US$31 : Cheap Flights from Islip to Fort Lauderdale
Compare airlines and prices on flights from Islip to Fort Lauderdale.
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Flights from Islip to Fort Lauderdale
Flight deals from Islip to Fort Lauderdale
Find the cheapest direct flight options from Islip to Fort Lauderdale over the next three months. Book one-way tickets from US$31 and round-trip tickets from US$62.
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- One way
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Cheapest nonstop
ISP 16:403h 12mDirectFLL 19:52Islip - Fort Lauderdale | Sat, Dec 20 | Frontier Airlines
FLL 22:032h 52mDirectISP 00:55Fort Lauderdale - Islip | Tue, Dec 23 | Frontier AirlinesUS$62 US$16663% OFF63% OFFUS$166 US$62 -
ISP 16:403h 12mDirectFLL 19:52Islip - Fort Lauderdale | Thu, Dec 18 | Frontier Airlines
FLL 22:032h 52mDirectISP 00:55Fort Lauderdale - Islip | Mon, Dec 22 | Frontier AirlinesUS$69 US$16657% OFF57% OFFUS$166 US$69
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ISP 16:283h 12mDirectFLL 19:40Islip - Fort Lauderdale | Sun, Dec 21 | Frontier Airlines
FLL 22:032h 52mDirectISP 00:55Fort Lauderdale - Islip | Sat, Dec 27 | Frontier AirlinesUS$83 US$16650% OFF50% OFFUS$166 US$83
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ISP 16:403h 12mDirectFLL 19:52Islip - Fort Lauderdale | Fri, Dec 19 | Frontier Airlines
FLL 20:492h 54mDirectISP 23:43Fort Lauderdale - Islip | Sun, Dec 21 | Frontier AirlinesUS$8847% OFFUS$166 US$88
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ISP 11:502h 54mDirectFLL 14:44Islip - Fort Lauderdale | Mon, Dec 15 | Jetblue Airways
FLL 22:032h 52mDirectISP 00:55Fort Lauderdale - Islip | Mon, Dec 22 | Frontier AirlinesUS$10835% OFFUS$166 US$108 -
ISP 16:403h 12mDirectFLL 19:52Islip - Fort Lauderdale | Thu, Jan 1 | Frontier Airlines
FLL 08:402h 55mDirectISP 11:35Fort Lauderdale - Islip | Tue, Jan 6 | Jetblue AirwaysUS$11332% OFFUS$166 US$113
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ISP 16:403h 12mDirectFLL 19:52Islip - Fort Lauderdale | Wed, Dec 31 | Frontier Airlines
FLL 08:402h 55mDirectISP 11:35Fort Lauderdale - Islip | Tue, Jan 6 | Jetblue AirwaysUS$12525% OFFUS$166 US$125
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ISP 11:502h 54mDirectFLL 14:44Islip - Fort Lauderdale | Tue, Dec 16 | Jetblue Airways
FLL 22:032h 52mDirectISP 00:55Fort Lauderdale - Islip | Thu, Dec 18 | Frontier AirlinesUS$14016% OFFUS$166 US$140
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ISP 16:403h 12mDirectFLL 19:52Islip - Fort Lauderdale | Mon, Dec 22 | Frontier Airlines
FLL 22:032h 52mDirectISP 00:55Fort Lauderdale - Islip | Fri, Dec 26 | Frontier AirlinesUS$14115% OFFUS$166 US$141
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ISP 12:253h 10mDirectFLL 15:35Islip - Fort Lauderdale | Sun, Jan 18 | Jetblue Airways
FLL 08:402h 53mDirectISP 11:33Fort Lauderdale - Islip | Thu, Jan 22 | Jetblue AirwaysUS$14910% OFFUS$166 US$149
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ISP 13:0017h 25m1 stopFLL Invalid DateIslip - Fort Lauderdale | Sat, Dec 13 | Normal Airline
FLL 15:006hDirectISP 16:00Fort Lauderdale - Islip | Mon, Dec 15 | Normal AirlineFind More FlightsFind More Flights
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Cheapest nonstop
ISP 16:403h 12mDirectFLL 19:52Islip - Fort Lauderdale | Mon, Jan 5 | Frontier AirlinesUS$31 US$23187% OFF87% OFFUS$231 US$31
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ISP 16:403h 12mDirectFLL 19:52Islip - Fort Lauderdale | Sat, Jan 3 | Frontier AirlinesUS$31 US$23187% OFF87% OFFUS$231 US$31
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ISP 16:403h 12mDirectFLL 19:52Islip - Fort Lauderdale | Wed, Dec 31 | Frontier AirlinesUS$40 US$23183% OFF83% OFFUS$231 US$40
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ISP 16:403h 12mDirectFLL 19:52Islip - Fort Lauderdale | Thu, Dec 18 | Frontier AirlinesUS$4481% OFFUS$231 US$44
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ISP 16:283h 12mDirectFLL 19:40Islip - Fort Lauderdale | Sun, Jan 4 | Frontier AirlinesUS$4680% OFFUS$231 US$46
