Flight Check

Is a 90-Minute Layover Enough at ISP?

Long Island MacArthur Airport — Islip

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Risky — 18% miss rate

It's risky — a 90 minutes layover at ISP gives you about a 18% chance of missing your connection.

18%
Miss Rate
77%
On-Time Rate
69m
Avg Delay

Why 90 Minutes Is Risky at ISP

A 90-minute connection at ISP is risky. Based on delay patterns, roughly 18% of travelers on connections like this would miss their flight. We recommend at least 133 minutes.

·Airport reliability: ISP has a 77% on-time rate
+Comfortable buffer: Your 90-minute layover is well above the 60-minute minimum
−High average delay: When flights are late at ISP, the average delay is 69 minutes

Minimum Connection Time at ISP

60m
Domestic
120m
International

Your 90-minute layover gives you 30 minutes of buffer above the 60-minute domestic minimum. That's a comfortable buffer for most situations.

Compare Other Layover Times at ISP

Click any row to see the full analysis for that layover time.

What to Do Instead

  • →Look for itineraries with 133+ minute layovers at ISP
  • →Consider a direct flight if available
  • →Book both legs on the same ticket (airline must rebook you if you miss the connection)
  • →Choose an early morning first leg — morning flights are delayed less often

Check a Different Layover Time

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