airlines
Deal found 5/16![United Airlines logo]()
$1,094
This oojo deal was found by Cheapflights users on 5/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/58:36 am
STL
- ITM
2 stops20h 04m
Japan Airlines
Fri 8/147:05 am
ITM
- STL
2 stops25h 05m
Japan Airlines
Deal found 5/17![Japan Airlines logo]()
$1,316
This Cathay Pacific deal was found by Cheapflights users on 5/18. 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.
Sat 8/85:11 pm
STL
- HND
2 stops38h 24m
Multiple Airlines
Sat 8/1510:05 am
HND
- STL
2 stops27h 37m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$1,414
This Delta deal was found by Cheapflights users on 5/15. 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.
Thu 7/161:22 pm
STL
- HND
2 stops33h 43m
Delta
Sat 8/154:05 pm
HND
- STL
2 stops31h 49m
Delta
Deal found 5/15![Delta logo]()
$1,419
This Cathay Pacific deal was found by Cheapflights users on 5/17. 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 8/59:31 am
STL
- KIX
3 stops39h 19m
Cathay Pacific
Fri 8/147:25 pm
KIX
- STL
2 stops42h 17m
Cathay Pacific
Deal found 5/17![Cathay Pacific logo]()
$1,427
This American Airlines deal was found by Cheapflights users on 5/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/146:35 am
STL
- ITM
2 stops22h 30m
American Airlines
Fri 6/261:30 pm
ITM
- STL
2 stops20h 06m
American Airlines
Deal found 5/18![American Airlines logo]()
$1,756
This Qatar Airways deal was found by Cheapflights users on 5/17. 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.
Wed 7/86:37 am
STL
- NRT
2 stops40h 18m
Qatar Airways
Wed 7/2210:25 pm
NRT
- STL
2 stops39h 34m
Qatar Airways
Deal found 5/17![Qatar Airways logo]()
$1,788
This KAYAK deal was found by Cheapflights users on 5/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/176:00 am
STL
- ITM
2 stops21h 05m
ANA
Thu 8/1312:50 pm
ITM
- STL
2 stops19h 49m
ANA
Deal found 5/19![ANA logo]()
$1,805
This Air Canada deal was found by Cheapflights users on 5/15. 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.
Sun 9/68:55 am
STL
- HIJ
2 stops20h 45m
Air Canada
Thu 9/1012:35 pm
HIJ
- STL
2 stops39h 25m
Air Canada
Deal found 5/15![Air Canada logo]()
$1,818
This United Airlines deal was found by Cheapflights users on 5/17. 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
- NRT
2 stops19h 00m
United Airlines
Tue 8/115:25 pm
NRT
- STL
1 stop20h 13m
United Airlines
Deal found 5/17![United Airlines logo]()
$1,364
This Cathay Pacific deal was found by Cheapflights users on 5/18. 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.
Sat 8/89:31 am
STL
- NRT
2 stops38h 59m
Cathay Pacific
Sat 8/1510:00 pm
NRT
- STL
2 stops38h 25m
Cathay Pacific
Deal found 5/18![Cathay Pacific logo]()
$1,458
This United Airlines deal was found by Cheapflights users on 5/17. 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
Tue 8/115:45 pm
HND
- STL
1 stop19h 53m
United Airlines
Deal found 5/17![United Airlines logo]()
$1,403
This Japan Airlines deal was found by Cheapflights users on 5/14. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:00 am
STL
- TAK
2 stops25h 30m
Japan Airlines
Fri 9/41:10 pm
TAK
- STL
2 stops23h 45m
Japan Airlines
Deal found 5/14![Japan Airlines logo]()
$1,581
This EVA Air deal was found by Cheapflights users on 5/16. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/64:40 pm
STL
- FUK
2 stops28h 40m
Multiple Airlines
Tue 10/137:20 pm
FUK
- STL
3 stops33h 00m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$1,624
This United Airlines deal was found by Cheapflights users on 5/16. 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
- HND
2 stops19h 55m
United Airlines
Thu 7/305:45 pm
HND
- STL
1 stop19h 59m
United Airlines
Deal found 5/16![United Airlines logo]()
$1,403
This Japan Airlines deal was found by Cheapflights users on 5/18. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:36 am
STL
- TAK
2 stops21h 14m
Japan Airlines
Fri 8/281:20 pm
TAK
- STL
2 stops23h 35m
Japan Airlines
Deal found 5/18![Japan Airlines logo]()
$1,581
This Gurufare deal was found by Cheapflights users on 5/19. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/39:15 am
STL
- OKA
2 stops20h 10m
ANA
Fri 7/1010:15 am
OKA
- STL
2 stops23h 08m
ANA
Deal found 5/19![ANA logo]()
$1,820
This Air Canada deal was found by Cheapflights users on 5/16. 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.
