How reliable is Rochester International Airport?
Flights from RST departed within 15 minutes of schedule in 81% of 13,936 flights in official BTS history — and weather is calmest in May. 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 RST looks like
On-time departures
across 13,936 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 Rochester
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 · 91/100 favorability
Roughest month
Most disruptive — low visibility & fog, snow · 68/100 favorability
The read on RST
What the numbers say about flying through Rochester International Airport
Across official performance history, flights from Rochester left within 15 minutes of schedule about 81% of the time over 13,936 flights. That's a solid, better-than-average operational record. Pair it with a moderate cancellation rate of 2.2%. When a departure does run late, the typical delay is around 14 minutes.
On weather, Rochester is an unusually calm-weather airport year-round. May is the calmest stretch for flying, scoring 91 out of 100 for favorable conditions, while January is the most disruptive at 68, driven mainly by low visibility & fog and snow. 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 Rochester, 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 RST
- How reliable is Rochester International Airport (RST)?
- Flights from Rochester left within 15 minutes of schedule roughly 81% of the time across 13,936 flights of official history — a solid, better-than-average operational record. The cancellation rate runs about 2.2%. It's advisory context, not a guarantee for any single flight.
- What is the best month to fly from RST for good weather?
- May has the calmest flying weather at Rochester International Airport. January is the most disruptive, mainly from low visibility & fog and snow.
Planning a trip through Rochester?
Score real flights to and from RST on reliability, weather, and connection safety — not just price.