Get more for your budget and save up to 50% off select Secret Bargain hotels
Get even more value with CheapTickets Price Guarantee!
Change your flight without a fee on select flights
Cheapest prices ($108 One Way, $171 Round Trip) found within past 7 days. Prices and availability subject to change. Additional terms may apply.
Reviewed on Jan 24, 2023
Reviewed on Feb 6, 2023
Reviewed on Feb 1, 2023
Number of Daily Flights
Earliest Flight Departure Date
Latest Flight Departure Date
Sign up for CheapTickets Deals E-mail, so you'll receive late-breaking alerts about airfare sales on cheap flights from St. Louis to San Juan.
Add your frequent flier numbers when you book your cheap flights from St. Louis to San Juan on CheapTickets and accumulate miles on applicable flights. Also, use our interactive maps to select your seats on flights from St. Louis to San Juan — aisle or window, front or back. We're not just concerned about finding you cheap flights from St. Louis to San Juan, we want to ensure you get your airline miles and preferred seats too.
When you book your St. Louis to San Juan flights on CheapTickets, you get free, real-time trip updates on your mobile phone. CheapTickets has a staff of air traffic analysts and travel experts monitoring events that could delay your St. Louis to San Juan flights. Choose to have your alerts sent to up to six others, like the person picking you up at the San Juan airport.
Change your cheap flights from St. Louis to San Juan online with CheapTickets. No phone calls, no waiting. We'll let you know if there's part of your airfare that can be put toward a future flights from St. Louis to San Juan. Travel should be a pleasure, so that's why we strive to get you the best deal on cheap flights from St. Louis to San Juan and provide the travel support you deserve.