
Round-trip from | $211 (Frontier) |
|---|---|
One-way from | $88 (Frontier) |
Popular in | June |
Cheapest in | January |
Average price | $346 |
Fly from
Fly to
Route
Depart
Return
San JuanSt. Louis
SJU - STL
SJUSTL
San Juan Luis Munoz Marin Intl
lør. 5/23
6:25 am-7:31 pm
1 stop14h 06m
Lambert-St Louis
lør. 5/30
4:19 pm-2:08 am
1 stop8h 49m
San JuanSt. Louis
SJU - STL
SJUSTL
San Juan Luis Munoz Marin Intl
tor. 8/13
8:55 pm-7:45 am
1 stop11h 50m
Lambert-St Louis
tir. 8/25
10:15 am-7:00 pm
2 stops7h 45m
San JuanSt. Louis
SJU - STL
SJUSTL
San Juan Luis Munoz Marin Intl
tor. 8/13
5:30 am-3:10 pm
2 stops10h 40m
Lambert-St Louis
man. 8/17
5:10 am-1:45 pm
1 stop7h 35m
San JuanSt. Louis
SJU - STL
SJUSTL
San Juan Luis Munoz Marin Intl
tir. 5/19
6:30 am-8:55 am
2 stops27h 25m
Lambert-St Louis
tir. 6/2
6:33 pm-11:59 pm
2 stops28h 26m
San JuanSt. Louis
SJU - STL
SJUSTL
San Juan Luis Munoz Marin Intl
fre. 6/19
9:50 am-7:35 pm
2 stops10h 45m
Lambert-St Louis
søn. 6/21
4:20 pm-12:25 am
1 stop7h 05m
San JuanSt. Louis
SJU - STL
SJUSTL
San Juan Luis Munoz Marin Intl
fre. 7/3
10:20 pm-8:40 am
1 stop11h 20m
Lambert-St Louis
man. 7/6
6:15 pm-1:20 am
1 stop6h 05m
San JuanSt. Louis
SJU - STL
SJUSTL
San Juan Luis Munoz Marin Intl
tir. 7/14
7:00 am-2:45 pm
2 stops8h 45m
Lambert-St Louis
lør. 7/18
5:25 pm-12:45 am
1 stop6h 20m
San JuanSt. Louis
SJU - STL
SJUSTL
San Juan Luis Munoz Marin Intl
ons. 6/17
1:00 am-12:11 pm
2 stops12h 11m
Lambert-St Louis
lør. 6/20
9:23 am-8:34 pm
1 stop10h 11m
San JuanSt. Louis
SJU - STL
SJUSTL
San Juan Luis Munoz Marin Intl
tor. 6/25
10:20 am-8:50 pm
2 stops11h 30m
Lambert-St Louis
tor. 7/9
2:25 pm-12:05 am
2 stops8h 40m
San JuanSt. Louis
SJU - STL
SJUSTL
San Juan Luis Munoz Marin Intl
lør. 6/13
5:00 am-5:55 pm
2 stops13h 55m
Lambert-St Louis
lør. 7/11
9:50 am-8:35 pm
2 stops9h 45m
The best time to book flights from Puerto Rico to St. Louis is 23 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, December is the cheapest month in which you can book a flight from Puerto Rico to St. Louis (average of $84). Flying from Puerto Rico to St. Louis in August is currently the most expensive (average of $233). 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.
Crew
Overall
Food
Comfort
Entertainment
Boarding
Reviews
Dominic,Mar 2026
MCO - SMF
Crew
Overall
Food
Comfort
Entertainment
Boarding
Reviews
Dominic,Mar 2026
MCO - SMF
Crew
Overall
Food
Comfort
Entertainment
Boarding
Reviews
Dominic,Mar 2026
MCO - SMF
Crew
Overall
Food
Comfort
Entertainment
Boarding
Reviews
Dominic,Mar 2026
MCO - SMF
Crew
Overall
Food
Comfort
Entertainment
Boarding
Reviews
Dominic,Mar 2026
MCO - SMF
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$84 | Average$318 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$170 | Average$530 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$225 | Average$379 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$342 | Average$595 | FlexibilityNo cancel fee | On-time63% |