Flight OH5531
Flight OH5531
Milwaukee (MKE) to Philadelphia (PHL)
Historically, this flight arrives 15+ minutes late 21% of the time, and when it is late the delay averages 62 minutes. It was cancelled 21.1% of the time.
- On-time arrivals
- 78.6%
- Less than 15 minutes late
- Cancelled
- 21.1%
- Of scheduled flights
- Average delay when late
- 62 min
- Flights arriving 15+ minutes late
- Flights tracked
- 71
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 88%
- Extreme weather 6%
- Air traffic control & airport 4%
- Airline (crew, maintenance, cleaning) 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Philadelphia (PHL) to Milwaukee (MKE)
Historically, this flight arrives 15+ minutes late 26% of the time, and when it is late the delay averages 109 minutes. It was cancelled 8.7% of the time.
- On-time arrivals
- 73.8%
- Less than 15 minutes late
- Cancelled
- 8.7%
- Of scheduled flights
- Average delay when late
- 109 min
- Flights arriving 15+ minutes late
- Flights tracked
- 46
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 65%
- Airline (crew, maintenance, cleaning) 21%
- Air traffic control & airport 13%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Charlotte (CLT) to Knoxville/Maryville (TYS)
Historically, this flight arrives 15+ minutes late 39% of the time, and when it is late the delay averages 65 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 61.4%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 65 min
- Flights arriving 15+ minutes late
- Flights tracked
- 44
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 56%
- Airline (crew, maintenance, cleaning) 26%
- Air traffic control & airport 18%
- Security 0%
- Extreme weather 0%
Share of delay minutes airlines attributed to each cause (BTS).
Buffalo (BUF) to Washington (DCA)
Historically, this flight arrives 15+ minutes late 54% of the time, and when it is late the delay averages 145 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 45.7%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 145 min
- Flights arriving 15+ minutes late
- Flights tracked
- 35
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 79%
- Air traffic control & airport 16%
- Airline (crew, maintenance, cleaning) 4%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Washington (DCA) to Buffalo (BUF)
Historically, this flight arrives 15+ minutes late 40% of the time, and when it is late the delay averages 160 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 60.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 160 min
- Flights arriving 15+ minutes late
- Flights tracked
- 35
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 80%
- Extreme weather 11%
- Airline (crew, maintenance, cleaning) 6%
- Air traffic control & airport 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Lexington (LEX) to Philadelphia (PHL)
Historically, this flight arrives 15+ minutes late 4% of the time, and when it is late the delay averages 29 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 96.3%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 29 min
- Flights arriving 15+ minutes late
- Flights tracked
- 27
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 100%
- Airline (crew, maintenance, cleaning) 0%
- Late-arriving aircraft 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Baton Rouge (BTR) to Dallas-Fort Worth (DFW)
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
Washington (DCA) to Hartford (BDL)
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
Chicago (ORD) to Charleston (CHS)
Only 1 flight 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
- 1
- Scheduled flights in the period
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 100.0% | 2 |
| October 2025 | 96.2% | 26 |
| November 2025 | 100.0% | 3 |
| January 2026 | 66.7% | 9 |
| February 2026 | 0.0% | 2 |
| March 2026 | 56.2% | 48 |
| April 2026 | 58.3% | 36 |
| May 2026 | 69.2% | 40 |
| June 2026 | 82.4% | 60 |
| July 2026 | 33.3% | 8 |
| August 2026 | 68.2% | 29 |
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