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Cheap flights from Islip to Rome from $1,135

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Islip to Rome departing on 10/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Multiple Airlines Logo
9:59 am - 7:15 amISP-FCO
16h 16m1 stop
Multiple Airlines Logo
7:10 pm - 5:42 pmFCO-ISP
28h 32m2 stops
$1,135Multiple Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
Multiple Airlines Logo
9:59 am - 7:15 amISP-FCO
16h 16m1 stop
Multiple Airlines Logo
10:15 am - 4:15 pmFCO-ISP
36h 00m1 stop
$2,018Multiple Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5

momondo Fare Finder

 
Customize your flight search to find flights from Islip to Rome Fiumicino Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Islip to Rome Fiumicino Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IslipRome

ISP - FCO

ISPFCO

Islip Long Island

Wed 10/29

9:59 am-7:15 am

1 stop16h 16m

Rome Fiumicino

Wed 11/5

7:10 pm-5:42 pm

2 stops28h 32m

$1,135

IslipRome

ISP - FCO

ISPFCO

Islip Long Island

Wed 10/29

9:59 am-7:15 am

1 stop16h 16m

Rome Fiumicino

Wed 11/5

10:15 am-4:15 pm

1 stop36h 00m

$2,018

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Rome from

How to get the cheapest flight ticket from Islip to Rome Fiumicino Airport

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 day to depart on your flight to Rome Fiumicino Airport?

Our data shows that Monday is the least expensive day to fly to Rome Fiumicino Airport. Tickets to fly out on this day can be as low as $757. The most expensive day to fly to Rome Fiumicino Airport is Friday, with ticket prices averaging around $836.

What is the cheapest time of day to depart on your flight to Rome Fiumicino Airport?

According to our data, the cheapest time of day to fly to Rome Fiumicino Airport is in the morning. momondo users have found flights departing from Islip to Rome Fiumicino Airport in the morning for as low as $656. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of $839.

When to book flights from Islip to Rome Fiumicino Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Islip to Rome Fiumicino Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Islip to Rome Fiumicino Airport (ISP to FCO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip to Rome Fiumicino Airport

Direct flights

None
There are no direct flights from Islip to Rome Fiumicino Airport. There are no popular flight routes from Islip to Rome Fiumicino Airport.
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  • How far is Islip Long Island to Rome Fiumicino by plane?

    Islip Long Island and Rome Fiumicino are 4235.5 mi apart from one another. Flights usually cover this in 16h 16m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Islip Long Island Airport to Rome Fiumicino Airport?

    Prices for flights from Islip Long Island Airport to Rome Fiumicino Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Islip Long Island Airport to Rome Fiumicino Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Islip Long Island Airport to Rome Fiumicino Airport.

  • What documentation or ID do you need to fly to Rome Fiumicino Airport?

    The necessary travel and health documents for your Rome Fiumicino Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Rome?

Book flights to Rome if you plan to visit one of these locations
Fiumicino
Civitavecchia
Cassino
Ponza
Gaeta
Pienza
Tivoli
Sperlonga
Ciampino
Orvieto
Montepulciano
Cortona
Ascoli Piceno
Saturnia
Santa Marinella
Grosseto
Anzio
Sabaudia
Terracina
Foligno

Why use momondo?

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

It is quick and easy to find Islip to Rome flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Rome that suits you.

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

Yes. All flights to Rome from Islip on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Islip to Rome?

momondo provides multiple filters to help you find the best flight to Rome from Islip. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Rome from Islip. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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