Cheap flights from St. Louis (STL) to San Juan

STL — SJU
Feb 7 — Feb 141

How to find the cheapest flight from St. Louis (STL) to San Juan

All the information you need to plan the best STL to PR1 flight in 2023: compare St. Louis to San Juan flight prices with the expected peak season, weather and rainfall in San Juan.

STL - SJU

Price

$264 - $532

SJU

Temperature

77 - 82.4 °F

SJU

Rainfall

2.2 - 6.1 inches

Popular inJuneHigh demand for flights, 23% potential price rise
Cheapest inSeptemberBest time to find cheap flights, 35% potential price drop
Round-trip from$264From Lambert-St Louis to San Juan
One-way from$158One-way flight from Lambert-St Louis to San Juan

How far in advance should I book a flight from St. Louis to San Juan?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 27 days in advance, which can save you up to 34% on flights from St. Louis to San Juan compared to booking the week you need them. Waiting 27 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $426. For sooner than that we have options available in the next 3 days from $555.

What is the cheapest month to fly from St. Louis to San Juan?

September is one of the best times of the year to fly to San Juan from St. Louis. Prices for September average $408 per person but you can even find prices for as low as $188. The most expensive prices can be found in the month of June. Opting for a September flight can save you 30% on your journey compared to booking in June

When is the cheapest time to fly from St. Louis to San Juan (STL - SJU)?

When flying from St. Louis to San Juan, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap flights from St. Louis to San Juan in February, March 2023

The best prices found for STL to San Juan flights for February, March
Feb 11 - Feb 21
STL

Lambert-St Louis

SJU

San Juan Luis Munoz Marin Intl

1 stop

9h 46m
SJU

San Juan Luis Munoz Marin Intl

STL

Lambert-St Louis

1 stop

10h 17m
$164

Multiple Airlines

Pick Dates

Deal found 1/31

Feb 10 - Mar 6
STL

Lambert-St Louis

SJU

San Juan Luis Munoz Marin Intl

1 stop

17h 15m
SJU

San Juan Luis Munoz Marin Intl

STL

Lambert-St Louis

1 stop

12h 43m
$166

Multiple Airlines

Pick Dates

Deal found 1/31

Feb 7 - Feb 28
STL

Lambert-St Louis

SJU

San Juan Luis Munoz Marin Intl

1 stop

29h 24m
SJU

San Juan Luis Munoz Marin Intl

STL

Lambert-St Louis

1 stop

10h 03m
$167

Multiple Airlines

Pick Dates

Deal found 1/31

St. Louis to San Juan 2023 flight deals

Cheap flights to San Juan from St. Louis found for this year
May 9 - May 15
STL

Lambert-St Louis

SJU

San Juan Luis Munoz Marin Intl

1 stop

6h 57m
SJU

San Juan Luis Munoz Marin Intl

STL

Lambert-St Louis

1 stop

13h 21m
$164

Frontier

Pick Dates

Deal found 1/30

Feb 10 - Mar 6
STL

Lambert-St Louis

SJU

San Juan Luis Munoz Marin Intl

1 stop

17h 15m
SJU

San Juan Luis Munoz Marin Intl

STL

Lambert-St Louis

1 stop

12h 43m
$166

Multiple Airlines

Pick Dates

Deal found 1/31

Feb 7 - Feb 28
STL

Lambert-St Louis

SJU

San Juan Luis Munoz Marin Intl

1 stop

29h 24m
SJU

San Juan Luis Munoz Marin Intl

STL

Lambert-St Louis

1 stop

10h 03m
$167

Multiple Airlines

Pick Dates

Deal found 1/31

Cheap Frontier flights from St. Louis to San Juan

May 9 - May 15
STL

Lambert-St Louis

SJU

San Juan Luis Munoz Marin Intl

1 stop

6h 57m
SJU

San Juan Luis Munoz Marin Intl

STL

Lambert-St Louis

1 stop

13h 21m
$164

Frontier

Pick Dates

Deal found 1/30

Feb 12 - Feb 23
STL

Lambert-St Louis

SJU

San Juan Luis Munoz Marin Intl

1 stop

12h 18m
SJU

San Juan Luis Munoz Marin Intl

STL

Lambert-St Louis

1 stop

12h 22m
$169

Frontier

Pick Dates

Deal found 1/31

Feb 12 - Feb 22
STL

Lambert-St Louis

SJU

San Juan Luis Munoz Marin Intl

1 stop

14h 24m
SJU

San Juan Luis Munoz Marin Intl

STL

Lambert-St Louis

1 stop

14h 24m
$170

Frontier

Pick Dates

Deal found 1/31

Cheap Spirit Airlines flights from St. Louis to San Juan

Feb 7 - Mar 8
STL

Lambert-St Louis

SJU

San Juan Luis Munoz Marin Intl

1 stop

9h 55m
SJU

San Juan Luis Munoz Marin Intl

STL

Lambert-St Louis

1 stop

8h 39m
$194

Spirit Airlines

Pick Dates

Deal found 1/31

Feb 15 - Feb 21
STL

Lambert-St Louis

SJU

San Juan Luis Munoz Marin Intl

1 stop

15h 07m
SJU

San Juan Luis Munoz Marin Intl

STL

Lambert-St Louis

1 stop

10h 17m
$197

Spirit Airlines

Pick Dates

Deal found 2/1

Feb 12 - Feb 22
STL

Lambert-St Louis

SJU

San Juan Luis Munoz Marin Intl

1 stop

13h 57m
SJU

San Juan Luis Munoz Marin Intl

STL

Lambert-St Louis

1 stop

17h 45m
$205

Spirit Airlines

Pick Dates

Deal found 2/2

Last minute flights from St. Louis to San Juan

Late deals on return flights to San Juan from St. Louis, departing today and this week
Feb 11 - Feb 21
STL

Lambert-St Louis

SJU

San Juan Luis Munoz Marin Intl

1 stop

9h 46m
SJU

San Juan Luis Munoz Marin Intl

STL

Lambert-St Louis

1 stop

10h 17m
$164

Multiple Airlines

Pick Dates

Deal found 1/31

Feb 10 - Mar 6
STL

Lambert-St Louis

SJU

San Juan Luis Munoz Marin Intl

1 stop

17h 15m
SJU

San Juan Luis Munoz Marin Intl

STL

Lambert-St Louis

1 stop

12h 43m
$166

Multiple Airlines

Pick Dates

Deal found 1/31

Feb 7 - Feb 28
STL

Lambert-St Louis

SJU

San Juan Luis Munoz Marin Intl

1 stop

29h 24m
SJU

San Juan Luis Munoz Marin Intl

STL

Lambert-St Louis

1 stop

10h 03m
$167

Multiple Airlines

Pick Dates

Deal found 1/31

One-way flights to San Juan from St. Louis

The cheapest one-way flights from St. Louis to San Juan
Feb 7
STL

Lambert-St Louis

SJU

San Juan Luis Munoz Marin Intl

1 stop

14h 24m
$82

Frontier

Pick Dates

Deal found 1/30

Mar 27
STL

Lambert-St Louis

SJU

San Juan Luis Munoz Marin Intl

1 stop

10h 55m
$83

Frontier

Pick Dates

Deal found 2/1

Feb 8
STL

Lambert-St Louis

SJU

San Juan Luis Munoz Marin Intl

1 stop

9h 19m
$85

Multiple Airlines

Pick Dates

Deal found 1/31

Reviews of Airlines Servicing San Juan

Spirit Airlines
6.9
Okay
716 reviews

Overall

6.9

Boarding

7.2

Food

5.6

Entertainment

5.6

Crew

7.4

Comfort

6.4

Reviews

1 / 10

Everything was great except Spirit airlines damaged my brand new Porta Suitcase that I purchased in Peru. When I retrieved my Checked suitcase at ft Lauderdale Airport, my suitcase was damaged with a dent on 1 of the corners of suitcase

Spirit Airlines
6.9
Okay
716 reviews
Spirit Airlines
6.9
Okay
716 reviews

Overall

6.9

Boarding

7.2

Food

5.6

Entertainment

5.6

Crew

7.4

Comfort

6.4

Reviews

1 / 10

Everything was great except Spirit airlines damaged my brand new Porta Suitcase that I purchased in Peru. When I retrieved my Checked suitcase at ft Lauderdale Airport, my suitcase was damaged with a dent on 1 of the corners of suitcase

Frontier
6.1
Okay
537 reviews
Spirit Airlines
6.9
Okay
716 reviews

Overall

6.9

Boarding

7.2

Food

5.6

Entertainment

5.6

Crew

7.4

Comfort

6.4

Reviews

1 / 10

Everything was great except Spirit airlines damaged my brand new Porta Suitcase that I purchased in Peru. When I retrieved my Checked suitcase at ft Lauderdale Airport, my suitcase was damaged with a dent on 1 of the corners of suitcase

Related info for your journey

Useful info, stats and facts about St. Louis to San Juan flights.

What airport do you fly from for flights from St. Louis to San Juan?

Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to San Juan. On average, Lambert-St Louis has 1 outbound flight to San Juan per day from 11 airlines. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

Which airlines flying from Lambert-St Louis to San Juan have flexible cancellations due to COVID-19?

American Airlines, Spirit Airlines, and Frontier are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from St. Louis to San Juan for under $200 on Cheapflights?

Yes, there are multiple flights from St. Louis to San Juan for under $200. The cheapest flight booked recently is on Frontier for just $164, but on average you can expect to pay $181.

Are there last-minute flights available from St. Louis to San Juan for under $200?

There are currently 20+ open flights from St. Louis to San Juan within the next 7 days for less than $200.

What days are nonstop flights available from St. Louis to San Juan?

Nonstop flights are available for this route on the following days: Friday.

How many flights depart from St. Louis to San Juan on average per day?

1 flight departure from St. Louis to San Juan per day on average.
Morning (6am - Noon) - 100% of flight departures

How long is the flight from St. Louis to San Juan?

For as low as $164, Frontier can have you in San Juan from St. Louis in 6h 57m. The distance between St. Louis and San Juan is about 2036 mi. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines flying from St. Louis to San Juan round-trip?

Our cheapest airline available from St. Louis to San Juan is Frontier. Our recent data shows that you can find tickets from as low as $164 on this airline. An additional option worth looking into is Spirit Airlines, starting at $197. Frontier is 59% cheaper than the average price of flights available within the next 90 days to this destination.

What are the most popular airlines that fly from St. Louis to San Juan?

Consider Undisclosed Carrier, American Airlines or Alaska Airlines when booking your flight. These represent the most popular airlines when flying from St. Louis to San Juan.

What are the cheapest flights from St. Louis to San Juan?

The cheapest flight price from St. Louis to San Juan is $85. On average you can expect to pay $724. The most popular route, (Lambert-St Louis - San Juan Luis Munoz Marin Intl), can usually be booked for $164.

Alternative routes for St. Louis to San Juan

See prices for flight routes from nearby airports that may be better suited for you.

Top 8 airlines flying from St. Louis to San Juan

The chart below displays the airlines Cheapflights users traveling from St. Louis to San Juan choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Juneyao AirlinesCheapest$14Average$19FlexibilityNo cancel feeOn-time66%COVID-19 safety
Search Juneyao Airlines flights
FrontierCheapest$153Average$227FlexibilityNo cancel feeOn-time62%COVID-19 safety
Search Frontier flights
Spirit AirlinesCheapest$196Average$405FlexibilityNo cancel feeOn-time65%COVID-19 safety
Search Spirit Airlines flights
United AirlinesCheapest$296Average$590FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights
American AirlinesCheapest$381Average$564FlexibilityNo cancel feeOn-time71%COVID-19 safety
Search American Airlines flights
DeltaCheapest$422Average$677FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights
Alaska AirlinesCheapest$523Average$668FlexibilityNo cancel feeOn-time75%COVID-19 safety
Search Alaska Airlines flights
Linear Air TaxiCheapest$19,296Average$65,701FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Linear Air Taxi flights

Hourly flight availability from St. Louis to San Juan

See what time of day planes typically take off from St. Louis to San Juan
0%of flight departuresEarly morningMidnight to 6 am
50%of flight departuresMorning6 am to noon
50%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from St. Louis to San Juan

See how many times per day planes take to the skies headed from St. Louis to San Juan
Sunday0daily flights
Monday2daily flights
Tuesday2daily flights
Wednesday2daily flights
Thursday2daily flights
Friday2daily flights
Saturday0daily flights
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