$413+ Cheap flights from St. Louis (STL) to Japan
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FUK
Aug 25 — Sep 11
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Japan with Cheapflights
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 July 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 July 26, 2026.
This CheapOair deal was found by Cheapflights users on 7/25. 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 CheapOair 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 stops42h 59m
Air Canada
Deal found 7/25![Air Canada logo]()
$819
This Gotogate deal was found by Cheapflights users on 7/25. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1312:10 pm
STL
- NRT
2 stops36h 45m
Air Canada
Thu 9/175:50 pm
NRT
- STL
2 stops35h 48m
Air Canada
Deal found 7/25![Air Canada logo]()
$819
This FlightHub deal was found by Cheapflights users on 7/21. 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.
Sat 11/211:08 pm
STL
- NRT
2 stops36h 22m
Air Canada
Tue 11/246:45 pm
NRT
- STL
2 stops32h 21m
Air Canada
Deal found 7/21![Air Canada logo]()
$820
This Air Canada deal was found by Cheapflights users on 7/25. 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 11/216:50 pm
STL
- NRT
2 stops30h 40m
Air Canada
Tue 12/16:45 pm
NRT
- STL
2 stops34h 45m
Air Canada
Deal found 7/25![Air Canada logo]()
$823
This Air Canada deal was found by Cheapflights users on 7/25. 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 11/226:00 am
STL
- NRT
2 stops19h 40m
Air Canada
Fri 12/46:45 pm
NRT
- STL
2 stops34h 45m
Air Canada
Deal found 7/25![Air Canada logo]()
$824
This Justfly.com deal was found by Cheapflights users on 7/25. 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.
Mon 9/218:55 am
STL
- NRT
2 stops40h 30m
Air Canada
Tue 9/295:50 pm
NRT
- STL
2 stops34h 27m
Air Canada
Deal found 7/25![Air Canada logo]()
$827
This Air Canada deal was found by Cheapflights users on 7/25. 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 11/214:05 pm
STL
- NRT
2 stops33h 35m
Air Canada
Fri 12/46:45 pm
NRT
- STL
2 stops34h 45m
Air Canada
Deal found 7/25![Air Canada logo]()
$828
This Air Canada deal was found by Cheapflights users on 7/25. 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 11/224:05 pm
STL
- NRT
1 stop33h 25m
Air Canada
Thu 12/36:45 pm
NRT
- STL
2 stops35h 41m
Air Canada
Deal found 7/25![Air Canada logo]()
$835
This FlightHub deal was found by Cheapflights users on 7/25. 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 9/162:40 pm
STL
- NRT
1 stop35h 30m
Air Canada
Thu 9/245:50 pm
NRT
- STL
1 stop38h 51m
Air Canada
Deal found 7/25![Air Canada logo]()
$837
This FlightHub deal was found by Cheapflights users on 7/25. 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.
Sat 11/214:05 pm
STL
- NRT
2 stops33h 35m
Air Canada
Thu 12/36:15 pm
NRT
- STL
2 stops36h 11m
Air Canada
Deal found 7/25![Air Canada logo]()
$841
This Orbitz deal was found by Cheapflights users on 7/25. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:50 pm
STL
- NRT
2 stops54h 40m
Air Canada
Fri 12/46:45 pm
NRT
- STL
2 stops30h 56m
Air Canada
Deal found 7/25![Air Canada logo]()
$856
This FlightHub deal was found by Cheapflights users on 7/25. 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 9/162:40 pm
STL
- HND
2 stops39h 15m
Multiple Airlines
Thu 9/249:00 pm
HND
- STL
2 stops37h 20m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$857
Best flights from St. Louis to JapanDiscover carefully curated flight deals from St. Louis to Japan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 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 July 26, 2026.
This Air Canada deal was found by Cheapflights users on 7/25. 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 7/25![Air Canada logo]()
$825
This CheapOair deal was found by Cheapflights users on 7/24. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/158:55 am
STL
- ITM
2 stops20h 00m
Multiple Airlines
Tue 9/222:35 pm
ITM
- STL
2 stops19h 45m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$1,034
This KAYAK deal was found by Cheapflights users on 7/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/78:55 am
STL
- ITM
2 stops20h 00m
ANA
Thu 10/12:00 pm
ITM
- STL
2 stops20h 00m
ANA
Deal found 7/21![ANA logo]()
$1,052
This United Airlines deal was found by Cheapflights users on 7/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/38:58 am
STL
- HND
2 stops21h 12m
United Airlines
Tue 11/177:40 pm
HND
- STL
2 stops18h 29m
United Airlines
Deal found 7/23![United Airlines logo]()
$1,098
This Delta deal was found by Cheapflights users on 7/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1610:14 am
STL
- HND
1 stop16h 31m
Delta
Sat 12/55:35 pm
HND
- STL
1 stop18h 16m
Delta
Deal found 7/25![Delta logo]()
$1,164
This Cathay Pacific deal was found by Cheapflights users on 7/22. 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.
