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Airport Reliability

JST · Johnstown

Johnstown, PA (JST)

76%
Departures within 15 minutes
44 min
Average departure delay
69%
Arrivals within 15 minutes
4.2%
Departures cancelled

Based on 709 departures and 709 arrivals. Data through May 2026.

What the data says

Mornings have a slight edge.

Departures between 6–9 AM arrived on time 74% of the time, against 68% between 12–3 PM.

Mondays have been rough.

Departures from JST arrived on time 81% of the time on Saturdays and just 63% on Mondays. That gap is worth planning around.

Trending in the right direction.

Departures from JST arrived on time 68% of the time over the last three months in the data, compared with 59% in the three months before that.

When JST gets messy

On-time by departure window
  • 6–9 AM74%(335 flights)
  • 9 AM–12 PM—(4 flights)
  • 12–3 PM68%(338 flights)
On-time by weekday
  • Mon63%(97 flights)
  • Tue72%(92 flights)
  • Wed71%(100 flights)
  • Thu71%(97 flights)
  • Fri73%(101 flights)
  • Sat81%(91 flights)
  • Sun69%(99 flights)
On-time trend by month
85%
May

Jun 70% → May 85% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202570%60
July 202576%62
August 202575%61
September 202587%60
October 202595%62
November 202563%57
December 202547%51
January 202669%54
February 202662%55
March 202659%54
April 202660%48
May 202685%53

Airlines departing JST

Busiest routes from JST

Based on 709 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.