SFB to TYS flight delays & on-time performance
Nonstop flights from Orlando Sanford International Airport to McGhee Tyson Airport · 511 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SFB or TYS right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Sanford (SFB) to Knoxville (TYS) arrived on time 64% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.6% were cancelled, and 14% arrived an hour or more late.
- Allegiant Air is the only airline reporting nonstop flights on this route.
- Departures scheduled around 8am did best (87% on time); around 7pm did worst (46%).
- Wednesday was the most reliable day to fly (76% on time) and Sunday the least (51%).
- The largest source of delay minutes was late-arriving aircraft (43%).
Which airline is most on time from SFB 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 |
|---|---|---|---|---|---|
| Allegiant Air | 64% | 0.6% | 27 min | 13.9% | 639 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am87%56 flights
- 9am85%13 flights
- 10am85%55 flights
- 11am81%26 flights
- 12pm55%11 flights
- 1pm52%72 flights
- 2pm56%36 flights
- 3pm68%61 flights
- 4pm62%61 flights
- 5pm63%27 flights
- 6pm53%15 flights
- 7pm46%63 flights
- 8pm60%89 flights
- 9pm55%38 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday68%0.9% cancelled
- Tuesday73%0.0% cancelled
- Wednesday76%0.0% cancelled
- Thursday69%0.0% cancelled
- Friday59%0.0% cancelled
- Saturday65%2.0% cancelled
- Sunday51%0.9% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft43%
- Extreme weather26%
- Airline (crew, maintenance, cleaning, fueling)18%
- Air traffic control & airport congestion13%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
SFB to TYS: common questions
- How often are SFB to TYS flights on time?
- 64% 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 Sanford to Knoxville cancelled?
- 0.6% of scheduled flights were cancelled (4 of 639).
- How long are typical delays?
- Across all flights the average arrival delay was 27 min (early arrivals count as zero). Flights that were late arrived 73 min behind schedule on average, and 13.9% of flights were an hour or more late.
- How long is taxi time at SFB?
- Flights on this route spent 17 min taxiing from the gate to takeoff on average.
Related routes
Return trip: TYS to SFB — 69% on time
More flights from Sanford
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: SFB → TYS, nonstop flights by US airlines that report to the DOT. How we calculate this.