Flight UA559
United Airlines flight UA559
Looking for UA559 in the air…
Alerts at this flight's airports
Newark (EWR) to Miami (MIA)
Historically, this flight arrives 15+ minutes late 9% of the time, and when it is late the delay averages 65 minutes. It was cancelled 1.1% of the time.
- On-time arrivals
- 91.3%
- Less than 15 minutes late
- Cancelled
- 1.1%
- Of scheduled flights
- Average delay when late
- 65 min
- Flights arriving 15+ minutes late
- Flights tracked
- 175
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 43%
- Extreme weather 30%
- Airline (crew, maintenance, cleaning) 26%
- Late-arriving aircraft 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Newark (EWR) to Orlando (MCO)
Historically, this flight arrives 15+ minutes late 0% of the time. It was cancelled 4.3% of the time.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 4.3%
- Of scheduled flights
- Average delay when late
- —
- Flights arriving 15+ minutes late
- Flights tracked
- 23
- Scheduled flights in the period
San Francisco (SFO) to Medford (MFR)
Only 4 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
- 4
- Scheduled flights in the period
Denver (DEN) to Fort Myers (RSW)
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
Durango (DRO) to Denver (DEN)
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
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Headlines found by Google News; stories open on the publisher's site.
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 96.4% | 29 |
| October 2025 | 90.0% | 30 |
| November 2025 | 90.3% | 31 |
| December 2025 | 94.1% | 17 |
| February 2026 | 93.3% | 17 |
| March 2026 | 87.1% | 31 |
| April 2026 | 100.0% | 30 |
| May 2026 | 89.5% | 19 |
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