Flight profile · Republic Airways

YX5636

New York (LGA) to Louisville (SDF) · scheduled 6:30 PM – 8:58 PM

FlyerIntel does not track flights in the air. This page describes how YX5636 has historically performed, which is a different and more useful question when you are deciding what to book. For today’s status, check with Republic Airways.

How YX5636 performs

433 operations, 2024-06-07 to 2026-06-28.

On-time arrivals
75.7%
309 of 408 completed
Cancellation rate
5.77%
25 cancelled
Median arrival delay
-13 min
Average 4.9 min
Severe delays
12.7%
Arrived 60+ minutes late
Delay when late
79 min
Average, when 15+ min late
Departure punctuality
76.8%
Left the gate on time

YX5636 arrived on time 75.7% of the time, against 85.0% for all LGASDF flights — this specific departure is 9.3 percentage points worse than the route as a whole. Against Republic Airways’s own flights on this route it is 9.1 points worse.

Source: US DOT Bureau of Transportation Statistics · 433 operations between 2024-06-07 to 2026-06-28

Against the rest of the route

On timeCancelledMedian delaySevereFlights
YX563675.7%5.77%-13 min12.7%433
Republic Airways on LGASDF84.9%2.61%-16 min6.0%3,794
All LGASDF flights85.0%2.58%-16 min6.0%4,184

Source: FlyerIntel analysis of US DOT BTS data · 2024-06-07 to 2026-06-28

Other routes YX5636 has flown

A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.

RouteOperatedFlightsOn time
ORDJFK Chicago to New York2025-12-202026-01-0416
ORFLGA Norfolk to New York2025-06-082025-12-1917768.4%
LGAORF New York to Norfolk2025-06-082025-12-1917080.2%
CMHBOS Columbus to Boston2023-07-102025-08-2343
LGACLE New York to Cleveland2025-05-102025-05-314
BOSJFK Boston to New York2024-09-092024-10-0628
LEXDTW Lexington to Detroit2024-07-132024-09-078
RICLGA Richmond to New York2024-06-082024-07-065
DCAMSN Washington to Madison2024-05-072024-06-0627
MSNDCA Madison to Washington2024-05-072024-06-0627
ORDBOS Chicago to Boston2024-04-092024-05-0628
DCALGA Washington to New York2024-01-082024-04-0888
DTWDCA Detroit to Washington2024-01-072024-01-071
BOSRIC Boston to Richmond2023-12-172024-01-0520
RICBOS Richmond to Boston2023-12-172023-12-3012
BOSLGA Boston to New York2023-11-062023-12-0622
DCABOS Washington to Boston2023-10-282023-11-047
BOSSDF Boston to Louisville2023-10-292023-10-291
LGABOS New York to Boston2023-10-092023-10-2715
SDFBOS Louisville to Boston2023-10-152023-10-222
BOSCLT Boston to Charlotte2023-09-052023-10-0412
CLTBOS Charlotte to Boston2023-09-062023-09-135

Because the same number has served different journeys, the statistics above describe only the route YX5636 currently operates. Blending them would produce an average of two different flights.

Data and methodology

Calculated by FlyerIntel from 433 records of YX5636 operating LGASDF, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.

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