BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
EWR→SDF

Newark, NJ (EWR) to Louisville, KY (SDF) flight delay odds

77.9% of 973 official scheduled EWR-to-SDF flights arrived on time; 12.4% arrived at least 30 minutes late and 4.7% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALHigher disruption
77.9%arrived on time
12.4%30+ min late
4.7%cancelled
973scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.7%all scheduled flights
120+ minutes late2.7%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival-0.6 mincompleted flights

Which departure time was most reliable for EWR to SDF?

Among qualifying EWR-to-SDF departure window results, Late morning had the highest on-time rate: 84.9% of 325 flights. Night was lowest at 72.7% across 88 flights.

Departure windowFlightsOn time30+ minCancelled
Late morning32584.9%9.8%1.8%
Afternoon10677.4%11.3%5.7%
Evening45374.0%14.3%5.5%
Night8872.7%13.6%10.2%

Which weekday was most reliable for EWR to SDF?

Among qualifying EWR-to-SDF weekday results, Thursday had the highest on-time rate: 81.4% of 145 flights. Sunday was lowest at 67.4% across 141 flights.

DayFlightsOn time30+ minCancelled
Monday14276.8%11.3%7.0%
Tuesday14479.2%11.8%4.2%
Wednesday13980.6%10.8%3.6%
Thursday14581.4%9.7%4.1%
Friday14180.1%12.1%2.1%
Saturday12180.2%14.0%2.5%
Sunday14167.4%17.7%9.2%

Which airline was most reliable for EWR to SDF?

Only Republic Airways met the EWR-to-SDF airline threshold: 77.9% of 958 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Republic Airways95877.9%12.4%4.8%
Spirit Airlines1283.3%8.3%0.0%
United Airlines366.7%33.3%0.0%

Which month was most reliable for EWR to SDF?

Among qualifying EWR-to-SDF month results, May 2026 had the highest on-time rate: 90.1% of 91 flights. November 2025 was lowest at 67.4% across 86 flights.

MonthFlightsOn time30+ minCancelled
July 20257371.2%16.4%8.2%
August 20256581.5%13.8%1.5%
September 20256385.7%6.3%3.2%
October 20259373.1%17.2%2.2%
November 20258667.4%15.1%8.1%
December 20257471.6%18.9%5.4%
January 20268777.0%9.2%9.2%
February 20268080.0%6.2%10.0%
March 20268875.0%18.2%2.3%
April 20268385.5%7.2%0.0%
May 20269190.1%4.4%2.2%
June 20269077.8%15.6%4.4%

What drove EWR to SDF delay minutes?

Late aircraft was the largest recorded EWR-to-SDF delay category, accounting for 53.1% of 12,146 BTS-attributed delay minutes during July 2025–June 2026.

Airline25.8%
Late aircraft53.1%
National airspace20.4%
Weather0.7%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.