Flight Reliability
UA 4342 · United Airlines
CHO → Washington (CHO–IAD)99% of its flights flew this route. The rest (IAH–ELP, PVD–IAD) are included in these numbers.
93
Nerd Approved
WanderNerd Reliability Score
- 88%
- Arrive within 15 minutes
- 9 min
- Average arrival delay
- 0.9%
- Cancelled
- 13 min early
- Median arrival delay
Based on 327 historical flights. Data through May 2026.
What the data says
Saturday comes out ahead.
A small edge: 92% on time on Saturdays against 85% on Tuesdays.
A bit ahead of the CHO–IAD route.
UA 4342 arrived on time 88% of the time, versus 85% across the CHO–IAD route.
Better than the United Airlines network average.
UA 4342 arrived on time 88% of the time, versus 79% across the United Airlines network.
The breakdown
- Mon85%(47 flights)
- Tue85%(46 flights)
- Wed91%(46 flights)
- Thu87%(45 flights)
- Fri89%(47 flights)
- Sat92%(47 flights)
- Sun89%(46 flights)
- 6–9 AM88%(322 flights)
- 9 AM–12 PM—(2 flights)
73%
May
Jun 82% → May 73% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 82% | 28 |
| July 2025 | 90% | 31 |
| August 2025 | 87% | 31 |
| September 2025 | 100% | 30 |
| October 2025 | 94% | 31 |
| November 2025 | 97% | 30 |
| December 2025 | 70% | 30 |
| February 2026 | 89% | 18 |
| March 2026 | 90% | 31 |
| April 2026 | 97% | 30 |
| May 2026 | 73% | 30 |
- Departures on time
- 90%
- Diverted
- 0%
- Flights flown
- 324
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 327 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.