Flight Reliability
DL 4835 · Delta Air Lines
Knoxville → Atlanta (TYS–ATL)89% of its flights flew this route. The rest (ORF–JFK, ATL–TYS) are included in these numbers.
87
Pretty Reliable
WanderNerd Reliability Score
- 80%
- Arrive within 15 minutes
- 13 min
- Average arrival delay
- 0%
- Cancelled
- 7 min early
- Median arrival delay
Based on 96 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
DL 4835 arrived on time 92% of the time on Mondays and just 69% on Sundays. That gap is worth planning around.
A bit behind the TYS–ATL route.
DL 4835 arrived on time 80% of the time, versus 85% across the TYS–ATL route.
The breakdown
- Mon92%(13 flights)
- Tue77%(17 flights)
- Wed77%(13 flights)
- Thu86%(14 flights)
- Fri80%(15 flights)
- Sat—(8 flights)
- Sun69%(16 flights)
- 6–9 AM—(2 flights)
- 9 AM–12 PM81%(93 flights)
- 6–9 PM—(1 flights)
86%
Sep
Jun 63% → Sep 86% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 63% | 19 |
| July 2025 | 74% | 23 |
| August 2025 | 91% | 23 |
| September 2025 | 86% | 21 |
- Departures on time
- 80%
- Diverted
- 0%
- Flights flown
- 96
- Months covered
- 6
Same route, other flights
Keep nerding
Based on 96 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.