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Route · LAS → SDF · 2020–2025 BTS data

Las Vegas to Louisville

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), LAS to SDF (Las Vegas to Louisville) ranks #3637 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

71.1%
On-time
-7.9 pts
vs US avg
62 min
Delay when late
2,290
Flights
#3637 of 4927
Corpus placement

Cancelled

0.3%

Best Month

Dec 2023 74%

Worst Month

Oct 2023 58%

Distance

1,624 mi

Carriers

5

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 31 14 0 0 WN
Oct 2025 48 12 0 0 WN,NK
Sep 2025 46 11 0 0 WN,NK
Aug 2025 31 10 0 0 WN
Jul 2025 31 13 0 0 WN
Jun 2025 30 14 1 0 WN
May 2025 32 10 0 0 WN
Apr 2025 30 7 0 0 WN
Mar 2025 31 7 0 0 WN
Jan 2025 31 2 1 0 WN
Dec 2024 31 4 0 0 WN
Nov 2024 32 4 0 0 NK,WN
Oct 2024 47 10 0 0 WN,NK
Sep 2024 52 14 0 0 WN,NK
Aug 2024 53 15 0 0 NK,WN
Jul 2024 49 12 1 1 NK,WN
Jun 2024 47 10 0 0 NK,WN
May 2024 49 22 0 0 NK,WN
Apr 2024 42 11 0 0 NK,WN
Mar 2024 30 14 0 0 WN
Jan 2024 36 10 0 0 WN,NK
Dec 2023 61 16 0 0 NK,WN
Nov 2023 59 23 0 0 NK,WN
Oct 2023 62 26 0 0 NK,WN

LAS–SDF seasonal on-time pattern

Best: January (84.7%) · weakest: July (64.9%)

60%65%70%75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 69.6%

Strongest calendar month

January

84.7% on-time · ~38 flights/mo

Busiest calendar month

September

~57 flights/mo avg

Weakest calendar month

July

64.9% on-time · ~50 flights/mo

Cancellation Rate

0.3%

3 of 991 flights

Diversion Rate

0.1%

1 of 991 flights

Explore origin & destination

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

LAS - Las Vegas

Full on-time, delay-cause, and seasonal performance for Las Vegas, NV.

LAS on-time profile

SDF - Louisville

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

SDF on-time profile

Compare the two airports

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

Compare LAS vs SDF

Origin-hub reliability standing

Softer reliability from LAS

Among 83 routes leaving LAS, only 10 (including this one) clear below 75% on-time, while 2 stay ≥85% and 71 sit mid-band. Travelers comparing LAS options should weigh this 71.1% print against those peers · fleet on-time rank #4803 of 4927.

What the Data Says About LAS to SDF

On-time performance on the LAS to SDF pairing (Las Vegas to Louisville) trails a chunk of the network: 71.1% of 2,290 tracked flights arrived on schedule, with a 62.1-minute average delay on the ones that ran late. The route spans about 1,624 miles across 5 carriers. Cancellations over the trailing 24 months hit 0.3% (3 of 991 flights), with 0.1% diverted.

The monthly split is wide on this route: Dec 2023 posted the strongest performance at 74% on-time, while Oct 2023 came in at just 58% - a 16-point swing worth factoring into travel timing.

On the multi-year calendar, LAS–SDF peaks in January at 84.7% on-time while September carries the heaviest traffic (~57 flights per month) ; the softest month is July at 64.9%, a 19.8-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does LAS to SDF rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, LAS to SDF ranks #3637 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 LAS to SDF? ▼
Flights from Las Vegas to Louisville have a 71.1% on-time rate based on 2,290 flights. The average delay is 62.1 minutes. The best recent month was Dec 2023 with 74% on-time.
What is the cancellation rate for LAS to SDF? ▼
Over the last 24 months, 0.3% of flights on this route were cancelled (3 of 991 flights) and 0.1% were diverted.
How far is the flight from LAS to SDF? ▼
The flight distance from Las Vegas (LAS) to Louisville (SDF) is approximately 1,624 miles. This route is served by 5 carriers.
When is the best time to fly from LAS to SDF? ▼
The best recent month for on-time performance was Dec 2023 (74% on-time). The worst was Oct 2023 (58% on-time). Consider booking during months with historically better performance.

Airports on this route

LAS Airport

Las Vegas
SDF Airport

Louisville
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 LAS–SDF data

LAS–SDF sits 7.9 pts below the national 79% average; check the seasonal chart and airport profiles before treating the headline as typical.

  • Compare LAS and SDF airport profiles: delay causes and top routes differ even on the same corridor. LAS airport
  • If your dates flex, January (84.7% on-time) beats July (64.9%) on this corridor. Seasonal chart
  • 4 other routes post a similar 71.1% 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.