Flight Reliability
UA 4978 · United Airlines
LBB → Houston (LBB–IAH)
57
A Little Dicey
WanderNerd Reliability Score
- 75%
- Arrive within 15 minutes
- 8 min
- Average arrival delay
- 6.3%
- Cancelled
- 1 min early
- Median arrival delay
Based on 63 historical flights. Data through May 2026.
What the data says
Friday is doing you no favors.
UA 4978 arrived on time 91% of the time on Thursdays and just 50% on Fridays. That gap is worth planning around.
Lagging the LBB–IAH route.
UA 4978 arrived on time 75% of the time, versus 82% across the LBB–IAH route.
A bit behind the United Airlines network.
UA 4978 arrived on time 75% of the time, versus 79% across the United Airlines network.
The breakdown
- Mon82%(11 flights)
- Tue—(2 flights)
- Wed82%(11 flights)
- Thu91%(11 flights)
- Fri50%(10 flights)
- Sat—(2 flights)
- Sun67%(12 flights)
71%
May
Nov 77% → May 71% on time
| Month | On-time percentage | Flights |
|---|---|---|
| November 2025 | 77% | 17 |
| December 2025 | 83% | 12 |
| May 2026 | 71% | 24 |
- Departures on time
- 83%
- Diverted
- 0%
- Flights flown
- 59
- Months covered
- 5
Same route, other flights
Keep nerding
Based on 63 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.