Flight profile · Republic Airways

YX5651

New York (LGA) to Louisville (SDF) · scheduled 5:45 PM – 4:11 PM

FlyerIntel does not track flights in the air. This page describes how YX5651 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 YX5651 performs

168 operations, 2024-01-08 to 2026-06-30.

On-time arrivals
86.9%
139 of 160 completed
Cancellation rate
4.76%
8 cancelled
Median arrival delay
-22 min
Average -12.9 min
Severe delays
3.1%
Arrived 60+ minutes late
Delay when late
52 min
Average, when 15+ min late
Departure punctuality
87.5%
Left the gate on time

YX5651 arrived on time 86.9% of the time, against 85.0% for all LGASDF flights — this specific departure is 1.8 percentage points better than the route as a whole. Against Republic Airways’s own flights on this route it is 2.0 points better.

Source: US DOT Bureau of Transportation Statistics · 168 operations between 2024-01-08 to 2026-06-30

Against the rest of the route

On timeCancelledMedian delaySevereFlights
YX565186.9%4.76%-22 min3.1%168
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 · 2024-01-08 to 2026-06-30

Other routes YX5651 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
SDFLGA Louisville to New York2024-06-072026-06-0528479.5%
LGAMKE New York to Milwaukee2026-04-132026-05-0621
MKELGA Milwaukee to New York2026-04-132026-05-0621
BNABOS Nashville to Boston2024-05-262026-04-253
BOSBNA Boston to Nashville2024-05-262026-04-253
BOSRDU Boston to Raleigh–Durham2025-12-202026-01-0311
JFKBOS New York to Boston2025-06-082025-12-1919455.9%
LGAPWM New York to Portland2025-05-072025-06-0627
PWMLGA Portland to New York2025-05-072025-06-0627
DTWSDF Detroit to Louisville2025-04-192025-05-033
ORDBOS Chicago to Boston2025-01-062025-03-0862
LGAMEM New York to Memphis2025-01-052025-01-051
DCABOS Washington to Boston2024-12-072024-12-213
LGARIC New York to Richmond2024-11-162024-11-304
JFKSYR New York to Syracuse2024-11-022024-11-021
CLELGA Cleveland to New York2024-09-092024-10-0628
LGACLE New York to Cleveland2024-09-092024-10-0628
BOSCLE Boston to Cleveland2024-04-092024-05-0624
CLEBOS Cleveland to Boston2024-04-092024-05-0624
MSNLGA Madison to New York2023-10-092024-04-0848
DTWSYR Detroit to Syracuse2024-03-102024-03-101
PITDTW Pittsburgh to Detroit2023-12-072023-12-147
INDBOS Indianapolis to Boston2023-10-142023-10-212
PITBOS Pittsburgh to Boston2023-07-092023-10-0459
LGABOS New York to Boston2023-09-222023-09-221
LGACMH New York to Columbus2023-09-092023-09-091
BOSPIT Boston to Pittsburgh2023-07-092023-09-0458

Because the same number has served different journeys, the statistics above describe only the route YX5651 currently operates. Blending them would produce an average of two different flights.

Data and methodology

Calculated by FlyerIntel from 168 records of YX5651 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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