STL - SJU

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STL — SJU
Jan 21 — Jan 281
Round-trip
1 adult
Economy
0 bags
From?
To?
Fri 1/21
Fri 1/28

Good to know

Low season

August

High season

December

Average price round-trip

$391

Good deal round-trip

$286

Good deal one-way

$168
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 40% increase in price.
(avg. price over the last 2 weeks)
or less
or less

When to book flights from St. Louis to San Juan

Estimated round-trip price
Average price per month
Flight prices as travel date approaches

Top tips for finding a cheap flight

  • Looking for a cheap flight? 25% of our users found flights on this route for $168 or less one-way and $286 or less round-trip.
  • The cheapest flight from St. Louis to San Juan was found 14 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be November, December and January. The cheapest month to fly is August.
  • Morning departure is around 12% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for booking St. Louis to San Juan flights

Top airlines flying Lambert-St Louis to San Juan Luis Munoz Marin Intl

Scores according to KAYAK customer reviews
5.7
FrontierOverall score based on 40338 reviews
6.4Boarding
5.4Comfort
6.8Crew
4.6Entertainment
4.7Food
Airline reviews

3.5 hours late and took 40 minutes to get to gate after landing. Frontier is a mess.

Read more about Frontier

3.5 hours late and took 40 minutes to get to gate after landing. Frontier is a mess.

Leave on time and not wait for 40 minutes to be unloaded. Also I was throwing up for most of the flight but unless I wanted to call the paramedics, I was to stay in my seat.

