$377+ 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
Jun 25 — Jul 21
Round-trip
1 adult, Economy
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1. Tell us where you want to go
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 May 26, 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 26, 2026.
This Air Canada deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 5/25![Air Canada logo]()
$963
This Air Canada deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1412:10 pm
STL
- NRT
1 stop37h 15m
Air Canada
Mon 9/285:25 pm
NRT
- STL
1 stop34h 35m
Air Canada
Deal found 5/26![Air Canada logo]()
$965
This Air Canada deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/78:55 am
STL
- NRT
1 stop16h 55m
Air Canada
Mon 9/285:25 pm
NRT
- STL
1 stop34h 35m
Air Canada
Deal found 5/26![Air Canada logo]()
$970
This Air Canada deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/612:10 pm
STL
- NRT
1 stop37h 15m
Air Canada
Sun 9/135:50 pm
NRT
- STL
1 stop38h 51m
Air Canada
Deal found 5/26![Air Canada logo]()
$1,000
This FlightHub deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/78:55 am
STL
- NRT
1 stop16h 55m
Air Canada
Mon 9/145:50 pm
NRT
- STL
2 stops35h 48m
Air Canada
Deal found 5/26![Air Canada logo]()
$1,002
This Air Canada deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/612:10 pm
STL
- KIX
2 stops38h 15m
Air Canada
Thu 9/106:00 pm
KIX
- STL
2 stops38h 41m
Air Canada
Deal found 5/25![Air Canada logo]()
$1,013
This Justfly.com deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1812:10 pm
STL
- NRT
1 stop37h 15m
Air Canada
Tue 9/225:50 pm
NRT
- STL
2 stops34h 10m
Air Canada
Deal found 5/26![Air Canada logo]()
$1,019
This Justfly.com deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/228:55 am
STL
- HND
2 stops35h 40m
Air Canada
Wed 10/76:05 pm
HND
- STL
2 stops32h 08m
Air Canada
Deal found 5/26![Air Canada logo]()
$1,022
This Air Canada deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/52:40 pm
STL
- NRT
2 stops34h 45m
Air Canada
Mon 10/194:50 pm
NRT
- STL
2 stops35h 10m
Air Canada
Deal found 5/26![Air Canada logo]()
$1,024
This Air Canada deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2212:10 pm
STL
- NRT
1 stop37h 15m
Air Canada
Sat 9/55:35 pm
NRT
- STL
2 stops30h 37m
Air Canada
Deal found 5/26![Air Canada logo]()
$1,026
This Air Canada deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 10/172:40 pm
STL
- NRT
2 stops34h 15m
Air Canada
Thu 10/296:15 pm
NRT
- STL
2 stops35h 15m
Air Canada
Deal found 5/25![Air Canada logo]()
$1,034
This FlightHub deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 10/62:40 pm
STL
- NRT
2 stops34h 45m
Air Canada
Tue 10/205:50 pm
NRT
- STL
1 stop38h 51m
Air Canada
Deal found 5/25![Air Canada logo]()
$1,043
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 26, 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 26, 2026.
This Air Canada deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 5/25![Air Canada logo]()
$968
This United Airlines deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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 stop30h 31m
United Airlines
Tue 9/112:30 am
HND
- STL
2 stops22h 09m
United Airlines
Deal found 5/22![United Airlines logo]()
$1,082
This Delta deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” 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 9/2110:29 am
STL
- HND
1 stop15h 46m
Delta
Fri 10/24:05 pm
HND
- STL
2 stops21h 31m
Delta
Deal found 5/23![Delta logo]()
$1,178
This Ovago deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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.
