Flight Reliability
DL 4289 · Delta Air Lines
Minneapolis → XWA (MSP–XWA)
67
Usually Fine
WanderNerd Reliability Score
- 81%
- Arrive within 15 minutes
- 30 min
- Average arrival delay
- 1.4%
- Cancelled
- 9 min early
- Median arrival delay
Based on 363 historical flights. Data through May 2026.
What the data says
Thursday is the weak spot.
DL 4289 arrived on time 88% of the time on Tuesdays. On Thursdays: 74%.
A bit ahead of the MSP–XWA route.
DL 4289 arrived on time 81% of the time, versus 78% across the MSP–XWA route.
Trending in the right direction.
DL 4289 arrived on time 82% of the time over the last three months in the data, compared with 68% in the three months before that.
The breakdown
- Mon80%(51 flights)
- Tue88%(51 flights)
- Wed80%(50 flights)
- Thu74%(49 flights)
- Fri77%(51 flights)
- Sat86%(49 flights)
- Sun81%(52 flights)
- 3–6 PM—(6 flights)
- 6–9 PM81%(347 flights)
81%
May
Jun 90% → May 81% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 90% | 30 |
| July 2025 | 70% | 30 |
| August 2025 | 90% | 30 |
| September 2025 | 93% | 30 |
| October 2025 | 94% | 31 |
| November 2025 | 79% | 29 |
| December 2025 | 48% | 29 |
| January 2026 | 86% | 28 |
| February 2026 | 70% | 27 |
| March 2026 | 72% | 29 |
| April 2026 | 93% | 29 |
| May 2026 | 81% | 31 |
- Departures on time
- 82%
- Diverted
- 1.4%
- Flights flown
- 353
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 363 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.