Sat 9/52:40 pm
STL
- OKJ
2 stops38h 30m
Air Canada
Wed 9/92:15 pm
OKJ
- STL
2 stops37h 45m
Air Canada
Deal found 5/16![Air Canada logo]()
$1,825
This United Airlines deal was found by Cheapflights users on 5/19. 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.
Sun 7/195:33 pm
STL
- NRT
2 stops30h 37m
United Airlines
Thu 7/305:05 pm
NRT
- STL
2 stops31h 02m
United Airlines
Deal found 5/19![United Airlines logo]()
$1,404
This Gurufare deal was found by Cheapflights users on 5/18. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/39:15 am
STL
- ITM
2 stops18h 55m
ANA
Fri 7/108:00 am
ITM
- STL
2 stops18h 11m
ANA
Deal found 5/18![ANA logo]()
$1,822
This United Airlines deal was found by Cheapflights users on 5/16. 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 7/295:10 am
STL
- NRT
2 stops19h 00m
United Airlines
Wed 8/125:05 pm
NRT
- STL
2 stops33h 35m
United Airlines
Deal found 5/16![United Airlines logo]()
$1,404
This Air Canada deal was found by Cheapflights users on 5/18. 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 6/141:05 pm
STL
- KIX
2 stops37h 20m
Air Canada
Fri 6/266:00 pm
KIX
- STL
1 stop32h 21m
Air Canada
Deal found 5/18![Air Canada logo]()
$1,889
This Air Canada deal was found by Cheapflights users on 5/18. 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 9/68:55 am
STL
- FUK
2 stops20h 55m
Air Canada
Thu 9/1012:55 pm
FUK
- STL
2 stops39h 05m
Air Canada
Deal found 5/18![Air Canada logo]()
$1,889
This United Airlines deal was found by Cheapflights users on 5/17. 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.
Wed 8/198:40 am
STL
- FUK
2 stops42h 50m
United Airlines
Wed 8/2612:15 pm
FUK
- STL
3 stops41h 23m
United Airlines
Deal found 5/17![United Airlines logo]()
$1,424
This Air Canada deal was found by Cheapflights users on 5/16. 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.
Mon 6/152:15 pm
STL
- OKA
2 stops42h 35m
Multiple Airlines
Mon 6/2212:15 pm
OKA
- STL
2 stops22h 10m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$2,143
This Air Canada deal was found by Cheapflights users on 5/14. 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.
Sat 6/61:05 pm
STL
- KIX
2 stops37h 20m
Air Canada
Wed 6/176:00 pm
KIX
- STL
1 stop32h 21m
Air Canada
Deal found 5/14![Air Canada logo]()
$1,952
This United Airlines deal was found by Cheapflights users on 5/15. 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.
Sat 7/184:45 pm
STL
- HND
2 stops21h 40m
United Airlines
Fri 8/145:45 pm
HND
- STL
1 stop19h 53m
United Airlines
Deal found 5/15![United Airlines logo]()
$1,476
This Air Canada deal was found by Cheapflights users on 5/15. 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 7/612:10 pm
STL
- OKA
2 stops44h 00m
Multiple Airlines
Mon 7/2712:15 pm
OKA
- STL
2 stops39h 47m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$2,168
This Qatar Airways deal was found by Cheapflights users on 5/15. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/62:50 pm
STL
- FUK
3 stops51h 10m
Qatar Airways
Sun 11/298:05 pm
FUK
- STL
3 stops38h 22m
Qatar Airways
Deal found 5/15![Qatar Airways logo]()
$2,631
This FlightHub deal was found by Cheapflights users on 5/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/63:22 pm
STL
- OKA
2 stops41h 53m
ANA
Fri 8/712:35 pm
OKA
- STL
2 stops20h 48m
ANA
Deal found 5/17![ANA logo]()
$2,255
Last-minute flights from St. Louis to JapanDiscover last-minute flight deals from St. Louis to Japan. Data last updated May 19, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Japan. Data last updated May 19, 2026 and is based on user searches.
This EVA Air deal was found by Cheapflights users on 5/18. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/197:41 pm
STL
- NRT
2 stops27h 44m
Multiple Airlines
Tue 6/28:40 pm
NRT
- STL
2 stops35h 20m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$1,578
This Qatar Airways deal was found by Cheapflights users on 5/14. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/247:41 pm
STL
- NRT
2 stops58h 19m
Qatar Airways
Tue 6/210:25 pm
NRT
- STL
2 stops39h 29m
Qatar Airways
Deal found 5/14![Qatar Airways logo]()
$1,534
This Air Canada deal was found by Cheapflights users on 5/18. 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.
