IAG to PIE flight delays & on-time performance
Nonstop flights from Niagara Falls International Airport to St. Petersburg Clearwater International Airport · 1,069 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at IAG or PIE right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Niagara Falls (IAG) to St. Petersburg (PIE) arrived on time 69% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1.7% were cancelled, and 9% arrived an hour or more late.
- Allegiant Air is the only airline reporting nonstop flights on this route.
- Departures scheduled around 11am did best (76% on time); around 7pm did worst (68%).
- Saturday was the most reliable day to fly (90% on time) and Thursday the least (65%).
- The largest source of delay minutes was late-arriving aircraft (60%).
Which airline is most on time from IAG to PIE?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Allegiant Air | 69% | 1.7% | 21 min | 9.3% | 120 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 9am58%12 flights
- 10am83%12 flights
- 11am76%39 flights
- 6pm70%10 flights
- 7pm68%25 flights
- 8pm80%11 flights
Best day of the week
On-time arrival rate by day of departure.
- Tuesday63%0.0% cancelled
- Thursday65%0.0% cancelled
- Friday0%50.0% cancelled
- Saturday90%0.0% cancelled
- Sunday72%2.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft60%
- Air traffic control & airport congestion26%
- Airline (crew, maintenance, cleaning, fueling)12%
- Extreme weather2%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
IAG to PIE: common questions
- How often are IAG to PIE flights on time?
- 69% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Niagara Falls to St. Petersburg cancelled?
- 1.7% of scheduled flights were cancelled (2 of 120).
- How long are typical delays?
- Across all flights the average arrival delay was 21 min (early arrivals count as zero). Flights that were late arrived 63 min behind schedule on average, and 9.3% of flights were an hour or more late.
- How long is taxi time at IAG?
- Flights on this route spent 17 min taxiing from the gate to takeoff on average.
Related routes
More flights to St. Petersburg
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: IAG → PIE, nonstop flights by US airlines that report to the DOT. How we calculate this.