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SJU - STL

$57 Find Cheap Flights from San Juan to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Juan to St. Louis departing on 12/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
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Search hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Juan to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Juan to St. Louis, as well as popular online travel agencies
In the last 7 days travelers have searched 45,017,868 times on KAYAK, and here is why:

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Cheap Flight Deals from San Juan to St. Louis (SJU-STL)

 
These are the cheapest deals for flights from San Juan to St. Louis currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from San Juan to St. Louis

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from San Juan to St. Louis.

Recent one-way flight deals from San Juan to St. Louis

Only flying one-way? Below are some of the best one-way flight deals from San Juan to St. Louis found on KAYAK recently.

Recent last minute flight deals from San Juan to St. Louis

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from San Juan to St. Louis.

Recent direct flight deals from San Juan to St. Louis

The latest deals for direct flights from San Juan to St. Louis so you can sit back and relax without the need for a layover.

Cheap bus & train deals from San Juan to St. Louis

Find recent round-trip train or bus tickets from San Juan to St. Louis.

All round-trip flight deals to St. Louis

The cheapest plane tickets to St. Louis found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
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12:12 pm - 11:31 pmSJU-STL
13h 19m1 stop
5:05 pm - 10:23 amSTL-SJU
15h 18m1 stop
$134Frontier
Find Deal
mar., ene. 28 - mar., feb. 4
5:05 pm - 11:24 pmSJU-STL
8h 19m1 stop
5:02 pm - 10:24 amSTL-SJU
15h 22m1 stop
$152Frontier
Find Deal
jue., dic. 5 - lun., dic. 9
5:05 pm - 11:24 pmSJU-STL
8h 19m1 stop
5:02 pm - 2:04 pmSTL-SJU
19h 02m2 stops
jue., dic. 5 - lun., dic. 9
6:15 am - 11:39 amSJU-STL
7h 24m1 stop
6:30 am - 4:27 pmSTL-SJU
7h 57m1 stop
$254Delta
Find Deal
mié., feb. 19 - lun., feb. 24
7:45 am - 10:17 pmSJU-STL
16h 32m1 stop
9:36 am - 9:59 pmSTL-SJU
10h 23m2 stops
$260American Airlines
Find Deal
mar., ene. 28 - mar., feb. 4
2:45 am - 10:32 amSJU-STL
9h 47m1 stop
8:00 pm - 11:25 pmSTL-SJU
25h 25m3 stops
mar., feb. 18 - lun., feb. 24
2:19 pm - 10:13 pmSJU-STL
9h 54m2 stops
5:05 am - 8:55 pmSTL-SJU
13h 50m1 stop
$293American Airlines
Find Deal
