Flight Reliability
UA 4996 · United Airlines
SGF → Houston (SGF–IAH)99% of its flights flew this route. The rest (BTR–IAH) are included in these numbers.
81
Pretty Reliable
WanderNerd Reliability Score
- 82%
- Arrive within 15 minutes
- 6 min
- Average arrival delay
- 2.4%
- Cancelled
- 13 min early
- Median arrival delay
Based on 126 historical flights. Data through May 2026.
What the data says
The 3–6 PM departure wins.
UA 4996 departing between 3–6 PM arrived on time 86% of the time, versus 77% between 12–3 PM.
Mondays have been rough.
UA 4996 arrived on time 90% of the time on Thursdays and just 69% on Mondays. That gap is worth planning around.
A bit ahead of the United Airlines network.
UA 4996 arrived on time 82% of the time, versus 79% across the United Airlines network.
The breakdown
- Mon69%(16 flights)
- Tue89%(18 flights)
- Wed78%(18 flights)
- Thu90%(19 flights)
- Fri89%(18 flights)
- Sat77%(17 flights)
- Sun82%(17 flights)
- 12–3 PM77%(51 flights)
- 3–6 PM86%(72 flights)
82%
May
Jan 96% → May 82% on time
| Month | On-time percentage | Flights |
|---|---|---|
| January 2026 | 96% | 23 |
| February 2026 | 86% | 28 |
| March 2026 | 81% | 31 |
| April 2026 | 70% | 30 |
| May 2026 | 82% | 11 |
- Departures on time
- 81%
- Diverted
- 0%
- Flights flown
- 123
- Months covered
- 5
Same route, other flights
Keep nerding
Based on 126 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.