Mon 5/257:05 am
STL
- NRT
1 stop18h 45m
Air Canada
Mon 6/15:25 pm
NRT
- STL
1 stop32h 41m
Air Canada
Deal found 5/18![Air Canada logo]()
$1,690
This FlightHub deal was found by Cheapflights users on 5/16. 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.
Sun 5/316:45 am
STL
- NRT
2 stops43h 35m
WestJet
Sun 6/76:30 pm
NRT
- STL
2 stops40h 09m
WestJet
Deal found 5/16![WestJet logo]()
$1,614
This Kiwi.com deal was found by Cheapflights users on 5/15. 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.
Mon 6/16:21 am
STL
- NRT
2 stops40h 19m
Multiple Airlines
Mon 6/86:00 pm
NRT
- STL
1 stop19h 54m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$1,691
This WestJet deal was found by Cheapflights users on 5/18. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/86:10 pm
STL
- NRT
2 stops56h 10m
WestJet
Mon 6/296:30 pm
NRT
- STL
2 stops37h 37m
WestJet
Deal found 5/18![WestJet logo]()
$1,620
This FlightHub deal was found by Cheapflights users on 5/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/146:00 am
STL
- NRT
2 stops44h 20m
WestJet
Sun 6/216:30 pm
NRT
- STL
2 stops41h 48m
WestJet
Deal found 5/17![WestJet logo]()
$1,683
This FlightHub deal was found by Cheapflights users on 5/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/163:30 pm
STL
- HND
1 stop28h 15m
Lufthansa
Thu 6/2511:45 am
HND
- STL
1 stop39h 40m
Lufthansa
Deal found 5/19![Lufthansa logo]()
$1,623
This KAYAK deal was found by Cheapflights users on 5/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/163:30 pm
STL
- HND
1 stop28h 15m
Lufthansa
Mon 6/2911:45 am
HND
- STL
1 stop39h 40m
Lufthansa
Deal found 5/19![Lufthansa logo]()
$1,629
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/163:57 pm
STL
- NRT
2 stops32h 43m
Multiple Airlines
Tue 6/236:00 pm
NRT
- STL
1 stop19h 59m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$1,687
This Travelocity deal was found by Cheapflights users on 5/15. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/292:15 pm
STL
- NRT
2 stops35h 10m
Air Canada
Sat 8/15:25 pm
NRT
- STL
2 stops32h 46m
Air Canada
Deal found 5/15![Air Canada logo]()
$1,535
This Kiwi.com deal was found by Cheapflights users on 5/18. 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.
Mon 6/292:56 pm
STL
- NRT
2 stops39h 04m
Multiple Airlines
Wed 7/86:00 pm
NRT
- STL
1 stop19h 59m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$1,663
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 May 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 May 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/16. 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.
Tue 7/216:33 pm
STL
- NRT
2 stops29h 52m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$501
This United Airlines deal was found by Cheapflights users on 5/16. 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 5/16![United Airlines logo]()
$520
This FlightHub deal was found by Cheapflights users on 5/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/219:15 am
STL
- HND
1 stop16h 10m
ANA
Deal found 5/19![ANA logo]()
$521
This FlightHub deal was found by Cheapflights users on 5/19. 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 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 5/19![ANA logo]()
$521
This Delta deal was found by Cheapflights users on 5/18. 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.
Tue 7/217:55 pm
STL
- HND
2 stops28h 05m
Delta
Deal found 5/18![Delta logo]()
$524
This United Airlines deal was found by Cheapflights users on 5/18. 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.
Tue 7/215:10 am
STL
- NRT
2 stops19h 50m
United Airlines
Deal found 5/18![United Airlines logo]()
$524
This American Airlines deal was found by Cheapflights users on 5/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:00 am
STL
- HND
1 stop19h 50m
American Airlines
Deal found 5/19![American Airlines logo]()
$574
This American Airlines deal was found by Cheapflights users on 5/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/146:42 am
STL
- OKA
2 stops25h 48m
American Airlines
Deal found 5/18![American Airlines logo]()
$578
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 8/144:52 pm
STL
- OKA
3 stops58h 43m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$586
This oojo deal was found by Cheapflights users on 5/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:00 am
STL
- HND
1 stop21h 30m
Japan Airlines
Deal found 5/19![Japan Airlines logo]()
$594
This Kiwi.com deal was found by Cheapflights users on 5/15. 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.
