Denver to New York — airline reliability comparison
Delta Air Lines is the most reliable airline on the DEN to LGA route with a 80% on-time rate, compared to Frontier Airlines at 62%. Based on 3,519 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 |
|---|---|---|---|---|
| Delta Air LinesDLBest | 80% | 3.1% | 83m | 3,519 |
| United AirlinesUA | 76% | 1.4% | 63m | 7,444 |
| Southwest AirlinesWN | 70% | 1.7% | 58m | 4,928 |
| JetBlue AirwaysB6 | 70% | 1.7% | 114m | 858 |
| Frontier AirlinesF9Worst | 62% | 3.0% | 66m | 403 |
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.