New York to Denver — airline reliability comparison
Delta Air Lines is the most reliable airline on the JFK to DEN route with a 78% on-time rate, compared to JetBlue Airways at 67%. Based on 3,397 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 | 78% | 2.0% | 71m | 3,397 |
| Frontier AirlinesF9 | 67% | 0.0% | 237m | 41 |
| JetBlue AirwaysB6Worst | 67% | 2.2% | 65m | 1,989 |
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.