Flight Reliability
DL 3649 · Delta Air Lines
Austin → Memphis (AUS–MEM)89% of its flights flew this route. The rest (MDT–DTW, DTW–MSN) are included in these numbers.
82
Pretty Reliable
WanderNerd Reliability Score
- 79%
- Arrive within 15 minutes
- 12 min
- Average arrival delay
- 0.9%
- Cancelled
- 9 min early
- Median arrival delay
Based on 218 historical flights. Data through May 2026.
What the data says
Morning-you made the right choice.
DL 3649 departing between 6–9 AM arrived on time 86% of the time, versus 71% between 12–3 PM.
Skip Tuesday if you can.
DL 3649 arrived on time 81% of the time on Mondays. On Tuesdays: 73%.
Recent months have been rougher.
DL 3649 arrived on time 69% of the time over the last three months in the data, compared with 83% in the three months before that.
The breakdown
- Mon81%(32 flights)
- Tue73%(30 flights)
- Wed80%(30 flights)
- Thu78%(32 flights)
- Fri81%(31 flights)
- Sat79%(29 flights)
- Sun78%(32 flights)
- 6–9 AM86%(14 flights)
- 12–3 PM71%(41 flights)
- 3–6 PM—(1 flights)
- 6–9 PM81%(160 flights)
46%
Jan
Jun 65% → Jan 46% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 65% | 23 |
| July 2025 | 84% | 31 |
| August 2025 | 71% | 31 |
| September 2025 | 90% | 30 |
| October 2025 | 87% | 31 |
| November 2025 | 80% | 30 |
| December 2025 | 83% | 29 |
| January 2026 | 46% | 11 |
- Departures on time
- 80%
- Diverted
- 0%
- Flights flown
- 216
- Months covered
- 8
Same route, other flights
Keep nerding
Based on 218 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.