Flight Reliability
DL 2854 · Delta Air Lines
Seattle → Los Angeles (SEA–LAX)
87
Pretty Reliable
WanderNerd Reliability Score
- 83%
- Arrive within 15 minutes
- 3 min
- Average arrival delay
- 0.6%
- Cancelled
- 9 min early
- Median arrival delay
Based on 320 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
DL 2854 arrived on time 94% of the time on Tuesdays and just 78% on Sundays. That gap is worth planning around.
The breakdown
- Mon78%(50 flights)
- Tue94%(36 flights)
- Wed80%(49 flights)
- Thu82%(50 flights)
- Fri82%(50 flights)
- Sat91%(32 flights)
- Sun78%(50 flights)
67%
May
Jun 93% → May 67% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 93% | 30 |
| July 2025 | 87% | 31 |
| August 2025 | 87% | 31 |
| September 2025 | 83% | 30 |
| October 2025 | 79% | 29 |
| November 2025 | 90% | 29 |
| December 2025 | 64% | 28 |
| January 2026 | 85% | 26 |
| February 2026 | 82% | 17 |
| March 2026 | 85% | 20 |
| April 2026 | 86% | 22 |
| May 2026 | 67% | 24 |
- Departures on time
- 82%
- Diverted
- 0.3%
- Flights flown
- 317
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 320 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.