TPA to ISP flight delays
Tampa, FL (TPA) Islip, NY (ISP) · 1,034 miles
457 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
73.42%
Arrived on time
Within 15 minutes of schedule
2.63%
Cancelled
Share of scheduled flights
64 min
When late, late by
Average across delayed arrivals
18 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In May it ran 31 points more punctual than in July — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
Cancellation, not delay, is the risk worth pricing here: 2.63% of scheduled flights never operated. A late flight still gets you there. A cancelled one leaves you rebooking, and on a route with few daily departures that can mean losing a day.
Only Frontier Airlines flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
This is a thin route — 457 flights across the whole period. On a route this infrequent a cancellation is far more costly than the rate suggests, because the next departure may not be the same day.
Which airline should you fly on this route?
Over January 2025 – August 2026, Frontier Airlines arrived on time most often on TPA to ISP. Flights ran closest to schedule in May and worst in July.
Every airline on TPA to ISP
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Frontier Airlines | 277 | 77.24% | 2.89% | 81 min | D |
| Southwest Airlines | 99 | 67.01% | 2.02% | 39 min | — |
| JetBlue Airways | 81 | 68.35% | 2.47% | 57 min | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
ISP to TPA Islip back to Tampa 71.62% on time FOther routes from Tampa
Common questions
Are flights from Tampa to Islip usually delayed?
73.42% of flights on the TPA to ISP route arrived within 15 minutes of schedule, so roughly 3 in every ten arrived late. That is worse than the average route in this record.
Which airlines fly from Tampa to Islip?
Only Frontier Airlines appears in the published record on this route, with 277 flights and 77.24% arriving on time.
How often are TPA to ISP flights cancelled?
2.63% of scheduled flights did not operate — about 26 in every thousand. That is high enough that cancellation, not delay, is the risk worth planning around.
What is the best month to fly Tampa to Islip?
May, when 90% of flights arrived on time. The worst was July at 59%.
When TPA to ISP flights are late, how late are they?
About 64 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on TPA to ISP during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →