The cheapest times to fly from ISP to MRY are

  • January 1st to February 25th (except the week of February 12th)
  • April 16th to June 10th (except the week of May 14th)
  • July 9th to July 29th
  • October 29th to November 18th

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 ISP to MRY is late January. Prices can be as high as $1039 for Sunday flights during early to mid October, or as low as $303 for Tuesday flights around late January.


When to Fly to Monterey

Flying from Islip, NY (ISP) to Monterey, CA (MRY) will usually cost between $303 to $858 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late January with an average ticket price of $310. Due to high demand the most expensive time to fly is early to mid October, with an average price of $759. Planning your trip to low-cost times can easily save you $449 on economy flights and even more on first-class flights. Generally, any price below $496 can be considered a good price for a round-trip ISP to MRY flight.

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

ISP to MRY Flight Prices

Compared to other flights, the ISP to MRY flight is much cheaper than the average and costs much less than the average flight leaving from Islip. The average price per mile (for a direct flight) is $0.12, which is far 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 $318 (42%) 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 $409. Return trip prices are from the MRY to ISP 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 ISP to MRY can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 5 hour 41 minutes may not be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from ISP to MRY while comparing.

Destination alternative #1: San Francisco International Airport (SFO) in San Francisco, CA

  • 77 miles (124 km) away from MRY
  • Usually 22.18% less expensive than MRY
  • 1-layover flights available

See ISP to SFO flights


Flight Questions Answered

Still have questions about flying from ISP to MRY? We’ve got answers.

Which airlines fly this route?

You can find 2 major airlines flying this route most often: American, United, and potentially more during busy seasons.

How far away is it from Monterey Regional Airport to Long Island MacArthur Airport?

The distance between the two airports is roughly 2610 miles or 4200 kilometers.

How long does it take to fly from ISP to MRY?

The real-world flight time for a nonstop ISP to MRY flight is about 5 hour 41 minutes.

How many flights go between Islip, NY and Monterey, CA?

It depends on the day of the week and the date, but a typical day might have around 11 available flights from ISP to MRY.


Airport Location Info


Departing Airport

Origination code ISP
Origination airport name Long Island MacArthur Airport
City Islip, NY
Country the United States
Latitude 40.8
Longitude -73.1

Return Airport

Destination code MRY
Destination airport name Monterey Regional Airport
City Monterey, CA
Country the United States
Latitude 36.6
Longitude -121.8


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.