Chicago to Fort Lauderdale — airline reliability comparison
United Airlines is the most reliable airline on the ORD to FLL route with a 81% on-time rate, compared to Southwest Airlines at 62%. Based on 4,654 flights tracked.
This route involves weather-prone airports and high-congestion airports, which can affect reliability regardless of airline.
Source: Bureau of Transportation Statistics. Updated October 2026.| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| United AirlinesUABest | 81% | 1.1% | 67m | 4,654 |
| JetBlue AirwaysB6 | 78% | 11.1% | 61m | 45 |
| American AirlinesAA | 75% | 1.0% | 78m | 1,984 |
| Spirit AirlinesNK | 71% | 1.9% | 79m | 3,941 |
| Frontier AirlinesF9 | 68% | 2.6% | 103m | 177 |
| Southwest AirlinesWNWorst | 62% | 3.7% | 51m | 27 |
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.