Flight Reliability
UA 2102 · United Airlines
Las Vegas → Chicago (LAS–ORD)
98
Nerd Approved
WanderNerd Reliability Score
- 92%
- Arrive within 15 minutes
- 9 min early
- Average arrival delay
- 0.3%
- Cancelled
- 14 min early
- Median arrival delay
Based on 345 historical flights. Data through May 2026.
What the data says
Monday is the weak spot.
UA 2102 arrived on time 96% of the time on Tuesdays. On Mondays: 88%.
Better than the LAS–ORD route average.
UA 2102 arrived on time 92% of the time, versus 77% across the LAS–ORD route.
Better than the United Airlines network average.
UA 2102 arrived on time 92% of the time, versus 79% across the United Airlines network.
It basically never cancels.
Out of 345 scheduled flights, only 0.3% were cancelled.
The breakdown
- Mon88%(49 flights)
- Tue96%(46 flights)
- Wed94%(47 flights)
- Thu90%(52 flights)
- Fri94%(52 flights)
- Sat91%(46 flights)
- Sun89%(52 flights)
94%
May
Jun 93% → May 94% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 93% | 30 |
| July 2025 | 71% | 31 |
| August 2025 | 90% | 30 |
| September 2025 | 96% | 28 |
| October 2025 | 90% | 20 |
| November 2025 | 93% | 30 |
| December 2025 | 93% | 30 |
| January 2026 | 93% | 30 |
| February 2026 | 100% | 25 |
| March 2026 | 90% | 29 |
| April 2026 | 97% | 30 |
| May 2026 | 94% | 31 |
- Departures on time
- 88%
- Diverted
- 0%
- Flights flown
- 344
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 345 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.