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SJU - STL

$102 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 5/20. 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
0 bags
Wed 6/5
Wed 6/12

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 42,830,901 times on KAYAK, and here is why:

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Cheap flight deals from San Juan to St. Louis (SJU-STL)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Juan to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
8:06 pm - 2:23 pmSJU-STL
19h 17m1 stop
8:12 pm - 11:17 amSTL-SJU
14h 05m1 stop
$275Spirit Airlines
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Mon, Jun 10 - Thu, Jun 13
3:15 am - 6:40 pmSJU-STL
16h 25m1 stop
7:44 pm - 1:59 amSTL-SJU
29h 15m1 stop
Wed, May 29 - Fri, Jun 14
9:28 am - 7:08 amSJU-STL
22h 40m1 stop
7:44 pm - 1:59 amSTL-SJU
29h 15m1 stop
$288Frontier
Find Deal
Thu, May 30 - Fri, Jun 14
8:09 pm - 8:39 pmSJU-STL
25h 30m1 stop
9:20 pm - 11:05 amSTL-SJU
12h 45m1 stop
$294Frontier
Find Deal
Fri, Aug 2 - Mon, Aug 5
2:09 pm - 11:00 pmSJU-STL
9h 51m1 stop
5:37 am - 2:43 pmSTL-SJU
8h 06m1 stop
$313American Airlines
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Fri, Sep 6 - Tue, Sep 10
8:00 am - 3:28 pmSJU-STL
8h 28m1 stop
6:08 am - 11:20 pmSTL-SJU
16h 12m1 stop
$321American Airlines
Find Deal
Thu, May 30 - Fri, Jun 14
1:05 am - 10:07 amSJU-STL
10h 02m2 stops
6:15 am - 3:19 pmSTL-SJU
8h 04m1 stop
$534United Airlines
Find Deal
Thu, Sep 5 - Tue, Sep 10
1:05 am - 2:18 pmSJU-STL
14h 13m2 stops
6:20 am - 3:42 pmSTL-SJU
8h 22m1 stop
$649United Airlines
Find Deal
Mon, Aug 5 - Sun, Aug 11
1:00 am - 1:20 pmSJU-STL
37h 20m2 stops
2:21 pm - 2:49 pmSTL-SJU
23h 28m2 stops
$1,429Alaska Airlines
Find Deal
Thu, Aug 1 - Mon, Aug 5
12:45 am - 11:59 pmSJU-STL
24h 14m2 stops
7:00 am - 12:15 amSTL-SJU
16h 15m2 stops
$1,743Alaska Airlines
Find Deal
Wed, May 29 - Fri, Jun 14

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 Thursdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from St. Louis, Wednesday is the cheapest day to fly and Friday 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 September, where tickets cost $314 on average. On the other hand, the most expensive months are December and June, where the average cost of tickets is $505 and $471 respectively.

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 3 days before departure. For the absolute cheapest price, our data suggests you should book 36 days before departure.

Which airlines provide the cheapest flights from San Juan to St. Louis?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from San Juan to St. Louis found by KAYAK users in the last 72 hours was for $275 on Spirit Airlines, followed by Frontier ($288). One-way flight deals have also been found from as low as $102 on Spirit Airlines and from $109 on Frontier.

How many flights are there between San Juan Luis Munoz Marin Intl Airport and St. Louis per day?

There is a maximum of 1 nonstop flight a day that takes off from San Juan Luis Munoz Marin Intl Airport and lands in St. Louis, with an average flight time of 5h 05m. The most common departure time is 9:00 am and most flights take off in the morning. Each week, there are 1 flights.

What’s the earliest departure time from San Juan to St. Louis?

Early birds can take the earliest flight from San Juan Luis Munoz Marin Intl Airport at 8:55 am and will be landing in St. Louis at 12:45 pm.

What’s the latest departure time from San Juan to St. Louis?

If you prefer to fly at night, the latest flight from San Juan Luis Munoz Marin Intl Airport to St. Louis jets off at 9:55 am and lands at 2:00 pm.

Good to know

Low season

January

High season

July

Cheapest flight

$102
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 8% lower on average.
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 $102 for a one-way ticket and $275 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?