Pros: "That was fun"
Cons: "The food in the airplane"
Pros: "The crew of the flight was good but the seat are no comfortable."
Cons: "Comfortable seats."
Pros: "Once again everyone was so wonderful and helpful"
Cons: "Lower luggage cost. I spent $110 additional on this trip since since I wasn't well informed (my fault)"
Pros: "Nothing"
Cons: "Everything"
Pros: "Nothing"
Cons: "Staff crabage"
Pros: "Fast easy boarding, friendly helpful staff"
Cons: "There was more kids sitting on their parents lap than I’ve ever seen before and it made a very chaotic noisy flight"
Pros: "Cost of flight."
Cons: "The seats in a A320/321 are not adjustable. A much longer flight then a couple of hours would be tuff."
Cons: "Good"
Pros: "No issues"
Pros: "The crew. Clean Plane."
Cons: "Very uncomfortable chairs."
Pros: "Price"
Cons: "Hardest most uncomfortable seats, ever!"
Cons: "The seats are very uncomfortable"
Pros: "Well, I got there safely."
Cons: "The seats, having to pay for seats, having to pay for a drink, 45 minutes wait for bags, etc"
Pros: "The prices"
Cons: "Paying for a carry on Seats do not recline No complimentary beverages Flight was delayed and we rarely received updates I understand that you charge for everything in order to offer better prices, but by the time the customer pays to bring on luggage, we are paying the same price as an airline that allows baggage for free with inclusive drinks, snacks and seats that recline."
Pros: "Getting off the plane."
Cons: "Missed my flight because lack of people to check people in. So slow. Waited 25 minutes. Figured I missed my flight since the board said on time. It was 2:25. Asked if I could get on 7:30 flight. Took computer 10 minutes for her to see and book. As I left, she said the 2:30 was still boarding. I said, oh, do you think I could still make it? She said the plane was still loading and running a bit late, but impossible to get on because I was booked on the 7:30 flight. I will probably not fly Frontier again. 4 hours later and $50 dollars in the hole for food and drink sitting here dreading my middle seat and no room to move for 2 hours. Then, have to pay for a Lyft to get to my car because my cousin was my ride back to her house. I sure do miss the old Frontier."
Pros: "Very cheap"
Cons: "Very uncomfortable no elbow room or leg room and the chairs are hard."
Pros: "It was exceptionally smooth and affordable. Very impressed with what you're doing, Frontier."
Cons: "It was flawless this time. No kidding."
Pros: "The staff that handled baggage was nice. Also, I liked that we made it safe."
Cons: "My flight was supposed to leave at 3:50...I got to the airport and went through security before I found out that my flight was delayed until 7:30. The flight kept getting pushed back. I waited 8 hours before the flight took off. There no outlets anywhere...leaving customers at a disadvantage because with our delay, our electronics were all almost dead or dead. There were no food options. We were supposed to get a voucher, and I have not received it. Lastly, after waiting over 8 HOuRS, we still had to pay for snack and drink. I was ripped off and will not be flying with Frontier again."
Pros: "Finally landing!"
Cons: "It felt like the rear end was going to come off the way it swayed after take off. The commode messed up causing a stench in the back of the plane, (where I was). The ride was very bumpy and the pilot intercom was hard to understand. We got delayed taking off and landing."
Cons: "Canceled my flight eight hours before "supposed" weather even hit and had no other flights to put me on. Ended up having to cancel my entire weekend trip. Customer service was not friendly or apologetic!"
Cons: "How is it acceptable to place someone who is highly allergic to dogs right next to a lady with a service dog on the flight? I spent 25 bucks to upgrade my seat to avoid the nuisances of an everyday flight. I didn't think I'd be stuck next to an animal. How is it acceptable to not disclose that I'd be stuck next to a service dog? I was miserable the entire 2.5 hour flight back to denverz I am extremely irritated."
Pros: "2 hour wait for baggage check in. Then an additional 6 hour wait for flight, only to find out it was cancelled non weather related. Terrible airline. Kayak should not be associated."
Pros: "Quick, reasonably comfortable flight, however....."
Cons: "This was the 12:30am red-eye from Las Vegas to St. Louis. Flight was delayed until 2:20am. Fine, flights get delayed all the time. It is worse when everything in the airport to kill time is shut down, but I digress. Then the plane comes in around 2am, everyone on the flight gets off, then the announcement comes that they don't have a crew for our flight now, and we will have to wait until 9am for the next flight. Whoopsies! This is no longer a delay -- this is a major F-up by Frontier that affected dozens of already very weary customers (the staff admitted to it being a flub). Once boarded, people complained, as you'd expect, and one stewardess responded "Well, you can pay $400 with somebody else, or pay under $100 here." THAT was your response?? She was stating a fact, I realize this, but that was the wrong answer at the wrong time, lady. I know you get what you pay for, but my expectations don't go completely out the window. And don't be proud to be a F-up airline that merely exists on its price point. It's one thing to be one, it's another thing to wave a flag about it. And the cherry on