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Route · TYS → SFB · 2020–2025 BTS data

Knoxville to Sanford

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), TYS to SFB (Knoxville to Sanford) ranks #3418 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

75.3%
On-time
-3.7 pts
vs US avg
82 min
Delay when late
2,743
Flights
#3418 of 4927
Corpus placement

Cancelled

1.2%

Best Month

Mar 2025 82%

Worst Month

Jun 2025 44%

Distance

511 mi

Carriers

1

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 67 17 0 0 G4
Nov 2025 60 15 0 0 G4
Oct 2025 57 18 0 0 G4
Sep 2025 47 5 0 0 G4
Aug 2025 52 18 0 0 G4
Jul 2025 53 27 0 0 G4
Jun 2025 52 29 0 1 G4
May 2025 51 18 0 0 G4
Apr 2025 49 8 0 0 G4
Mar 2025 62 11 1 0 G4
Feb 2025 47 13 0 0 G4
Jan 2025 53 12 0 1 G4
Dec 2024 67 16 0 0 G4
Nov 2024 50 11 0 0 G4
Oct 2024 55 10 5 0 G4
Sep 2024 48 14 0 0 G4
Aug 2024 47 10 2 0 G4
Jul 2024 63 25 3 0 G4
Jun 2024 58 13 0 0 G4
May 2024 49 16 0 0 G4
Apr 2024 44 5 1 0 G4
Mar 2024 52 12 1 0 G4
Feb 2024 46 6 0 0 G4
Jan 2024 51 10 2 0 G4

TYS–SFB seasonal on-time pattern

Best: January (80.3%) · weakest: July (63.3%)

60%65%70%75%80%85% JanFebMarAprMayJunJulAugSepOctNovDec 77.4%

Strongest calendar month

January

80.3% on-time · ~43 flights/mo

Busiest calendar month

December

~57 flights/mo avg

Weakest calendar month

July

63.3% on-time · ~51 flights/mo

Cancellation Rate

1.2%

15 of 1,280 flights

Diversion Rate

0.2%

2 of 1,280 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

TYS - Knoxville

Full on-time, delay-cause, and seasonal performance for Knoxville, TN.

TYS on-time profile

SFB - Sanford

Full on-time, delay-cause, and seasonal performance for Sanford, FL.

SFB on-time profile

Compare the two airports

See TYS and SFB side by side on delays, cancellations, and reliability.

Compare TYS vs SFB

Origin-hub reliability standing

Mid-pack among TYS departures

From TYS, this corridor sits with 6 other 75–85% on-time routes out of 14 tracked departures, not the hub's reliability leaders (6 at ≥85%) and not the softest ( 2 below 75%). Destination: Sanford · fleet on-time rank #4432 of 4927.

What the Data Says About TYS to SFB

The Knoxville to Sanford corridor (TYS to SFB) posts a 75.3% on-time rate on the lower edge of the average band, based on 2,743 tracked flights. Late flights run 82.2 minutes behind on average. 1 carrier cover the 511-mile route; over the last 24 months, 15 of 1,280 flights were cancelled (1.2%) and 0.2% diverted.

The monthly split is wide on this route: Mar 2025 posted the strongest performance at 82% on-time, while Jun 2025 came in at just 44% - a 38-point swing worth factoring into travel timing.

On the multi-year calendar, TYS–SFB peaks in January at 80.3% on-time while December carries the heaviest traffic (~57 flights per month) ; the softest month is July at 63.3%, a 17.0-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does TYS to SFB rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, TYS to SFB ranks #3418 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from TYS to SFB? ▼
Flights from Knoxville to Sanford have a 75.3% on-time rate based on 2,743 flights. The average delay is 82.2 minutes. The best recent month was Mar 2025 with 82% on-time.
What is the cancellation rate for TYS to SFB? ▼
Over the last 24 months, 1.2% of flights on this route were cancelled (15 of 1,280 flights) and 0.2% were diverted.
How far is the flight from TYS to SFB? ▼
The flight distance from Knoxville (TYS) to Sanford (SFB) is approximately 511 miles. This route is served by 1 carrier.
When is the best time to fly from TYS to SFB? ▼
The best recent month for on-time performance was Mar 2025 (82% on-time). The worst was Jun 2025 (44% on-time). Consider booking during months with historically better performance.

Airports on this route

TYS Airport

Knoxville
SFB Airport

Sanford
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using TYS–SFB data

TYS–SFB is mid-pack at 75.3% on-time; month and carrier mix move more than the corridor headline.

  • Compare TYS and SFB airport profiles: delay causes and top routes differ even on the same corridor. TYS airport
  • If your dates flex, January (80.3% on-time) beats July (63.3%) on this corridor. Seasonal chart
  • 4 other routes post a similar 75.3% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.