    We unfortunately don’t have that data for this specific 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, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from San Juan to St. Louis are United Airlines and American Airlines. With an average price for the route of $554 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $490 and an overall rating of 7.3.

  • 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 Luis Munoz Marin Intl to Lambert-St Louis, 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 5 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 10818 reviews
7.4Food
8.2Boarding
8.6Crew
7.9Comfort
8.0Entertainment
Airline reviews

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

2.0 MediocreAnonymous, May 2024AVL - LGA
Read more about Delta reviews

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

Everything was great. The big planes could still stand to have a bit more leg room. Crew was amazing!!

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

The flight was excellent, I recommend people to fly with Delta

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

The crew were very welcoming and helpful. I just wish economy had a bit more leg room. My knees were constantly hitting the chair in front of me.

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

It was okay, no wifi or entertainment real disappointment. Staff onboard not very friendly.

This flight was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

It started with multiple delays, cancellations, re booking, 5 hour lay over and finally on a plane from Chicago to Pittsburgh. Gates, times, etc were changed multiply times. Once on the plane, staff was fine, but built in tv did not work and could not even turn it off. Light at eye level the entire trip, so sleeping was near impossible. No snacks or drinks given.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

Only water and pretzels served on six hour flight. Did not see crew rest of flight. No video screens and so no wired audio. Poor sound on plan so did not understand anything said by crew. This is a safety issue. Electrical socket did not retain charging block so could not charge phone. No video screen so could not watch movies. Phone is not a substitute.

It was fine. Flight was on time and arrived at destination with 15 min to spare.

My bag was lost with my medicine and I am very inconvenienced. I don’t know what happened, however I want you to do a better job on getting people’s bag back

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The food that was offered based on class level of your ticket was absolutely ridiculous and disgusting. They didn't even hot tea to serve, the food was horrible. On our departure flight I was seated in premium plus economy and considering the cost of the flight the food was literally some of the worst I've ever eaten. On the return flight I sat in economy with extra leg room and was given a thin little throw "blanket" and a flimsy little pillow. The air condition was on artic and the seating arrangement wasn't really worth the money. The seat didn't recline good enough and the foot rest was laughable. Total waste.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Again, multiple delays and I eventually just canceled and drove!

Great crew. We were delayed so that late passengers could get on the flight. Love the bedding in business class. Good food. Great experience.

The CX617 from HK to BKK was delayed more than 1.5 hours.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

All four American Airlines flights I took in last seven days were delayed. Caused me loads of problems, missed meetings, loss of time and money.

American cancelled our flight home. Zero option for hotel, alternative transportation and took 3 hours to find our bags so we could take a 3 hour UBER ride home on our dime. Never flying AA again.

They gave my seat away although it was a connecting flight with them and the flight was a bit delayed.

They ocer booked the connecting flight. My bags took a long time to come out, nevertheless I got to the gate in time to board, but they have given my seat to another passenger. They were aware I was connecting from another flight that was a little late, but they did not care. The customer representatives were rude. A horrible experience.

Flight was cancelled had to move to another gate late again no internet paid for the month and never can use it waste of money

Not being able to purchase my check in baggage online was a negative.

Crew was nice, explained emergency protocol very well. Flight took off and arrived on time. Pilot explained the small delay that occurred with docking and providing updates. I would definitely fly spirit again.

Terrible… missed our flight due to ridiculously long time to go thru baggage check-in!

The crew was not great or professional. It seemed like they didn't really want to be there. A true lack of effort for accommodating customers.

Everything was really good but the seats are not very comfortable.

I paid for WiFi, but it (WiFi) was very very slow, will never take again! Impossible open Utube 😤😤😤

I had no legroom, although I paid for extra legroom. I could barely put my bag in front of my feet and under the seat. The Wi-Fi was horrible. In fact the flight attendant said that they had to reboot it and see if it was going to work and never did.

The guy with severe body odor sat next to me. For the whole duration of the flight it was a torture. The airline should have better policy on limiting people with bad body odor to board the flight. Passengers should not be the ones to endure bad odor for the whole duration of the flight. The airline should be e the one to ensure decent air quality for ever passenger.

Overall it was a miserable experience... I will never fly spirit for more than a 3 hour flight or overnight.

The boarding attendant was slightly rude when I asked about checking our stroller. Made me feel like I was bothering her.