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ISP 12:253h 10mDirectFLL 15:35Islip - Fort Lauderdale | Tue, Jan 13 | Jetblue AirwaysUS$7667% OFFUS$231 US$76
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ISP 16:403h 12mDirectFLL 19:52Islip - Fort Lauderdale | Thu, Jan 1 | Frontier AirlinesUS$8065% OFFUS$231 US$80
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ISP 12:253h 10mDirectFLL 15:35Islip - Fort Lauderdale | Tue, Jan 20 | Jetblue AirwaysUS$8065% OFFUS$231 US$80
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ISP 06:003h 15mDirectFLL 09:15Islip - Fort Lauderdale | Fri, Dec 19 | Frontier AirlinesUS$20810% OFFUS$231 US$208
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ISP 12:0022h 10m1 stopFLL 10:10Islip - Fort Lauderdale | Tue, Jan 20 | Frontier AirlinesUS$8862% OFFUS$231 US$88
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ISP 13:0017h 25m1 stopFLL Invalid DateIslip - Fort Lauderdale | Sat, Dec 13 | Normal AirlineFind More FlightsFind More Flights
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Displayed flight fares from Islip to Fort Lauderdale are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.
Flight details for Islip to Fort Lauderdale
The distance between Islip and Fort Lauderdale is 1,762.55 km. It takes around 3 hours 3 minutes on average to fly from Islip to Fort Lauderdale. Based on Trip.com's data, travel demand peaks in January. The off-season for travel is September.
| Cheapest one-way flight price | US$31 |
|---|---|
| Cheapest round-trip ticket price | US$62 |
| Off-season for travel | September |
| Peak season for travel | January |
| Flight distance | 1,762.55 km |
| Average flight time | 3 hours 3 minutes |
Find the best time to fly from Islip to Fort Lauderdale
The cheapest time for Islip to Fort Lauderdale flights: Jan 4 to Jan 11 — one way flight prices from US$30.
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Displayed fare trends are based on Trip.com's aggregated average of the lowest flight prices from Islip to Fort Lauderdale, calculated over the upcoming 10 weeks.
Flight FAQs
What are the cheapest flights from Islip to Fort Lauderdale (ISP-FLL)?
Based on Trip.com data, Frontier Airlines offers one-way fares as low as US$31 on Cheapest nonstop routes (e.g. ISP to FLL on Mon, Jan 5), while Frontier Airlines offers Cheapest nonstop round-trips from US$62 departing on Sat, Dec 20 and returning on Tue, Dec 23.How long does it take to fly from Islip (ISP) to Fort Lauderdale (FLL) and what is the distance?
It takes around 3 hours 3 minutes to fly from Islip (ISP) to Fort Lauderdale (FLL).When is the best time to book flights from Islip to Fort Lauderdale?
By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Islip to Fort Lauderdale is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.How can I find the best deals on flights from Islip to Fort Lauderdale?
To find best deals on flights from Islip to Fort Lauderdale, you can use various tools on Trip.com:
· Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Mon, Jan 5, with one-way flights priced at just US$31.
· Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier Airlines.
· Set up price alerts to easily monitor ticket prices without having to check every day.
· Check Trip.com flight deals and promo codes frequently.
· Avoid peak season unless you book very early. It seems the peak season for Fort Lauderdale travel is around January.
· Get exclusive promo codes for Trip.com app users.When are flight tickets from Islip (ISP) to Fort Lauderdale (FLL) the cheapest?
The cheapest months to fly from Islip to Fort Lauderdale is September, when demand for travel is lower.Which upcoming date is cheapest to fly from Islip to Fort Lauderdale on?
After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Islip to Fort Lauderdale on December 20, 2025 with Frontier Airlines, with prices starting at US$61.Is there any time difference between Islip and Fort Lauderdale?
The time difference between Fort Lauderdale and Islip is 0h.How do I change or cancel my ticket from Islip to Fort Lauderdale?
Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.