Tue 9/2212:28 pm
STL
- ITM
2 stops38h 37m
ANA
Wed 10/712:55 pm
ITM
- STL
2 stops19h 43m
ANA
Deal found 5/21![ANA logo]()
$1,198
This Cathay Pacific deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” 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 9/156:51 pm
STL
- KIX
3 stops29h 59m
Multiple Airlines
Tue 9/229:45 am
KIX
- STL
2 stops26h 15m
Multiple Airlines
Deal found 5/23![Multiple Airlines logo]()
$1,212
This American Airlines deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” 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 stops22h 04m
American Airlines
Fri 8/148:20 am
ITM
- STL
2 stops22h 04m
American Airlines
Deal found 5/24![American Airlines logo]()
$1,257
This Cathay Pacific deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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 8/196:00 am
STL
- NRT
2 stops41h 40m
Cathay Pacific
Wed 8/262:50 pm
NRT
- STL
2 stops45h 35m
Cathay Pacific
Deal found 5/22![Cathay Pacific logo]()
$1,283
This Japan Airlines deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 stops34h 19m
Japan Airlines
Fri 8/281:20 pm
TAK
- STL
2 stops23h 35m
Japan Airlines
Deal found 5/21![Japan Airlines logo]()
$1,580
This Air Canada deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/612:10 pm
STL
- KIX
2 stops38h 15m
Air Canada
Thu 9/106:00 pm
KIX
- STL
2 stops38h 41m
Air Canada
Deal found 5/25![Air Canada logo]()
$1,013
This United Airlines deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 8/309:00 am
STL
- NRT
1 stop15h 30m
United Airlines
Wed 9/94:30 pm
NRT
- STL
1 stop18h 08m
United Airlines
Deal found 5/21![United Airlines logo]()
$1,088
This Qatar Airways deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” 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 10/126:30 am
STL
- FUK
3 stops59h 45m
Qatar Airways
Sat 10/244:40 pm
FUK
- STL
3 stops41h 28m
Qatar Airways
Deal found 5/23![Qatar Airways logo]()
$2,225
This Ovago deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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.
Tue 9/155:10 am
STL
- KIX
2 stops19h 40m
ANA
Tue 9/224:55 pm
KIX
- STL
1 stop36h 43m
ANA
Deal found 5/21![ANA logo]()
$1,204
This Delta deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” 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 9/55:23 pm
STL
- HND
2 stops29h 42m
Delta
Sun 9/206:25 pm
HND
- STL
2 stops30h 30m
Delta
Deal found 5/23![Delta logo]()
$1,228
This Cathay Pacific deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” 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 9/79:31 am
STL
- NRT
2 stops38h 59m
Multiple Airlines
Mon 9/149:25 am
NRT
- STL
2 stops26h 35m
Multiple Airlines
Deal found 5/23![Multiple Airlines logo]()
$1,238
This American Airlines deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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 9/35:42 am
STL
- OKA
2 stops22h 43m
American Airlines
Sun 9/2011:40 am
OKA
- STL
2 stops20h 34m
American Airlines
Deal found 5/22![American Airlines logo]()
$1,281
This Cathay Pacific deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:00 am
STL
- NRT
2 stops42h 30m
Cathay Pacific
Sun 9/132:50 pm
NRT
- STL
2 stops46h 53m
Cathay Pacific
Deal found 5/25![Cathay Pacific logo]()
$1,292
This United Airlines deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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 9/98:00 am
STL
- OKA
2 stops21h 25m
United Airlines
Fri 9/2510:55 am
OKA
- STL
2 stops21h 43m
United Airlines
Deal found 5/22![United Airlines logo]()
$1,181
This Air Canada deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 11/94:15 pm
STL
- ITM
2 stops37h 05m
Air Canada
Fri 11/133:00 pm
ITM
- STL
2 stops39h 30m
Air Canada
Deal found 5/25![Air Canada logo]()
$1,209
This BusinessClass deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/158:00 am
STL
- ITM
2 stops22h 15m
ANA
Tue 9/2211:00 am
ITM
- STL
2 stops21h 16m
ANA
Deal found 5/22![ANA logo]()
$1,223
This Delta deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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 9/77:20 am
STL
- HND
2 stops18h 55m
Delta
Mon 9/146:25 pm
HND
- STL
2 stops19h 12m
Delta
Deal found 5/22![Delta logo]()
$1,228
This Cathay Pacific deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/115:11 pm
STL
- KIX
2 stops29h 44m
Multiple Airlines
Sat 9/266:30 pm
KIX
- STL
2 stops40h 14m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$1,296
This Cathay Pacific deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” 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 9/289:46 am
STL
- NRT
2 stops31h 04m
Cathay Pacific
Tue 10/133:45 pm
NRT
- STL
3 stops44h 15m
Cathay Pacific
Deal found 5/23![Cathay Pacific logo]()
$1,299
This United Airlines deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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 9/155:10 am
STL
- KIX
2 stops19h 40m
United Airlines
Tue 9/224:55 pm
KIX
- STL
2 stops17h 43m
United Airlines
Deal found 5/22![United Airlines logo]()
$1,181
This Air Canada deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:55 am
STL
- HIJ
2 stops20h 45m
Air Canada
Mon 9/1412:35 pm
HIJ
- STL
2 stops39h 25m
Air Canada
Deal found 5/25![Air Canada logo]()
$1,245
This FlightHub deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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.