top is what Frontier did to make it right. Another steward on the plane explained how rare this phenomenon is that we just experienced. Well if it really is rare, and inconveniences their customers to this degree, you would expect them to take strong measures to make it right, no? Any restaurant would, a car rental would, etc, if it was such a rare mistake. What did Frontier do? $7 breakfast voucher. Just punch us in the face next time. There are people that have powered through your barely-existent customer service, and those "gotcha" fees that first-time customers run into (at least Frontier hopes they do), and still liked your airline. Then you go and do something to drive even us loyals away. All you had to do was do what airlines run by thoughtful human beings do and issue flight vouchers during this rare mistake, and it would have been a microscopic write-off. Instead -- face punch, and "justification" behind it of all things. Unreal Frontier, even for you."
Pros: "The price and and the ease of connections was great,"
Cons: "The layovers of over 6 hours were not great and the flights back home were both delayed, but not much."
Pros: "We landed safely"
Cons: "The flight crew was atrocious. They were rude when they spoke to us and when I asked for refreshments they turned around as if to get them for me and then the lady sitting next to my husband had to get their attention again to ask a second time if I could have water and Chex Mix so I could take my medicine. I have serious health conditions and I couldn't even get water without paying $3 a bottle. It is disgusting to me that we are charged for flight and then charged for Refreshments during that flight. Any other Airline who charges for a seat to take you to your destination includes at least drinks and nuts for free but not you."
Pros: "Kind, helpful, clean, friendly."
Cons: "I'm small and I still think there's just not quite enough room for each passenger spot. Sure, you can buy a seat with more room, but everyone can't. There's just not enough seats that give enough butt and leg room."
Cons: "Fronteir created new seats that do not recline, are quite thin and small tray tables that don't lock. The consequence is that the man next to me couldn't lean back enough, so slumped onto me most of the flight. A one year old behind me constantly pulled up and down the unmatchable tray table and kicked my thin chair -- so I felt every little tiny foot. The stewardess refused to give us water when our row asked and they forgot to call boarding zone 2 when boarding so it was a mess. I would say Frontier was a terrible airline. Their discounted prices are a farce as they charge for a seat and carry-on luggage, so I may as well have paid for a regular fare from a more comfortable airline."
Cons: "Frontier has a ton of hidden fees...including no free drinks/snacks on the flight, fee for carry-ons. Seats do not recline so you're stuck in 1 position the whole flight. Tray tables were the same size as an iphone."
Cons: "Seats were uncomfortable and don't recline. No complimentary beverage or snack. Late leaving."
Cons: "The flight was delayed a few hours. It took forever to Get out of the gate. It took an hour once we landed to get in the gate and deplane. I was given a seat on the computer and then when I got on the plane there were two people with same seat. The floors and seats were unbelievably dirty as well. I have never seen so much trash and crumbs everywhere. It was an awful experience. Our trip to Vegas the first night was ruined because we were planning to see a show Thursday evening and landed two hours late and could have possibly made it but we sat on runway for an hour before deplaning."
Pros: "I like and it went good with no problems."
Cons: "The baggage Claim which I didn't know each baggage claim have each groups of what the name that you flying out which no one told me about that so its new to me ."
Pros: "Nothing will not recommend them"
Cons: "The price quoted did not include their fees for a carry on - $30 both ways! Feels unethical."
Cons: "The only attention from flight attendants was to solicit me for something to buy. They were reluctant to provide even a glass of water but did provide it but not courteously."
Pros: "the crew made the best of a miserable corporate policy; the baggage arrived - 45 minutes after landing."
Cons: "2.0 hours late boarding; boarded 2x; lousy information; surly condescending station manager; insane baggage counter hours; no connection information in flight despite airline full responsibility for everyone on the plane being behind schedule.; connecting flight still at gate when 10 people tried to board and were not given access until a near riot occurred; no one seemed care at all. A woman with 5 week old child, a senior citizen with a cane, a woman recovering form surgery all RAN from gate to the other (about 1/2 miles) only to be told they were too late, the terminal door was closed. Only after pounding on the door, cajoling the customer service people 10 feet away and telling 50 others waiting in the service area did the door open!"
Pros: "The boarding process was easy and organized. They were also on time."
Cons: "They charge for everything. I pre checked my bag at a cost of $70. If I had waited to do it at the airport it would have been $90."
Cons: "Bag fee, carry on fee, pick seat fee, were bad.enough, but 11.00 for 2 sodas and snacks,, then asking for a tip was too much. Will pay more for any other airline."
