Round-trip from | $209 (Southwest) |
---|---|
One-way from | $105 (United Airlines) |
Popular in | December |
Cheapest in | August |
Average price | $479 |
Fly from
Fly to
Route
Depart
Return
Price
St. LouisSan Juan
STL - SJU
STLSJU
Lambert-St Louis
Sun 4/27
4:35 pm-11:40 pm
1 stop6h 05m
San Juan Luis Munoz Marin Intl
Thu 5/1
5:35 am-1:30 pm
1 stop8h 55m
St. LouisSan Juan
STL - SJU
STLSJU
Lambert-St Louis
Sat 4/26
12:47 pm-8:23 pm
1 stop6h 36m
San Juan Luis Munoz Marin Intl
Sat 5/3
6:15 am-11:41 am
1 stop6h 26m
St. LouisSan Juan
STL - SJU
STLSJU
Lambert-St Louis
Thu 4/24
6:10 pm-11:46 pm
2 stops28h 36m
San Juan Luis Munoz Marin Intl
Thu 5/1
9:25 am-5:15 pm
1 stop8h 50m
St. LouisSan Juan
STL - SJU
STLSJU
Lambert-St Louis
Sat 5/3
6:15 am-12:09 am
1 stop16h 54m
San Juan Luis Munoz Marin Intl
Wed 5/7
6:10 am-10:19 pm
1 stop17h 09m
St. LouisSan Juan
STL - SJU
STLSJU
Lambert-St Louis
Sat 4/26
1:12 pm-11:54 pm
1 stop9h 42m
San Juan Luis Munoz Marin Intl
Fri 5/2
1:05 am-11:03 am
2 stops10h 58m
St. LouisSan Juan
STL - SJU
STLSJU
Lambert-St Louis
Fri 5/2
5:55 pm-2:51 am
1 stop7h 56m
San Juan Luis Munoz Marin Intl
Fri 5/9
3:56 am-12:06 am
1 stop21h 10m
St. LouisSan Juan
STL - SJU
STLSJU
Lambert-St Louis
Thu 5/8
10:10 am-7:07 pm
1 stop7h 57m
San Juan Luis Munoz Marin Intl
Mon 5/12
9:30 pm-12:06 am
1 stop27h 36m
St. LouisSan Juan
STL - SJU
STLSJU
Lambert-St Louis
Sat 5/3
9:40 am-11:57 pm
2 stops13h 17m
St. LouisSan Juan
STL - SJU
STLSJU
Lambert-St Louis
Tue 5/13
6:00 am-10:30 pm
1 stop15h 30m
St. LouisSan Juan
STL - SJU
STLSJU
Lambert-St Louis
Sat 4/5
4:57 pm-1:50 am
1 stop7h 53m
The price you pay for your flight from St. Louis to San Juan may vary depending on when you book. For the best chance of a lower fare, look to book 29 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Currently, September is the cheapest month in which you can book a flight from St. Louis to San Juan (average of $254). Flying from St. Louis to San Juan in December is currently the most expensive (average of $336). 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.
When flying from St. Louis to San Juan, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 52% versus a flight in the morning.
Travelers seeking maximum savings on their St. Louis to San Juan flight should consider departing on Tuesday evenings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
In terms of precipitation, rainfall in San Juan ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit San Juan when rainfall is around 2.2 in.
If weather is an important factor for your trip to San Juan, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).
Boarding
Food
Crew
Entertainment
Comfort
Overall
Reviews
Ila,Mar 2025
HOU - DAL
Boarding
Food
Crew
Entertainment
Comfort
Overall
Reviews
Ila,Mar 2025
HOU - DAL
Boarding
Food
Crew
Entertainment
Comfort
Overall
Reviews
Ila,Mar 2025
HOU - DAL
Boarding
Food
Crew
Entertainment
Comfort
Overall
Reviews
Ila,Mar 2025
HOU - DAL
Boarding
Food
Crew
Entertainment
Comfort
Overall
Reviews
Ila,Mar 2025
HOU - DAL
Boarding
Food
Crew
Entertainment
Comfort
Overall
Reviews
Ila,Mar 2025
HOU - DAL
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$140 | Average$262 | FlexibilityNo cancel fee | On-time62% | |
Cheapest$172 | Average$311 | FlexibilityNo cancel fee | On-time65% | |
Cheapest$254 | Average$425 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$264 | Average$410 | FlexibilityNo cancel fee | On-time69% | |
Cheapest$268 | Average$506 | FlexibilityNo cancel fee | On-time71% | |
Cheapest$392 | Average$607 | FlexibilityNo cancel fee | On-time63% |