Flight YX4479
Republic Airways flight YX4479
Looking for YX4479 in the air…
New York (LGA) to Boston (BOS)
Historically, this flight arrives 15+ minutes late 39% of the time, and when it is late the delay averages 76 minutes. It was cancelled 7.0% of the time.
- On-time arrivals
- 61.3%
- Less than 15 minutes late
- Cancelled
- 7.0%
- Of scheduled flights
- Average delay when late
- 76 min
- Flights arriving 15+ minutes late
- Flights tracked
- 114
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 59%
- Air traffic control & airport 23%
- Airline (crew, maintenance, cleaning) 18%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
New York (LGA) to Pittsburgh (PIT)
Historically, this flight arrives 15+ minutes late 18% of the time, and when it is late the delay averages 94 minutes. It was cancelled 4.0% of the time.
- On-time arrivals
- 81.9%
- Less than 15 minutes late
- Cancelled
- 4.0%
- Of scheduled flights
- Average delay when late
- 94 min
- Flights arriving 15+ minutes late
- Flights tracked
- 75
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 63%
- Airline (crew, maintenance, cleaning) 20%
- Air traffic control & airport 17%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Pittsburgh (PIT) to New York (LGA)
Historically, this flight arrives 15+ minutes late 34% of the time, and when it is late the delay averages 86 minutes. It was cancelled 7.8% of the time.
- On-time arrivals
- 66.1%
- Less than 15 minutes late
- Cancelled
- 7.8%
- Of scheduled flights
- Average delay when late
- 86 min
- Flights arriving 15+ minutes late
- Flights tracked
- 64
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 54%
- Airline (crew, maintenance, cleaning) 26%
- Late-arriving aircraft 18%
- Extreme weather 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Boston (BOS) to New York (LGA)
Historically, this flight arrives 15+ minutes late 37% of the time, and when it is late the delay averages 79 minutes. It was cancelled 3.4% of the time.
- On-time arrivals
- 63.2%
- Less than 15 minutes late
- Cancelled
- 3.4%
- Of scheduled flights
- Average delay when late
- 79 min
- Flights arriving 15+ minutes late
- Flights tracked
- 59
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 46%
- Air traffic control & airport 42%
- Airline (crew, maintenance, cleaning) 8%
- Extreme weather 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Pittsburgh (PIT) to New York (JFK)
Historically, this flight arrives 15+ minutes late 7% of the time, and when it is late the delay averages 46 minutes. It was cancelled 4.5% of the time.
- On-time arrivals
- 92.9%
- Less than 15 minutes late
- Cancelled
- 4.5%
- Of scheduled flights
- Average delay when late
- 46 min
- Flights arriving 15+ minutes late
- Flights tracked
- 44
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 64%
- Late-arriving aircraft 23%
- Air traffic control & airport 14%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Nantucket (ACK) to Boston (BOS)
Historically, this flight arrives 15+ minutes late 0% of the time. It was cancelled 0.0% of the time.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- —
- Flights arriving 15+ minutes late
- Flights tracked
- 27
- Scheduled flights in the period
Buffalo (BUF) to Washington (DCA)
Historically, this flight arrives 15+ minutes late 15% of the time, and when it is late the delay averages 42 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 85.2%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 42 min
- Flights arriving 15+ minutes late
- Flights tracked
- 27
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 86%
- Air traffic control & airport 14%
- Late-arriving aircraft 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
St Louis (STL) to New York (LGA)
Only 2 flights on record, which is too few for reliable odds.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- —
- Flights arriving 15+ minutes late
- Flights tracked
- 2
- Scheduled flights in the period
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 100.0% | 2 |
| October 2025 | 84.6% | 26 |
| November 2025 | 64.3% | 29 |
| December 2025 | 54.9% | 53 |
| January 2026 | 79.3% | 32 |
| February 2026 | 68.2% | 24 |
| March 2026 | 60.7% | 30 |
| April 2026 | 80.0% | 30 |
| May 2026 | 81.1% | 39 |
| June 2026 | 77.8% | 56 |
| July 2026 | 76.5% | 57 |
| August 2026 | 88.2% | 34 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data