Cheap flights from St. Louis to San Juan from $104

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Flight information for St. Louis to San Juan

Find info about flight duration, direct flights, and airports for your flight from St. Louis to San Juan

Best Price Found

$104

Fastest flight time

4h 10m

Direct flights

Sat

Airports in San Juan

1 airport
The best one-way flight to San Juan from St. Louis in the past 72 hours is $104. The best round-trip flight deal from St. Louis to San Juan found on momondo in the last 72 hours is $193.
The fastest flight from St. Louis to San Juan takes 4h 10m
Direct flights go from St. Louis to San Juan on Saturday. The only airline offering direct flights is Southwest.
There is 1 airport near San Juan: San Juan Luis Munoz Marin Intl (SJU)

How to get the cheapest flight ticket from St. Louis to San Juan

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

September. The cheapest time of year to fly to San Juan from St. Louis is September. Most expensive is June

What is the cheapest airline that flies to San Juan from St. Louis?

Frontier. American Airlines, Delta, and Frontier are the most popular carriers operating from St. Louis to San Juan

What is the cheapest St. Louis to San Juan flight route?

Lambert-St Louis - San Juan Luis Munoz Marin Intl. Fly from Lambert-St Louis to San Juan Luis Munoz Marin Intl for the best St. Louis - San Juan flight prices

How far in advance should you book St. Louis to San Juan flights?

24 days before. The cheapest time to buy a flight from St. Louis to San Juan is approximately 24 days to departure

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

The number of flights available between St. Louis and San Juan is 2 per week as of September 2023. The most frequent departure day is Saturday, with 100% of weekly flights leaving on this day.

Can stopping save me money on St. Louis to San Juan flights?

You could potentially save up to 27% on your flight if you consider stops on a St. Louis to San Juan flight.

When traveling from St. Louis to San Juan, the most popular airport to fly into is San Juan Luis Munoz Marin Intl Airport. The majority of travelers flying into San Juan Luis Munoz Marin Intl Airport from St. Louis are departing from Lambert-St Louis Airport. You may be looking for an airport near Lambert-St Louis Airport to depart from when traveling to San Juan and Springfield Capital Airport, located in Springfield is a great option. You may be looking for an airport near San Juan Luis Munoz Marin Intl Airport to land at when traveling from St. Louis and Culebra Airport, located in Culebra is a great option. The cheapest route from St. Louis to San Juan is STL — SJU with an average price of $140 RT during the month of September.

Lambert-St Louis Airport (STL) to San Juan Luis Munoz Marin Intl Airport (SJU)$140
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Springfield Capital Airport (SPI) to San Juan Luis Munoz Marin Intl Airport (SJU)$613
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Lambert-St Louis Airport (STL) to Culebra Airport (CPX)$720
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Easily compare round-trip flights from St. Louis to San Juan

Below you can see the best fares for your round-trip flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from St. Louis to San Juan by changing tabs
Multiple Airlines
Nov 29
STL11:24 amLambert-St Louis
9h 21m
1 stop
SJU9:45 pmSan Juan Luis Munoz Marin Intl
Dec 3
SJU10:56 pmSan Juan Luis Munoz Marin Intl
12h 07m
1 stop
STL11:03 amLambert-St Louis
Spirit Airlines
Nov 8
STL11:40 amLambert-St Louis
7h 45m
1 stop
SJU8:25 pmSan Juan Luis Munoz Marin Intl
Nov 13
SJU9:15 pmSan Juan Luis Munoz Marin Intl
15h 19m
2 stops
STL12:34 pmLambert-St Louis
Frontier
Jan 26
STL4:00 pmLambert-St Louis
12h 08m
1 stop
SJU5:08 amSan Juan Luis Munoz Marin Intl
Feb 11
SJU5:02 pmSan Juan Luis Munoz Marin Intl
11h 42m
1 stop
STL4:44 amLambert-St Louis
American Airlines
Feb 20
STL9:39 amLambert-St Louis
5h 55m
1 stop
SJU4:34 pmSan Juan Luis Munoz Marin Intl
Mar 6
SJU11:20 amSan Juan Luis Munoz Marin Intl
7h 09m
1 stop
STL6:29 pmLambert-St Louis
United Airlines
Jan 27
STL3:00 amLambert-St Louis
14h 36m
2 stops
SJU6:36 pmSan Juan Luis Munoz Marin Intl
Feb 9
SJU10:46 amSan Juan Luis Munoz Marin Intl
7h 55m
1 stop
STL6:41 pmLambert-St Louis
Multiple Airlines
Nov 30
STL4:00 pmLambert-St Louis
27h 28m
1 stop
SJU8:28 pmSan Juan Luis Munoz Marin Intl
Dec 5
SJU5:25 amSan Juan Luis Munoz Marin Intl
9h 31m
1 stop
STL2:56 pmLambert-St Louis

Find the cheapest one-way flights from St. Louis to San Juan

If you're looking for one-way flights from St. Louis to San Juan, view some of our deals below provided by Frontier and Spirit Airlines
Spirit Airlines
Oct 4
STL9:35 amLambert-St Louis
10h 48m
1 stop
SJU8:23 pmSan Juan Luis Munoz Marin Intl
Frontier
Nov 12
STL10:34 amLambert-St Louis
18h 39m
1 stop
SJU6:13 amSan Juan Luis Munoz Marin Intl
Multiple Airlines
Nov 16
STL4:14 pmLambert-St Louis
16h 22m
1 stop
SJU9:36 amSan Juan Luis Munoz Marin Intl

Search last-minute flights to San Juan from St. Louis

Find and compare round-trip flight prices for your last-minute flight from St. Louis to San Juan
Multiple Airlines
Oct 7
STL2:01 pmLambert-St Louis
7h 30m
1 stop
SJU9:31 pmSan Juan Luis Munoz Marin Intl
Oct 15
SJU6:09 pmSan Juan Luis Munoz Marin Intl
20h 50m
1 stop
STL2:59 pmLambert-St Louis
Spirit Airlines
Oct 5
STL4:05 pmLambert-St Louis
27h 37m
1 stop
SJU7:42 pmSan Juan Luis Munoz Marin Intl
Oct 10
SJU6:09 pmSan Juan Luis Munoz Marin Intl
18h 25m
1 stop
STL12:34 pmLambert-St Louis
Frontier
Oct 7
STL2:01 pmLambert-St Louis
7h 30m
1 stop
SJU9:31 pmSan Juan Luis Munoz Marin Intl
Oct 14
SJU11:31 pmSan Juan Luis Munoz Marin Intl
21h 13m
1 stop
STL8:44 pmLambert-St Louis
American Airlines
Oct 7
STL1:09 amLambert-St Louis
10h 34m
2 stops
SJU11:43 amSan Juan Luis Munoz Marin Intl
Oct 15
SJU4:00 amSan Juan Luis Munoz Marin Intl
16h 51m
1 stop
STL8:51 pmLambert-St Louis
Multiple Airlines
Oct 7
STL2:01 pmLambert-St Louis
7h 30m
1 stop
SJU9:31 pmSan Juan Luis Munoz Marin Intl
Oct 15
SJU6:09 pmSan Juan Luis Munoz Marin Intl
20h 50m
1 stop
STL2:59 pmLambert-St Louis
Multiple Airlines
Oct 5
STL2:12 pmLambert-St Louis
6h 49m
1 stop
SJU9:01 pmSan Juan Luis Munoz Marin Intl
Oct 10
SJU10:45 amSan Juan Luis Munoz Marin Intl
25h 49m
1 stop
STL12:34 pmLambert-St Louis

Best airlines flying from St. Louis to San Juan

Compare and see reviews for airlines that fly from St. Louis to San Juan with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $166Free CancellationRating
5.8
1,041 reviews
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Spirit AirlinesPriceFrom $178Free CancellationRating
6.0
2,809 reviews
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DeltaPriceFrom $271Free CancellationRating
7.8
1,565 reviews
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American AirlinesPriceFrom $276Free CancellationRating
7.1
2,890 reviews
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United AirlinesPriceFrom $281Free CancellationRating
7.2
2,716 reviews
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Linear Air TaxiPriceFrom $12,057Free CancellationRating
0.0
0 reviews
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Spirit Airlines flights from St. Louis to San Juan

Our best Spirit Airlines deals on St. Louis to San Juan flight tickets
Spirit Airlines
Nov 8
STL11:40 amLambert-St Louis
7h 45m
1 stop
SJU8:25 pmSan Juan Luis Munoz Marin Intl
Nov 13
SJU9:15 pmSan Juan Luis Munoz Marin Intl
15h 19m
2 stops
STL12:34 pmLambert-St Louis
Spirit Airlines
Nov 8
STL11:40 amLambert-St Louis
7h 45m
1 stop
SJU8:25 pmSan Juan Luis Munoz Marin Intl
Nov 14
SJU1:26 amSan Juan Luis Munoz Marin Intl
11h 08m
2 stops
STL12:34 pmLambert-St Louis
Spirit Airlines
Nov 8
STL11:40 amLambert-St Louis
7h 45m
1 stop
SJU8:25 pmSan Juan Luis Munoz Marin Intl
Nov 14
SJU10:45 amSan Juan Luis Munoz Marin Intl
26h 19m
1 stop
STL1:04 pmLambert-St Louis

Frontier flights from St. Louis to San Juan

Our best Frontier deals on St. Louis to San Juan flight tickets
Frontier
Jan 26
STL4:00 pmLambert-St Louis
12h 08m
1 stop
SJU5:08 amSan Juan Luis Munoz Marin Intl
Feb 11
SJU5:02 pmSan Juan Luis Munoz Marin Intl
11h 42m
1 stop
STL4:44 amLambert-St Louis
Frontier
Oct 19
STL2:12 pmLambert-St Louis
20h 04m
1 stop
SJU10:16 amSan Juan Luis Munoz Marin Intl
Oct 23
SJU9:26 amSan Juan Luis Munoz Marin Intl
11h 18m
1 stop
STL8:44 pmLambert-St Louis
Frontier
Nov 30
STL4:00 pmLambert-St Louis
27h 28m
1 stop
SJU8:28 pmSan Juan Luis Munoz Marin Intl
Dec 4
SJU10:56 pmSan Juan Luis Munoz Marin Intl
29h 58m
1 stop
STL4:54 amLambert-St Louis

  • How far is Lambert-St Louis to San Juan by plane?

    There are 2005.8 mi between Lambert-St Louis and San Juan. In terms of flight time, this usually takes a little over 5h 51m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to San Juan?

    Prices for flights from Lambert-St Louis Airport to San Juan are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to San Juan?

  • How old do you have to be to fly from Lambert-St Louis Airport to San Juan?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to San Juan.

  • What documentation or ID do you need to fly to San Juan?

    The travel and health documents you'll need for your trip to San Juan may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Juan. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.


Alternative routes for St. Louis to San Juan

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Kansas City to San Juan Flights
Fastest flight time6h 42m
Cheapest price$244

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Why use momondo?

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Can I find flights from St. Louis to San Juan with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for St. Louis to San Juan flights to just show those with flexible booking policies.

How can momondo help me find flights from St. Louis to San Juan?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to San Juan.

I’m not ready to book a flight from St. Louis to San Juan right now. Can momondo alert me if prices change?

Yes. momondo can track prices for St. Louis to San Juan flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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