Flight Reliability
DL 2606 · Delta Air Lines
Los Angeles → Seattle (LAX–SEA)
90
Nerd Approved
WanderNerd Reliability Score
- 86%
- Arrive within 15 minutes
- 1 min early
- Average arrival delay
- 0.8%
- Cancelled
- 13 min early
- Median arrival delay
Based on 365 historical flights. Data through May 2026.
What the data says
12–3 PM has a slight edge.
Departures between 12–3 PM arrived on time 87% of the time, against 83% between 3–6 PM.
Sunday scaries are real for this one.
DL 2606 arrived on time 94% of the time on Tuesdays and just 71% on Sundays. That gap is worth planning around.
A bit ahead of the Delta Air Lines network.
DL 2606 arrived on time 86% of the time, versus 81% across the Delta Air Lines network.
The breakdown
- Mon75%(51 flights)
- Tue94%(52 flights)
- Wed92%(51 flights)
- Thu90%(52 flights)
- Fri85%(52 flights)
- Sat94%(51 flights)
- Sun71%(52 flights)
- 9 AM–12 PM83%(24 flights)
- 12–3 PM87%(253 flights)
- 3–6 PM83%(84 flights)
87%
May
Jun 93% → May 87% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 93% | 30 |
| July 2025 | 94% | 31 |
| August 2025 | 90% | 30 |
| September 2025 | 87% | 30 |
| October 2025 | 97% | 31 |
| November 2025 | 83% | 30 |
| December 2025 | 75% | 28 |
| January 2026 | 77% | 31 |
| February 2026 | 89% | 28 |
| March 2026 | 77% | 31 |
| April 2026 | 80% | 30 |
| May 2026 | 87% | 31 |
- Departures on time
- 81%
- Diverted
- 0.3%
- Flights flown
- 361
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 365 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.