Route on-time record
TYS to ATL: most on-time flights and the best time to fly
Knoxville/Maryville (McGhee Tyson Airport) to Atlanta (Hartsfield Jackson Atlanta International Airport). 1,723 nonstop flights in Jun 2025 to May 2026, 86% arrived within 15 minutes and 2.3% were cancelled. The most reliable flight number was Delta 1290 at 10:25 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
TYS → ATL
Knoxville/Maryville to Atlanta: 1,723 nonstop flights a year
On time (12 months)
86%
Cancelled
2.3%
avg delay 12 min
Best time to leave
Before 9 AM
92% on time vs 80% 6 to 9 PM
Most reliable airline
Delta
84% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · Delta 1290
10:25 AM → 11:29 AM1h 04m nonstop
Local times, typical schedule. Last flown 2026-05-31.
90%
chance on time
- On time (history)
- 97%
- Cancelled
- 0.0%
- Avg arrival delay
- 1 min
- Arrived on time 97% of the time (31 flights, Jun 2025 to May 2026).
- Never cancelled in 31 scheduled flights.
- Short track record (31 flights), so its score leans on the airline's record at this hour.
Limited track record · 31 flights
Find Delta 1290 fares Opens this date on Aviasales#2 · Delta 3015
5:40 AM → 6:41 AM1h 01m nonstop
Local times, typical schedule. Last flown 2026-05-31.
89%
chance on time
- On time (history)
- 92%
- Cancelled
- 2.6%
- Avg arrival delay
- 11 min
- Arrived on time 92% of the time (334 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 92% on time; 6 to 9 PM: 80%).
Strong track record · 334 flights
Find Delta 3015 fares Opens this date on Aviasales#3 · Delta 1743
12:03 PM → 1:05 PM1h 02m nonstop
Local times, typical schedule. Last flown 2026-05-31.
87%
chance on time
- On time (history)
- 89%
- Cancelled
- 1.4%
- Avg arrival delay
- 6 min
- Arrived on time 89% of the time (282 flights, Jun 2025 to May 2026).
- Lands inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.
Strong track record · 282 flights
Find Delta 1743 fares Opens this date on Aviasales#4 · Delta 724
1:59 PM → 3:04 PM1h 05m nonstop
Local times, typical schedule. Last flown 2026-05-29.
87%
chance on time
- On time (history)
- 94%
- Cancelled
- 5.6%
- Avg arrival delay
- 2 min
- Arrived on time 94% of the time (17 flights, Jun 2025 to May 2026).
- Lands inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.
- Short track record (17 flights), so its score leans on the airline's record at this hour.
Limited track record · 17 flights
Find Delta 724 fares Opens this date on Aviasales#5 · Delta 2496
3:30 PM → 4:32 PM1h 02m nonstop
Local times, typical schedule. Last flown 2026-05-31.
84%
chance on time
- On time (history)
- 84%
- Cancelled
- 0.0%
- Avg arrival delay
- 11 min
- Arrived on time 84% of the time (25 flights, Jun 2025 to May 2026).
- Lands inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.
- Short track record (25 flights), so its score leans on the airline's record at this hour.
Limited track record · 25 flights
Find Delta 2496 fares Opens this date on Aviasales#6 · Delta 1148
5:10 PM → 6:12 PM1h 02m nonstop
Local times, typical schedule. Last flown 2026-05-06.
81%
chance on time
- On time (history)
- 86%
- Cancelled
- 3.2%
- Avg arrival delay
- 6 min
- Arrived on time 86% of the time (122 flights, Jun 2025 to May 2026).
- Cancelled 3.2% of the time (4 of 126).
- Lands inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.
Moderate track record · 122 flights
Find Delta 1148 fares Opens this date on Aviasales#7 · Delta 3042
6:38 PM → 7:58 PM1h 13m nonstop
Local times, typical schedule. Last flown 2026-05-31.
79%
chance on time
- On time (history)
- 81%
- Cancelled
- 5.4%
- Avg arrival delay
- 21 min
- Arrived on time 81% of the time (141 flights, Jun 2025 to May 2026).
- Cancelled 5.4% of the time (8 of 149).
- Leaves in this route's least on-time window (6 to 9 PM: 80% on time; Before 9 AM: 92%).
Moderate track record · 141 flights
Find Delta 3042 fares Opens this date on Aviasales#8 · Delta 2571
5:59 PM → 7:08 PM1h 09m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Delta 1729; its record covers all of them.
73%
chance on time
- On time (history)
- 75%
- Cancelled
- 2.4%
- Avg arrival delay
- 23 min
- Arrived on time 75% of the time (40 flights, Jun 2025 to May 2026).
- 50% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (40 flights), so its score leans on the airline's record at this hour.
Limited track record · 40 flights
Find Delta 2571 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Delta Air Lines84%
1,722 flights · 86% on time as flown · 2.3% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM92%
350 flights · avg delay 11 min
- 9 AM to noon90%
212 flights · avg delay 4 min
- Noon to 3 PM87%
432 flights · avg delay 9 min
- 3 to 6 PM81%
465 flights · avg delay 17 min
- 6 to 9 PM80%
264 flights · avg delay 17 min
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Late-arriving aircraft51%
- Airline (crew, maintenance, boarding)26%
- Air traffic control and airport volume17%
- Severe weather6%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
TYS to ATL questions
- What time of day is best to fly TYS to ATL?
- Before 9 AM: 92% of flights arrived on time, against 80% for departures 6 to 9 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from TYS to ATL?
- Delta, with a season-adjusted 84% chance of operating and arriving on time over 1,722 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on TYS to ATL?
- July (81% on time); the best was October (95%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from TYS
- ATL to TYS (return)
- TYS to ORD 68%
- TYS to DFW 77%
- TYS to DCA 70%
- TYS to DEN 84%
- TYS to CLT 79%
- TYS to SFB 69%
- TYS to PIE 75%
- TYS to FLL 55%
- TYS to MIA 80%
- TYS to PHL 84%
Live status: FAA delays and ground stops