Thu 10/111:01 am
STL
- HND
2 stops36h 54m
Cathay Pacific
Thu 10/1510:05 am
HND
- STL
2 stops25h 54m
Cathay Pacific
Deal found 7/22![Cathay Pacific logo]()
$1,207
This American Airlines deal was found by Cheapflights users on 7/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:36 am
STL
- ITM
2 stops22h 29m
American Airlines
Fri 8/283:30 pm
ITM
- STL
2 stops21h 29m
American Airlines
Deal found 7/21![American Airlines logo]()
$1,319
This CheapOair deal was found by Cheapflights users on 7/22. 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 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 8/1412:25 pm
ITM
- STL
2 stops24h 34m
Japan Airlines
Deal found 7/22![Japan Airlines logo]()
$1,449
This Air Canada deal was found by Cheapflights users on 7/23. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1112:10 pm
STL
- KIX
2 stops38h 15m
Air Canada
Thu 10/297:25 pm
KIX
- STL
2 stops34h 01m
Air Canada
Deal found 7/23![Air Canada logo]()
$1,000
This United Airlines deal was found by Cheapflights users on 7/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/225:00 am
STL
- NRT
1 stop19h 00m
United Airlines
Tue 12/15:05 pm
NRT
- STL
1 stop19h 08m
United Airlines
Deal found 7/25![United Airlines logo]()
$1,108
This Cathay Pacific deal was found by Cheapflights users on 7/24. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2811:31 am
STL
- FUK
2 stops37h 49m
Multiple Airlines
Wed 11/114:30 pm
FUK
- STL
2 stops46h 03m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$1,138
This Delta deal was found by Cheapflights users on 7/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:00 am
STL
- HND
2 stops20h 15m
Delta
Wed 8/264:35 pm
HND
- STL
2 stops22h 06m
Delta
Deal found 7/25![Delta logo]()
$1,214
This Cathay Pacific deal was found by Cheapflights users on 7/22. 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 9/66:00 am
STL
- NRT
2 stops41h 40m
Cathay Pacific
Sun 9/135:15 pm
NRT
- STL
2 stops44h 28m
Cathay Pacific
Deal found 7/22![Cathay Pacific logo]()
$1,215
This United Airlines deal was found by Cheapflights users on 7/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/177:30 am
STL
- NRT
1 stop16h 30m
United Airlines
Tue 12/15:05 pm
NRT
- STL
1 stop19h 08m
United Airlines
Deal found 7/25![United Airlines logo]()
$1,108
This Air Canada deal was found by Cheapflights users on 7/22. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:55 am
STL
- ITM
2 stops19h 15m
Air Canada
Mon 9/282:00 pm
ITM
- STL
2 stops38h 00m
Air Canada
Deal found 7/22![Air Canada logo]()
$1,126
This Cathay Pacific deal was found by Cheapflights users on 7/22. 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.
Tue 8/2510:16 am
STL
- HND
2 stops37h 39m
Multiple Airlines
Mon 8/3110:05 am
HND
- STL
2 stops27h 37m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$1,142
This Delta deal was found by Cheapflights users on 7/23. 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 8/177:45 pm
STL
- HND
2 stops28h 15m
Delta
Fri 8/214:05 pm
HND
- STL
2 stops21h 53m
Delta
Deal found 7/23![Delta logo]()
$1,215
This Cathay Pacific deal was found by Cheapflights users on 7/21. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:00 am
STL
- HND
2 stops41h 55m
Cathay Pacific
Sun 9/134:20 pm
HND
- STL
2 stops45h 23m
Cathay Pacific
Deal found 7/21![Cathay Pacific logo]()
$1,216
This United Airlines deal was found by Cheapflights users on 7/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:00 am
STL
- NRT
1 stop18h 00m
United Airlines
Tue 12/16:00 pm
NRT
- STL
1 stop18h 13m
United Airlines
Deal found 7/25![United Airlines logo]()
$1,108
This FlightHub deal was found by Cheapflights users on 7/22. 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 12/44:05 pm
STL
- ITM
2 stops37h 15m
Multiple Airlines
Fri 12/2512:30 pm
ITM
- STL
2 stops41h 56m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$1,159
This Delta deal was found by Cheapflights users on 7/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/511:13 am
STL
- KIX
2 stops19h 32m
Delta
Fri 8/1412:35 pm
KIX
- STL
2 stops26h 06m
Delta
Deal found 7/25![Delta logo]()
$1,226
This United Airlines deal was found by Cheapflights users on 7/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:40 am
STL
- FUK
2 stops42h 50m
United Airlines
Wed 9/3012:15 pm
FUK
- STL
2 stops24h 44m
United Airlines
Deal found 7/23![United Airlines logo]()
$1,115
This American Airlines deal was found by Cheapflights users on 7/24. 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 8/58:36 am
STL
- ITM
2 stops21h 14m
American Airlines
Fri 8/147:25 am
ITM
- STL
2 stops18h 50m
American Airlines
Deal found 7/24![American Airlines logo]()
$1,503
This Expedia deal was found by Cheapflights users on 7/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:15 am
STL
- ITM
2 stops22h 40m
ANA
Sat 10/247:30 am
ITM
- STL
2 stops20h 40m
ANA
Deal found 7/23![ANA logo]()
$1,511
This Cathay Pacific deal was found by Cheapflights users on 7/25. 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.
Tue 9/155:00 pm
STL
- KIX
3 stops31h 50m
Multiple Airlines
Tue 9/229:45 am
KIX
- STL
2 stops27h 58m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$1,160
This Cathay Pacific deal was found by Cheapflights users on 7/21. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/71:06 pm
STL
- NRT
2 stops35h 24m
Cathay Pacific
Mon 10/193:45 pm
NRT
- STL
3 stops40h 31m
Cathay Pacific
Deal found 7/21![Cathay Pacific logo]()
$1,297
This United Airlines deal was found by Cheapflights users on 7/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:00 am
STL
- NRT
1 stop18h 15m
United Airlines
Wed 12/25:05 pm
NRT
- STL
1 stop14h 51m
United Airlines
Deal found 7/25![United Airlines logo]()
$1,164
This Cathay Pacific deal was found by Cheapflights users on 7/24. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:04 am
STL
- HND
2 stops41h 51m
Multiple Airlines
Thu 10/2210:05 am
HND
- STL
2 stops25h 54m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$1,174
This Cathay Pacific deal was found by Cheapflights users on 7/22. 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.
Thu 10/86:04 am
STL
- NRT
2 stops41h 36m
Cathay Pacific
Sun 10/183:45 pm
NRT
- STL
3 stops43h 23m
Cathay Pacific
Deal found 7/22![Cathay Pacific logo]()
$1,297
This United Airlines deal was found by Cheapflights users on 7/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:25 am
STL
- FUK
2 stops44h 05m
United Airlines
Tue 9/112:15 pm
FUK
- STL
2 stops21h 01m
United Airlines
Deal found 7/25![United Airlines logo]()
$1,176
Last-minute flights from St. Louis to JapanDiscover last-minute flight deals from St. Louis to Japan. Data last updated July 26, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Japan. Data last updated July 26, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 7/24. 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 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
Thu 7/305:45 pm
HND
- STL
1 stop19h 59m
United Airlines
Deal found 7/24![United Airlines logo]()
$1,137
This United Airlines deal was found by Cheapflights users on 7/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:10 am
STL
- HND
2 stops25h 50m
United Airlines
Fri 7/313:45 pm
HND
- STL
1 stop17h 41m
United Airlines
Deal found 7/25![United Airlines logo]()
$1,146
This Alaska Airlines deal was found by Cheapflights users on 7/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/46:02 am
STL
- NRT
1 stop19h 58m
Multiple Airlines
Thu 8/136:00 pm
NRT
- STL
1 stop19h 59m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$1,128
This Justfly.com deal was found by Cheapflights users on 7/26. 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 8/48:00 am
STL
- HND
1 stop17h 25m
ANA
Thu 8/135:15 pm
HND
- STL
1 stop16h 01m
ANA
Deal found 7/26![ANA logo]()
$1,163
This KAYAK deal was found by Cheapflights users on 7/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/128:55 am
STL
- NRT
1 stop16h 55m
ANA
Thu 12/36:45 pm
NRT
- STL
2 stops19h 24m
ANA
Deal found 7/21![ANA logo]()
$1,113
This Alaska Airlines deal was found by Cheapflights users on 7/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:35 am
STL
- NRT
1 stop19h 25m
Multiple Airlines
Wed 8/266:00 pm
NRT
- STL
1 stop34h 06m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$1,134
This Justfly.com deal was found by Cheapflights users on 7/24. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/199:30 am
STL
- NRT
1 stop15h 40m
ANA
Wed 8/265:00 pm
NRT
- STL
1 stop18h 17m
ANA
Deal found 7/24![ANA logo]()
$1,164
This American Airlines deal was found by Cheapflights users on 7/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:00 am
STL
- HND
1 stop19h 50m
American Airlines
Wed 8/264:30 pm
HND
- STL
1 stop17h 56m
American Airlines
Deal found 7/23![American Airlines logo]()
$1,168
This SmartFares deal was found by Cheapflights users on 7/25. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:35 am
STL
- NRT
1 stop19h 25m
Multiple Airlines
Mon 8/316:00 pm
NRT
- STL
1 stop19h 59m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$1,161
This Cathay Pacific deal was found by Cheapflights users on 7/22. 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 8/269:32 am
STL
- FUK
2 stops37h 13m
Multiple Airlines
Wed 9/24:40 pm
FUK
- STL
2 stops44h 01m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$1,138
This Air Canada deal was found by Cheapflights users on 7/24. 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.
Fri 8/2812:10 pm
STL
- NRT
1 stop37h 15m
Air Canada
Fri 9/45:35 pm
NRT
- STL
1 stop39h 07m
Air Canada
Deal found 7/24![Air Canada logo]()
$992
This SmartFares deal was found by Cheapflights users on 7/25. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:35 am
STL
- NRT
1 stop19h 25m
Multiple Airlines
Tue 9/16:00 pm
NRT
- STL
1 stop34h 04m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$1,167
One-way flights from St. Louis to JapanSearch for one-way flight options from St. Louis to Japan. Find affordable one-way fares based on user searches. Data last updated July 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 July 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:17 pm
STL
- NRT
2 stops41h 43m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$413
This Kiwi.com deal was found by Cheapflights users on 7/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:10 pm
STL
- KIX
3 stops47h 05m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$444
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/910:35 am
STL
- KIX
3 stops56h 40m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$472
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/148:10 pm
STL
- NRT
2 stops53h 15m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$477
This Kiwi.com deal was found by Cheapflights users on 7/21. 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.
Wed 8/58:08 pm
STL
- NRT
2 stops28h 02m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$483
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:45 pm
STL
- NRT
2 stops34h 25m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$511
This Thrive Travel deal was found by Cheapflights users on 7/22. 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 Thrive Travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:35 am
STL
- NRT
1 stop19h 25m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$523
This KAYAK deal was found by Cheapflights users on 7/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/512:10 pm
STL
- NRT
1 stop37h 15m
ANA
Deal found 7/21![ANA logo]()
$561
This Justfly.com deal was found by Cheapflights users on 7/21. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/51:13 pm
STL
- HND
1 stop18h 02m
ANA
Deal found 7/21![ANA logo]()
$577
This United Airlines deal was found by Cheapflights users on 7/21. 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.
