Route on-time record
SDF to DAL: most on-time flights and the best time to fly
Louisville (Louisville Muhammad Ali International Airport) to Dallas (Dallas Love Field). 351 nonstop flights in Jun 2025 to May 2026, 86% arrived within 15 minutes and 0.6% were cancelled. The most reliable flight number was Southwest 1536 at 1:00 PM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
SDF → DAL
Louisville to Dallas: 351 nonstop flights a year
On time (12 months)
86%
Cancelled
0.6%
avg delay 8 min
Best time to leave
Before 9 AM
95% on time vs 70% 9 AM to noon
Most reliable airline
Southwest
85% chance on time
Lowest nonstop fare seen in the next two months: $276 (Southwest 3453 on 2026-10-27). 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 · Southwest 1536
1:00 PM → 2:15 PM2h 15m nonstop
Local times, typical schedule. Last flown 2026-04-06.
88%
chance on time
- On time (history)
- 93%
- Cancelled
- 0.0%
- Avg arrival delay
- 4 min
- Arrived on time 93% of the time (15 flights, Jun 2025 to May 2026).
- Lands inside DAL's trouble window: 67% of its 42 ground stops and delay programs started between 10 AM and 4 PM.
- Short track record (15 flights), so its score leans on the airline's record at this hour.
Limited track record · 15 flights
Find Southwest 1536 fares Opens this date on Aviasales#2 · Southwest 3300
10:55 AM → 12:10 PM2h 15m nonstop
Local times, typical schedule. Last flown 2026-05-31.
83%
chance on time
- On time (history)
- 71%
- Cancelled
- 0.0%
- Avg arrival delay
- 18 min
- Arrived on time 71% of the time (7 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (9 AM to noon: 70% on time; Before 9 AM: 95%).
- Lands inside DAL's trouble window: 67% of its 42 ground stops and delay programs started between 10 AM and 4 PM.
- 78% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 7 flights
Find Southwest 3300 fares Opens this date on Aviasales#3 · Southwest 223
3:30 PM → 4:45 PM2h 15m nonstop
Local times, typical schedule. Last flown 2026-04-04.
82%
chance on time
- On time (history)
- 77%
- Cancelled
- 0.0%
- Avg arrival delay
- 19 min
- Arrived on time 77% of the time (13 flights, Jun 2025 to May 2026).
- Short track record (13 flights), so its score leans on the airline's record at this hour.
Limited track record · 13 flights
Find Southwest 223 fares Opens this date on Aviasales#4 · Southwest 3374
3:40 PM → 4:55 PM2h 15m nonstop
Local times, typical schedule. Last flown 2026-05-29.
82%
chance on time
- On time (history)
- 78%
- Cancelled
- 0.0%
- Avg arrival delay
- 8 min
- Arrived on time 78% of the time (37 flights, Jun 2025 to May 2026).
- Never cancelled in 39 scheduled flights.
- Short track record (37 flights), so its score leans on the airline's record at this hour.
Limited track record · 37 flights
Find Southwest 3374 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Southwest Airlines85%
351 flights · 86% on time as flown · 0.6% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM95%
58 flights · avg delay 2 min
- 9 AM to noon70%
35 flights · avg delay 15 min
- Noon to 3 PM88%
172 flights · avg delay 6 min
- 3 to 6 PM83%
76 flights · avg delay 13 min
Best day: Friday (87%). Worst: Sunday (75%).
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.
What delays this route
- Late-arriving aircraft48%
- Air traffic control and airport volume28%
- Airline (crew, maintenance, boarding)24%
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 DAL questions
- What time of day is best to fly SDF to DAL?
- Before 9 AM: 95% of flights arrived on time, against 70% for departures 9 AM to noon. 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 DAL?
- Southwest, with a season-adjusted 85% chance of operating and arriving on time over 351 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 DAL?
- May (65% on time); the best was November (95%), 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
- DAL to SDF (return)
- SDF to ORD 79%
- SDF to ATL 89%
- SDF to DFW 74%
- SDF to CLT 82%
- SDF to DTW 82%
- SDF to DEN 83%
- SDF to LGA 83%
- SDF to DCA 79%
- SDF to MDW 85%
- SDF to EWR 86%
- SDF to BWI 86%
- SDF to MCO 81%
Live status: FAA delays and ground stops