What is the cheapest airline that flies from Islip Long Island to United States?

Breeze Airways, Frontier, and JetBlue are the most popular carriers operating from Islip Long Island to United States

How many flights depart from Islip to United States on average per week?

As of August 2025, 87 flights take off from Islip and land in United States each week. The most common flight departure day for this route is Wed, with 18% of weekly flights taking off on this day.

How many flights depart from Islip to United States on average per day?

As of August 2025, 12 flights take off from Islip and land in United States each day. The most common flight departure time for this route is 4:00PM, with 54% of daily flights taking off in the afternoon.

What airlines fly to United States?

United Airlines, Delta and Spirit Airlines are the top three most popular airlines that fly to United States from Islip according to our data. United Airlines is the first choice among our users, with 31% of people opting to fly with this airline when traveling to United States. Keep in mind that there are 13 different airlines that fly to United States on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Islip Long Island Airport to United States?

Prices for flights from Islip Long Island Airport to United States were last updated today.

How many operators does momondo search for flights from Islip Long Island Airport to United States?

As of August 2025, there are 7 operators available to choose from for flights from Islip Long Island Airport to United States.

How old do you have to be to fly from Islip Long Island Airport to United States?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Islip Long Island Airport to United States.

What documentation or ID do you need to fly to United States?

The travel and health documents you'll need for your trip to United States may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at United States. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$39 Cheap Flights from Islip to the United States in 2025

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Find the cheapest flights from Islip to the United States

