Niagara Falls International Airport (IAG): Delays & On-Time Performance
Data through May 2026
Build in buffer at Niagara Falls International Airport (IAG): only 73% of departures leave on time, 5 points below the US average, and the mean departure delay is 25 minutes. It remains a major gateway for Niagara Falls, NY, with 1 carriers serving 4 nonstop destinations.
- Departures on-time
- 73%
- left <15 min late
- Avg dep delay
- 25 min
- Arrivals on-time
- 81%
- Cancelled
- 1.8%
- Destinations
- 4
- nonstop
- Airlines
- 1
Plan your departure from IAG
The choices most likely to improve your odds, based on this airport’s historical record.
- Best day to fly
- Tuesday
- 77% on-time
- Cancellation risk
- 1.8%
- close to the US average
Monthly on-time trend
Best time of day to depart from IAG
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 74% | 31 min |
| Tuesdaybest | 77% | 11 min |
| Wednesday | 75% | 12 min |
| Thursday | 64% | 21 min |
| Friday | 68% | 35 min |
| Saturday | 73% | 23 min |
| Sunday | 61% | 34 min |
Busiest routes from IAG
| Route | Flights/12mo | On-time | Avg delay |
|---|---|---|---|
| IAG → PGD (Punta Gorda) | 203 | 75% | 23 min |
| IAG → PIE (St. Petersburg) | 126 | 67% | 19 min |
Where flights into IAG come from
| Route | Flights/12mo | On-time | Avg delay |
|---|---|---|---|
| PGD (Punta Gorda) → IAG | 202 | 86% | 14 min |
| PIE (St. Petersburg) → IAG | 126 | 83% | 8 min |
What causes delays at IAG
Share of total delay minutes by cause, as reported by carriers to the US DOT, weighted across routes departing IAG.
- Late-arriving aircraft58%
- Airline operations18%
- National airspace system21%
- Weather4%
Alternative airports near Niagara Falls
Other airports within 120 miles, compared on departure reliability.
| Airport | Distance | On-time departures | Avg delay |
|---|---|---|---|
| BUF — Buffalo Niagara International Airport | 16 mi | 80% | 17 min |
| ROC — Frederick Douglass Greater Rochester International Airport | 64 mi | 79% | 18 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 IAG?
- 27% of departures from Niagara Falls International Airport left 15+ minutes late between 2024-06 and 2026-05, with an average departure delay of 25 minutes. The national on-time average over the same period was 78%.
- How often are flights cancelled at IAG?
- 1.8% of scheduled departures from IAG were cancelled in this period, compared with a national rate of 1.6%.
Popular route pages from this airport
Related guides
Based on 846 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.