Flight Reliability
DL 1287 · Delta Air Lines
Los Angeles → Houston (LAX–IAH)
87
Pretty Reliable
WanderNerd Reliability Score
- 86%
- Arrive within 15 minutes
- 4 min
- Average arrival delay
- 1.8%
- Cancelled
- 8 min early
- Median arrival delay
Based on 281 historical flights. Data through May 2026.
What the data says
Friday is doing you no favors.
DL 1287 arrived on time 94% of the time on Thursdays and just 75% on Fridays. That gap is worth planning around.
A bit ahead of the Delta Air Lines network.
DL 1287 arrived on time 86% of the time, versus 81% across the Delta Air Lines network.
Trending in the right direction.
DL 1287 arrived on time 89% of the time over the last three months in the data, compared with 79% in the three months before that.
The breakdown
- Mon92%(50 flights)
- Tue86%(44 flights)
- Wed93%(42 flights)
- Thu94%(46 flights)
- Fri75%(47 flights)
- Sat—(4 flights)
- Sun81%(43 flights)
84%
May
Jun 83% → May 84% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 83% | 24 |
| July 2025 | 83% | 23 |
| August 2025 | 91% | 22 |
| September 2025 | 95% | 21 |
| October 2025 | 91% | 23 |
| November 2025 | 83% | 18 |
| December 2025 | 80% | 25 |
| January 2026 | 60% | 20 |
| February 2026 | 96% | 22 |
| March 2026 | 82% | 27 |
| April 2026 | 100% | 26 |
| May 2026 | 84% | 25 |
- Departures on time
- 84%
- Diverted
- 0%
- Flights flown
- 276
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 281 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.