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Route on-time record

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

Louisville (Louisville Muhammad Ali International Airport) to New York (LaGuardia Airport). 1,087 nonstop flights in Jun 2025 to May 2026, 83% arrived within 15 minutes and 4.3% were cancelled. The most reliable flight number was Republic 5652 at 6:35 AM.

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

SDF → LGA

Louisville to New York: 1,087 nonstop flights a year

On time (12 months)

83%

Cancelled

4.3%

avg delay 12 min

Best time to leave

Before 9 AM

90% on time vs 74% 3 to 6 PM

Most reliable airline

Republic

81% chance on time

Check SDF to LGA 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 5652 · sold as American Eagle, Delta Connection or United Express

    6:35 AM → 8:53 AM2h 13m nonstop

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

    85%

    chance on time

    On time (history)
    89%
    Cancelled
    5.5%
    Avg arrival delay
    5 min
    • Arrived on time 89% of the time (137 flights, Jun 2025 to May 2026).
    • Cancelled 5.5% of the time (8 of 146).
    • Leaves in this route's most on-time window (Before 9 AM: 90% on time; 3 to 6 PM: 74%).

    Moderate track record · 137 flights

    Find 6:35 AM flight fares Opens this date on Aviasales

  2. #2 · Republic 5643 · sold as American Eagle, Delta Connection or United Express

    12:05 PM → 2:14 PM2h 13m nonstop

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

    82%

    chance on time

    On time (history)
    85%
    Cancelled
    3.5%
    Avg arrival delay
    9 min
    • Arrived on time 85% of the time (223 flights, Jun 2025 to May 2026).
    • Cancelled 3.5% of the time (8 of 231).
    • Lands inside LGA's trouble window: 54% of its 285 ground stops and delay programs started between noon and 6 PM.

    Strong track record · 223 flights

    Find 12:05 PM flight fares Opens this date on Aviasales

  3. #3 · Republic 5637 · sold as American Eagle, Delta Connection or United Express

    2:16 PM → 4:30 PM2h 14m nonstop

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

    77%

    chance on time

    On time (history)
    79%
    Cancelled
    4.0%
    Avg arrival delay
    15 min
    • Arrived on time 79% of the time (121 flights, Jun 2025 to May 2026).
    • Cancelled 4.0% of the time (5 of 126).
    • Lands inside LGA's trouble window: 54% of its 285 ground stops and delay programs started between noon and 6 PM.

    Moderate track record · 121 flights

    Find 2:16 PM flight fares Opens this date on Aviasales

  4. #4 · Republic 5651 · sold as American Eagle, Delta Connection or United Express

    5:04 PM → 7:10 PM2h 08m nonstop

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

    72%

    chance on time

    On time (history)
    75%
    Cancelled
    8.6%
    Avg arrival delay
    15 min
    • Arrived on time 75% of the time (95 flights, Jun 2025 to May 2026).
    • Cancelled 8.6% of the time (9 of 105).
    • Leaves in this route's least on-time window (3 to 6 PM: 74% on time; Before 9 AM: 90%).

    Moderate track record · 95 flights

    Find 5:04 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)81%

    1,025 flights · 84% on time as flown · 3.7% cancel

  • SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)68%

    61 flights · 65% on time as flown · 7.8% cancel

On time by departure time

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

  • Before 9 AM90%

    414 flights · avg delay 8 min

  • 9 AM to noon82%

    116 flights · avg delay 9 min

  • Noon to 3 PM81%

    288 flights · avg delay 14 min

  • 3 to 6 PM74%

    269 flights · avg delay 18 min

Best day: Saturday (89%). Worst: Friday (82%).

Smarter routing

Nearby airports that run more on time

  • SDF → EWR 82% chance on time

    Louisville Muhammad Ali International Airport to Newark Liberty International Airport · 953 flights a year · 17 mi from your airports · yours: 79%

    Rank flightsFares

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
77
F
81
M
84
A
88
M
86
J
83
J
83
A
91
S
91
O
92
N
90
D
85

What delays this route

  • Air traffic control and airport volume42%
  • Airline (crew, maintenance, boarding)34%
  • Late-arriving aircraft16%
  • Severe weather8%

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 LGA questions

What time of day is best to fly SDF to LGA?
Before 9 AM: 90% of flights arrived on time, against 74% for departures 3 to 6 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
Which airline is most on time from SDF to LGA?
Republic, with a season-adjusted 81% chance of operating and arriving on time over 1,025 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 LGA?
January (77% on time); the best was October (92%), 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