Pros: "Plane was clean. Seats were very comfortable l, but not much leg room"
Cons: "They charge for for everything on this flight. Checking in - it cost $35 to check your bag in - $40 of you want to board with it! I do all the work and I have to pay more? Then to pick a seat - any seat - it is another $5 - $25. I understand that for premium seating (ext, etc) but any seat? Finally - drinks and snacks - that costs money too. While the fare looks cheap - beware of all the add ons. At a minimum, you have an additional $70 to $100 to the price of the ticket This does not turn out to be a cheaper price....beware."
Pros: "First time flying, and had a great experience. I made a mistake when ordering tickets online and when I called in to fix the problem they corrected my mistake and bumped me up to first class at no charge."
Cons: "Nothing everything went smoothly."
Pros: "I like thevery timely boarding and my flight itself was good."
Cons: "Didn't like that I had to to put for coffee heck that I had to pay $40 for a carry-on. The tickets for that flight when I bought it was only a few dollars cheaper than delta. Of I wouldve known they charged for everything I would have went with another flight. Despite the extra fee it was ok"
Cons: "My flight got delayed 6hours and it was to leave at 2:37 in the morning and instead I wanted to just get the flight the next day but they still charged me $100, nor did they offer to put me in a hotel I paid for that too."
Pros: "The flight, the crew, the updates from the airline and Kayak was great. Frontier is a great company and very affordable."
Cons: "The airline increased the bag fees for the summer without an obvious communication. Very unfair and un professional from such a company. I paid $10 extra than 5 days before. The only problem with Frontier is that to check in bags there is only 1 maybe 2 people taking bags for full planes at least 100+ passengers. As it is cheaper and better to check in bags than carry on the airline should make this proccess more efficient. I spend at least 20-30 minutes to check my bag each wat ok my last trip. Very unefficient!"
Pros: "The Staff was friendly"
Cons: "the flight was only cheaper until you had to either check a bag or pay to carry on! Pay to drink a soda or anything! The seats are the most stripped down uncomfortable airline seats I have ever experienced. After all the add on costs, there is no value in the cramped, crowded, uncomfortable flight. Also, on every flight at least half of the passengers were not aware of the baggage policy until it was too late to check it for less money and had to pay extra to carry on. To top it off, we had to change gates at the last minute, resulting in having to go out of the Domestic terminal and sent us all back through the check in!!! We should have at least been able to fly through the pre check if not rerouted us through another way that did not require the total shoes off, open bags, metal detection all over again!!!"
Cons: "My luggage was misplaced on the plane and I waited for an hour for it and it went to the wrong section. I paid two dollars for a soda. St. Louis frontier desk is not open from 930-3pm which is crazy ridiculous. Also your plans are extremely uncomfortable and have become just like military planes. $30 for a carry on is excessive and $25 for a checked back? Absolutely not. I will not fly frontier again."
Cons: "The flight was delayed and the airline charges for everything. They tried to charge me for my CARRYON bag which is hilarious, and I proceeded to say I would not pay that charge. The attendant let me board the plane anyway and I put my carryon in the overhead without an issue, which deeply concerns me. It seems as if Frontier arbitrarily tacks on that charge, tricking their customers like con artists who will fall for this absurdity. The air conditioning did not work well and they almost forgot to give us water. Maybe they even charged for the water. The attendants were rude. Dont fly Frontier unless you really really really need to save a dime or two."
Pros: "...the ticket agent who got me checked and put me through priority TSA so I could make my flight!"
Cons: "The assistance of a front counter agent was horrible and made inappropriate comments to me due to me being late to my flight which was due to a faulty shuttle and short staffed rental service as if I was aware of airline policy! Even though I wanted to avoid all of lines to check in (only carry on bag) but all kiosk where out of service which why the lines where so long...the snide remarks and rude comments were not appreciated especially in front of other patrons, thank God another agent to assist me after the line agent moved me another customer up due to our flights."
Pros: "On time unlike all the other airlines and very reasonably priced."
Cons: "I'm very tall with long legs. So I was a little cramped but, for the price I made dew. Frontier's price was a fourth or less than the other airlines with a staight flight nonstop."
Pros: "I felt safe throughout the whole trip; the landing was on if the smoothest landings I've felt ever. Frontier is the only airline I have taken."
Cons: "n/a"
Pros: "Flight was on time. Crew was very professional."
Cons: "Charge for seats, stowed baggage and food/drinks negated competitive air fare cost of other carriers. Will not use Frontier again! Wheel chair attendant and wheel chair were not available in Orlando when we arrived."

