Flight UA2171
United Airlines flight UA2171
Looking for UA2171 in the airâŚ
Alerts at this flight's airports
-
Advisory Airport Closure SNA
Airport Closure at John Wayne Orange County International Airport (SNA): Reopens Nov 08 at 14:15 UTC.
Airport status
Denver (DEN) to Santa Ana (SNA)
Historically, this flight arrives 15+ minutes late 10% of the time, and when it is late the delay averages 55 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 89.8%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 55 min
- Flights arriving 15+ minutes late
- Flights tracked
- 109
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 49%
- Late-arriving aircraft 35%
- Air traffic control & airport 17%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Charlotte (CLT) to Denver (DEN)
Historically, this flight arrives 15+ minutes late 15% of the time, and when it is late the delay averages 80 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 84.8%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 80 min
- Flights arriving 15+ minutes late
- Flights tracked
- 105
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 53%
- Air traffic control & airport 31%
- Airline (crew, maintenance, cleaning) 16%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Ontario (ONT) to Chicago (ORD)
Historically, this flight arrives 15+ minutes late 9% of the time, and when it is late the delay averages 55 minutes. It was cancelled 4.3% of the time.
- On-time arrivals
- 90.9%
- Less than 15 minutes late
- Cancelled
- 4.3%
- Of scheduled flights
- Average delay when late
- 55 min
- Flights arriving 15+ minutes late
- Flights tracked
- 47
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 96%
- Air traffic control & airport 4%
- Late-arriving aircraft 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Chicago (ORD) to Newark (EWR)
Historically, this flight arrives 15+ minutes late 76% of the time, and when it is late the delay averages 127 minutes. It was cancelled 17.1% of the time.
- On-time arrivals
- 23.5%
- Less than 15 minutes late
- Cancelled
- 17.1%
- Of scheduled flights
- Average delay when late
- 127 min
- Flights arriving 15+ minutes late
- Flights tracked
- 41
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 52%
- Air traffic control & airport 34%
- Airline (crew, maintenance, cleaning) 14%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Chicago (ORD) to Pensacola (PNS)
Historically, this flight arrives 15+ minutes late 47% of the time, and when it is late the delay averages 86 minutes. It was cancelled 3.2% of the time.
- On-time arrivals
- 53.3%
- Less than 15 minutes late
- Cancelled
- 3.2%
- Of scheduled flights
- Average delay when late
- 86 min
- Flights arriving 15+ minutes late
- Flights tracked
- 31
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 82%
- Airline (crew, maintenance, cleaning) 10%
- Air traffic control & airport 8%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Phoenix (PHX) to Chicago (ORD)
Historically, this flight arrives 15+ minutes late 26% of the time, and when it is late the delay averages 59 minutes. It was cancelled 4.2% of the time.
- On-time arrivals
- 73.9%
- Less than 15 minutes late
- Cancelled
- 4.2%
- Of scheduled flights
- Average delay when late
- 59 min
- Flights arriving 15+ minutes late
- Flights tracked
- 24
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 45%
- Airline (crew, maintenance, cleaning) 37%
- Air traffic control & airport 18%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Kansas City (MCI) to Denver (DEN)
Historically, this flight arrives 15+ minutes late 33% of the time, and when it is late the delay averages 153 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 66.7%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 153 min
- Flights arriving 15+ minutes late
- Flights tracked
- 21
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 58%
- Air traffic control & airport 21%
- Airline (crew, maintenance, cleaning) 14%
- Extreme weather 7%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Tampa (TPA) to Denver (DEN)
Only 19 flights on record, which is too few for reliable odds.
- On-time arrivals
- 78.9%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 113 min
- Flights arriving 15+ minutes late
- Flights tracked
- 19
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 92%
- Air traffic control & airport 5%
- Airline (crew, maintenance, cleaning) 3%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Chicago (ORD) to Albany (ALB)
Only 15 flights on record, which is too few for reliable odds.
- On-time arrivals
- 78.6%
- Less than 15 minutes late
- Cancelled
- 6.7%
- Of scheduled flights
- Average delay when late
- 52 min
- Flights arriving 15+ minutes late
- Flights tracked
- 15
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 95%
- Airline (crew, maintenance, cleaning) 4%
- Air traffic control & airport 1%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Newark (EWR) to San Francisco (SFO)
Only 14 flights on record, which is too few for reliable odds.
- On-time arrivals
- 64.3%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 90 min
- Flights arriving 15+ minutes late
- Flights tracked
- 14
- Scheduled flights in the period
What caused the delays
- Extreme weather 47%
- Air traffic control & airport 30%
- Late-arriving aircraft 17%
- Airline (crew, maintenance, cleaning) 6%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Madison (MSN) to San Francisco (SFO)
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
- â
- Flights arriving 15+ minutes late
- Flights tracked
- 1
- Scheduled flights in the period
San Francisco (SFO) to Minneapolis (MSP)
Only 1 flight on record, which is too few for reliable odds.
- On-time arrivals
- 0.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 32 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 78%
- Air traffic control & airport 19%
- Late-arriving aircraft 3%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
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Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 86.7% | 30 |
| October 2025 | 77.8% | 36 |
| November 2025 | 89.1% | 55 |
| December 2025 | 81.8% | 44 |
| January 2026 | 94.4% | 36 |
| February 2026 | 81.8% | 45 |
| March 2026 | 65.4% | 27 |
| April 2026 | 38.5% | 13 |
| May 2026 | 91.7% | 25 |
| June 2026 | 66.7% | 19 |
| July 2026 | 59.3% | 62 |
| August 2026 | 58.8% | 36 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 â August 2026. Covers flights operated by reporting U.S. carriers. About our data