How long is the flight from Islip, New York to Montrose?

For as low as $1,159, Southwest can have you in Montrose from Islip, New York in 11h 35m. Airlines will cover a distance of 1844 mi.

In terms of precipitation, rainfall in Montrose ranges from 0.4 - 1.2 inches per month. August is typically the wettest month, when rainfall can reach 1.2 in. January is typically the driest time to visit Montrose when rainfall is around 0.4 in.

If weather is an important factor for your trip to Montrose, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

What is the cheapest time of day to fly from ISP to MTJ?

When flying from Islip, New York to Montrose, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Islip, New York-Montrose flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Islip, New York-Montrose flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from Islip, New York-Montrose flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Islip, New York-Montrose flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Islip, New York-Montrose flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Islip to Montrose that include hotel bookings?

Yes. In addition to deals on Islip to Montrose flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Islip to Montrose?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to Montrose.

Can I find deals for business class flights from Islip to Montrose?

Yes. Cheapflights offers flight deals from Islip to Montrose by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$1,159+ Flights from Islip, NY to Montrose

Q: What is the cheapest month to book a flight from Islip, New York to Montrose?

Currently, January is the cheapest month in which you can book a flight from Islip, New York to Montrose (average of $238). Flying from Islip, New York to Montrose in June is currently the most expensive (average of $460). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Q: E

Most trusted provider : When it comes to deals on Islip, New York-Montrose flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Islip, New York-Montrose flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Q: Can I find deals for flights from Islip to Montrose that include hotel bookings?

Yes. In addition to deals on Islip to Montrose flights, Cheapflights offers vacation packages that include both flights and hotel.

Q: How can I find direct flights from Islip to Montrose?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to Montrose.

Q: Can I find deals for business class flights from Islip to Montrose?

Yes. Cheapflights offers flight deals from Islip to Montrose by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Cheap flight deals from Islip to Montrose

Cheapest flights from Islip to Montrose
Explore the most affordable flight options available from Islip to Montrose. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

Thu 2/125:35 am

ISP

MTJ

2 stops11h 35m

Southwest

Mon 2/163:50 pm

MTJ

ISP

2 stops17h 25m

Southwest

Deal found 1/28

$1,159

Best flights from Islip to Montrose
Discover carefully curated flight deals from Islip to Montrose that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 29, 2026.

Thu 2/125:35 am

ISP

MTJ

2 stops11h 35m

Southwest

Mon 2/163:50 pm

MTJ

ISP

2 stops17h 25m

Southwest

Deal found 1/28

$1,159

Last-minute flights from Islip to Montrose
Discover last-minute flight deals from Islip to Montrose. Data last updated January 29, 2026 and is based on user searches.

Thu 2/125:35 am

ISP

MTJ

2 stops11h 35m

Southwest

Mon 2/163:50 pm

MTJ

ISP

2 stops17h 25m

Southwest

Deal found 1/28

$1,159

Find flight deals from Islip to Montrose

Most accurate provider	Expedia 1 star
Most trusted provider	Expedia 3 stars
Round-trip from	$1,159 (Southwest)
Popular in	December
Cheapest in	January
Average price	$397

Provider with most accurate pricing for Islip Long Island-Montrose County flight deals.

Search Deals

Provider most trusted by Cheapflights users for Islip Long Island-Montrose County flights.

Search Deals

From Islip Long Island to Montrose County

Search Deals

High demand for flights, 2% potential price rise

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in January 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

IslipMontrose

ISP - MTJ

ISPMTJ

Islip Long Island

Thu 2/12

5:35 am-3:10 pm

2 stops11h 35m

Montrose County

Mon 2/16

3:50 pm-11:15 am

2 stops17h 25m

$1,159

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Most accurate provider: When it comes to deals on Islip, New York-Montrose flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Islip, New York-Montrose flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from Islip, New York-Montrose flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Islip, New York-Montrose flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Islip, New York-Montrose flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Islip to Montrose

Have a flexible travel schedule? Discover the best time to fly to Montrose from Islip with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Islip to Montrose

What is the cheapest month to book a flight from Islip, New York to Montrose?

Currently, January is the cheapest month in which you can book a flight from Islip, New York to Montrose (average of $238). Flying from Islip, New York to Montrose in June is currently the most expensive (average of $460). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

How long is the flight from Islip, New York to Montrose?
For as low as $1,159, Southwest can have you in Montrose from Islip, New York in 11h 35m. Airlines will cover a distance of 1844 mi.
Can I find deals for flights from Islip to Montrose that include hotel bookings?
Yes. In addition to deals on Islip to Montrose flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Islip to Montrose?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to Montrose.
Can I find deals for business class flights from Islip to Montrose?
Yes. Cheapflights offers flight deals from Islip to Montrose by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Islip, New York to Montrose?
Currently, January is the cheapest month in which you can book a flight from Islip, New York to Montrose (average of $238). Flying from Islip, New York to Montrose in June is currently the most expensive (average of $460). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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$1,159+ Cheap flights from Islip, NY to Montrose (ISP - MTJ)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Islip to Montrose with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Islip to Montrose

Cheapest flights from Islip to MontroseExplore the most affordable flight options available from Islip to Montrose. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

Explore the most affordable flight options available from Islip to Montrose. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

Find flight deals from Islip to Montrose

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Use the filters below to find and compare flights from Islip to Montrose that are best for you.

Best time to book a flight from Islip to Montrose

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Cheapflights Insights

Everything you need to know about your flight from Islip to Montrose

What is the cheapest month to book a flight from Islip, New York to Montrose?

Related info for your journey

Find useful and relevant information for your journey from Islip to Montrose. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Islip, New York to Montrose?

Can I find deals for flights from Islip to Montrose that include hotel bookings?

How can I find direct flights from Islip to Montrose?

Can I find deals for business class flights from Islip to Montrose?

What is the cheapest month to book a flight from Islip, New York to Montrose?

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Cheapest flights from Islip to Montrose
Explore the most affordable flight options available from Islip to Montrose. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.