St. Louis to New York — airline reliability comparison
Endeavor Air is the most reliable airline on the STL to LGA route with a 86% on-time rate, compared to Southwest Airlines at 77%. Based on 2,282 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 |
|---|---|---|---|---|
| Endeavor Air9EBest | 86% | 3.4% | 72m | 2,282 |
| Republic AirwaysYX | 85% | 3.1% | 81m | 3,679 |
| American AirlinesAA | 79% | 2.3% | 112m | 929 |
| SkyWest AirlinesOO | 78% | 2.6% | 186m | 63 |
| Southwest AirlinesWNWorst | 77% | 2.5% | 54m | 5,113 |
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.