Flight Reliability
UA 4947 · United Airlines
BTR → Houston (BTR–IAH)
93
Nerd Approved
WanderNerd Reliability Score
- 90%
- Arrive within 15 minutes
- 7 min early
- Average arrival delay
- 0.6%
- Cancelled
- 14 min early
- Median arrival delay
Based on 177 historical flights. Data through May 2026.
What the data says
Friday is doing you no favors.
UA 4947 arrived on time 100% of the time on Tuesdays. On Fridays: 86%.
A bit ahead of the BTR–IAH route.
UA 4947 arrived on time 90% of the time, versus 83% across the BTR–IAH route.
Better than the United Airlines network average.
UA 4947 arrived on time 90% of the time, versus 79% across the United Airlines network.
Recent months have been rougher.
UA 4947 arrived on time 85% of the time over the last three months in the data, compared with 94% in the three months before that.
The breakdown
- Mon88%(16 flights)
- Tue100%(27 flights)
- Wed92%(24 flights)
- Thu89%(27 flights)
- Fri86%(28 flights)
- Sat88%(25 flights)
- Sun89%(28 flights)
64%
May
Jun 76% → May 64% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 76% | 21 |
| July 2025 | 96% | 27 |
| August 2025 | 96% | 26 |
| September 2025 | 90% | 30 |
| October 2025 | 100% | 25 |
| December 2025 | 90% | 30 |
| May 2026 | 64% | 11 |
- Departures on time
- 93%
- Diverted
- 0.6%
- Flights flown
- 175
- Months covered
- 8
Same route, other flights
Keep nerding
Based on 177 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.