In terms of precipitation, rainfall in Long Beach ranges from 0.0 - 3.0 inches per month. February is typically the wettest month, when rainfall can reach 3.0 in. July is typically the driest time to visit Long Beach when rainfall is around 0.0 in.

If weather is an important factor for your trip to Long Beach, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 55.4 F).

How far in advance should I book a flight from Islip, New York to Long Beach?

Travelers have found it’s best to book a flight 59 days in advance to save up to 86% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 59 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Islip, New York to Long Beach 1-2 weeks in advance for as low as $387, or $631 for flights within the next 24 hours.

What is the cheapest month to fly from Islip, New York to Long Beach?

Flights from Islip, New York to Long Beach lean towards being more expensive in December. Prices are generally better when you fly from Islip, New York to Long Beach in September, with the cheapest ticket starting at $131.

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

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

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

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

How can I find direct flights from Islip to Long Beach?

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

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

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

$394+ Flights from Islip, NY to Long Beach

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Cheap flight deals from Islip to Long Beach

Round-trip from	$394 (Southwest)
Popular in	December
Cheapest in	September
Average price	$396

From Islip Long Island to Long Beach Municipal

Search Deals

Highest demand for flights based on searches. 6% potential increase in price ($26 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from Islip to Long Beach

Cheapest flights from Islip to Long Beach
Explore the most affordable flight options available from Islip to Long Beach. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Wed 8/66:05 amISP - LGB

2 stops9h 15mSouthwest

Sun 8/101:40 pmLGB - ISP

1 stop7h 10mSouthwest

Deal found 7/1

$394

Best flights from Islip to Long Beach
Discover carefully curated flight deals from Islip to Long Beach that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 3, 2025.

Wed 8/66:05 amISP - LGB

2 stops9h 15mSouthwest

Sun 8/101:40 pmLGB - ISP

1 stop7h 10mSouthwest

Deal found 7/1

$394

Last-minute flights from Islip to Long Beach
Discover last-minute flight deals from Islip to Long Beach. Data last updated July 3, 2025 and is based on user searches.

Wed 8/66:05 amISP - LGB

2 stops9h 15mSouthwest

Sun 8/101:40 pmLGB - ISP

1 stop7h 10mSouthwest

Deal found 7/1

$394

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

IslipLong Beach

ISP - LGB

ISPLGB

Islip Long Island

Wed 8/6

6:05 am-12:20 pm

2 stops9h 15m

Long Beach Municipal

Sun 8/10

1:40 pm-11:50 pm

1 stop7h 10m

$394

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Best time to book a flight from Islip to Long Beach

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

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

Currently, January is the cheapest month in which you can book a flight from Islip, New York to Long Beach (average of $306). Flying from Islip, New York to Long Beach in June is currently the most expensive (average of $386). 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 Long Beach

Read reviews from past customers who have flown Southwest from Islip to Long Beach. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,266 reviews

Reviews

1 / 20

10.0

Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Southwest

8.0

Very good

4,266 reviews

Southwest

8.0

Very good

4,266 reviews

Reviews

1 / 20

10.0

Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Related info for your journey

Can I find deals for flights from Islip to Long Beach that include hotel bookings?
Yes. In addition to deals on Islip to Long Beach flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Islip to Long Beach?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to Long Beach.
Can I find deals for business class flights from Islip to Long Beach?
Yes. Cheapflights offers flight deals from Islip to Long Beach 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 Long Beach?
Currently, January is the cheapest month in which you can book a flight from Islip, New York to Long Beach (average of $306). Flying from Islip, New York to Long Beach in June is currently the most expensive (average of $386). 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.

See more FAQs

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Complete your trip

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$394+ Cheap flights from Islip, NY to Long Beach (ISP - LGB)

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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Islip to Long Beach 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 Long Beach

Round-trip from

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Average price

Find flight deals from Islip to Long Beach

Cheapest flights from Islip to Long BeachExplore the most affordable flight options available from Islip to Long Beach. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Explore the most affordable flight options available from Islip to Long Beach. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Islip to Long Beach

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

Cheapflights Insights

Everything you need to know about your flight from Islip to Long Beach

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

Reviews of airlines servicing Long Beach

Read reviews from past customers who have flown Southwest from Islip to Long Beach. Users can see the overall rating for each airline as well as how each is rated 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 Long Beach. 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 Long Beach that include hotel bookings?

How can I find direct flights from Islip to Long Beach?

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

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

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 Long Beach

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

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Islip to Long Beach
Explore the most affordable flight options available from Islip to Long Beach. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.