Flight profile · SkyWest Airlines

OO3957

Detroit (DTW) to Louisville (SDF) · scheduled 3:55 PM – 6:34 PM

FlyerIntel does not track flights in the air. This page describes how OO3957 has historically performed, which is a different and more useful question when you are deciding what to book. For today’s status, check with SkyWest Airlines.

How OO3957 performs

373 operations, 2024-01-14 to 2026-06-06.

On-time arrivals
73.3%
272 of 371 completed
Cancellation rate
0.54%
2 cancelled
Median arrival delay
-2 min
Average 14.0 min
Severe delays
11.1%
Arrived 60+ minutes late
Delay when late
70 min
Average, when 15+ min late
Departure punctuality
72.5%
Left the gate on time

OO3957 arrived on time 73.3% of the time, against 82.2% for all DTWSDF flights — this specific departure is 8.9 percentage points worse than the route as a whole. Against SkyWest Airlines’s own flights on this route it is 6.9 points worse.

Source: US DOT Bureau of Transportation Statistics · 373 operations between 2024-01-14 to 2026-06-06

Against the rest of the route

On timeCancelledMedian delaySevereFlights
OO395773.3%0.54%-2 min11.1%373
SkyWest Airlines on DTWSDF80.2%0.91%-7 min7.6%1,872
All DTWSDF flights82.2%0.71%-8 min6.2%3,518

Source: FlyerIntel analysis of US DOT BTS data · 2024-01-14 to 2026-06-06

Other routes OO3957 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
SDFDTW Louisville to Detroit2024-01-152026-06-0626473.0%
DTWALB Detroit to Albany2023-10-282026-03-0669
BOISLC Boise to Salt Lake City2025-12-202026-01-0412
LGABNA New York to Nashville2024-12-212025-01-0415
PDXSEA Portland to Seattle2024-12-202024-12-201
CMHDTW Columbus to Detroit2024-12-192024-12-191
DTWCMH Detroit to Columbus2024-12-192024-12-191
FSDMSP Sioux Falls to Minneapolis2024-11-112024-12-1838
MSPFSD Minneapolis to Sioux Falls2024-11-112024-12-1838
JFKBNA New York to Nashville2024-10-072024-11-1035
CLEJFK Cleveland to New York2024-09-092024-10-0628
DTWIAD Detroit to Washington2024-06-072024-09-0887
DTWMDW Detroit to Chicago2023-09-052023-12-1565
ALBDTW Albany to Detroit2023-10-282023-11-048
SLCSMF Salt Lake City to Sacramento2023-10-152023-10-222
SMFSLC Sacramento to Salt Lake City2023-10-152023-10-222
ATLHSV Atlanta to Huntsville2023-09-162023-09-232
HSVATL Huntsville to Atlanta2023-09-162023-09-232
CLEMSP Cleveland to Minneapolis2023-09-042023-09-041
DTWLEX Detroit to Lexington2023-07-052023-07-094
LEXDTW Lexington to Detroit2023-07-052023-07-094
ATLAGS Atlanta to Augusta2023-07-012023-07-082

Because the same number has served different journeys, the statistics above describe only the route OO3957 currently operates. Blending them would produce an average of two different flights.

Data and methodology

Calculated by FlyerIntel from 373 records of OO3957 operating DTWSDF, 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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