Airport · ITH · Ithaca/Cortland, New York
Ithaca/Cortland, NY
Ithaca/Cortland, NY posts top-quartile 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 6,186 flights (2020–2025); its biggest delay driver is late aircraft.
Data updated 2026-06-13
- 87.6%
- On-time
- Top 12%
- on-time, US airports
- 96 min
- Delay when late
- 1.92%
- Cancelled
Key Performance Metrics
Total Flights
6,186
Best Month
Sep 97.6%
Worst Month
Feb 92.3%
Delayed
767
Cancelled
119
ITH on-time rate vs. the national average
Ahead of the U.S. average across all 382 tracked airports.
Where ITH sits among all 382 tracked airports
ITH's 87.6% on-time rate falls in the 85-90% band, the 116-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 ITH is marked in the 85-90% band.
Delay Cause Breakdown
Top delay cause: Late Aircraft. Total delay minutes: 38,522.
ITH - seasonal on-time pattern
Best: September (97.6%) · worst: February (92.3%)
Seasonal Performance Patterns
Monthly averages across all years of data. Best month: September (97.6% on-time). Most delays: February (92.3% on-time).
| Month | Avg Flights | Avg Delayed | Avg Cancelled | On-Time % |
|---|---|---|---|---|
| December | 98 | 12 | 0 | 94.3% |
| November | 107 | 8 | 0 | 96.8% |
| October | 90 | 6 | 0 | 97.1% |
| September | 85 | 6 | 1 | 97.6% |
| August | 96 | 17 | 2 | 93.3% |
| July | 87 | 15 | 2 | 92.4% |
| June | 100 | 15 | 4 | 93.6% |
| May | 111 | 9 | 2 | 95.8% |
| April | 117 | 14 | 7 | 95.5% |
| March | 95 | 12 | 0 | 93.5% |
| February | 114 | 16 | 2 | 92.3% |
| January | 120 | 22 | 3 | 92.5% |
Year-Over-Year Performance
Annual flight volume and on-time trends at ITH.
ITH - on-time rate by year
2020–2025, year-over-year trend.
| Year | Flights | Delayed | Cancelled | On-Time % |
|---|---|---|---|---|
| 2025 | 8 | 0 | 0 | 100% |
| 2024 | 1,620 | 91 | 24 | 94.4% |
| 2023 | 1,471 | 78 | 25 | 94.7% |
| 2022 | 1,228 | 74 | 26 | 94% |
| 2021 | 904 | 40 | 0 | 95.6% |
| 2020 | 955 | 57 | 44 | 94% |
Cancellation & Diversion Analysis
Flight disruption statistics for Ithaca/Cortland, NY.
Cancellation Rate
1.92%
119 of 6,186 flights
Diversion Rate
0.06%
4 of 6,186 flights
Delay Rate
12.4%
767 of 6,186 flights
Monthly Performance
Recent 24 months of flight data.
| Period | Flights | Dep Delayed | Arr Delayed | Cancelled | Diverted |
|---|---|---|---|---|---|
| Mar 2025 | 8 | 0 | 0 | 0 | 0 |
| Dec 2024 | 118 | 7 | 8 | 0 | 0 |
| Nov 2024 | 116 | 1 | 4 | 0 | 0 |
| Oct 2024 | 124 | 3 | 4 | 0 | 0 |
| Sep 2024 | 120 | 2 | 4 | 0 | 0 |
| Aug 2024 | 170 | 13 | 19 | 9 | 0 |
| Jul 2024 | 124 | 16 | 19 | 1 | 0 |
| Jun 2024 | 121 | 10 | 15 | 6 | 0 |
| May 2024 | 243 | 12 | 12 | 2 | 0 |
| Apr 2024 | 120 | 5 | 9 | 0 | 0 |
| Mar 2024 | 124 | 10 | 11 | 0 | 0 |
| Feb 2024 | 116 | 4 | 2 | 1 | 0 |
| Jan 2024 | 124 | 8 | 12 | 5 | 0 |
| Dec 2023 | 124 | 7 | 7 | 0 | 0 |
| Nov 2023 | 122 | 6 | 5 | 0 | 0 |
| Oct 2023 | 137 | 3 | 5 | 0 | 1 |
| Sep 2023 | 125 | 4 | 10 | 6 | 0 |
| Aug 2023 | 124 | 4 | 17 | 0 | 0 |
| Jul 2023 | 124 | 8 | 17 | 9 | 0 |
| Jun 2023 | 120 | 7 | 11 | 4 | 0 |
| May 2023 | 124 | 5 | 10 | 0 | 0 |
| Apr 2023 | 120 | 6 | 14 | 2 | 0 |
| Mar 2023 | 124 | 10 | 11 | 1 | 0 |
| Feb 2023 | 112 | 11 | 9 | 1 | 0 |
Top Routes from ITH
Busiest routes to and from Ithaca/Cortland, NY.
| Route | Flights | On-Time | Distance |
|---|---|---|---|
| JFK (New York) → ITH (Ithaca/Cortland) | 1,442 | 83.3% | 189 mi |
| ITH (Ithaca/Cortland) → JFK (New York) | 1,441 | 86.6% | 189 mi |
| ITH (Ithaca/Cortland) → DTW (Detroit) | 1,125 | 91.2% | 353 mi |
| DTW (Detroit) → ITH (Ithaca/Cortland) | 1,124 | 90.3% | 353 mi |
Airports With a Similar On-Time Rate
Other U.S. airports nationwide whose on-time rate is closest to Ithaca/Cortland, NY's 87.6%.
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Compare performance with other New York airports.
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Keep exploring
More flight data around Ithaca/Cortland, NY.
New York flight data
Statewide on-time and delay aggregates, plus every reporting airport in New York.
View NY data →Airport rankings
See where ITH sits among U.S. airports on on-time rate and average delay.
Best on-time airports →Compare airports
Put ITH head-to-head with another airport on delays and reliability.
Open comparison tool →What the Data Says About ITH
Ithaca/Cortland, NY in Ithaca/Cortland, New York handled 6,186 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 87.6% on-time departure rate. Of those flights, 767 experienced delays, 119 were cancelled, and 4 were diverted. The cancellation rate works out to 1.92%, the diversion rate to 0.06%, and the average delay when departures run late is 96.2 minutes. These figures are the baseline for comparing ITH against other airports in the same state and nationally.
Breaking down what drives delays at ITH, Late Aircraft leads the pack. Late Aircraft accounts for 34.4% of total delay minutes, followed by Carrier at 32.6% and Weather at 18.6%. Weather contributes 18.6% of delay minutes at this airport, while security holds the smallest share at 0.3%. Travelers often overestimate the weather share; the BTS categorization shows late-arriving aircraft and carrier operations as the larger contributors.
Seasonally, September runs the cleanest at ITH with a 97.6% on-time rate, while February is the roughest at 92.3% - a 5-point swing between best and worst month. Volume peaks in January, when average flights hit 120. The busiest route connecting ITH is to JFK (New York), with 1,442 flights at a 83.3% on-time rate. Combine these numbers - 87.6% on-time, 96.2-minute average delay, 1.92% cancellation rate, and you have a concrete picture of departure reliability at Ithaca/Cortland, NY.
Frequently Asked Questions
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Flight Guides
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Using ITH's data
An airport-level on-time rate is a starting point, not a guarantee for your specific flight.
- Check the busiest route from ITH before you book a connection. See top routes
- Travel in September rather than February 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.