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

8:47 pm - 10:59 pmISP-CHS

2h 12mnonstop

5:48 pm - 7:41 pmCHS-ISP

1h 53mnonstop

$82Breeze Airways

Find Deal

Fri, Sep 5 - Wed, Sep 10

5:05 pm - 8:01 pmISP-MCO

2h 56mnonstop

8:00 am - 10:40 amMCO-ISP

2h 40mnonstop

$84Frontier

Find Deal

Mon, Sep 22 - Fri, Sep 26

4:19 pm - 7:07 pmISP-MCO

2h 48mnonstop

12:38 pm - 3:23 pmMCO-ISP

2h 45mnonstop

$105JetBlue

Find Deal

Thu, Sep 25 - Tue, Sep 30

3:05 pm - 7:30 pmISP-MCO

4h 25m1 stop

9:00 am - 11:35 amMCO-ISP

2h 35mnonstop

$115Southwest

Find Deal

Thu, Sep 4 - Thu, Sep 11

3:05 pm - 7:30 pmISP-MCO

4h 25m1 stop

9:25 am - 3:10 pmMCO-ISP

5h 45m1 stop

$117Southwest

Find Deal

Fri, Sep 26 - Tue, Sep 30

11:35 am - 2:28 pmISP-FLL

2h 53mnonstop

8:00 am - 10:50 amFLL-ISP

2h 50mnonstop

$127JetBlue

Find Deal

Wed, Sep 10 - Sat, Sep 13

11:35 am - 8:55 pmISP-FLL

9h 20m1 stop

7:00 am - 10:40 amFLL-ISP

27h 40m1 stop

$138

Find Deal

Wed, Sep 10 - Sat, Sep 13

5:05 pm - 7:40 amISP-FLL

14h 35m1 stop

10:25 pm - 10:40 amFLL-ISP

12h 15m1 stop

$174

Find Deal

Fri, Sep 5 - Mon, Sep 8

11:53 am - 1:20 pmISP-BOS

1h 27mnonstop

6:30 pm - 8:01 pmBOS-ISP

1h 31mnonstop

$400Cape Air

Find Deal

Tue, Oct 7 - Tue, Oct 7

11:53 am - 1:20 pmISP-BOS

1h 27mnonstop

9:27 am - 10:58 amBOS-ISP

1h 31mnonstop

$405Cape Air

Find Deal

Tue, Sep 9 - Wed, Sep 10

Cape Air flights from Islip to United States

Our best Cape Air deals on Islip to United States flight tickets

Cape Air

Aug 23

ISP4:33 pmIslip Long Island

1h 27m

BOS6:00 pmBoston Logan Intl

Aug 25

BOS11:53 amBoston Logan Intl

1h 31m

ISP1:24 pmIslip Long Island

$392

Find similar

Cape Air

Oct 7

ISP11:53 amIslip Long Island

1h 27m

BOS1:20 pmBoston Logan Intl

Oct 7

BOS6:30 pmBoston Logan Intl

1h 31m

ISP8:01 pmIslip Long Island

$400

Find similar

Cape Air

Sep 9

ISP11:53 amIslip Long Island

1h 27m

BOS1:20 pmBoston Logan Intl

Sep 10

BOS9:27 amBoston Logan Intl

1h 31m

ISP10:58 amIslip Long Island

$405

Find similar

Frontier flights from Islip to United States

Our best Frontier deals on Islip to United States flight tickets

Frontier

Sep 22

ISP5:05 pmIslip Long Island

2h 56m

MCO8:01 pmOrlando

Sep 26

MCO8:00 amOrlando

2h 40m

ISP10:40 amIslip Long Island

$84

Find similar

Frontier

Sep 22

ISP5:05 pmIslip Long Island

2h 56m

MCO8:01 pmOrlando

Sep 25

MCO8:15 amOrlando

2h 40m

ISP10:55 amIslip Long Island

$85

Find similar

Frontier

Sep 22

ISP5:05 pmIslip Long Island

2h 56m

MCO8:01 pmOrlando

Sep 27

MCO8:15 amOrlando

2h 40m

ISP10:55 amIslip Long Island

$86

Find similar

Fly from

Fly to

Route

Depart

Return

Price

IslipCharleston

ISP - CHS

ISPCHS

Islip Long Island

Fri 9/5

8:47 pm-10:59 pm

Nonstop2h 12m

Charleston

Wed 9/10

5:48 pm-7:41 pm

Nonstop1h 53m

$82

IslipOrlando

ISP - MCO

ISPMCO

Islip Long Island

Mon 9/22

5:05 pm-8:01 pm

Nonstop2h 56m

Orlando

Fri 9/26

8:00 am-10:40 am

Nonstop2h 40m

$84

IslipOrlando

ISP - MCO

ISPMCO

Islip Long Island

Thu 9/25

4:19 pm-7:07 pm

Nonstop2h 48m

Orlando

Tue 9/30

12:38 pm-3:23 pm

Nonstop2h 45m

$105

IslipOrlando

ISP - MCO

ISPMCO

Islip Long Island

Thu 9/4

3:05 pm-7:30 pm

1 stop4h 25m

Orlando

Thu 9/11

9:00 am-11:35 am

Nonstop2h 35m

$115

IslipOrlando

ISP - MCO

ISPMCO

Islip Long Island

Fri 9/26

3:05 pm-7:30 pm

1 stop4h 25m

Orlando

Tue 9/30

9:25 am-3:10 pm

1 stop5h 45m

$117

IslipFort Lauderdale

ISP - FLL

ISPFLL

Islip Long Island

Wed 9/10

11:35 am-2:28 pm

Nonstop2h 53m

Fort Lauderdale

Sat 9/13

8:00 am-10:50 am

Nonstop2h 50m

$127

IslipFort Lauderdale

ISP - FLL

ISPFLL

Islip Long Island

Wed 9/10

11:35 am-8:55 pm

1 stop9h 20m

Fort Lauderdale

Sat 9/13

7:00 am-10:40 am

1 stop27h 40m

$138

IslipFort Lauderdale

ISP - FLL

ISPFLL

Islip Long Island

Fri 9/5

5:05 pm-7:40 am

1 stop14h 35m

Fort Lauderdale

Mon 9/8

10:25 pm-10:40 am

1 stop12h 15m

$174

IslipBoston

ISP - BOS

ISPBOS

Islip Long Island

Tue 10/7

11:53 am-1:20 pm

Nonstop1h 27m

Boston Logan Intl

Tue 10/7

6:30 pm-8:01 pm

Nonstop1h 31m

$400

IslipBoston

ISP - BOS

ISPBOS

Islip Long Island

Tue 9/9

11:53 am-1:20 pm

Nonstop1h 27m

Boston Logan Intl

Wed 9/10

9:27 am-10:58 am

Nonstop1h 31m

$405

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Islip to United States

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest Islip Long Island to United States flight route?

Fly from Islip Long Island to Orlando for the best Islip Long Island - United States flight prices

What cabin class options are available on Islip Long Island to United States flights?

There are 1 cabin classes available to choose from on Islip Long Island to United States flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Islip to United States flights?

No. A direct flight is the cheapest option for a flight between Islip to United States.

Cheap Islip to United States flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip to United States

Best Price Found	$83
Fastest flight time	1h 27m
Direct flights	Tue, Wed, Thu, Fri, Sat and Sun
Airports in United States	2 airports

The best one-way flight to United States from Islip in the past 72 hours is $83. The best round-trip flight deal from Islip to United States found on momondo in the last 72 hours is $78.

