How reliable is John Murtha Johnstown Cambria County Airport?
Flights from JST departed within 15 minutes of schedule in 80% of 3,864 flights in official BTS history. Here’s the full picture before you book.
Reliability score
on-time, cancellations & delays
Origin-airport operations
What the departure punctuality at JST looks like
On-time departures
across 3,864 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
Weather history isn’t available for JST yet
PlaneSane shows month-by-month airport weather once enough historical METAR/IEM observations are loaded for the airport. This does not mean the airport has no weather data forever; it means the current climatology table has no monthly coverage for John Murtha Johnstown Cambria County Airport.
The read on JST
What the numbers say about flying through John Murtha Johnstown Cambria County Airport
Across official performance history, flights from Johnstown left within 15 minutes of schedule about 80% of the time over 3,864 flights. That's a solid, better-than-average operational record. Pair it with an elevated cancellation rate of 3.6% — worth weighing alongside the on-time figure. When a departure does run late, the typical delay is around 29 minutes.
None of this guarantees your specific flight — it’s the backdrop. To turn it into a booking, score real flights to Johnstown, 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 JST
- How reliable is John Murtha Johnstown Cambria County Airport (JST)?
- Flights from Johnstown left within 15 minutes of schedule roughly 80% of the time across 3,864 flights of official history — a solid, better-than-average operational record. The cancellation rate runs about 3.6%. It's advisory context, not a guarantee for any single flight.
Planning a trip through Johnstown?
Score real flights to and from JST on reliability, weather, and connection safety — not just price.