My wife and I are both handicapped and at boarding they upgraded us to a seat closer to the front rather than all the way towards the back. Much appreciated.

Not good 😐 Over priced baggage fees Small hard seats No wifi or entertainment options 😕

Didn't like anything!! Horrible flight. Small seating area and hard seats. Butt was sore after 2 hour flight to Seattle No entertainment or free refreshments No wifi or USB charging receptacles to charge phone entoute like other airliners Luggage rates were 3 times as much as competitors. Difficult to navigate online luggue process to pre pay before flight Overall bad experience WILL NEVER RIDE OR RECOMMEND FRONTIER TO FRIENDS OR FAMILY MEMBERS!!! THIS IS A SHAME!! MOST MESERIBLE FLIGHT OF MY LIFE!! AND I THOUGHT SPIRIT WAS 👎 YOU GOT THEM BEAD HANDS DOWN!!

Flight was a little late taking off. Seats are too upright, no ports to charge devices, no wifi, no entertainment

Six hour delay. Poor customer service. No voucher. Bad communication. Missed important appointments.

Our flight was delayed an hour, then when we got to board our flight finally, we were waiting in our seats for take off for 45 minutes before it was communicated that there was a maintenance issue therefore we waited on the plane for over an hour while that was resolved. We did not get to Phoenix until almost 3 hours after we were originally supposed to. This was the first and last time I will be flying Frontier.

Flight was canceled with little warning. Flight was rebooked through Ontario, California and connecting flight was delayed by over three hours. Frontier is living up to their Greyhound of the skies reputation for sure.

I purchased a carry on bag online…was supposed to cost $72 but after a whole slew of bs charges, the total was over $175.00. Because of these hidden charges, I will not even consider flying Frontier ever again. It’s just not worth the hassle. I’m scratching this company off my list forever.

Flight was OK. Seats were good no cell phone charges on the plane no TVs or entertainment.

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

Flight cancelled and was told by a rude gate agent that they don’t accommodate on other airlines. Had to wait 5 hours for a connecting flight that had a 7 hour layover. Would not allow bags to be checked early so we couldn’t go through security .Had to rent a car for the afternoon to store bags and get a meal. Also incurred a hotel fee. No apology or reason given for the cancellation- just rudeness.

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.
5/20Mon
1 stopSpirit Airlines
13h 32mSJU-STL
$102
5/15Wed
1 stopFrontier
11h 40mSJU-STL
$109
5/15Wed
2 stopsSpirit Airlines
22h 33mSJU-STL
$114
5/25Sat
1 stopSpirit Airlines
16h 10mSJU-STL
$116
5/14Tue
1 stopFrontier
14h 47mSJU-STL
$121
8/22Thu
2 stopsAmerican Airlines
10h 11mSJU-STL
$192
8/8Thu
2 stopsAmerican Airlines
19h 05mSJU-STL
$254
5/25Sat
2 stopsUnited Airlines
15h 36mSJU-STL
$316
6/17Mon
2 stopsUnited Airlines
15h 36mSJU-STL
$366
5/14Tue
2 stopsAlaska Airlines
24h 14mSJU-STL
$1,054

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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.
5/11Sat
multi-stopSpirit Airlines
6h 28mSJU-STL
5/14Tue
multi-stopSpirit Airlines
6h 49mSTL-SJU
$297
5/11Sat
multi-stopSpirit Airlines
6h 28mSJU-STL
5/14Tue
multi-stopSpirit Airlines
6h 49mSTL-SJU
$359
5/10Fri
multi-stopUnited Airlines
10h 12mSJU-STL
5/14Tue
multi-stopUnited Airlines
8h 28mSTL-SJU
$654
5/10Fri
multi-stopUnited Airlines
15h 41mSJU-STL
5/14Tue
multi-stopUnited Airlines
8h 28mSTL-SJU
$699
5/10Fri
multi-stopUnited Airlines
9h 53mSJU-STL
5/14Tue
multi-stopUnited Airlines
8h 28mSTL-SJU
$714

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San Juan - St. Louis Flights

Departure:

San Juan (SJU)Puerto Rico

Destination:

St. Louis (STL)United States

Return flight deals:

St. Louis - San Juan

Cabin classes: