
Keep the following information in mind while searching for St. Louis to Japan flight deals. Data was last updated September 29, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $925 (Air Canada) |
One-way from | $455 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $970 |
Fly from
Fly to
Route
Depart
Return
St. LouisTokyo
STL Lambert-St Louis - NRT Tokyo Narita
STLNRT
Lambert-St Louis
Sat 11/7
7:59 pm-2:25 pm
2 stops27h 26m
Tokyo Narita
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
St. LouisTokyo
STL Lambert-St Louis - HND Tokyo Haneda
STLHND
Lambert-St Louis
Sat 11/7
7:59 pm-9:10 pm
2 stops34h 11m
Tokyo Haneda
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
St. LouisSapporo
STL Lambert-St Louis - CTS Sapporo Chitose
STLCTS
Lambert-St Louis
Tue 3/16
7:29 am-2:50 pm
2 stops41h 21m
Sapporo Chitose
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
St. LouisTokyo
STL Lambert-St Louis - NRT Tokyo Narita
STLNRT
Lambert-St Louis
Wed 11/11
8:10 am-1:10 pm
2 stops38h 00m
Tokyo Narita
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
St. LouisTokyo
STL Lambert-St Louis - HND Tokyo Haneda
STLHND
Lambert-St Louis
Fri 11/6
6:44 pm-9:10 pm
2 stops35h 26m
Tokyo Haneda
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
St. LouisTokyo
STL Lambert-St Louis - NRT Tokyo Narita
STLNRT
Lambert-St Louis
Tue 11/10
6:00 am-8:20 pm
2 stops47h 20m
Tokyo Narita
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
St. LouisTokyo
STL Lambert-St Louis - HND Tokyo Haneda
STLHND
Lambert-St Louis
Tue 11/10
7:26 am-9:15 pm
2 stops46h 49m
Tokyo Haneda
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
St. LouisTokyo
STL Lambert-St Louis - HND Tokyo Haneda
STLHND
Lambert-St Louis
Fri 11/13
7:59 pm-9:10 pm
2 stops34h 11m
Tokyo Haneda
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
St. LouisTokyo
STL Lambert-St Louis - NRT Tokyo Narita
STLNRT
Lambert-St Louis
Sun 3/28
11:31 am-6:50 am
2 stops29h 19m
Tokyo Narita
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
St. LouisTokyo
STL Lambert-St Louis - HND Tokyo Haneda
STLHND
Lambert-St Louis
Sun 3/28
7:29 am-1:55 pm
2 stops40h 26m
Tokyo Haneda
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
Everything you need to know about your flight from St. Louis to Japan
Food
Overall
Comfort
Boarding
Crew
Entertainment
Reviews
Anonymous,Sep 2025
HNL - KIX
Food
Overall
Comfort
Boarding
Crew
Entertainment
Reviews
Anonymous,Sep 2025
HNL - KIX
Food
Overall
Comfort
Boarding
Crew
Entertainment
Reviews
Anonymous,Sep 2025
HNL - KIX
Food
Overall
Comfort
Boarding
Crew
Entertainment
Reviews
Anonymous,Sep 2025
HNL - KIX
Food
Overall
Comfort
Boarding
Crew
Entertainment
Reviews
Anonymous,Sep 2025
HNL - KIX
Food
Overall
Comfort
Boarding
Crew
Entertainment
Reviews
Anonymous,Sep 2025
HNL - KIX
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.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$667 | Average$1,171 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$697 | Average$1,262 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$697 | Average$1,267 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$739 | Average$1,292 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$785 | Average$1,240 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$846 | Average$1,280 | FlexibilityNo cancel fee | On-time79% |