Flight Reliability
DL 936 · Delta Air Lines
Seattle → Anchorage (SEA–ANC)
76
Usually Fine
WanderNerd Reliability Score
- 73%
- Arrive within 15 minutes
- 13 min
- Average arrival delay
- 0.9%
- Cancelled
- 0 min
- Median arrival delay
Based on 319 historical flights. Data through May 2026.
What the data says
The late departure is the smart one here.
DL 936 departing between 9 PM–12 AM arrived on time 77% of the time, versus 62% between 3–6 PM.
Friday is doing you no favors.
DL 936 arrived on time 78% of the time on Thursdays. On Fridays: 67%.
Lagging the Delta Air Lines network.
DL 936 arrived on time 73% of the time, versus 81% across the Delta Air Lines network.
Recent months have been rougher.
DL 936 arrived on time 59% of the time over the last three months in the data, compared with 71% in the three months before that.
The breakdown
- Mon73%(52 flights)
- Tue75%(40 flights)
- Wed76%(38 flights)
- Thu78%(49 flights)
- Fri67%(48 flights)
- Sat70%(37 flights)
- Sun73%(52 flights)
- 3–6 PM62%(68 flights)
- 6–9 PM74%(66 flights)
- 9 PM–12 AM77%(182 flights)
68%
May
Jun 80% → May 68% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 80% | 20 |
| July 2025 | 75% | 16 |
| August 2025 | 82% | 27 |
| September 2025 | 90% | 30 |
| October 2025 | 77% | 31 |
| November 2025 | 86% | 28 |
| December 2025 | 50% | 28 |
| January 2026 | 79% | 29 |
| February 2026 | 84% | 19 |
| March 2026 | 41% | 27 |
| April 2026 | 70% | 30 |
| May 2026 | 68% | 31 |
- Departures on time
- 80%
- Diverted
- 0%
- Flights flown
- 316
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 319 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.