Flight Reliability
DL 4107 · Delta Air Lines
SBN → Atlanta (SBN–ATL)
84
Pretty Reliable
WanderNerd Reliability Score
- 84%
- Arrive within 15 minutes
- 10 min
- Average arrival delay
- 1.6%
- Cancelled
- 10 min early
- Median arrival delay
Based on 365 historical flights. Data through May 2026.
What the data says
Tuesdays have been rough.
DL 4107 arrived on time 94% of the time on Wednesdays and just 73% on Tuesdays. That gap is worth planning around.
A bit ahead of the SBN–ATL route.
DL 4107 arrived on time 84% of the time, versus 77% across the SBN–ATL route.
Trending in the right direction.
DL 4107 arrived on time 86% of the time over the last three months in the data, compared with 71% in the three months before that.
The breakdown
- Mon80%(50 flights)
- Tue73%(51 flights)
- Wed94%(52 flights)
- Thu92%(51 flights)
- Fri85%(52 flights)
- Sat88%(51 flights)
- Sun76%(50 flights)
84%
May
Jun 90% → May 84% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 90% | 30 |
| July 2025 | 90% | 31 |
| August 2025 | 84% | 31 |
| September 2025 | 93% | 30 |
| October 2025 | 100% | 31 |
| November 2025 | 77% | 30 |
| December 2025 | 72% | 29 |
| January 2026 | 68% | 28 |
| February 2026 | 74% | 27 |
| March 2026 | 77% | 30 |
| April 2026 | 97% | 29 |
| May 2026 | 84% | 31 |
- Departures on time
- 86%
- Diverted
- 0.5%
- Flights flown
- 357
- 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.