Fri 9/118:00 am
STL
- ITM
2 stops20h 55m
ANA
Sat 9/2612:50 pm
ITM
- STL
2 stops20h 51m
ANA
Deal found 5/22![ANA logo]()
$1,264
This Cathay Pacific deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” 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 9/89:31 am
STL
- NRT
2 stops38h 59m
Cathay Pacific
Sun 9/203:45 pm
NRT
- STL
3 stops44h 15m
Cathay Pacific
Deal found 5/23![Cathay Pacific logo]()
$1,299
This United Airlines deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 8/107:20 am
STL
- NRT
1 stop17h 50m
United Airlines
Mon 8/244:30 pm
NRT
- STL
2 stops31h 40m
United Airlines
Deal found 5/21![United Airlines logo]()
$1,193
This Ovago deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” 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.
Sun 9/67:36 pm
STL
- OKA
2 stops36h 54m
Multiple Airlines
Fri 9/1111:40 am
OKA
- STL
2 stops26h 19m
Multiple Airlines
Deal found 5/23![Multiple Airlines logo]()
$1,326
This FlightHub deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 9/168:50 am
STL
- OKA
2 stops20h 35m
ANA
Tue 9/228:35 pm
OKA
- STL
2 stops29h 22m
ANA
Deal found 5/21![ANA logo]()
$1,297
This Cathay Pacific deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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 8/166:00 am
STL
- NRT
2 stops41h 40m
Cathay Pacific
Sun 8/233:45 pm
NRT
- STL
3 stops45h 57m
Cathay Pacific
Deal found 5/22![Cathay Pacific logo]()
$1,307
Last-minute flights from St. Louis to JapanDiscover last-minute flight deals from St. Louis to Japan. Data last updated May 26, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Japan. Data last updated May 26, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/311:05 pm
STL
- HND
2 stops36h 35m
Air Canada
Sat 8/296:05 pm
HND
- STL
1 stop33h 57m
Air Canada
Deal found 5/24![Air Canada logo]()
$1,610
This WestJet deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” 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.
Sun 6/76:21 am
STL
- NRT
2 stops43h 59m
WestJet
Wed 6/106:30 pm
NRT
- STL
2 stops29h 16m
WestJet
Deal found 5/24![WestJet logo]()
$1,694
This Air Canada deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” 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 6/71:05 pm
STL
- NRT
1 stop36h 20m
Air Canada
Wed 6/105:35 pm
NRT
- STL
1 stop16h 50m
Air Canada
Deal found 5/24![Air Canada logo]()
$1,699
This Ovago deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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.
