How reliable is Ithaca Tompkins Regional Airport?
Flights from ITH departed within 15 minutes of schedule in 86% of 9,304 flights in official BTS history — and weather is calmest in Jun. Here’s the full picture before you book.
Reliability score
on-time, cancellations & delays
Weather favorability
year-round climate
Origin-airport operations
What the departure punctuality at ITH looks like
On-time departures
across 9,304 flights
Source: BTS Airport Operations · data through 2026-06-25. Role-specific BTS departure history; advisory context, not a guarantee for any flight.
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Weather by month
When the weather works for you at Ithaca
A calm-weather score (0–100) for each month from decades of airport observations — how often conditions disrupt flying, not temperature. Higher is calmer.
Calmest month
Calmest flying weather of the year · 93/100 favorability
Roughest month
Most disruptive — snow, low visibility & fog · 74/100 favorability
The read on ITH
What the numbers say about flying through Ithaca Tompkins Regional Airport
Across official performance history, flights from Ithaca left within 15 minutes of schedule about 86% of the time over 9,304 flights. That's one of the more dependable operational records you'll see. Pair it with an elevated cancellation rate of 4.2% — worth weighing alongside the on-time figure. When a departure does run late, the typical delay is around 15 minutes.
On weather, Ithaca is an unusually calm-weather airport year-round. June is the calmest stretch for flying, scoring 93 out of 100 for favorable conditions, while January is the most disruptive at 74, driven mainly by snow and low visibility & fog. The seasonal swing is real but manageable; favor the calmer months when your dates are flexible.
None of this guarantees your specific flight — it’s the backdrop. To turn it into a booking, score real flights to Ithaca, read how we weigh it all in how the PlaneSane Score works, and brush up with how to pick a reliable flight and avoiding weather delays.
Common questions about ITH
- How reliable is Ithaca Tompkins Regional Airport (ITH)?
- Flights from Ithaca left within 15 minutes of schedule roughly 86% of the time across 9,304 flights of official history — one of the more dependable operational records you'll see. The cancellation rate runs about 4.2%. It's advisory context, not a guarantee for any single flight.
- What is the best month to fly from ITH for good weather?
- June has the calmest flying weather at Ithaca Tompkins Regional Airport. January is the most disruptive, mainly from snow and low visibility & fog.
Planning a trip through Ithaca?
Score real flights to and from ITH on reliability, weather, and connection safety — not just price.