Flight Reliability
DL 3722 · Delta Air Lines
Salt Lake City → MFR (SLC–MFR)
96
Nerd Approved
WanderNerd Reliability Score
- 94%
- Arrive within 15 minutes
- 3 min early
- Average arrival delay
- 0.3%
- Cancelled
- 10 min early
- Median arrival delay
Based on 364 historical flights. Data through May 2026.
What the data says
Thursday has been the better bet.
A small edge: 96% on time on Thursdays against 90% on Fridays.
Better than the Delta Air Lines network average.
DL 3722 arrived on time 94% of the time, versus 81% across the Delta Air Lines network.
It basically never cancels.
Out of 364 scheduled flights, only 0.3% were cancelled.
Slipping a little lately.
DL 3722 arrived on time 88% of the time over the last three months in the data, compared with 93% in the three months before that.
The breakdown
- Mon94%(52 flights)
- Tue94%(52 flights)
- Wed94%(50 flights)
- Thu96%(51 flights)
- Fri90%(51 flights)
- Sat94%(51 flights)
- Sun92%(52 flights)
74%
May
Jun 97% → May 74% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 97% | 30 |
| July 2025 | 94% | 31 |
| August 2025 | 97% | 31 |
| September 2025 | 100% | 30 |
| October 2025 | 94% | 31 |
| November 2025 | 100% | 28 |
| December 2025 | 100% | 28 |
| January 2026 | 90% | 30 |
| February 2026 | 89% | 28 |
| March 2026 | 90% | 31 |
| April 2026 | 100% | 30 |
| May 2026 | 74% | 31 |
- Departures on time
- 94%
- Diverted
- 1.1%
- Flights flown
- 359
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 364 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.