Find Deals on Flights from Lambert-St Louis to Puerto Rico

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
Students
under 26
The price shown for each flight will be the average for all passengers including any infants.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Lambert-St Louis to Puerto Rico

(Round-trip)
Depart: Wed Jan 25 2017 Return: Thu Feb 2 2017 Trip spans 9 days
Major Airline
Major Airline
STL
12:00a
SJU
2:02a
2h 02m
nonstop
SJU
8:00a
STL
2:02p
6h 02m
nonstop
Depart: Mon Mar 13 2017 Return: Tue Mar 14 2017 Trip spans 2 days
American Airlines
American Airlines
STL
12:54p
SJU
7:25p
6h 31m
1 stop
SJU
4:31a
STL
6:07p
13h 36m
2 stops
Depart: Sat Jan 28 2017 Return: Tue Jan 31 2017 Trip spans 4 days
Delta
Delta
STL
6:30a
SJU
3:34p
9h 04m
1 stop
SJU
11:45a
STL
8:21p
8h 36m
1 stop
Depart: Sun Jan 22 2017 Return: Tue Jan 24 2017 Trip spans 3 days
United
United
STL
10:40a
BQN
6:45p
8h 05m
1 stop
BQN
9:55p
STL
7:08a
9h 13m
1 stop
Depart: Fri Jan 27 2017 Return: Mon Jan 30 2017 Trip spans 4 days
American Airlines
American Airlines
STL
2:19a
SJU
9:36a
7h 17m
1 stop
SJU
10:44a
STL
6:32p
7h 48m
1 stop
Depart: Tue Feb 14 2017 Return: Tue Mar 7 2017 Trip spans 22 days
Delta
Delta
STL
8:54a
SJU
3:37p
6h 43m
1 stop
SJU
11:59a
STL
8:34p
8h 35m
1 stop
Depart: Thu Mar 30 2017 Return: Tue Apr 4 2017 Trip spans 6 days
Major Airline
Major Airline
STL
2:00a
SJU
5:02a
3h 02m
nonstop
SJU
2:00a
STL
7:02a
5h 02m
nonstop
Depart: Fri Feb 3 2017 Return: Sat Feb 4 2017 Trip spans 2 days
United
United
STL
1:20p
SJU
10:50p
9h 30m
1 stop
SJU
9:05p
STL
10:46a
13h 41m
2 stops
Depart: Mon Jan 30 2017 Return: Thu Mar 2 2017 Trip spans 32 days
American Airlines
American Airlines
STL
1:00a
SJU
7:47a
6h 47m
1 stop
SJU
12:20p
STL
8:25p
8h 05m
1 stop
Depart: Sun Mar 5 2017 Return: Wed Mar 8 2017 Trip spans 4 days
Delta
Delta
STL
8:47a
SJU
3:33p
6h 46m
1 stop
SJU
3:15a
STL
11:48a
8h 33m
1 stop
Depart: Tue Mar 28 2017 Return: Sat Apr 1 2017 Trip spans 5 days
Major Airline
Major Airline
STL
1:00a
SJU
4:02a
3h 02m
1 stop
SJU
1:00a
STL
6:02a
5h 02m
1 stop
Depart: Sat Feb 11 2017 Return: Sat Feb 18 2017 Trip spans 8 days
United
United
STL
5:05a
SJU
6:10p
13h 05m
2 stops
SJU
1:45a
STL
9:24a
7h 39m
1 stop
Depart: Wed Feb 8 2017 Return: Fri Feb 10 2017 Trip spans 3 days
American Airlines
American Airlines
STL
1:00a
SJU
9:36a
8h 36m
1 stop
SJU
10:44a
STL
6:32p
7h 48m
1 stop
Depart: Wed Apr 12 2017 Return: Wed Apr 19 2017 Trip spans 8 days
Delta
Delta
STL
1:45a
SJU
8:22a
6h 37m
1 stop
SJU
3:25a
STL
11:32a
8h 07m
1 stop
Depart: Sat Apr 1 2017 Return: Wed Apr 5 2017 Trip spans 5 days
Major Airline
Major Airline
STL
1:00a
SJU
4:02a
3h 02m
nonstop
SJU
1:00a
STL
6:02a
5h 02m
nonstop
Depart: Fri Feb 24 2017 Return: Thu Mar 2 2017 Trip spans 7 days
United
United
STL
12:59p
SJU
9:49p
8h 50m
1 stop
SJU
1:45a
STL
9:24a
7h 39m
1 stop
Depart: Sun Feb 26 2017 Return: Thu Mar 2 2017 Trip spans 5 days
American Airlines
American Airlines
STL
1:00a
SJU
9:23a
8h 23m
1 stop
SJU
12:20p
STL
8:25p
8h 05m
1 stop
Depart: Tue Apr 18 2017 Return: Tue May 2 2017 Trip spans 15 days
Delta
Delta
STL
1:45a
SJU
9:52a
8h 07m
1 stop
SJU
8:51a
STL
5:12p
8h 21m
1 stop
Depart: Fri Mar 17 2017 Return: Sat Mar 25 2017 Trip spans 9 days
United
United
STL
2:25p
SJU
10:49p
8h 24m
1 stop
SJU
1:00a
STL
10:49a
9h 49m
1 stop
Depart: Fri Mar 24 2017 Return: Wed Mar 29 2017 Trip spans 6 days
Major Airline
Major Airline
STL
1:00a
SJU
4:02a
3h 02m
1 stop
SJU
1:00a
STL
6:02a
5h 02m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

St. Louis
$288
Destination

Aguadilla
$305
San Juan
$288