Flight Reliability
DL 4143 · Delta Air Lines
Minneapolis → MOT (MSP–MOT)95% of its flights flew this route. The rest (BUF–DTW, DTW–BUF) are included in these numbers.
76
Usually Fine
WanderNerd Reliability Score
- 79%
- Arrive within 15 minutes
- 11 min
- Average arrival delay
- 1.3%
- Cancelled
- 4 min early
- Median arrival delay
Based on 153 historical flights. Data through May 2026.
What the data says
Mondays have been rough.
DL 4143 arrived on time 92% of the time on Tuesdays and just 61% on Mondays. That gap is worth planning around.
The breakdown
- Mon61%(23 flights)
- Tue92%(24 flights)
- Wed71%(24 flights)
- Thu83%(23 flights)
- Fri83%(23 flights)
- Sat92%(12 flights)
- Sun75%(20 flights)
- 9 AM–12 PM—(4 flights)
- 12–3 PM—(4 flights)
- 6–9 PM77%(141 flights)
92%
May
Dec 80% → May 92% on time
| Month | On-time percentage | Flights |
|---|---|---|
| December 2025 | 80% | 10 |
| January 2026 | 73% | 26 |
| February 2026 | 82% | 22 |
| March 2026 | 69% | 26 |
| April 2026 | 77% | 26 |
| May 2026 | 92% | 24 |
- Departures on time
- 75%
- Diverted
- 1.3%
- Flights flown
- 149
- Months covered
- 9
Same route, other flights
Keep nerding
Based on 153 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.