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Cheap Flights from St Louis to San Juan, PR, United States - STL to SJU

Popular flights from St Louis to San Juan

If your flight days are flexible and you looking for a good deal, our charts on cheap flights provide some insight regarding affordable flight options for your next big adventure.

American Airlines
Departure Date Return Date Lowest Price
Apr 7, 2016 Apr 11, 2016 $341
United Airlines
Departure Date Return Date Lowest Price
Mar 14, 2016 Mar 21, 2016 $342
Mar 14, 2016 Mar 21, 2016 $342
Apr 7, 2016 Apr 11, 2016 $342

How Much Does it Cost to Fly from St Louis to San Juan (STL to SJU)?

We have collected flight cost data from across the web for travel from St Louis to San Juan, and have found the average flight price for this trip to be $349.

When Can I Buy the Cheapest Flight from St Louis to San Juan (STL to SJU)?

Airlines can adjust prices for plane tickets from St Louis to San Juan based on the day and time that you decide to book your flight. We have collected data from all airlines, and have discovered that the best days to book flights are Tuesdays, Wednesdays, and Saturdays. Read our article to find more information about the best time to buy airline tickets.

Cheapest Day To Fly from St Louis to San Juan

The chart below shows up-to-date information regarding the cheapest days to fly from St Louis to San Juan.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$342 $352 $352 $341 $352 $352 $352

Lowest Fares Chart By Month from St Louis to San Juan

The chart below shows the lowest fare by month when flying from St Louis to San Juan.

Month Origin Destination Carrier Depart Date Return Date Stops Price
February St Louis San Juan United 2/27/16 3/9/16 1 $375
March St Louis San Juan United 3/14/16 3/21/16 1 $342
April St Louis San Juan American 4/7/16 4/11/16 1 $341
May St Louis San Juan United 5/1/16 5/4/16 1 $352
June St Louis San Juan American 6/12/16 6/25/16 1 $341
July St Louis San Juan American 7/28/16 8/2/16 1 $354
August St Louis San Juan United 8/23/16 8/27/16 1 $352
September St Louis San Juan American 9/4/16 9/10/16 1 $355

Round Trip vs One Way Flights from St Louis to San Juan (STL to SJU)

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from St Louis to San Juan. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from St Louis to San Juan is $171.

The average price for round trip flights from St Louis to San Juan is $341.

St Louis to San Juan Flight Questions

Below are some common questions that asked about this flight route:

Question: What are the most popular connecting cities when flying from St Louis to San Juan?
Answer: Chicago, IL

Airlines Flying from St Louis to San Juan (STL to SJU)

Below are the different airlines that fly from St Louis to San Juan with the average price of their plane tickets. Just remember that different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary of the next 30 days for flights from St Louis to San Juan.

St Louis to San Juan
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American ORD X X X X X X X
Delta DTW X X X X X X X
United IAH X X X X X X X

Airports for Your Route

These pages contain information about the major airports in St Louis and San Juan, so you can feel comfortable knowing how to get around whether you are about to take off or you just landed.

Cheap Domestic Flights from St Louis - STL

FlightsAirlineLowest Price
St Louis to Aguadilla American, United $665
St Louis to Atlanta American, Alaska, Frontier, United $104
St Louis to New York American, Alaska, United $243
St Louis to Chicago American, United $205
St Louis to Dallas - Ft Worth American, Alaska, United $203
St Louis to Miami American, Frontier, United $255
St Louis to Orlando American, Frontier, United $124
St Louis to Ft Lauderdale American, United $252

Cheap International Flights from St Louis - STL

FlightsAirlineLowest Price
St Louis to St Thomas Island American, Alaska, JetBlue, Frontier, Spirit, United $468
St Louis to St Croix Island American, Alaska, United $458
St Louis to Punta Cana American, JetBlue, United $492
St Louis to St Maarten American, United $579
St Louis to Beef Island Cape Air, American, United $638
St Louis to Antigua American, LIAT, United $495
St Louis to St Kitts American, United $735
St Louis to Santo Domingo American, United $577
St Louis to Anguilla American, Tradewind, United $798
St Louis to Aruba American, United $432
St Louis to La Romana American, United $920

Cheap Domestic Flights to San Juan - SJU

FlightsAirlineLowest Price
Springfield to San Juan American, United $476
Peoria to San Juan American, United $484
Moline to San Juan American, United $504
Evansville to San Juan American, United $487
Bloomington - Normal to San Juan American $463

Cheap International Flights to San Juan - SJU

FlightsAirlineLowest Price
Springfield to St Thomas Island American, Seaborne, United $613
Peoria to St Thomas Island American, United $576
Moline to St Thomas Island American, United $631
Evansville to St Thomas Island American, United $688
Moline to Punta Cana American, United $519
Springfield to Punta Cana American, United $690
Cheap Flights from St Louis to San Juan, PR, United States, from $341 Round trip from STL to SJU