The fastest flight from Islip to United States takes 1h 27m

Direct flights go from Islip to United States on Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday. Airlines offering direct flights are: Avelo Airlines, Southwest and Cape Air.

There are 2 airports near United States: Raleigh-Durham (RDU), Boston Logan Intl (BOS)

Search flight deals

When did momondo last update prices for flights from Islip Long Island Airport to United States?
Prices for flights from Islip Long Island Airport to United States were last updated today.
How many operators does momondo search for flights from Islip Long Island Airport to United States?
As of August 2025, there are 7 operators available to choose from for flights from Islip Long Island Airport to United States.
How old do you have to be to fly from Islip Long Island Airport to United States?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Islip Long Island Airport to United States.
What documentation or ID do you need to fly to United States?
The travel and health documents you'll need for your trip to United States may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at United States. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Islip to United States?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Islip to United States is Airbus A320neo (17.08% of total bookings). The next most popular plane models are Airbus A320-100/200 (16.82%), Airbus A321neo (10.82%), and Airbus A321-100/200 (8.15%).

Best airlines flying from Islip to United States

Compare and see reviews for airlines that fly from Islip to United States with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $45	Free Cancellation	Rating 5.8 3,207 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $69	Free Cancellation	Rating 6.3 8,039 reviews	Search Spirit Airlines flights
JetBlue	PriceFrom $91	Free Cancellation	Rating 7.2 2,916 reviews	Search JetBlue flights
Delta	PriceFrom $117	Free Cancellation	Rating 7.9 7,982 reviews	Search Delta flights
Southwest	PriceFrom $172	Free Cancellation	Rating 8.0 4,246 reviews	Search Southwest flights
Cape Air	PriceFrom $501	Free Cancellation	Rating 9.3 36 reviews	Search Cape Air flights

Why use momondo?

Why should I use momondo to find a flight deal from Islip to United States?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Islip to United States. momondo saves you time and could save you money on your trip.

Can I find flights from Islip to United States with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Islip to United States flights to just show those with flexible booking policies.

How can momondo help me find flights from Islip to United States?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to United States from Islip.

I’m not ready to book a flight from Islip to United States right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Islip to United States now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to United States and let you know when they change.

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Popular cities in the United States

Flights to New Yorkfrom $47

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Flights to San Franciscofrom $54

Flights to Washington, D.C.from $52

Flights to Bostonfrom $47

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Flights to Dallasfrom $53

Flights to Seattlefrom $75

Cheap flights from Islip to the United States from $39

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Islip to the United States departing on 8/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

Filter for what you want

Filter for what you want

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Find the cheapest flights from Islip to the United States

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

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Cape Air flights from Islip to United States

Our best Cape Air deals on Islip to United States flight tickets

Frontier flights from Islip to United States

Our best Frontier deals on Islip to United States flight tickets

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

See travel insights to the United States from

How to get the cheapest flight ticket from Islip to United States

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest Islip Long Island to United States flight route?

Fly from Islip Long Island to Orlando for the best Islip Long Island - United States flight prices

What cabin class options are available on Islip Long Island to United States flights?

There are 1 cabin classes available to choose from on Islip Long Island to United States flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Islip to United States flights?

No. A direct flight is the cheapest option for a flight between Islip to United States.

What is the cheapest airline that flies from Islip Long Island to United States?

Breeze Airways, Frontier, and JetBlue are the most popular carriers operating from Islip Long Island to United States

What airlines fly to United States?

How many flights depart from Islip to United States on average per day?

As of August 2025, 12 flights take off from Islip and land in United States each day. The most common flight departure time for this route is 4:00PM, with 54% of daily flights taking off in the afternoon.

How many flights depart from Islip to United States on average per week?

As of August 2025, 87 flights take off from Islip and land in United States each week. The most common flight departure day for this route is Wed, with 18% of weekly flights taking off on this day.

Cheap Islip to United States flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip to United States

Best Price Found

Fastest flight time

Direct flights

Airports in United States

When did momondo last update prices for flights from Islip Long Island Airport to United States?

How many operators does momondo search for flights from Islip Long Island Airport to United States?

How old do you have to be to fly from Islip Long Island Airport to United States?

What documentation or ID do you need to fly to United States?

What is the most popular plane model from Islip to United States?

Best airlines flying from Islip to United States

Compare and see reviews for airlines that fly from Islip to United States with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Islip to United States?

Can I find flights from Islip to United States with flexible booking policies on momondo?

How can momondo help me find flights from Islip to United States?

I’m not ready to book a flight from Islip to United States right now. Can momondo alert me if prices change?

An easier way to manage your United States trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo