Flight OH5251
Flight OH5251
Chicago (ORD) to Norfolk (ORF)
Historically, this flight arrives 15+ minutes late 53% of the time, and when it is late the delay averages 82 minutes. It was cancelled 9.6% of the time.
- On-time arrivals
- 46.9%
- Less than 15 minutes late
- Cancelled
- 9.6%
- Of scheduled flights
- Average delay when late
- 82 min
- Flights arriving 15+ minutes late
- Flights tracked
- 73
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 54%
- Airline (crew, maintenance, cleaning) 34%
- Air traffic control & airport 9%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Chattanooga (CHA) to Dallas-Fort Worth (DFW)
Historically, this flight arrives 15+ minutes late 14% of the time, and when it is late the delay averages 96 minutes. It was cancelled 2.3% of the time.
- On-time arrivals
- 86.0%
- Less than 15 minutes late
- Cancelled
- 2.3%
- Of scheduled flights
- Average delay when late
- 96 min
- Flights arriving 15+ minutes late
- Flights tracked
- 44
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 76%
- Extreme weather 15%
- Air traffic control & airport 9%
- Late-arriving aircraft 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Philadelphia (PHL) to Kansas City (MCI)
Historically, this flight arrives 15+ minutes late 51% of the time, and when it is late the delay averages 66 minutes. It was cancelled 6.8% of the time.
- On-time arrivals
- 48.8%
- Less than 15 minutes late
- Cancelled
- 6.8%
- Of scheduled flights
- Average delay when late
- 66 min
- Flights arriving 15+ minutes late
- Flights tracked
- 44
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 46%
- Airline (crew, maintenance, cleaning) 21%
- Extreme weather 21%
- Air traffic control & airport 12%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Dallas-Fort Worth (DFW) to Lawton (LAW)
Historically, this flight arrives 15+ minutes late 31% of the time, and when it is late the delay averages 71 minutes. It was cancelled 4.9% of the time.
- On-time arrivals
- 69.2%
- Less than 15 minutes late
- Cancelled
- 4.9%
- Of scheduled flights
- Average delay when late
- 71 min
- Flights arriving 15+ minutes late
- Flights tracked
- 41
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 48%
- Airline (crew, maintenance, cleaning) 30%
- Extreme weather 18%
- Air traffic control & airport 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Lawton (LAW) to Dallas-Fort Worth (DFW)
Historically, this flight arrives 15+ minutes late 23% of the time, and when it is late the delay averages 100 minutes. It was cancelled 4.9% of the time.
- On-time arrivals
- 76.9%
- Less than 15 minutes late
- Cancelled
- 4.9%
- Of scheduled flights
- Average delay when late
- 100 min
- Flights arriving 15+ minutes late
- Flights tracked
- 41
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 77%
- Airline (crew, maintenance, cleaning) 15%
- Extreme weather 8%
- Air traffic control & airport 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Washington (DCA) to Rochester (ROC)
Historically, this flight arrives 15+ minutes late 27% of the time, and when it is late the delay averages 67 minutes. It was cancelled 10.8% of the time.
- On-time arrivals
- 72.7%
- Less than 15 minutes late
- Cancelled
- 10.8%
- Of scheduled flights
- Average delay when late
- 67 min
- Flights arriving 15+ minutes late
- Flights tracked
- 37
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 73%
- Air traffic control & airport 18%
- Airline (crew, maintenance, cleaning) 5%
- Extreme weather 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Rochester (ROC) to Washington (DCA)
Historically, this flight arrives 15+ minutes late 39% of the time, and when it is late the delay averages 63 minutes. It was cancelled 10.8% of the time.
- On-time arrivals
- 60.6%
- Less than 15 minutes late
- Cancelled
- 10.8%
- Of scheduled flights
- Average delay when late
- 63 min
- Flights arriving 15+ minutes late
- Flights tracked
- 37
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 57%
- Extreme weather 23%
- Air traffic control & airport 18%
- Airline (crew, maintenance, cleaning) 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Washington (DCA) to Knoxville/Maryville (TYS)
Historically, this flight arrives 15+ minutes late 57% of the time, and when it is late the delay averages 144 minutes. It was cancelled 20.7% of the time.
- On-time arrivals
- 43.5%
- Less than 15 minutes late
- Cancelled
- 20.7%
- Of scheduled flights
- Average delay when late
- 144 min
- Flights arriving 15+ minutes late
- Flights tracked
- 29
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 70%
- Air traffic control & airport 16%
- Extreme weather 9%
- Airline (crew, maintenance, cleaning) 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Knoxville/Maryville (TYS) to Washington (DCA)
Historically, this flight arrives 15+ minutes late 45% of the time, and when it is late the delay averages 298 minutes. It was cancelled 24.1% of the time.
- On-time arrivals
- 54.5%
- Less than 15 minutes late
- Cancelled
- 24.1%
- Of scheduled flights
- Average delay when late
- 298 min
- Flights arriving 15+ minutes late
- Flights tracked
- 29
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 52%
- Extreme weather 41%
- Air traffic control & airport 7%
- Security 0%
- Airline (crew, maintenance, cleaning) 0%
Share of delay minutes airlines attributed to each cause (BTS).
Philadelphia (PHL) to Memphis (MEM)
Only 9 flights on record, which is too few for reliable odds.
- On-time arrivals
- 88.9%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 58 min
- Flights arriving 15+ minutes late
- Flights tracked
- 9
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 100%
- Airline (crew, maintenance, cleaning) 0%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Portland (PWM) to Washington (DCA)
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 | 87.5% | 8 |
| November 2025 | 57.1% | 29 |
| December 2025 | 25.0% | 30 |
| January 2026 | 70.6% | 57 |
| February 2026 | 55.6% | 39 |
| March 2026 | 52.0% | 31 |
| April 2026 | 78.6% | 30 |
| May 2026 | 78.0% | 42 |
| June 2026 | 75.9% | 58 |
| July 2026 | 51.1% | 54 |
| August 2026 | 50.0% | 6 |
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