Historical on-time performance
Tampa to Islip
1,034 miData through May 2026Source: US DOT · BTS
Flights on TPA–ISP arrive on time 70% of the time over the last 12 months.
On-time rate70%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled2.1%of scheduled flights
based on 94 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Frontier AirlinesOn-time70%Medianon timep9035 minCancel2.1%Flights94
Why flights run late
Delay causes
- Airline43%
- Weather5%
- Air traffic (NAS)22%
- Late aircraft30%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather100%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 2 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly TPA → ISP
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 89% on time.
- Mornings89% on time · p90 10 min · 492 flights
- Middays78% on time · p90 40 min · 520 flights
- Evenings68% on time · p90 60 min · 128 flights · limited
- Afternoons67% on time · p90 60 min · 297 flights
- Overnights59% on time · p90 120 min · 128 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 70% to 84% on time.
- Tuesdays84% on time · p90 20 min · 116 flights · limited
- Thursdays82% on time · p90 35 min · 220 flights
- Wednesdays80% on time · p90 45 min · 140 flights · limited
- Mondays77% on time · p90 35 min · 235 flights
- Fridays76% on time · p90 55 min · 245 flights
- Saturdays75% on time · p90 40 min · 315 flights
- Sundays70% on time · p90 60 min · 294 flights
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