Cheap flights from St. Louis to San Juan Luis Munoz Marin Intl Airport from $65
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to San Juan Luis Munoz Marin Intl Airport departing on 4/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Deals available from 900+ travel sites.
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from St. Louis to San Juan
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Cheap bus & train deals from St. Louis to San Juan
All round-trip flight deals from St. Louis to San Juan
Spirit Airlines flights from St. Louis to San Juan Luis Munoz Marin Intl Airport
Our best Spirit Airlines deals on St. Louis to San Juan Luis Munoz Marin Intl Airport flight tickets
United Airlines flights from St. Louis to San Juan Luis Munoz Marin Intl Airport
Our best United Airlines deals on St. Louis to San Juan Luis Munoz Marin Intl Airport flight tickets
See travel insights to San Juan from
How to get the cheapest flight ticket from St. Louis to San Juan Luis Munoz Marin Intl Airport
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 to San Juan Luis Munoz Marin Intl Airport?
If you aren’t able to travel to San Juan Luis Munoz Marin Intl Airport during the month of April, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $353.
What is the cheapest day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?
On average, the least expensive day to fly to San Juan Luis Munoz Marin Intl Airport from St. Louis is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $404. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $492.
What is the cheapest time of day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?
The cheapest time of day to fly to San Juan Luis Munoz Marin Intl Airport is in the evening when flights can be purchased for as low as $310. Flights in the morning are often more expensive with an average ticket price of $554.
What is the cheapest Lambert-St Louis to San Juan Luis Munoz Marin Intl flight route?
Fly from Lambert-St Louis to San Juan Luis Munoz Marin Intl for the best Lambert-St Louis - San Juan Luis Munoz Marin Intl flight prices
How far in advance should I book a flight to San Juan Luis Munoz Marin Intl Airport?
You are more likely to see cheaper flights to San Juan Luis Munoz Marin Intl Airport from St. Louis when booking 10 weeks ahead of your departure date. In general, you can expect to find flights to San Juan Luis Munoz Marin Intl Airport for around $445 when searching 10 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan Luis Munoz Marin Intl Airport from St. Louis for as low as $367 on momondo.
What cabin class options are available on Lambert-St Louis to San Juan Luis Munoz Marin Intl flights?
There are 1 cabin classes available to choose from on Lambert-St Louis to San Juan Luis Munoz Marin Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Lambert-St Louis to San Juan Luis Munoz Marin Intl?
Frontier, Spirit Airlines, and Delta are the most popular carriers operating from Lambert-St Louis to San Juan Luis Munoz Marin Intl
What airlines fly to San Juan Luis Munoz Marin Intl Airport?
American Airlines, Delta and Frontier are the top three most popular airlines that fly to San Juan Luis Munoz Marin Intl Airport from St. Louis according to our data. American Airlines is the first choice among our users, with 51% of people opting to fly with this airline when traveling to San Juan Luis Munoz Marin Intl Airport. Keep in mind that there are 6 different airlines that fly to San Juan Luis Munoz Marin Intl Airport on a routine basis, so you have a few additional options to choose from.
When to book flights from St. Louis to San Juan Luis Munoz Marin Intl Airport
Cheap St. Louis to San Juan Luis Munoz Marin Intl Airport (STL to SJU) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to San Juan Luis Munoz Marin Intl Airport
How far is Lambert-St Louis to San Juan Luis Munoz Marin Intl by plane?
There are 2011.8 mi between Lambert-St Louis and San Juan Luis Munoz Marin Intl. A reasonable flight in good conditions will take 6h 27m.
When did momondo last update prices for flights from Lambert-St Louis Airport to San Juan Luis Munoz Marin Intl Airport?
Prices for flights from Lambert-St Louis Airport to San Juan Luis Munoz Marin Intl Airport are updated daily.
How many operators does momondo search for flights from Lambert-St Louis Airport to San Juan Luis Munoz Marin Intl Airport?
The number of operators available for flights from Lambert-St Louis Airport to San Juan Luis Munoz Marin Intl Airport is 6 as of January 2025.
How old do you have to be to fly from Lambert-St Louis Airport to San Juan Luis Munoz Marin Intl Airport?
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 Luis Munoz Marin Intl Airport.
What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?
The travel and health documents you'll need for your trip to San Juan Luis Munoz Marin Intl Airport 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 Luis Munoz Marin Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from St. Louis to San Juan Luis Munoz Marin Intl Airport?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from St. Louis to San Juan Luis Munoz Marin Intl Airport is Boeing 737 MAX 8 (62.50% of total bookings). The next most popular plane model is Boeing 737-700 Passenger/BBJ1 (winglets) (37.50%).
What is the most popular airline from St. Louis to San Juan Luis Munoz Marin Intl Airport?
Based on momondo bookings for this flight route, the most popular airline on flight routes from St. Louis to San Juan Luis Munoz Marin Intl Airport is American Airlines (44% of total bookings). The next most popular airlines are Delta (25%), Frontier (13%), and Spirit Airlines (7%).
Best airlines flying from St. Louis to San Juan Luis Munoz Marin Intl Airport
Compare and see reviews for airlines that fly from St. Louis to San Juan Luis Munoz Marin Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $150 | Free Cancellation | Rating 6.0 3,443 reviews | |||
| PriceFrom $174 | Free Cancellation | Rating 6.3 8,115 reviews | |||
| PriceFrom $254 | Free Cancellation | Rating 8.0 8,521 reviews | |||
| PriceFrom $264 | Free Cancellation | Rating 7.4 8,985 reviews | |||
| PriceFrom $269 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $375 | Free Cancellation | Rating 8.1 4,662 reviews |
Southwest Flights From St. Louis to San Juan Luis Munoz Marin Intl Airport
Southwest operates around 1 flight from St. Louis to San Juan Luis Munoz Marin Intl Airport every week. The average price of these flights found in the last 72 hours has been $576, but momondo users have found Southwest deals from St. Louis to San Juan Luis Munoz Marin Intl Airport from as low as $375 round-trip. Southwest has been scored 8.1/10 in 4,662 reviews.
Traveling to a place near San Juan?
Book flights to San Juan if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from St. Louis to San Juan?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to San Juan. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from St. Louis to San Juan with flexible booking policies on momondo?
All flight searches from St. Louis to San Juan on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from St. Louis to San Juan?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Juan from St. Louis.
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 offers price alerts on flights to San Juan from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.