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Route · SDF → CLT · 2020–2025 BTS data

Louisville to Charlotte

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SDF to CLT (Louisville to Charlotte) ranks #1008 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

82.5%
On-time
+3.5 pts
vs US avg
103 min
Delay when late
11,237
Flights
#1008 of 4927
Corpus placement

Cancelled

1.7%

Best Month

Sep 2025 86%

Worst Month

Jul 2024 60%

Distance

335 mi

Carriers

17

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 145 36 2 0 OH,AA
Nov 2025 140 23 3 0 OH,AA
Oct 2025 141 21 0 0 AA,OH
Sep 2025 159 22 1 0 OH,AA
Aug 2025 156 24 1 1 AA,OH
Jul 2025 142 36 3 0 AA,OH
Jun 2025 140 43 6 0 AA,OH
May 2025 150 39 3 0 AA,OH
Apr 2025 138 36 2 1 OH,AA
Mar 2025 152 29 4 0 AA,OH
Feb 2025 137 42 4 0 AA,OH
Jan 2025 154 38 12 2 AA,OH
Dec 2024 163 47 1 0 AA,OH
Nov 2024 156 25 0 0 OH,AA
Oct 2024 174 37 0 0 AA,OH
Sep 2024 180 51 4 0 OH,AA,MQ
Aug 2024 180 53 6 1 AA,MQ,OH
Jul 2024 182 72 9 1 AA,MQ,OH
Jun 2024 180 37 1 0 AA,OH
May 2024 186 67 2 0 AA,OH
Apr 2024 176 53 0 0 AA,OH
Mar 2024 182 45 1 0 AA,OH
Feb 2024 142 22 0 0 AA,MQ,OH
Jan 2024 148 49 1 1 AA,MQ,OH

SDF–CLT seasonal on-time pattern

Best: November (87.4%) · weakest: July (76.3%)

75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 80.3%

Strongest calendar month

November

87.4% on-time · ~146 flights/mo

Busiest calendar month

March

~176 flights/mo avg

Weakest calendar month

July

76.3% on-time · ~164 flights/mo

Cancellation Rate

1.7%

66 of 3,803 flights

Diversion Rate

0.2%

7 of 3,803 flights

Explore origin & destination

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

SDF - Louisville

Full on-time, delay-cause, and seasonal performance for Louisville, KY.

SDF on-time profile

CLT - Charlotte

Full on-time, delay-cause, and seasonal performance for Charlotte, NC.

CLT on-time profile

Compare the two airports

See SDF and CLT side by side on delays, cancellations, and reliability.

Compare SDF vs CLT

Origin-hub reliability standing

Mid-pack among SDF departures

From SDF, this corridor sits with 13 other 75–85% on-time routes out of 23 tracked departures, not the hub's reliability leaders (9 at ≥85%) and not the softest ( 1 below 75%). Destination: Charlotte · fleet on-time rank #2165 of 4927.

What the Data Says About SDF to CLT

Bureau of Transportation Statistics records show Louisville to Charlotte (SDF to CLT) running a 82.5% on-time rate over 11,237 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 102.5 minutes. The 335-mile corridor is served by 17 carriers, and over the last 24 months 1.7% of 3,803 flights were cancelled, 0.2% diverted.

The monthly split is wide on this route: Sep 2025 posted the strongest performance at 86% on-time, while Jul 2024 came in at just 60% - a 26-point swing worth factoring into travel timing.

On the multi-year calendar, SDF–CLT peaks in November at 87.4% on-time while March carries the heaviest traffic (~176 flights per month) ; the softest month is July at 76.3%, a 11.1-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does SDF to CLT rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, SDF to CLT ranks #1008 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 SDF to CLT? ▼
Flights from Louisville to Charlotte have a 82.5% on-time rate based on 11,237 flights. The average delay is 102.5 minutes. The best recent month was Sep 2025 with 86% on-time.
What is the cancellation rate for SDF to CLT? ▼
Over the last 24 months, 1.7% of flights on this route were cancelled (66 of 3,803 flights) and 0.2% were diverted.
How far is the flight from SDF to CLT? ▼
The flight distance from Louisville (SDF) to Charlotte (CLT) is approximately 335 miles. This route is served by 17 carriers.
When is the best time to fly from SDF to CLT? ▼
The best recent month for on-time performance was Sep 2025 (86% on-time). The worst was Jul 2024 (60% on-time). Consider booking during months with historically better performance.

Airports on this route

SDF Airport

Louisville
CLT Airport

Charlotte
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 SDF–CLT data

SDF–CLT runs 3.5 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare SDF and CLT airport profiles: delay causes and top routes differ even on the same corridor. SDF airport
  • If your dates flex, November (87.4% on-time) beats July (76.3%) on this corridor. Seasonal chart
  • 4 other routes post a similar 82.5% 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.