They change gates and tbe pasengers get lost.

Relax travel

No fue buena la experiencia

Cons: "Tk"
Pros: "La experiencia en general ha sido muy buena. Solo que en las ocasiones que te sucede una emergencia no tienes derecho de cancelar, no se le otorga al menos un crédito y ni siquiera te pueden asistir mediante servicio al cliente."
Cons: "Necesitaba cancelar mi vuelo por razones de salud y se me informó que no me podían asistir a través del servicio al cliente. Ya que ellos no podían hacerlo."
Pros: "Flight was cheap"
Cons: "Flight news delayed and everything was chaotic and passengers were uninformed. Completely unorganized"
Pros: "Desk clerk was polite to help me check my luggage at the gate."
Pros: "Plane was clean."
Cons: "Muy bueno el crew"
Pros: "Fair price"
Cons: "Comfort"
Pros: "Prices were reasonable."
Cons: "We know that airports don’t allow you to bring water (liquids) and that water (and anything) is super expensive at the airport. I am very disappointed that there was not even free water during the flight. Also if there is nothing special about the seats why make you pay for selecting them."
Cons: "All went well, baggage was a little slow, but other than that it was good!"
Pros: "Yes the crew was amazing."
Cons: "The space between the seats could be better"
Pros: "the flight was good very fast"
Cons: "the flight was good, but the space inside the plane is very small, they charge you to breathe, water, luggage. even the wallet is charged as a personal item, to travel with a baby Spirit is NOT an option. The uncomfortable seats in that must improve a lot. Cheap tickets but you pay for everything."
Pros: "Service, flight"
Cons: "Paid a lot for luggage at the airport in florida vs when i left Puerto Rico and i did not buy anything"
Pros: "On time. Good flight and smooth landing."
Cons: "People should be able to bring a carry on free of charge like in other airlines."
Cons: "The flight was overpaid.i was concern beacuse the next way has to perform a important laboratory. At last the situation was on controlled"
Pros: "Nada."
Cons: "Super incómodo"
Cons: "Horrible females flight attendants"
Cons: "The seats are uncomfortable"
Cons: "Good"
Pros: "Excellent crew"
Pros: "Military friendliness Crew humor"
Cons: "There doesn’t seem to be an incentive to going through the self check in. I still had to make the long line. The boarding announcements weren’t loud enough which caused people to clog up the line so that they could hear what was being said in hopes of hearing which group was being called to board the plane. I never got offered refreshments on the plane or anything for that matter. I was never approached by any crewmember on the plane whatsoever. No shoulder room when sitting in the middle seat."
Cons: "Very fast"
Pros: "On time"
Cons: "Seat not comfortable"
Cons: "You guys charge for carry ons. That sucks. I bought the ticket thinking 'great price'. Wrong"
Cons: "Carry on bag fee"
Pros: "Nobody was in my side"
Cons: "Super delayed"
Pros: "Flight left early and arrived early. No drama at the gate. Great staff and smooth landing."
Cons: "The space of the seat and that know we have to pay for our luggage"
Pros: "Nothing"
Cons: "Our flight was delayed and we missed the connection even though we were told that the connecting flight was waiting for us. The only options provided were to wait until Tuesday (it was Sunday) without a Hotel or to receive a reimbursement and find another flight by our own. We had to buy a ticket from another airline. The reimbursement received was not even half of the amount paid or the price for one way ticket to that destination. We received a $50 voucher that expires in 2 months. No one from that flight wants to travel ever again with Spirit. Customer service was awful."
