John Murtha Johnstown Cambria County Airport (JST): Delays & On-Time Performance
Data through July 2026
John Murtha Johnstown Cambria County Airport (JST) in Johnstown, PA is a middle-of-the-pack performer: 79% of departures are on time, within a few points of the national 78%. It hosts 1 airlines flying 2 departures a day to 2 destinations, with cancellations at 3.2%.
- Departures on-time
- 79%
- left <15 min late
- Avg dep delay
- 42 min
- Arrivals on-time
- 70%
- Cancelled
- 3.2%
- Destinations
- 2
- nonstop
- Airlines
- 1
Plan your departure from JST
The choices most likely to improve your odds, based on this airport’s historical record.
- Best day to fly
- Thursday
- 79% on-time
- Cancellation risk
- 3.2%
- above the US average
Monthly on-time trend
Best time of day to depart from JST
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 73% | 47 min |
| Tuesday | 77% | 47 min |
| Wednesday | 74% | 45 min |
| Thursdaybest | 79% | 38 min |
| Friday | 72% | 54 min |
| Saturday | 77% | 36 min |
| Sunday | 76% | 43 min |
Busiest routes from JST
| Route | Flights/12mo | On-time | Avg delay |
|---|---|---|---|
| JST → ORD (Chicago) | 362 | 72% | 50 min |
| JST → IAD (Washington) | 330 | 78% | 39 min |
Where flights into JST come from
| Route | Flights/12mo | On-time | Avg delay |
|---|---|---|---|
| ORD (Chicago) → JST | 362 | 63% | 52 min |
| IAD (Washington) → JST | 330 | 77% | 36 min |
What causes delays at JST
Share of total delay minutes by cause, as reported by carriers to the US DOT, weighted across routes departing JST.
- Late-arriving aircraft53%
- Airline operations25%
- National airspace system11%
- Weather11%
Alternative airports near Johnstown
Other airports within 120 miles, compared on departure reliability.
| Airport | Distance | On-time departures | Avg delay |
|---|---|---|---|
| SCE — State College Regional Airport | 63 mi | 79% | 22 min |
| MGW — Morgantown Municipal Airport Walter L. (Bill) Hart Field | 74 mi | 78% | 47 min |
| PIT — Pittsburgh International Airport | 75 mi | 83% | 14 min |
| MDT — Harrisburg International Airport | 110 mi | 79% | 21 min |
| IAD — Washington Dulles International Airport | 120 mi | 83% | 15 min |
Compare the airport-level record first, then check the exact route you plan to book.
Frequently asked questions
- How often are flights delayed at JST?
- 21% of departures from John Murtha Johnstown Cambria County Airport left 15+ minutes late between 2024-07 and 2026-07, with an average departure delay of 42 minutes. The national on-time average over the same period was 78%.
- How often are flights cancelled at JST?
- 3.2% of scheduled departures from JST were cancelled in this period, compared with a national rate of 1.6%.
Popular route pages from this airport
Related guides
Based on 1,483 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.