Flight Reliability
DL 1615 · Delta Air Lines
Spokane → Minneapolis (GEG–MSP)
97
Nerd Approved
WanderNerd Reliability Score
- 93%
- Arrive within 15 minutes
- 5 min early
- Average arrival delay
- 0.8%
- Cancelled
- 15 min early
- Median arrival delay
Based on 365 historical flights. Data through May 2026.
What the data says
Friday is doing you no favors.
DL 1615 arrived on time 96% of the time on Wednesdays. On Fridays: 89%.
Better than the Delta Air Lines network average.
DL 1615 arrived on time 93% of the time, versus 81% across the Delta Air Lines network.
The breakdown
- Mon92%(51 flights)
- Tue92%(52 flights)
- Wed96%(51 flights)
- Thu94%(52 flights)
- Fri89%(52 flights)
- Sat90%(52 flights)
- Sun94%(52 flights)
- 3–6 AM91%(34 flights)
- 6–9 AM93%(328 flights)
100%
May
Jun 97% → May 100% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 97% | 30 |
| July 2025 | 90% | 31 |
| August 2025 | 97% | 31 |
| September 2025 | 97% | 30 |
| October 2025 | 97% | 31 |
| November 2025 | 76% | 29 |
| December 2025 | 90% | 31 |
| January 2026 | 97% | 31 |
| February 2026 | 89% | 28 |
| March 2026 | 93% | 30 |
| April 2026 | 87% | 30 |
| May 2026 | 100% | 30 |
- Departures on time
- 94%
- Diverted
- 0%
- Flights flown
- 362
- 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.