Cheap flights from Cyril E. King to San Juan Luis Munoz Marin

Compare Cyril E. King to San Juan Luis Munoz Marin flight deals

Find the cheapest month or even day of the year to fly to San Juan Luis Munoz Marin

Book the best San Juan Luis Munoz Marin fare with no extra fees

Flight deals from Cyril E. King to San Juan Luis Munoz Marin

Looking for a cheap last-minute deal or the best return flight from Cyril E. King to San Juan Luis Munoz Marin? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Cyril E. King to San Juan Luis Munoz Marin

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Cyril E. King to San Juan Luis Munoz Marin flights are currently cheapest in February.

Direct flights from Cyril E. King to San Juan Luis Munoz Marin

Saint Thomas to San Juan: Flight information

The things to know before you go.
Cheapest flight found$227
Cheapest month to flyFebruary
Average flight time44 mins
Most popular airlinejetBlue
Average flights per week160

Finding cheap flights from Cyril E. King to San Juan Luis Munoz Marin: Frequently asked questions

The best price we found for a return flight from Cyril E. King to San Juan Luis Munoz Marin is $482. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
44 minutes is the average flight time from Cyril E. King to San Juan Luis Munoz Marin.
jetBlue, Cape Air and Qatar Airways fly direct from Cyril E. King to San Juan Luis Munoz Marin.
As of February 2026, there are 160 flights per week flying from Cyril E. King to San Juan Luis Munoz Marin.
The cheapest month to fly from Cyril E. King to San Juan Luis Munoz Marin is usually April.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Cyril E. King Airport to San Juan Luis Munoz Marin Airport on Thursday, 16 April 2026.
Yes – the average flight time is 44 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Juan Luis Munoz Marin but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Juan is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Cape Air offers the cheapest flight tickets to San Juan Luis Munoz Marin.

Flying from Cyril E. King Airport (STT) to Luis Munoz Marin International Airport (SJU): what you need to know

  • The average length of a direct flight from Cyril E. King Airport to Luis Munoz Marin International Airport is 40 minutes.

  • You can choose from 398 weekly Cyril E. King Airport to Luis Munoz Marin International Airport flights. The 07:40 departure with Cape Air is the earliest you can take. Cape Air operates the last service of the day at 18:10.

  • For a smooth journey, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This will give you plenty of time to board your STT to SJU flight.

  • Travelling during a peak month such as July? School holidays and other high seasons can result in longer queues and delays at airport checkpoints. Play things extra safe and get there up to four hours ahead of international flights and two hours before domestic departures.

  • There are plenty of direct flights from Cyril E. King Airport to Luis Munoz Marin International Airport, so getting to San Juan (and then exploring more of Puerto Rico!) is a cinch. Popular carriers that fly nonstop include:

  • Silver Airways is the airline most travellers choose for this route.

  • With 78.2% of its services arriving as planned, Silver Airways is the most punctual carrier offering STT to SJU flights.

  • If you'd like to break up your flight, just deselect 'Direct flights only' when searching for your ticket from Cyril E. King Airport to Luis Munoz Marin International Airport. Here are the most popular stopovers between STT and SJU:

    • Henry E. Rohlsen Airport

    • Terrance B. Lettsome International Airport

    • Fort Lauderdale-Hollywood International Airport

How to find the cheapest flights from Cyril E. King Airport (STT) to Luis Munoz Marin International Airport (SJU)

  • Right now, $227 is the cheapest price we've seen for a one-way Cyril E. King Airport to Luis Munoz Marin International Airport flight. The best price for a return plane ticket is $482. Bear in mind that fares may change due to availability when booking.

  • Book five months before you want to fly. After looking at the numbers on our calendar, this is how far you should book ahead to find cheap tickets from STT to SJU.

  • Organise your trip for April. That's the cheapest month for flights from Cyril E. King Airport to Luis Munoz Marin International Airport. If your travel dates are flexible, use the 'Whole month' tool to see the cheapest airfare across each month.

  • You don't need to check back in every day to see if fares have dropped when you create a Price Alert. We'll notify you as soon as a special offer becomes available on cheap flights from STT to SJU.

  • Tailor your flights with filters. Select your departure and arrival times, total journey duration and airlines. You can also sort your results by 'Cheapest,' 'Best' or 'Fastest' flights from Cyril E. King Airport to Luis Munoz Marin International Airport.

Handy information about Cyril E. King Airport (STT)

  • When it comes to Cyril E. King Airport's on-time performance, 74.5% of flights arrive within the expected timeframe.

Arriving at Luis Munoz Marin International Airport (SJU)

Getting from Luis Munoz Marin International Airport (SJU) to central San Juan

  • From Luis Munoz Marin International Airport, San Juan is approximately 8 kilometres away. It takes around 10 minutes to reach the centre driving.

  • It takes roughly 55 minutes to get there by public transport.

When to fly to Luis Munoz Marin International Airport (SJU)

  • July is the most popular month for flights from Cyril E. King Airport to Luis Munoz Marin International Airport. To skip the crowds, visit San Juan in May.

  • Before locking in your flight from Cyril E. King Airport to Luis Munoz Marin International Airport, think about the type of weather you like. September is the warmest month in San Juan, with temperatures ranging from 23ºC (73ºF) to 33ºC (91ºF).

  • If you'd rather travel in cooler conditions, search for a cheap ticket from STT to SJU in February. Temperatures average between 20ºC (68ºF) and 28ºC (82ºF) then.

Explore more of Puerto Rico

  • Bayamon is just one of the many places in Puerto Rico waiting to be discovered once you've seen San Juan. Around 10 kilometres away to the west, well-known attractions include Plazoleta Ignacio Zorrilla, La Plaza de la Bomba Puertorriqueña, Monumento a los Trovadores and Parque Palm Court.

  • Around 11 kilometres east of San Juan, Carolina is another favourite stop in Puerto Rico. No visit is complete without checking out Isla Verde Beach, Parque de Doble A Roberto Clemente Walker and Drone Zone Track.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.