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Route · SDF → LGA · 2020–2025 BTS data

Louisville to New York

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SDF to LGA (Louisville to New York) ranks #1782 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

85.6%
On-time
+6.6 pts
vs US avg
81 min
Delay when late
7,086
Flights
#1782 of 4927
Corpus placement

Cancelled

1.9%

Best Month

Sep 2024 95%

Worst Month

Dec 2025 71%

Distance

659 mi

Carriers

14

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 90 26 1 0 YX
Nov 2025 95 22 4 0 YX
Oct 2025 92 14 3 0 YX
Sep 2025 98 7 1 0 YX
Aug 2025 91 9 0 0 OO,YX
Jul 2025 115 18 10 0 OO,YX
Jun 2025 115 18 3 1 OO,YX
May 2025 139 24 2 0 AA,OO,YX
Apr 2025 138 16 1 0 YX
Mar 2025 139 21 0 0 YX
Feb 2025 124 28 1 2 YX
Jan 2025 128 31 5 0 YX
Dec 2024 119 18 0 0 9E,YX
Nov 2024 130 9 0 0 YX
Oct 2024 139 8 0 0 YX
Sep 2024 132 6 0 0 YX
Aug 2024 136 17 8 0 YX
Jul 2024 139 27 2 1 OO,YX
Jun 2024 129 14 4 0 9E,OO,YX
May 2024 144 15 2 1 9E,AA,OO,YX
Apr 2024 129 12 2 1 OO,YX
Mar 2024 129 16 0 0 YX,OO
Feb 2024 124 18 2 1 OO,YX
Jan 2024 125 29 5 0 YX,OO

SDF–LGA seasonal on-time pattern

Best: September (90.5%) · weakest: January (79.9%)

75%80%85%90%95% JanFebMarAprMayJunJulAugSepOctNovDec 83.8%

Strongest calendar month

September

90.5% on-time · ~109 flights/mo

Busiest calendar month

March

~134 flights/mo avg

Weakest calendar month

January

79.9% on-time · ~128 flights/mo

Cancellation Rate

1.9%

56 of 2,939 flights

Diversion Rate

0.2%

7 of 2,939 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

LGA - New York

Full on-time, delay-cause, and seasonal performance for New York, NY.

LGA on-time profile

Compare the two airports

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

Compare SDF vs LGA

Origin-hub reliability standing

Among SDF's stronger departures

SDF → LGA posts a 85.6% on-time rate, landing in the ≥85% band with 9 of 23 BTS-tracked routes leaving Louisville. The same hub also shows 13 mid-band and 1 challenged departures · fleet-wide on-time rank #1041 of 4927 (highest on-time = #1).

What the Data Says About SDF to LGA

Louisville to New York (SDF to LGA) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 85.6% on-time rate across 7,086 flights, with delays that do happen averaging 80.7 minutes. The corridor runs roughly 659 miles and is served by 14 carriers. Over the most recent 24 months, 56 of 2,939 flights were cancelled (1.9%) and 7 diverted (0.2%).

The monthly split is wide on this route: Sep 2024 posted the strongest performance at 95% on-time, while Dec 2025 came in at just 71% - a 24-point swing worth factoring into travel timing.

On the multi-year calendar, SDF–LGA peaks in September at 90.5% on-time while March carries the heaviest traffic (~134 flights per month) ; the softest month is January at 79.9%, a 10.6-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does SDF to LGA rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, SDF to LGA ranks #1782 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 LGA? ▼
Flights from Louisville to New York have a 85.6% on-time rate based on 7,086 flights. The average delay is 80.7 minutes. The best recent month was Sep 2024 with 95% on-time.
What is the cancellation rate for SDF to LGA? ▼
Over the last 24 months, 1.9% of flights on this route were cancelled (56 of 2,939 flights) and 0.2% were diverted.
How far is the flight from SDF to LGA? ▼
The flight distance from Louisville (SDF) to New York (LGA) is approximately 659 miles. This route is served by 14 carriers.
When is the best time to fly from SDF to LGA? ▼
The best recent month for on-time performance was Sep 2024 (95% on-time). The worst was Dec 2025 (71% on-time). Consider booking during months with historically better performance.

Airports on this route

SDF Airport

Louisville
LGA Airport

New York
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–LGA data

SDF–LGA runs 6.6 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 LGA airport profiles: delay causes and top routes differ even on the same corridor. SDF airport
  • If your dates flex, September (90.5% on-time) beats January (79.9%) on this corridor. Seasonal chart
  • 4 other routes post a similar 85.6% 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.