Airport · JST · Johnstown, Pennsylvania
Johnstown, PA
Johnstown, PA posts below-median on-time performance among the 382 tracked U.S. airports, as a smaller regional airport. According to the U.S. DOT Bureau of Transportation Statistics, drawn from 7,267 flights (2020–2025); its biggest delay driver is late aircraft.
Data updated 2026-06-13
- 82.1%
- On-time
- Top 66%
- on-time, US airports
- 143 min
- Delay when late
- 1.51%
- Cancelled
Key Performance Metrics
Total Flights
7,267
Best Month
May 94.7%
Worst Month
Nov 88.1%
Delayed
1,298
Cancelled
110
JST on-time rate vs. the national average
Ahead of the U.S. average across all 382 tracked airports.
Where JST sits among all 382 tracked airports
JST's 82.1% on-time rate falls in the 80-85% band, the 192-airport band it shares.
National on-time-rate distribution
- 60-65% 1
1 airport between 60% and 65% on-time
1 airports
- 65-70% 4
4 airports between 65% and 70% on-time
4 airports
- 70-75% 9
9 airports between 70% and 75% on-time
9 airports
- 75-80% 48
48 airports between 75% and 80% on-time
48 airports
- 80-85%
192 airports between 80% and 85% on-time
192 airports
- 85-90%
116 airports between 85% and 90% on-time
116 airports
- 90-95% 12
12 airports between 90% and 95% on-time
12 airports
What this shows JST is marked in the 80-85% band.
Delay Cause Breakdown
Top delay cause: Late Aircraft. Total delay minutes: 88,223.
JST - seasonal on-time pattern
Best: May (94.7%) · worst: November (88.1%)
Seasonal Performance Patterns
Monthly averages across all years of data. Best month: May (94.7% on-time). Most delays: November (88.1% on-time).
| Month | Avg Flights | Avg Delayed | Avg Cancelled | On-Time % |
|---|---|---|---|---|
| December | 118 | 25 | 3 | 90.1% |
| November | 118 | 27 | 1 | 88.1% |
| October | 124 | 22 | 1 | 92.6% |
| September | 120 | 18 | 0 | 94.5% |
| August | 124 | 23 | 1 | 92.7% |
| July | 124 | 25 | 1 | 91% |
| June | 116 | 25 | 0 | 90.7% |
| May | 120 | 15 | 0 | 94.7% |
| April | 116 | 19 | 1 | 90.9% |
| March | 120 | 14 | 1 | 94.5% |
| February | 110 | 18 | 5 | 92.3% |
| January | 120 | 22 | 6 | 90.5% |
Year-Over-Year Performance
Annual flight volume and on-time trends at JST.
JST - on-time rate by year
2020–2025, year-over-year trend.
| Year | Flights | Delayed | Cancelled | On-Time % |
|---|---|---|---|---|
| 2025 | 1,454 | 145 | 23 | 90% |
| 2024 | 1,462 | 133 | 17 | 90.9% |
| 2023 | 1,452 | 108 | 12 | 92.6% |
| 2022 | 1,448 | 123 | 31 | 91.5% |
| 2021 | 1,350 | 77 | 24 | 94.3% |
| 2020 | 101 | 5 | 3 | 95% |
Cancellation & Diversion Analysis
Flight disruption statistics for Johnstown, PA.
Cancellation Rate
1.51%
110 of 7,267 flights
Diversion Rate
0.06%
4 of 7,267 flights
Delay Rate
17.9%
1,298 of 7,267 flights
Monthly Performance
Recent 24 months of flight data.