jue., dic. 5 - dom., dic. 8
2:05 am - 12:19 pmSJU-STL
12h 14m2 stops
6:15 am - 4:36 pmSTL-SJU
8h 21m1 stop
$344United Airlines
Find Deal
mié., dic. 4 - dom., dic. 8
2:05 am - 10:47 amSJU-STL
10h 42m1 stop
9:44 am - 10:22 pmSTL-SJU
10h 38m2 stops
$383United Airlines
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mar., ene. 21 - lun., ene. 27
6:15 am - 12:55 pmSJU-STL
7h 40m1 stop
6:00 am - 4:29 pmSTL-SJU
9h 29m1 stop
$384Delta
Find Deal
mié., abr. 16 - lun., abr. 21
5:05 pm - 11:24 pmSJU-STL
8h 19m1 stop
$57Frontier
Find Deal
jue., dic. 12
12:13 pm - 11:24 pmSJU-STL
13h 11m1 stop
$64Frontier
Find Deal
mié., dic. 11
2:19 pm - 10:33 pmSJU-STL
10h 14m2 stops
$127American Airlines
Find Deal
vie., dic. 6
4:40 pm - 11:59 pmSJU-STL
9h 19m2 stops
$130American Airlines
Find Deal
jue., dic. 5
12:55 pm - 11:38 pmSJU-STL
11h 43m1 stop
$147Delta
Find Deal
sáb., may. 3
2:45 am - 11:24 pmSJU-STL
22h 39m1 stop
mié., dic. 11
3:41 pm - 11:41 pmSJU-STL
10h 00m1 stop
$166Delta
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mar., dic. 3
2:45 am - 11:24 pmSJU-STL
22h 39m1 stop
mié., dic. 4
2:05 am - 10:43 amSJU-STL
10h 38m1 stop
$172United Airlines
Find Deal
vie., ene. 31
2:05 am - 3:34 pmSJU-STL
15h 29m2 stops
$211United Airlines
Find Deal
mar., dic. 3
8:30 am - 8:26 amSJU-STL
25h 56m1 stop
6:32 pm - 2:52 amSTL-SJU
6h 20m1 stop
$265Frontier
Find Deal
sáb., nov. 9 - sáb., nov. 23
11:12 am - 11:54 pmSJU-STL
38h 42m3 stops
8:56 am - 10:07 amSTL-SJU
23h 11m1 stop
mar., nov. 12 - vie., nov. 15
3:59 am - 11:54 pmSJU-STL
45h 55m2 stops
8:56 am - 10:07 amSTL-SJU
23h 11m1 stop
lun., nov. 11 - vie., nov. 15
7:55 am - 5:15 pmSJU-STL
11h 20m2 stops
8:15 pm - 10:20 amSTL-SJU
12h 05m1 stop
$574Southwest
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mar., nov. 12 - vie., nov. 15
11:12 am - 12:10 pmSJU-STL
26h 58m3 stops
2:10 pm - 12:39 pmSTL-SJU
20h 29m3 stops
mar., nov. 12 - vie., nov. 15
3:41 pm - 11:41 pmSJU-STL
10h 00m1 stop
6:00 am - 5:13 pmSTL-SJU
9h 13m1 stop
$609Delta
Find Deal
mar., nov. 12 - vie., nov. 15
1:40 pm - 4:50 pmSJU-STL
5h 10mnonstop
8:45 pm - 10:45 amSTL-SJU
12h 00m1 stop
$625Southwest
Find Deal
sáb., nov. 9 - sáb., nov. 23
8:20 am - 5:14 pmSJU-STL
10h 54m2 stops
5:00 am - 3:43 pmSTL-SJU
8h 43m2 stops
$627American Airlines
Find Deal
sáb., nov. 9 - sáb., nov. 23
2:05 am - 3:39 pmSJU-STL
15h 34m2 stops
8:40 am - 9:26 pmSTL-SJU
10h 46m1 stop
$699United Airlines
Find Deal
lun., nov. 11 - vie., nov. 15
2:05 am - 12:19 pmSJU-STL
12h 14m2 stops
11:20 am - 12:36 amSTL-SJU
11h 16m2 stops
$774United Airlines
Find Deal
vie., nov. 8 - sáb., nov. 23

Flights from San Juan to St. Louis - Travel Insights & Trends

Get data-powered insights and trends into flights from San Juan to St. Louis to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from San Juan to St. Louis?

The average price of all flights from San Juan Luis Munoz Marin Intl Airport to St. Louis clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from San Juan to St. Louis, look for departures on Tuesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from St. Louis, Tuesday is the cheapest day to fly and Saturday is the most expensive.

What is the cheapest month to fly from San Juan Luis Munoz Marin Intl Airport to St. Louis?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from San Juan Luis Munoz Marin Intl Airport to St. Louis, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from San Juan Luis Munoz Marin Intl Airport to St. Louis is February, where tickets cost $341 on average. On the other hand, the most expensive months are June and December, where the average cost of tickets is $550 and $490 respectively.

Can I save money by flying with a layover from San Juan Luis Munoz Marin Intl Airport to St. Louis?

The average price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.
No, with an average price for the route of $267, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from San Juan Luis Munoz Marin Intl Airport to St. Louis?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from San Juan Luis Munoz Marin Intl Airport to St. Louis, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from San Juan Luis Munoz Marin Intl Airport to St. Louis, you should book around 1 day before departure. For the absolute cheapest price, our data suggests you should book 58 days before departure.

Good to know

Low season

January

High season

December

Cheapest flight

$57
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly with an average 13% increase in price.
Flight from San Juan to St. Louis

When to book flights from San Juan to St. Louis

Are your dates flexible? Find out the best times to travel from San Juan to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking San Juan to St. Louis flights

  • What is the cheapest flight from San Juan Luis Munoz Marin Intl Airport to St. Louis?

    In the last 3 days, the lowest price for a flight from San Juan Luis Munoz Marin Intl Airport to St. Louis was $57 for a one-way ticket and $134 for a round-trip.

  • Do I need a passport to fly between San Juan and St. Louis?

    Yes

  • Which airports will I be using when flying from San Juan to St. Louis?

    San Juan and St. Louis are both served by 1 main airport. You will leave San Juan from San Juan Luis Munoz Marin Intl and will be arriving at Lambert-St Louis.

  • Which aircraft models fly most regularly from San Juan to St. Louis?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the San Juan to St. Louis flight route.

  • On which days can I fly direct from San Juan to St. Louis?

    You can catch a nonstop flight from San Juan to St. Louis on Saturday.

  • Which is the best airline for flights from San Juan to St. Louis, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from San Juan to St. Louis are Delta and United Airlines. With an average price for the route of $375 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $554 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from San Juan to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Juan to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Juan to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from San Juan is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Juan to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to San Juan with another airline. Booking your flights between San Juan and STL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Juan to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from San Juan up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Prefer to fly non-stop from San Juan to St. Louis?

Find which airlines fly direct from San Juan Luis Munoz Marin Intl Airport to Lambert-St Louis Airport, which days they fly and book direct flights.

Nonstop departures

San Juan Luis Munoz Marin Intl to Lambert-St Louis

Saturday

Southwest

Southwest

See more direct flights

Nonstop returns

Lambert-St Louis to San Juan Luis Munoz Marin Intl

Saturday

Southwest

Southwest

See more direct flights
See more direct flights

Top 4 airlines serving from San Juan to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from San Juan to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Juan to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 8828 reviews
7.3Food
8.2Boarding
8.5Crew
7.9Comfort
7.9Entertainment
Airline reviews

Most of my discomfort was going through TSA. However, the Delta seats had inadequate leg room and I tried my very best to connect to the wi-fi and it was a cumbersome process that finally gave me the info that I needed to sign in AFTER I had completed the flight...Why make it so difficult to use? That said I really really appreciate the pilot taking a little extra time to avoid a bad storm area and both landings in Atlanta and Orlando were flawless to my delight!!!

6.0 GoodSus, Nov 2024GEG - ATL
Read more Delta reviews

Most of my discomfort was going through TSA. However, the Delta seats had inadequate leg room and I tried my very best to connect to the wi-fi and it was a cumbersome process that finally gave me the info that I needed to sign in AFTER I had completed the flight...Why make it so difficult to use? That said I really really appreciate the pilot taking a little extra time to avoid a bad storm area and both landings in Atlanta and Orlando were flawless to my delight!!!

Delayed in taking off because no flight crew. The in seat entertainment was working properly.

I love my flight attendant Faith, always smiles always helpful. She makes the flight experience wonderful thank you

My return flights were changed by the airline and my preferred seat selection with extra legroom was not transferred to the new flights

I upgraded to first class only to find out that I still had no access to the sky lounge without a sky miles card or AmEx (something that should be emphasized outside of the fine print!) Also, no food or drink service provided during the flight, so I basically paid 4x more just for “free” checked baggage and a bigger seat. Not worth it.

Very dissatisfied with the fact that I had upgraded to first class for the second part of my trip only to find out that the lounge was still not available to me, as well as not having any food or drink service on the flight due to weather, so I lost out more than what I paid for.

Delta was really good about being transparent with why we were delayed it’s just that’s the plane was really old and outdated and a lot of the comfort and amenities we know Delta to have did not shine through

Bottom seat cushion is almost non existent. Very uncomfortable seat.

