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Route on-time record

SDF to EWR: most on-time flights and the best time to fly

Louisville (Louisville Muhammad Ali International Airport) to Newark (Newark Liberty International Airport). 953 nonstop flights in Jun 2025 to May 2026, 86% arrived within 15 minutes and 4.2% were cancelled. The most reliable flight number was Republic 3682 at 8:47 AM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

SDF → EWR

Louisville to Newark: 953 nonstop flights a year

On time (12 months)

86%

Cancelled

4.2%

avg delay 10 min

Best time to leave

9 AM to noon

93% on time vs 72% 3 to 6 PM

Most reliable airline

Republic

83% chance on time

Check SDF to EWR fares

Fares open on our travel partner (Aviasales). Pick the flight number you chose here.

Most reliable nonstop flights

Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.

  1. #1 · Republic 3682 · sold as American Eagle, Delta Connection or United Express

    8:47 AM → 11:00 AM2h 13m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    89%

    chance on time

    On time (history)
    92%
    Cancelled
    2.4%
    Avg arrival delay
    7 min
    • Arrived on time 92% of the time (200 flights, Jun 2025 to May 2026).

    Strong track record · 200 flights

    Find 8:47 AM flight fares Opens this date on Aviasales

  2. #2 · Republic 3592 · sold as American Eagle, Delta Connection or United Express

    4:17 PM → 6:30 PM2h 13m nonstop

    Local times, typical schedule. Last flown 2026-05-19.

    87%

    chance on time

    On time (history)
    100%
    Cancelled
    6.3%
    Avg arrival delay
    2 min
    • Arrived on time 100% of the time (15 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (3 to 6 PM: 72% on time; 9 AM to noon: 93%).
    • Lands inside EWR's trouble window: 65% of its 259 ground stops and delay programs started between 1 PM and 7 PM.
    • Short track record (15 flights), so its score leans on the airline's record at this hour.

    Limited track record · 15 flights

    Find 4:17 PM flight fares Opens this date on Aviasales

  3. #3 · Republic 3594 · sold as American Eagle, Delta Connection or United Express

    6:00 AM → 8:13 AM2h 12m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    86%

    chance on time

    On time (history)
    90%
    Cancelled
    4.1%
    Avg arrival delay
    6 min
    • Arrived on time 90% of the time (328 flights, Jun 2025 to May 2026).
    • Cancelled 4.1% of the time (14 of 343).

    Strong track record · 328 flights

    Find 6:00 AM flight fares Opens this date on Aviasales

  4. #4 · Republic 3661 · sold as American Eagle, Delta Connection or United Express

    1:05 PM → 3:28 PM2h 23m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    80%

    chance on time

    On time (history)
    100%
    Cancelled
    0.0%
    Avg arrival delay
    0 min
    • Arrived on time 100% of the time (11 flights, Jun 2025 to May 2026).
    • Lands inside EWR's trouble window: 65% of its 259 ground stops and delay programs started between 1 PM and 7 PM.
    • Short track record (11 flights), so its score leans on the airline's record at this hour.

    Limited track record · 11 flights

    Find 1:05 PM flight fares Opens this date on Aviasales

  5. #5 · Republic 3452 · sold as American Eagle, Delta Connection or United Express

    1:47 PM → 3:59 PM2h 12m nonstop

    Local times, typical schedule. Last flown 2026-04-29.

    75%

    chance on time

    On time (history)
    79%
    Cancelled
    4.9%
    Avg arrival delay
    12 min
    • Arrived on time 79% of the time (57 flights, Jun 2025 to May 2026).
    • Cancelled 4.9% of the time (3 of 61).
    • Lands inside EWR's trouble window: 65% of its 259 ground stops and delay programs started between 1 PM and 7 PM.
    • Short track record (57 flights), so its score leans on the airline's record at this hour.

    Limited track record · 57 flights

    Find 1:47 PM flight fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Republic Airways (sold as American Eagle, Delta Connection or United Express)83%

    929 flights · 86% on time as flown · 4.1% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

  • Before 9 AM91%

    543 flights · avg delay 6 min

  • 9 AM to noon93%

    61 flights · avg delay 6 min

  • Noon to 3 PM77%

    307 flights · avg delay 18 min

  • 3 to 6 PM72%

    34 flights · avg delay 19 min

Best day: Tuesday (91%). Worst: Friday (84%).

On time by month

All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.

J
89
F
91
M
90
A
94
M
85
J
83
J
83
A
88
S
91
O
94
N
83
D
84

What delays this route

  • Air traffic control and airport volume53%
  • Airline (crew, maintenance, boarding)25%
  • Late-arriving aircraft19%
  • Severe weather3%

Share of delay minutes by the cause airlines report to the US DOT.

Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure

SDF to EWR questions

What time of day is best to fly SDF to EWR?
9 AM to noon: 93% of flights arrived on time, against 72% for departures 3 to 6 PM.
Which airline is most on time from SDF to EWR?
Republic, with a season-adjusted 83% chance of operating and arriving on time over 929 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
What is the worst month for delays on SDF to EWR?
November (83% on time); the best was October (94%), averaged over Jun 2023 to May 2026.
Is this a prediction for my flight?
No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.

More routes from SDF

Live status: FAA delays and ground stops