Wed 8/55:10 am
STL
- HND
2 stops25h 50m
United Airlines
Deal found 7/21![United Airlines logo]()
$579
This KAYAK deal was found by Cheapflights users on 7/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/911:01 am
STL
- KIX
2 stops29h 39m
Cathay Pacific
Deal found 7/24![Cathay Pacific logo]()
$582
This KAYAK deal was found by Cheapflights users on 7/26. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/79:32 am
STL
- HND
2 stops38h 23m
Cathay Pacific
Deal found 7/26![Cathay Pacific logo]()
$582
Find flight deals from St. Louis to Japan
Keep the following information in mind while searching for St. Louis to Japan flight deals. Data was last updated July 26, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $819 (CheapOair) |
One-way from | $413 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $1,356 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Japan that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 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
12:10 pm-4:25 pm
2 stops38h 15m
Osaka Kansai Intl
Tue 9/22
6:00 pm-6:41 pm
2 stops38h 41m
$825
St. LouisOsaka
STL - KIX
STLKIX
Lambert-St Louis
Sun 10/11
12:10 pm-4:25 pm
2 stops38h 15m
Osaka Kansai Intl
Thu 10/29
7:25 pm-3:26 pm
2 stops34h 01m
$1,000
St. LouisOsaka
STL - ITM
STLITM
Lambert-St Louis
Tue 9/15
8:55 am-6:55 pm
2 stops20h 00m
Osaka Itami
Tue 9/22
2:35 pm-8:20 pm
2 stops19h 45m
$1,034
St. LouisOsaka
STL - ITM
STLITM
Lambert-St Louis
Mon 9/7
8:55 am-6:55 pm
2 stops20h 00m
Osaka Itami
Thu 10/1
2:00 pm-8:00 pm
2 stops20h 00m
$1,052
St. LouisTokyo
STL - HND
STLHND
Lambert-St Louis
Tue 11/3
8:58 am-9:10 pm
2 stops21h 12m
Tokyo Haneda
Tue 11/17
7:40 pm-11:09 pm
2 stops18h 29m
$1,098
St. LouisTokyo
STL - NRT
STLNRT
Lambert-St Louis
Sun 11/22
5:00 am-3:00 pm
1 stop19h 00m
Tokyo Narita
Tue 12/1
5:05 pm-9:13 pm
1 stop19h 08m
$1,108
St. LouisTokyo
STL - NRT
STLNRT
Lambert-St Louis
Tue 11/17
7:30 am-3:00 pm
1 stop16h 30m
Tokyo Narita
Tue 12/1
5:05 pm-9:13 pm
1 stop19h 08m
$1,108
St. LouisTokyo
STL - NRT
STLNRT
Lambert-St Louis
Mon 11/23
6:00 am-3:00 pm
1 stop18h 00m
Tokyo Narita
Tue 12/1
6:00 pm-9:13 pm
1 stop18h 13m
$1,108
St. LouisFukuoka
STL - FUK
STLFUK
Lambert-St Louis
Wed 9/23
8:40 am-5:30 pm
2 stops42h 50m
Fukuoka
Wed 9/30
12:15 pm-10:59 pm
2 stops24h 44m
$1,115
St. LouisOsaka
STL - ITM
STLITM
Lambert-St Louis
Wed 9/23
8:55 am-6:10 pm
2 stops19h 15m
Osaka Itami
Mon 9/28
2:00 pm-2:00 pm
2 stops38h 00m
$1,126
Showing 1-10 of 57 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-FUK
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, February is the cheapest month in which you can book a flight from St. Louis to Japan (average of $813). Flying from St. Louis to Japan in June is currently the most expensive (average of $1,412). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How far ahead should I book a flight from St. Louis to Japan?
The price you pay for your flight from St. Louis to Japan may vary depending on when you book. For the best chance of a lower fare, look to book 4 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Reviews of airlines servicing Japan
Get insights into the airlines that provide service to Japan. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Japan. Reviews last updated July 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
Boarding
8.4
Food
7.7
Comfort
8.2
Crew
8.7
Overall
8.3
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Entertainment
7.8
Boarding
8.4
Food
7.7
Comfort
8.2
Crew
8.7
Overall
8.3
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Entertainment
7.8
Boarding
8.4
Food
7.7
Comfort
8.2
Crew
8.7
Overall
8.3
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Entertainment
7.8
Boarding
8.4
Food
7.7
Comfort
8.2
Crew
8.7
Overall
8.3
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Entertainment
7.8
Boarding
8.4
Food
7.7
Comfort
8.2
Crew
8.7
Overall
8.3
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Entertainment
7.8
Boarding
8.4
Food
7.7
Comfort
8.2
Crew
8.7
Overall
8.3
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Japan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for St. Louis to Japan
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Complete your trip
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St. Louis and Japan flights
Browse other St. Louis and Japan flight options. Last updated on July 26, 2026.
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Top 6 airlines flying from St. Louis to Japan
Discover the top 6 airlines that operate flights from St. Louis to Japan. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$593 | Average$1,186 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$667 | Average$1,214 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$697 | Average$1,164 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$739 | Average$1,098 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$785 | Average$1,230 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$846 | Average$1,277 | FlexibilityNo cancel fee | On-time79% |