Delta was great the entertainment was outdated. Screen was very small and didn’t work.

Flight did not have seat back entertainment and the wifi was iffy.

Long wait before take off without an update for 20 minutes. Flight was good otherwise.

Plane still had screens for watching movies. Good selection too.

The plane’s radio wasn’t working. This delayed the plane for an hour and a half. Then we all broaded and taxied down the runway only to get called back because the radio was still not working. Had to get off the plane and then find another plane making the trip 4 hours delayed. Maybe a different plane should have been chosen sooner?!?!?!

The food for long haul was poor compared to Singapore airlines economy. Pasta plain with tomato sauce . Singapore airlines give me Hagen dash small ice cream cup it was great. The choices of dinner course Singapore air also much better The crew mostly friendly. The economy seat are as expected.

The care and attention for my flight was great. The seats were not as comfortable.

ANA was great. United was horrible. They bumped us from economy plus to economy and were supposed to contact us for a refund but no luck. We booked the seats 9 months in advance.

The plane was clean. The staff was excellent. The flight attendants were very good. Enjoyable flight. Overall. The seats in the back are too small but, will always be.

I was at the back of the plane with earphones, and I could still hear the chatty flight attendants; I wasn't able to sleep at all.

There was no air on the plane and it was very hot.

Flight crew was amazing! I don't like that the Polaris seats are side-by-side.

Boarding was very smooth and arriving in Miami it was fast getting off the plane

The flight encountered a delay exceeding 4 hours. The food voucher issued was valued at $12, insufficient to cover our meal expenses. Consequently, I was unable to take my medication, leading to a drop in blood sugar levels and exacerbating my anxiety.

Great Team on the flight. I was the only one in the exit row and the flight attendant just sat down and we had a talk about my responsibilities sitting in the exit row. It was very humorous. During the flight every time one of the flight team members made eye contact, they smiled. It was a small thing, but it was a friendly environment.

Great flight from Charlotte to Orlando. In flight wifi and entertainment was not working til 25 minutes were left in the flight would be my only complaint.

More room. International flight - by the time you put your purse and shoes under the seat in front of you, add in the pillow and blanket they give you- makes for tight fit.

Boarding can be more efficiently done by having the back row passengers board first. This way, the other people do the have to wait for front row passengers to load their luggage in the overhead cabins. Food is simply pathetic for the price I paid. Cleanliness is simply poor; my seat was full of crumps.

Overall good. Tight connection in DFW because of gate unavailability upon landing.

Airplane was cold. Flight attendants were rude. Phone charger did not work. No food available.

The flight was very smooth, crew were fantastic but food was lacking.

No food, no entertainment. But the flight was really short so maybe they had to skip drinks. I was able to board early ONLY because I am old and decrepit and they let me pre-board. I RESENT your dumping us into category 9 if we do not pay up. And when I paid for a seat I was STILL given 9. The pre-boarding helps. THIS flight was exceptionally smooth, please congratulate the pilots.

Booked direct in July '24. Turned into a 14 hr layover (both ways) in Denver. My 5 day vaca turned into a 1 day . Not good, BUT,... Thank you for the people @ Frontier who were professionally friendly & approachable.

Stop changing gates at sfo. When you are elderly going back for it’s not fun.

We understand and comply with Frontier’s bag sizes. We’ve had some problems in past while having to await other passengers who do not understand the baggage restrictions or have not prepaid and that is usually our biggest concern (others delaying us) with flying Frontier. Flying OUT of ONT, however, has always been a great experience. I’ve also noted even on delayed Frontier flights very knowledgeable pilots who manage expectations well.

There was no easy way to check in. I don't want to install an app to checkin. I will use alaska from now on because they have a web check in method that is easy.

