ATL to TYS flight delays & on-time performance
Nonstop flights from Hartsfield Jackson Atlanta International Airport to McGhee Tyson Airport · 152 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at ATL or TYS right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Atlanta (ATL) to Knoxville (TYS) arrived on time 83% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1.7% were cancelled, and 5% arrived an hour or more late.
- Delta Air Lines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 10am did best (91% on time); around 5pm did worst (73%).
- Tuesday was the most reliable day to fly (87% on time) and Sunday the least (76%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (54%).
Which airline is most on time from ATL to TYS?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Delta Air Lines | 83% | 1.7% | 11 min | 4.6% | 1,717 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am87%134 flights
- 9am90%70 flights
- 10am91%215 flights
- 12pm89%155 flights
- 1pm86%191 flights
- 2pm82%155 flights
- 3pm78%92 flights
- 4pm74%199 flights
- 5pm73%131 flights
- 6pm89%39 flights
- 10pm82%251 flights
- 11pm78%81 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday86%1.8% cancelled
- Tuesday87%0.4% cancelled
- Wednesday86%0.0% cancelled
- Thursday84%0.7% cancelled
- Friday80%1.4% cancelled
- Saturday81%5.2% cancelled
- Sunday76%3.7% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)54%
- Late-arriving aircraft25%
- Air traffic control & airport congestion12%
- Extreme weather9%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)70%
- Extreme weather30%
- Air traffic control & airport congestion0%
- Security0%
ATL to TYS: common questions
- How often are ATL to TYS flights on time?
- 83% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Atlanta to Knoxville cancelled?
- 1.7% of scheduled flights were cancelled (30 of 1,717).
- How long are typical delays?
- Across all flights the average arrival delay was 11 min (early arrivals count as zero). Flights that were late arrived 58 min behind schedule on average, and 4.6% of flights were an hour or more late.
- How long is taxi time at ATL?
- Flights on this route spent 15 min taxiing from the gate to takeoff on average.
Related routes
Return trip: TYS to ATL — 88% on time
More flights from Atlanta
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: ATL → TYS, nonstop flights by US airlines that report to the DOT. How we calculate this.