BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
ISPTPA

Islip, NY (ISP) to Tampa, FL (TPA) flight delay odds

Historically, 69.1% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 460 flights.

HISTORICAL ROUTE SIGNALVariable
69.1%arrived on time
17.2%30+ min late
3.5%cancelled
460scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late8.9%all scheduled flights
120+ minutes late3.7%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+11.6 mincompleted flights

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

Departure windowFlightsOn time30+ minCancelled
Early morning9471.3%16.0%4.3%
Late morning8772.4%11.5%5.7%
Afternoon18165.2%21.0%2.8%
Evening9470.2%17.0%2.1%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

DayFlightsOn time30+ minCancelled
Monday7660.5%11.8%10.5%
Wednesday4271.4%9.5%2.4%
Thursday4682.6%13.0%2.2%
Friday8473.8%14.3%0.0%
Saturday10869.4%20.4%1.9%
Sunday8062.5%27.5%5.0%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

AirlineFlightsOn time30+ minCancelled
Frontier Airlines27971.7%16.5%3.6%
Southwest Airlines9968.7%18.2%2.0%
JetBlue Airways8261.0%18.3%4.9%

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

MonthFlightsOn time30+ minCancelled
July 20253961.5%30.8%0.0%
August 20254276.2%14.3%0.0%
September 20253675.0%16.7%2.8%
October 20253083.3%3.3%6.7%
November 20253183.9%12.9%0.0%
December 20254961.2%12.2%8.2%
January 20264365.1%14.0%7.0%
February 20265058.0%24.0%6.0%
March 20264367.4%23.3%4.7%
April 20265271.2%17.3%1.9%
May 20262070.0%10.0%0.0%
June 20262568.0%20.0%0.0%

What drove reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

Airline22.5%
Late aircraft49.2%
National airspace26.2%
Weather2.1%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.