Tue 6/91:59 pm
STL
- NRT
2 stops36h 21m
WestJet
Tue 8/116:30 pm
NRT
- STL
2 stops31h 16m
WestJet
Deal found 5/22![WestJet logo]()
$1,706
This Kiwi.com deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 6/155:36 pm
STL
- NRT
2 stops55h 04m
Multiple Airlines
Tue 7/76:00 pm
NRT
- STL
1 stop14h 57m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$1,707
This Qatar Airways deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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 6/196:35 am
STL
- NRT
2 stops40h 20m
Qatar Airways
Thu 7/210:25 pm
NRT
- STL
2 stops39h 34m
Qatar Airways
Deal found 5/22![Qatar Airways logo]()
$1,592
This Kiwi.com deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 6/2011:18 am
STL
- NRT
2 stops37h 22m
Multiple Airlines
Sat 6/277:35 pm
NRT
- STL
1 stop18h 21m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$1,684
This KAYAK deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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 6/223:30 pm
STL
- HND
1 stop28h 15m
Lufthansa
Tue 6/3011:45 am
HND
- STL
1 stop39h 40m
Lufthansa
Deal found 5/22![Lufthansa logo]()
$1,629
This Mytrip deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/222:15 pm
STL
- NRT
3 stops34h 00m
Multiple Airlines
Mon 6/293:15 pm
NRT
- STL
3 stops35h 06m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$1,679
This FlightHub deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 6/246:35 am
STL
- NRT
2 stops46h 35m
Qatar Airways
Mon 7/610:25 pm
NRT
- STL
2 stops39h 34m
Qatar Airways
Deal found 5/25![Qatar Airways logo]()
$1,507
This FlightHub deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” 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 6/243:30 pm
STL
- HND
1 stop28h 15m
Lufthansa
Mon 7/611:45 am
HND
- STL
1 stop39h 40m
Lufthansa
Deal found 5/23![Lufthansa logo]()
$1,548
This Kiwi.com deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 6/307:56 pm
STL
- NRT
2 stops51h 09m
Multiple Airlines
Tue 7/76:00 pm
NRT
- STL
1 stop19h 59m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$1,575
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 26, 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 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/288:08 pm
STL
- NRT
2 stops52h 02m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$377
This Kiwi.com deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/224:09 pm
STL
- NRT
2 stops56h 01m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$413
This Kiwi.com deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/218:08 pm
STL
- NRT
2 stops28h 02m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$435
This United Airlines deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 5/26![United Airlines logo]()
$520
This Kiwi.com deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 9/1010:35 am
STL
- NRT
2 stops38h 50m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$520
This FlightHub deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 5/25![ANA logo]()
$521
This Justfly.com deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 7/286:14 am
STL
- NRT
1 stop17h 46m
ANA
Deal found 5/25![ANA logo]()
$521
This Delta deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/216:21 am
STL
- HND
2 stops17h 59m
Delta
Deal found 5/26![Delta logo]()
$524
This United Airlines deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/216:00 am
STL
- NRT
2 stops19h 25m
United Airlines
Deal found 5/26![United Airlines logo]()
$524
This Ovago deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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 9/77:36 pm
STL
- NRT
1 stop30h 24m
Multiple Airlines
Deal found 5/22![Multiple Airlines logo]()
$538
This Kiwi.com deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 7/258:08 pm
STL
- NRT
3 stops52h 17m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$555