The crew was ghetto lol I felt like I was on an inner city field trip

Horrible! The short distance flight ended up taking 5 hrs! There was a 3 hr delay for the flight to take off and there was a 70 min wait on the tarmac for some bogus reason that the pilot said the gate he was supposed to board was taken up. After a 30 min wait he said the plane that was supposed to push out of the gate called a medical emergency and 40 min later he ended up boarding another gate. For the initial 3 hr delay there was no information/alert about the gate or delay in the app or the boards up until the boarding time and even beyond! Had to walk all the way to the end of the terminal to find the frontier staff to ask what was going on. Avoid this airline at all costs! If you have carryon bags or checked bags , their prices come equivalent to the prices of more reliable airlines. They are the worst in timeliness at 60% (reported as delayed) this year (check the data) by a high margin even compared to the second worst airline. If you are ok with having a miserable flight experience with the odds close to flip of a coin, feel free to try them. If you value your time , money and flying experience, stay away.

There was nothing to like, flight delayed had to move to different departure areas, disorganized to say the leasr

Delayed for two hours due to trivial issues. No reimbursment. Also on arrival further delay due to terminal malfunction.

Our flight was canceled for no known reason. We weren’t told until we were checking in at 5:00 am. This was after our last flight with Frontier where we sat on the plane for three hours (not an exaggeration) before we took off because of a mechanical issue. We won’t be flying Frontier again.

Allowed me to chose my seat without extra charge (I purchased full-price ticket) and boarding was in group1. Didn't even serve water.

Book cheap flights from San Juan to St. Louis

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from San Juan to St. Louis found on KAYAK in the last 72 hours.
12/12jue.
1 stopFrontier
8h 19mSJU-STL
$57
12/11mié.
1 stopFrontier
13h 11mSJU-STL
$64
12/6vie.
2 stopsAmerican Airlines
10h 14mSJU-STL
$127
12/5jue.
2 stopsAmerican Airlines
9h 19mSJU-STL
$130
5/3sáb.
1 stopDelta
11h 43mSJU-STL
$147
12/11mié.
1 stop
22h 39mSJU-STL
$149
12/3mar.
1 stopDelta
10h 00mSJU-STL
$166
12/4mié.
1 stop
22h 39mSJU-STL
$168
1/31vie.
1 stopUnited Airlines
10h 38mSJU-STL
$172
12/3mar.
2 stopsUnited Airlines
15h 29mSJU-STL
$211

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Last minute flights from San Juan to St. Louis

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from San Juan to St. Louis that are departing in the next 10 days.
11/9sáb.
multi-stopFrontier
25h 56mSJU-STL
11/23sáb.
multi-stopFrontier
6h 20mSTL-SJU
$265
11/12mar.
multi-stop
38h 42mSJU-STL
11/15vie.
multi-stop
23h 11mSTL-SJU
$534
11/11lun.
multi-stop
45h 55mSJU-STL
11/15vie.
multi-stop
23h 11mSTL-SJU
$537
11/12mar.
multi-stopSouthwest
11h 20mSJU-STL
11/15vie.
multi-stopSouthwest
12h 05mSTL-SJU
$574
11/12mar.
multi-stop
26h 58mSJU-STL
11/15vie.
multi-stop
20h 29mSTL-SJU
$604
11/12mar.
multi-stopDelta
10h 00mSJU-STL
11/15vie.
multi-stopDelta
9h 13mSTL-SJU
$609
11/9sáb.
nonstopSouthwest
5h 10mSJU-STL
11/23sáb.
multi-stopSouthwest
12h 00mSTL-SJU
$625
11/9sáb.
multi-stopAmerican Airlines
10h 54mSJU-STL
11/23sáb.
multi-stopAmerican Airlines
8h 43mSTL-SJU
$627
11/11lun.
multi-stopUnited Airlines
15h 34mSJU-STL
11/15vie.
multi-stopUnited Airlines
10h 46mSTL-SJU
$699
11/8vie.
multi-stopUnited Airlines
12h 14mSJU-STL
11/23sáb.
multi-stopUnited Airlines
11h 16mSTL-SJU
$774

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Everything you need to know for your flight from San Juan to St. Louis

Information on your arrival and departure airports