What is the cheapest day to fly from Islip to Fresno?

Travelers seeking maximum savings on their Islip to Fresno flight should consider departing on Thursday mornings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Fresno ranges from 0.0 - 2.2 inches per month. January is typically the wettest month, when rainfall can reach 2.2 in. July is typically the driest time to visit Fresno when rainfall is around 0.0 in.

If weather is an important factor for your trip to Fresno, 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 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 46.4 F).

How far in advance should I book a flight from Islip to Fresno?

Users have found that booking a flight from Islip to Fresno at least 57 days early can save you up to 115% on average compared to booking a flight this week. If booking 57 days before your flight isn’t an option for you, users have found flights from Islip to Fresno for as little as $187 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $315 for flights departing within the next 3 days.

What is the cheapest month to fly from Islip to Fresno?

Flights from Islip to Fresno lean towards being more expensive in December. Prices are generally better when you fly from Islip to Fresno in January, with the cheapest ticket starting at $278.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Islip to Fresno as you normally would.

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

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

How can I find direct flights from Islip to Fresno?

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

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

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

$654+ Cheap Flights from Islip to Fresno

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Cheap flight deals from Islip to Fresno

Popular in	December
Cheapest in	January
Average price	$462

Highest demand for flights based on searches. 2% potential increase in price ($10 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2025

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Find flight deals from Islip to Fresno

Cheapest flights from Islip to Fresno
Explore the most affordable flight options available from Islip to Fresno. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

jue. 9/1812:10 pmISP - FAT

2 stops12h 30mSouthwest

dom. 9/2110:20 amFAT - ISP

2 stops10h 30mSouthwest

Deal found 9/10

$1,064

jue. 9/182:19 pmISP - FAT

2 stops35h 25mMultiple Airlines

dom. 9/217:15 amFAT - ISP

3 stops27h 09mMultiple Airlines

Deal found 9/10

$1,228

Last-minute flights from Islip to Fresno
Discover last-minute flight deals from Islip to Fresno. Data last updated septiembre 11, 2025 and is based on user searches.

jue. 9/1812:10 pmISP - FAT

2 stops12h 30mSouthwest

dom. 9/2110:20 amFAT - ISP

2 stops10h 30mSouthwest

Deal found 9/10

$1,064

jue. 9/182:19 pmISP - FAT

2 stops35h 25mMultiple Airlines

dom. 9/217:15 amFAT - ISP

3 stops27h 09mMultiple Airlines

Deal found 9/10

$1,228

One-way flights from Islip to Fresno
Search for one-way flight options from Islip to Fresno. Find affordable one-way fares based on user searches. Data last updated septiembre 11, 2025.

lun. 12/222:19 pmISP - FAT

2 stops12h 21mMultiple Airlines

Deal found 9/9

$654

Fly from

Fly to

Route

Depart

Return

Price

IslipFresno

ISP - FAT

ISPFAT

Islip Long Island

lun. 12/22

2:19 pm-11:40 pm

2 stops12h 21m

$654

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Best time to book a flight from Islip to Fresno

Have a flexible travel schedule? Discover the best time to fly to Fresno 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 Fresno

What is the cheapest month to book a flight from Islip to Fresno?

Currently, January is the cheapest month in which you can book a flight from Islip to Fresno (average of $363). Flying from Islip to Fresno in June is currently the most expensive (average of $446). 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.

Reviews of airlines servicing Fresno

Get a feel of what it's like to fly with Southwest from Islip to Fresno by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,248 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Southwest

8.0

Very good

4,248 reviews

Southwest

8.0

Very good

4,248 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Related info for your journey

Can I find deals for flights from Islip to Fresno that include hotel bookings?
Yes. In addition to deals on Islip to Fresno flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Islip to Fresno?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to Fresno.
Can I find deals for business class flights from Islip to Fresno?
Yes. Cheapflights offers flight deals from Islip to Fresno 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 to Fresno?
Currently, January is the cheapest month in which you can book a flight from Islip to Fresno (average of $363). Flying from Islip to Fresno in June is currently the most expensive (average of $446). 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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Other flights to Fresno

Top airline flying from Islip to Fresno

Airline	Cheapest	Average	Flexibility	On-time
Southwest	Cheapest$423	Average$446	FlexibilityNo cancel fee	On-time63%

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$654+ Cheap flights from Islip to Fresno (ISP - FAT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/22. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Islip to Fresno with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Islip to Fresno

Popular in

Cheapest in

Average price

Find flight deals from Islip to Fresno

Cheapest flights from Islip to FresnoExplore the most affordable flight options available from Islip to Fresno. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

Explore the most affordable flight options available from Islip to Fresno. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Islip to Fresno

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

Cheapflights Insights

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

What is the cheapest month to book a flight from Islip to Fresno?

Reviews of airlines servicing Fresno

Get a feel of what it's like to fly with Southwest from Islip to Fresno by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

How can I find direct flights from Islip to Fresno?

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

What is the cheapest month to book a flight from Islip to Fresno?

Traveling to a place near Fresno?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Islip to Fresno

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Islip to Fresno

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Islip to Fresno
Explore the most affordable flight options available from Islip to Fresno. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.