Sat 10/178:10 pm
STL
- HND
2 stops42h 15m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$604
This FlightHub deal was found by Cheapflights users on 5/15. 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 9/78:00 am
STL
- HND
1 stop23h 15m
ANA
Deal found 5/15![ANA logo]()
$606
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 May 19, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $1,077 (United Airlines) |
One-way from | $501 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $1,235 |
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 May 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. LouisFukuoka
STL - FUK
STLFUK
Lambert-St Louis
Mon 8/24
8:40 am-5:30 pm
2 stops42h 50m
Fukuoka
Fri 8/28
12:15 pm-6:39 pm
2 stops20h 24m
$1,094
St. LouisOsaka
STL - ITM
STLITM
Lambert-St Louis
Wed 8/5
8:36 am-6:40 pm
2 stops20h 04m
Osaka Itami
Fri 8/14
7:05 am-6:10 pm
2 stops25h 05m
$1,316
St. LouisTokyo
STL - NRT
STLNRT
Lambert-St Louis
Tue 8/4
5:10 am-2:10 pm
2 stops19h 00m
Tokyo Narita
Tue 8/11
5:25 pm-11:38 pm
1 stop20h 13m
$1,364
St. LouisTokyo
STL - HND
STLHND
Lambert-St Louis
Tue 8/4
5:10 am-1:55 pm
2 stops18h 45m
Tokyo Haneda
Tue 8/11
5:45 pm-11:38 pm
1 stop19h 53m
$1,403
St. LouisTokyo
STL - HND
STLHND
Lambert-St Louis
Mon 7/20
5:10 am-3:05 pm
2 stops19h 55m
Tokyo Haneda
Thu 7/30
5:45 pm-11:44 pm
1 stop19h 59m
$1,403
St. LouisTokyo
STL - NRT
STLNRT
Lambert-St Louis
Sun 7/19
5:33 pm-2:10 pm
2 stops30h 37m
Tokyo Narita
Thu 7/30
5:05 pm-10:07 am
2 stops31h 02m
$1,404
St. LouisTokyo
STL - NRT
STLNRT
Lambert-St Louis
Wed 7/29
5:10 am-2:10 pm
2 stops19h 00m
Tokyo Narita
Wed 8/12
5:05 pm-12:40 pm
2 stops33h 35m
$1,404
St. LouisTokyo
STL - HND
STLHND
Lambert-St Louis
Sat 8/8
5:11 pm-9:35 pm
2 stops38h 24m
Tokyo Haneda
Sat 8/15
10:05 am-11:42 pm
2 stops27h 37m
$1,414
St. LouisTokyo
STL - HND
STLHND
Lambert-St Louis
Thu 7/16
1:22 pm-1:05 pm
2 stops33h 43m
Tokyo Haneda
Sat 8/15
4:05 pm-9:54 am
2 stops31h 49m
$1,419
St. LouisFukuoka
STL - FUK
STLFUK
Lambert-St Louis
Wed 8/19
8:40 am-5:30 pm
2 stops42h 50m
Fukuoka
Wed 8/26
12:15 pm-3:38 pm
3 stops41h 23m
$1,424
Showing 1-10 of 56 resultsSorted by cheapest first
Best time to book a flight from St. Louis to Japan
Have a flexible travel schedule? Discover the best time to fly to Japan from St. Louis with our price prediction graph.
STL-NRT
STL-HND
STL-OKA
STL-FUK
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-HND
STL-OKA
STL-FUK
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 69 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 May 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.
Overall
8.3
Food
7.7
Boarding
8.4
Comfort
8.2
Crew
8.7
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Nov 2025
BKK - NRT
Overall
8.3
Food
7.7
Boarding
8.4
Comfort
8.2
Crew
8.7
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Nov 2025
BKK - NRT
Overall
8.3
Food
7.7
Boarding
8.4
Comfort
8.2
Crew
8.7
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Nov 2025
BKK - NRT
Overall
8.3
Food
7.7
Boarding
8.4
Comfort
8.2
Crew
8.7
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Nov 2025
BKK - NRT
Overall
8.3
Food
7.7
Boarding
8.4
Comfort
8.2
Crew
8.7
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Nov 2025
BKK - NRT
Overall
8.3
Food
7.7
Boarding
8.4
Comfort
8.2
Crew
8.7
Entertainment
7.8
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 May 19, 2026.
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St. Louis to Japan flights
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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 May 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$593 | Average$1,161 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$629 | Average$1,114 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$733 | Average$997 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$747 | Average$1,113 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$777 | Average$1,140 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$846 | Average$1,176 | FlexibilityNo cancel fee | On-time79% |