FLL to ISP flight delays & on-time performance
Nonstop flights from Fort Lauderdale Hollywood International Airport to Long Island MacArthur Airport · 1,092 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at FLL or ISP right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Fort Lauderdale (FLL) to Islip (ISP) arrived on time 71% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 2.2% were cancelled, and 12% arrived an hour or more late.
- Departures scheduled around 8am did best (93% on time); around 4pm did worst (41%).
- Wednesday was the most reliable day to fly (91% on time) and Sunday the least (48%).
- The largest source of delay minutes was late-arriving aircraft (51%).
Which airline is most on time from FLL to ISP?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| JetBlue | 73% | 2.1% | 19 min | 11.3% | 384 |
| Frontier Airlines | 44% | 5.3% | 50 min | 27.8% | 19 |
| Southwest Airlines | 33% | 0.0% | 12 min | 0.0% | 3 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am73%28 flights
- 8am93%138 flights
- 9am77%13 flights
- 11am60%30 flights
- 3pm50%27 flights
- 4pm41%30 flights
- 5pm70%41 flights
- 6pm57%23 flights
- 7pm54%14 flights
- 8pm54%25 flights
- 10pm53%16 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday62%6.8% cancelled
- Tuesday83%1.9% cancelled
- Wednesday91%0.0% cancelled
- Thursday69%0.0% cancelled
- Friday79%3.4% cancelled
- Saturday67%0.0% cancelled
- Sunday48%3.4% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft51%
- Airline (crew, maintenance, cleaning, fueling)31%
- Air traffic control & airport congestion15%
- Extreme weather2%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather56%
- Airline (crew, maintenance, cleaning, fueling)22%
- Air traffic control & airport congestion22%
- Security0%
FLL to ISP: common questions
- How often are FLL to ISP flights on time?
- 71% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Fort Lauderdale to Islip cancelled?
- 2.2% of scheduled flights were cancelled (9 of 406).
- How long are typical delays?
- Across all flights the average arrival delay was 20 min (early arrivals count as zero). Flights that were late arrived 66 min behind schedule on average, and 11.9% of flights were an hour or more late.
- How long is taxi time at FLL?
- Flights on this route spent 17 min taxiing from the gate to takeoff on average.
Related routes
Return trip: ISP to FLL — 69% on time
More flights from Fort Lauderdale
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: FLL → ISP, nonstop flights by US airlines that report to the DOT. How we calculate this.