Flights
Hotels
From
To
1 traveler
Unsupported Browser!
Find Flights
Flights
Hotels
1 traveler
Unsupported Browser!
Find Flights

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

Popular flights from St Louis to San Juan

We’ve got the inside scoop on finding the best time to fly for the best price. Not sure when to travel for your next vacation? Find details below on when-to-fly and when-to-buy.

Alaska Airlines
Departure Date Return Date Lowest Price
Jun 7, 2016 Jun 21, 2016 $441
American Airlines
Departure Date Return Date Lowest Price
Jul 13, 2016 Jul 23, 2016 $355
JetBlue Airways
Departure Date Return Date Lowest Price
Jun 9, 2016 Jun 13, 2016 $650
United Airlines
Departure Date Return Date Lowest Price
Aug 23, 2016 Aug 30, 2016 $358
Aug 24, 2016 Aug 31, 2016 $358

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 $359.

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
$360 $360 $355 $361 $360 $360 $358

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
May St Louis San Juan American 5/29/16 6/1/16 1 $358
June St Louis San Juan American 6/7/16 6/21/16 1 $360
July St Louis San Juan American 7/13/16 7/23/16 1 $355
August St Louis San Juan United 8/23/16 8/30/16 1 $358
September St Louis San Juan American 9/8/16 9/12/16 1 $358
October St Louis San Juan American 10/3/16 10/7/16 1 $360
November St Louis San Juan American 11/24/16 11/30/16 1 $360
December St Louis San Juan United 12/10/16 12/16/16 2 $358

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 $219.

The average price for round trip flights from St Louis to San Juan is $409.

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 MIA X X X X X X X
Delta ATL 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 $500
St Louis to Atlanta American, Alaska, Frontier, United $88
St Louis to New York American, Alaska, United $252
St Louis to Chicago American, Alaska, United $213
St Louis to Dallas - Ft Worth American, Alaska, United $203
St Louis to Miami American, Alaska, United $328
St Louis to Orlando American, Alaska, JetBlue, Frontier, United $128
St Louis to Ft Lauderdale American, United $325

Cheap International Flights from St Louis - STL

FlightsAirlineLowest Price
St Louis to St Thomas Island American, Alaska, JetBlue, Spirit, United $342
St Louis to St Croix Island American, Alaska, United $475
St Louis to Punta Cana American, Alaska, Frontier, United $506
St Louis to St Maarten American, Alaska, JetBlue, United $597
St Louis to Beef Island American, Alaska, United $655
St Louis to Antigua American, Alaska, LIAT, United, Virgin America $588
St Louis to St Kitts American, Alaska, United $780
St Louis to Santo Domingo Silver, American, Alaska, JetBlue, United $657
St Louis to Anguilla American, United Check Dates
St Louis to Aruba American, Alaska, United $494
St Louis to La Romana American, United $848

Cheap Domestic Flights to San Juan - SJU

FlightsAirlineLowest Price
Springfield to San Juan American, United $497
Peoria to San Juan American, United $453
Moline to San Juan American, United $462
Evansville to San Juan American, United $559
Bloomington - Normal to San Juan Silver, American, United $478

Cheap International Flights to San Juan - SJU

FlightsAirlineLowest Price
Springfield to St Thomas Island American, United $601
Peoria to St Thomas Island American, United $582
Moline to St Thomas Island American, United $632
Evansville to St Thomas Island American, United $636
Moline to Punta Cana American, United $705
Springfield to Punta Cana American, United $744
Cheap Flights from St Louis to San Juan, PR, United States, from $355 Round trip from STL to SJU