Pros: "Fast flight"
Cons: "Hidden fees and no leg room in seats. Guy tried to trick us into giving up our seats at check in for worse seats??? Just watch your back"
Cons: "Everything no amenities, poor service, dated airplane, hidden fees, charge you for everything. Just plain ridiculous"
Cons: "Had to pay a lot for my carion around 60"
Pros: "Nice attention from airline personnel"
Cons: "Checking in at San Juan airport took longer and e-systems didn't work ok"
Cons: "Double booking of seats"
Pros: "The gentleman speaking on the microphone was funny."
Cons: "Seats were terrible and uncomfortable. Charge for everything, nickel and dime for everything. My luggage was over by 2lbs (42lbs) and was charged another $30.00 aside from the $40.00 I already paid for my luggage. They also try to get you to fill out for a credit card to earn points for a free flight. . I will NEVER fly Spirit again."
Pros: "Crew was very friendly and helpful"
Cons: "Long delay in ft Lauderdale on plane on hard seats. After adding all additional cost plane tickets was same as competitors. Only they offer more comfort for the price."
Pros: "Timely departure. Great customer service in San Juan , Puerto Rico."
Cons: "At the FLL airport there were 2 lines outside the airport. We asked an employee and the person directed us to the shortest line. 30 minutes later another Spirit employee passed by us and asked if we had boarding passes and if we needed to pay for our luggage. We had boarding passed and had already paid for our luggage, Then she said we were supposed to be on the other line. She moved us to a very long line. I kept telling employees that our departure time was in about an hour and they kept saying we were in time. WE arrived at the gate 8 minutes before closing the doors. My luggage did not make it in time to the airplane and stayed behind in FLL. I blame those employees that did not inform us properly and to the lack of informative signs around the Spirit counters. This will be my last Spirit flight. The $40 charged per bag is too much and the carry-on sizes are too small."
Pros: "Excelente!"
Pros: "It was the only flight without stop. That is the only thing I like."
Cons: "The price, seat, services in all aspect."
Cons: "You end up paying for everything separately, so at the end there is not necessarily too much savings vs other airlines with better service and entertainment. Even carry on luggage costs extra."
Pros: "Colocar tv o dvd para ver peliculas o algun radio."
Pros: "Nice service. Nice prices. Excellent flight experience. I didn't buy food, so I can't rate that."
Cons: "The baggages fee it's expensive."
Pros: "Wheel chair service"
Cons: "Ridiculous prices. At the end even if the ticket you pay less you have to pay to much in extras, so is not cheapier!"
Pros: "Nothing, In this life you can never say "never". But God willing, I'll try my best never to fly with this airline again!!!"
Pros: "Nice counter employees. Fast counter service"
Cons: "We have to pay for everything including water and little space between seat"
Pros: "Flight on time, clean aircraft, customer services ok"
Cons: "Many hidden costs, seats unreasonably small, no drinks or snacks at all unless you buy them, disorganized. Airline appears reasonably priced, but they charge high prices for any amenity usually included in the price. They didnt have curbside at airport, adding to the long lines inside. Elderly passenger had to walk with heavy bags before getting wheelchair. Not acceptable. Website almost imposible to navigate-kept kicking me out and phone service is inefficient . Clearly, everything is set up to make traveler spend the most for any necessary convenience once they arrive at airport. Will not travel with Spirit agIn."
COVID-19 information