| Period | Flights | Dep Delayed | Arr Delayed | Cancelled | Diverted |
|---|---|---|---|---|---|
| Dec 2025 | 120 | 21 | 26 | 9 | 0 |
| Nov 2025 | 118 | 20 | 23 | 2 | 0 |
| Oct 2025 | 124 | 4 | 14 | 0 | 0 |
| Sep 2025 | 120 | 7 | 11 | 0 | 0 |
| Aug 2025 | 124 | 11 | 16 | 0 | 1 |
| Jul 2025 | 124 | 13 | 21 | 0 | 0 |
| Jun 2025 | 120 | 17 | 23 | 0 | 0 |
| May 2025 | 124 | 4 | 13 | 0 | 0 |
| Apr 2025 | 120 | 9 | 10 | 0 | 0 |
| Mar 2025 | 124 | 11 | 14 | 0 | 0 |
| Feb 2025 | 112 | 15 | 16 | 9 | 0 |
| Jan 2025 | 124 | 13 | 16 | 3 | 0 |
| Dec 2024 | 124 | 15 | 20 | 0 | 0 |
| Nov 2024 | 118 | 10 | 15 | 2 | 0 |
| Oct 2024 | 124 | 10 | 16 | 0 | 0 |
| Sep 2024 | 120 | 9 | 17 | 0 | 0 |
| Aug 2024 | 124 | 8 | 19 | 0 | 0 |
| Jul 2024 | 124 | 10 | 12 | 0 | 0 |
| Jun 2024 | 120 | 10 | 17 | 0 | 0 |
| May 2024 | 124 | 16 | 15 | 1 | 0 |
| Apr 2024 | 120 | 17 | 16 | 0 | 0 |
| Mar 2024 | 124 | 5 | 8 | 2 | 0 |
| Feb 2024 | 116 | 7 | 8 | 3 | 0 |
| Jan 2024 | 124 | 16 | 14 | 9 | 0 |
Top Routes from JST
Busiest routes to and from Johnstown, PA.
| Route | Flights | On-Time | Distance |
|---|---|---|---|
| IAD (Washington) → JST (Johnstown) | 1,559 | 83.4% | 120 mi |
| JST (Johnstown) → IAD (Washington) | 1,531 | 85.3% | 120 mi |
| JST (Johnstown) → ORD (Chicago) | 1,167 | 81.1% | 487 mi |
| ORD (Chicago) → JST (Johnstown) | 1,167 | 74.8% | 487 mi |
Airports With a Similar On-Time Rate
Other U.S. airports nationwide whose on-time rate is closest to Johnstown, PA's 82.1%.
Other Airports in Pennsylvania
Compare performance with other Pennsylvania airports.
Philadelphia, PA
Philadelphia · 1,060,086 flights
Pittsburgh, PA
Pittsburgh · 462,554 flights
Harrisburg, PA
Harrisburg · 60,271 flights
Allentown/Bethlehem/Easton, PA
Allentown/Bethlehem/Easton · 48,496 flights
Scranton/Wilkes-Barre, PA
Scranton/Wilkes-Barre · 21,551 flights
State College, PA
State College · 9,139 flights
Latrobe, PA
Latrobe · 8,539 flights
Erie, PA
Erie · 3,197 flights
Keep exploring
More flight data around Johnstown, PA.
Pennsylvania flight data
Statewide on-time and delay aggregates, plus every reporting airport in Pennsylvania.
View PA data →Airport rankings
See where JST sits among U.S. airports on on-time rate and average delay.
Best on-time airports →Compare airports
Put JST head-to-head with another airport on delays and reliability.
Open comparison tool →What the Data Says About JST
Johnstown, PA in Johnstown, Pennsylvania handled 7,267 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 82.1% on-time departure rate. Of those flights, 1,298 experienced delays, 110 were cancelled, and 4 were diverted. The cancellation rate works out to 1.51%, the diversion rate to 0.06%, and the average delay when departures run late is 142.9 minutes. These figures are the baseline for comparing JST against other airports in the same state and nationally.
Breaking down what drives delays at JST, Late Aircraft leads the pack. Late Aircraft accounts for 45.0% of total delay minutes, followed by Carrier at 39.3% and Weather at 9.8%. Weather contributes 9.8% of delay minutes at this airport, while security holds the smallest share at 0.0%. Travelers often overestimate the weather share; the BTS categorization shows late-arriving aircraft and carrier operations as the larger contributors.
Seasonally, May runs the cleanest at JST with a 94.7% on-time rate, while November is the roughest at 88.1% - a 7-point swing between best and worst month. Volume peaks in October, when average flights hit 124. The busiest route connecting JST is to IAD (Washington), with 1,559 flights at a 83.4% on-time rate. Combine these numbers - 82.1% on-time, 142.9-minute average delay, 1.51% cancellation rate, and you have a concrete picture of departure reliability at Johnstown, PA.
Frequently Asked Questions
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Flight Guides
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Using JST's data
An airport-level on-time rate is a starting point, not a guarantee for your specific flight.
- Check the busiest route from JST before you book a connection. See top routes
- Travel in May rather than November if your dates are flexible. Seasonal patterns
- Scores vary by airline and route within the same airport; check the specific carrier you're flying. Browse airlines
On-time rate reflects the BTS historical average across all reporting carriers at this airport, not any single flight or airline.
Related
Source: U.S. Bureau of Transportation Statistics (BTS) Airline on-time performance and operational reliability · 2025
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. Airport figures are computed directly from BTS On-Time Performance data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.