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3 nonstop, 37 with 1 connection, 6 with 2 · ranked by overall best · 18 hidden by your Most reliable time setting (they leave at other times of day) · showing the top 3
Most reliable time: morning departures (5–11 AM), the window with the best on-time odds for this trip. Turn off “Most reliable” under Departure time in Advanced settings to see every time.
28 matching trips
Why this is our top pick
- This morning flight leaves in the most reliable time of day on this route: its best departures have a 79% reliability rating vs 63% for afternoon departures.
- It has the same 31 in of legroom as the next-best option (Southwest 3655 + Southwest 3245 on the Boeing 737-800 or 737 MAX 8); it arrives on time 11 points more often; it flies a newer plane (about 3 vs 9 years old).
6:10 AM10:15 AMFLL → STL
Southwest · WN 3655 / WN 3245
5h 05m1 stop
1h 20m in MCO
One ticket
81%arrive on time88% connections madeCheck fares
5:29 AM9:05 AMFLL → STL
Delta · DL 1168 / DL 1571
4h 37m1 stop
1h 00m in ATL
One ticket
81%arrive on time89% connections madeCheck fares
Aircraft and legroom reflect the planes each flight has flown recently. Airlines can swap planes and seat maps change, so check the airline’s seat map when you book.
FLL → STL
Fort Lauderdale to St Louis: 853 nonstop flights a year
On time (12 months)
78%
Cancelled
0.6%
avg delay 13 min
Best time to leave
Before 9 AM
95% on time vs 55% 6 to 9 PM
Most reliable airline
Southwest
78% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Southwest Airlines78%
766 flights · 78% on time as flown · 0.4% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM95%
382 flights · avg delay 4 min
- 9 AM to noon82%
102 flights · avg delay 10 min
- Noon to 3 PM65%
78 flights · avg delay 17 min
- 3 to 6 PM59%
129 flights · avg delay 20 min
- 6 to 9 PM55%
161 flights · avg delay 29 min
Best day: Tuesday (83%). Worst: Sunday (69%).
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