Safety measures for airlines flying from St. Louis to San Juan

Airlines flying from St. Louis to San Juan have enacted additional safety measures and adjusted policies to better accommodate travelers. Policies vary by airline.

Heightened sanitation

Daily cleaning, installation of cabin HEPA filters on flights from St. Louis to San Juan

Mandatory masks

Masks required on board, masks provided on flights from St. Louis to San Juan

Social distancing seating

Middle seats unavailable to book on flights from St. Louis to San Juan

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from St. Louis to San Juan

Flexible cancellations

Waiving of change fees. Search flexible flights from St. Louis to San Juan

Book cheap flights from St. Louis to San Juan

Recent round-trip flight deals

3/22Tue
1 stopFrontier
10h 43mSTL-SJU
3/29Tue
1 stopFrontier
28h 18mSJU-STL
$131
2/5Sat
1 stopSpirit Airlines
7h 23mSTL-SJU
2/12Sat
1 stopSpirit Airlines
9h 29mSJU-STL
$139
2/5Sat
1 stopMultiple Airlines
12h 34mSTL-SJU
2/11Fri
1 stopMultiple Airlines
7h 40mSJU-STL
$140
3/22Tue
1 stopFrontier
10h 43mSTL-SJU
3/29Tue
1 stopFrontier
28h 18mSJU-STL
$142
5/11Wed
1 stopSpirit Airlines
5h 56mSTL-SJU
5/17Tue
1 stopSpirit Airlines
6h 50mSJU-STL
$143
2/4Fri
1 stopSpirit Airlines
13h 57mSTL-SJU
2/7Mon
1 stopSpirit Airlines
19h 59mSJU-STL
$145
5/11Wed
1 stopSpirit Airlines
8h 34mSTL-SJU
5/17Tue
1 stopSpirit Airlines
6h 50mSJU-STL
$149
2/25Fri
1 stopFrontier
6h 46mSTL-SJU
2/28Mon
1 stopFrontier
15h 16mSJU-STL
$152
2/2Wed
1 stopMultiple Airlines
13h 57mSTL-SJU
2/3Thu
1 stopMultiple Airlines
22h 03mSJU-STL
$153
2/1Tue
1 stopMultiple Airlines
13h 57mSTL-SJU
2/3Thu
1 stopMultiple Airlines
22h 03mSJU-STL
$154
1/30Sun
1 stopSpirit Airlines
23h 23mSTL-SJU
2/3Thu
1 stopSpirit Airlines
15h 19mSJU-STL
$155
3/8Tue
1 stopMultiple Airlines
10h 47mSTL-SJU
3/15Tue
1 stopMultiple Airlines
10h 44mSJU-STL
$156
2/4Fri
1 stopSpirit Airlines
9h 50mSTL-SJU
2/6Sun
1 stopSpirit Airlines
27h 19mSJU-STL
$157
2/1Tue
1 stopSpirit Airlines
13h 57mSTL-SJU
2/5Sat
1 stopSpirit Airlines
6h 20mSJU-STL
$158
2/4Fri
1 stopSpirit Airlines
9h 50mSTL-SJU
2/7Mon
2 stopsSpirit Airlines
16h 59mSJU-STL
$160
2/23Wed
1 stopSpirit Airlines
13h 29mSTL-SJU
2/27Sun
1 stopSpirit Airlines
22h 00mSJU-STL
$161
5/17Tue
1 stopMultiple Airlines
8h 34mSTL-SJU
5/18Wed
1 stopMultiple Airlines
14h 41mSJU-STL
$163
3/15Tue
1 stopMultiple Airlines
10h 43mSTL-SJU
3/23Wed
1 stopMultiple Airlines
9h 34mSJU-STL
$168
2/2Wed
1 stopMultiple Airlines
13h 57mSTL-SJU
2/4Fri
2 stopsMultiple Airlines
18h 13mSJU-STL
$169
3/15Tue
1 stopMultiple Airlines
10h 43mSTL-SJU
3/22Tue
1 stopMultiple Airlines
10h 44mSJU-STL
$172

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Recent one-way flight deals

2/1Tue
1 stopSpirit Airlines
13h 57mSTL-SJU
$63
2/16Wed
1 stopSpirit Airlines
13h 29mSTL-SJU
$64
2/4Fri
1 stopSpirit Airlines
13h 57mSTL-SJU
$70
2/5Sat
1 stopSpirit Airlines
7h 23mSTL-SJU
$72
5/16Mon
1 stopSpirit Airlines
15h 28mSTL-SJU
$75
1/29Sat
1 stopFrontier
11h 20mSTL-SJU
$76
1/27Thu
1 stopSpirit Airlines
23h 23mSTL-SJU
$80
1/25Tue
1 stopSpirit Airlines
13h 57mSTL-SJU
$84
2/13Sun
2 stopsSpirit Airlines
32h 27mSTL-SJU
$86
2/21Mon
1 stopSpirit Airlines
20h 11mSTL-SJU
$87
1/27Thu
2 stopsSpirit Airlines
31h 07mSTL-SJU
$95
1/27Thu
1 stopSpirit Airlines
12h 34mSTL-SJU
$96
1/27Thu
2 stopsMultiple Airlines
17h 48mSTL-SJU
$105
2/3Thu
2 stopsMultiple Airlines
17h 46mSTL-SJU
$107
2/4Fri
2 stopsMultiple Airlines
19h 43mSTL-SJU
$112
3/14Mon
2 stopsMultiple Airlines
22h 08mSTL-SJU
$120
2/17Thu
1 stopFrontier
8h 11mSTL-SJU
$130
1/28Fri
2 stopsFrontier
25h 17mSTL-SJU
$133
2/3Thu
3 stopsMultiple Airlines
15h 36mSTL-SJU
$135
1/27Thu
3 stopsMultiple Airlines
16h 11mSTL-SJU
$141

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St. Louis - San Juan Flights

Departure:

St. Louis (STL)United States

Destination:

San Juan (SJU)Puerto Rico

Return flight deals:

San Juan - St. Louis

Cabin classes:

$1,069
$648
$170

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