Flight Reliability
UA 4473 · United Airlines
Washington → Richmond (IAD–RIC)
58
A Little Dicey
WanderNerd Reliability Score
- 71%
- Arrive within 15 minutes
- 29 min
- Average arrival delay
- 2.8%
- Cancelled
- 2 min early
- Median arrival delay
Based on 363 historical flights. Data through May 2026.
What the data says
Friday is doing you no favors.
UA 4473 arrived on time 78% of the time on Saturdays and just 63% on Fridays. That gap is worth planning around.
A bit behind the IAD–RIC route.
UA 4473 arrived on time 71% of the time, versus 77% across the IAD–RIC route.
Lagging the United Airlines network.
UA 4473 arrived on time 71% of the time, versus 79% across the United Airlines network.
Trending in the right direction.
UA 4473 arrived on time 80% of the time over the last three months in the data, compared with 64% in the three months before that.
The breakdown
- Mon69%(51 flights)
- Tue73%(51 flights)
- Wed67%(52 flights)
- Thu75%(48 flights)
- Fri63%(49 flights)
- Sat78%(51 flights)
- Sun73%(51 flights)
84%
May
Jun 68% → May 84% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 68% | 28 |
| July 2025 | 46% | 28 |
| August 2025 | 61% | 31 |
| September 2025 | 87% | 30 |
| October 2025 | 87% | 31 |
| November 2025 | 72% | 29 |
| December 2025 | 48% | 31 |
| January 2026 | 62% | 29 |
| February 2026 | 82% | 27 |
| March 2026 | 68% | 28 |
| April 2026 | 87% | 30 |
| May 2026 | 84% | 31 |
- Departures on time
- 72%
- Diverted
- 0%
- Flights flown
- 353
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 363 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.