The cheapest times to fly from SLK to SJU are

  • January 1st to February 11th
  • July 30th to December 16th

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from SLK to SJU is early September. Prices can be as high as $1541 for Sunday flights during early to mid May, or as low as $494 for Tuesday flights around early September.


When to Fly to San Juan

Flying from Saranac Lake/Lake Placid, NY (SLK) to San Juan, PR (SJU) will usually cost between $504 to $1114 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early September with an average ticket price of $504. Due to high demand the most expensive time to fly is early to mid May, with an average price of $1202. Planning your trip to low-cost times can easily save you $698 on economy flights and even more on first-class flights. Generally, any price below $747 can be considered a good price for a round-trip SLK to SJU flight.

See below for a graph of average weekly prices for the SLK to SJU route. All prices are for round-trip tickets in USD.

SLK to SJU Flight Prices

Compared to other flights, the SLK to SJU flight is cheaper than the average and costs much less than the average flight leaving from Saranac Lake. The average price per mile (for a direct flight) is $0.25, which is below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $139 (17%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $692. Return trip prices are from the SJU to SLK flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from SLK to SJU can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 4 hour 19 minutes may not be realistic.


Flight Hacking SLK to SJU

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from SLK to SJU — but Champion Traveler does!

Hack #1: Boston, MA (SLK > BOS > SJU)

  • Price for both tickets: $629
  • Average savings: $118 (15.74%)

See SLK to BOS flights


Flight Questions Answered

Still have questions about flying from SLK to SJU? We’ve got answers.

Which airlines fly this route?

You can find 6 major airlines flying this route most often: American, Cape Air, Delta, Frontier, JetBlue, United, and potentially more during busy seasons.

How far away is it from Luis Munoz Marin International Airport to Adirondack Regional Airport?

The distance between the two airports is roughly 1854 miles or 2984 kilometers.

How long does it take to fly from SLK to SJU?

The real-world flight time for a nonstop SLK to SJU flight is about 4 hour 19 minutes.

How many flights go between Saranac Lake/Lake Placid, NY and San Juan, PR?

It depends on the day of the week and the date, but a typical day might have around 7 available flights from SLK to SJU.


Airport Location Info


Departing Airport

Origination codeSLK
Origination airport nameAdirondack Regional Airport
CitySaranac Lake/Lake Placid, NY
Countrythe United States

Return Airport

Destination codeSJU
Destination airport nameLuis Munoz Marin International Airport
CitySan Juan, PR
Countrythe United States


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.