This Kiwi.com deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 9/86:58 pm
STL
- NRT
3 stops59h 02m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$564
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 26, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $962 (Air Canada) |
One-way from | $377 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $1,236 |
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 26, 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
$968
St. LouisOsaka
STL - KIX
STLKIX
Lambert-St Louis
Sun 9/6
12:10 pm-4:25 pm
2 stops38h 15m
Osaka Kansai Intl
Thu 9/10
6:00 pm-6:41 pm
2 stops38h 41m
$1,013
St. LouisTokyo
STL - HND
STLHND
Lambert-St Louis
Sun 8/30
6:54 pm-3:25 pm
1 stop30h 31m
Tokyo Haneda
Tue 9/1
12:30 am-8:39 am
2 stops22h 09m
$1,082
Quickest round-trip
St. LouisTokyo
STL - NRT
STLNRT
Lambert-St Louis
Sun 8/30
9:00 am-2:30 pm
1 stop15h 30m
Tokyo Narita
Wed 9/9
4:30 pm-8:38 pm
1 stop18h 08m
$1,088
St. LouisTokyo
STL - HND
STLHND
Lambert-St Louis
Mon 9/21
10:29 am-4:15 pm
1 stop15h 46m
Tokyo Haneda
Fri 10/2
4:05 pm-11:36 pm
2 stops21h 31m
$1,178
St. LouisOkinawa
STL - OKA
STLOKA
Lambert-St Louis
Wed 9/9
8:00 am-7:25 pm
2 stops21h 25m
Okinawa Naha
Fri 9/25
10:55 am-6:38 pm
2 stops21h 43m
$1,181
St. LouisOsaka
STL - KIX
STLKIX
Lambert-St Louis
Tue 9/15
5:10 am-2:50 pm
2 stops19h 40m
Osaka Kansai Intl
Tue 9/22
4:55 pm-8:38 pm
2 stops17h 43m
$1,181
St. LouisTokyo
STL - NRT
STLNRT
Lambert-St Louis
Mon 8/10
7:20 am-3:10 pm
1 stop17h 50m
Tokyo Narita
Mon 8/24
4:30 pm-10:10 am
2 stops31h 40m
$1,193
St. LouisOsaka
STL - ITM
STLITM
Lambert-St Louis
Tue 9/22
12:28 pm-5:05 pm
2 stops38h 37m
Osaka Itami
Wed 10/7
12:55 pm-6:38 pm
2 stops19h 43m
$1,198
St. LouisOsaka
STL - KIX
STLKIX
Lambert-St Louis
Tue 9/15
5:10 am-2:50 pm
2 stops19h 40m
Osaka Kansai Intl
Tue 9/22
4:55 pm-3:38 pm
1 stop36h 43m
$1,204
Showing 1-10 of 51 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-HND
STL-NRT
STL-KIX
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-HND
STL-NRT
STL-KIX
STL-ITM
What is the cheapest month to book a flight from St. Louis to Japan?
Currently, March is the cheapest month in which you can book a flight from St. Louis to Japan (average of $349). Flying from St. Louis to Japan in 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 May 26, 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
Crew
8.7
Food
7.7
Comfort
8.2
Boarding
8.4
Overall
8.3
Reviews
1 / 20
10.0
ExcellentAnonymous,Nov 2025
BKK - NRT
Entertainment
7.8
Crew
8.7
Food
7.7
Comfort
8.2
Boarding
8.4
Overall
8.3
Reviews
1 / 20
10.0
ExcellentAnonymous,Nov 2025
BKK - NRT
Entertainment
7.8
Crew
8.7
Food
7.7
Comfort
8.2
Boarding
8.4
Overall
8.3
Reviews
1 / 20
10.0
ExcellentAnonymous,Nov 2025
BKK - NRT
Entertainment
7.8
Crew
8.7
Food
7.7
Comfort
8.2
Boarding
8.4
Overall
8.3
Reviews
1 / 20
10.0
ExcellentAnonymous,Nov 2025
BKK - NRT
Entertainment
7.8
Crew
8.7
Food
7.7
Comfort
8.2
Boarding
8.4
Overall
8.3
Reviews
1 / 20
10.0
ExcellentAnonymous,Nov 2025
BKK - NRT
Entertainment
7.8
Crew
8.7
Food
7.7
Comfort
8.2
Boarding
8.4
Overall
8.3
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
Complete your trip to Japan by adding a car rental and/or hotel reservation to your travel itinerary.
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St. Louis and Japan flights
Browse other St. Louis and Japan flight options. Last updated on May 26, 2026.
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St. Louis to Japan flights
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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 May 26, 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$1,002 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$747 | Average$1,114 | 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% |