ORIGIN AIRPORT REPORT
DEN
Denver, CO (DEN) departure reliability
Of 319,138 scheduled reportable flights departing DEN, 75.5% arrived on time, 15.2% arrived at least 30 minutes late, and 0.8% were cancelled during July 2025–June 2026.
Source: U.S. Bureau of Transportation Statistics · Origin-airport cohort · Updated September 16, 2026
HISTORICAL ROUTE SIGNALGenerally reliable
75.5%arrived on time
15.2%30+ min late
0.8%cancelled
319,138scheduled flights
MOST-FLOWN DIRECTIONS
ALL ROUTES →Which route from DEN had the largest sample?
DEN to PHX was DEN's largest published route sample, with 8,930 scheduled flights and a 75.0% on-time rate during July 2025–June 2026.
DEN→PHXDenver, CO (DEN) to Phoenix, AZ (PHX)8,930 flights analyzedGenerally reliable75.0%on timeDEN→SLCDenver, CO (DEN) to Salt Lake City, UT (SLC)7,758 flights analyzedGenerally reliable77.1%on timeDEN→LAXDenver, CO (DEN) to Los Angeles, CA (LAX)7,721 flights analyzedGenerally reliable78.6%on timeDEN→LASDenver, CO (DEN) to Las Vegas, NV (LAS)7,108 flights analyzedGenerally reliable74.7%on timeDEN→SEADenver, CO (DEN) to Seattle, WA (SEA)6,309 flights analyzedGenerally reliable73.4%on timeDEN→ORDDenver, CO (DEN) to Chicago, IL (ORD)6,161 flights analyzedGenerally reliable70.0%on timeDEN→DFWDenver, CO (DEN) to Dallas/Fort Worth, TX (DFW)6,029 flights analyzedGenerally reliable73.0%on timeDEN→SANDenver, CO (DEN) to San Diego, CA (SAN)5,949 flights analyzedGenerally reliable74.9%on timeDEN→MSPDenver, CO (DEN) to Minneapolis, MN (MSP)5,848 flights analyzedGenerally reliable77.0%on timeDEN→ATLDenver, CO (DEN) to Atlanta, GA (ATL)5,596 flights analyzedGenerally reliable79.1%on timeDEN→SFODenver, CO (DEN) to San Francisco, CA (SFO)5,415 flights analyzedVariable65.5%on timeDEN→AUSDenver, CO (DEN) to Austin, TX (AUS)5,301 flights analyzedGenerally reliable75.6%on timeDEN→COSDenver, CO (DEN) to Colorado Springs, CO (COS)5,039 flights analyzedGenerally reliable74.6%on timeDEN→IAHDenver, CO (DEN) to Houston, TX (IAH)4,673 flights analyzedGenerally reliable77.9%on timeDEN→LGADenver, CO (DEN) to New York, NY (LGA)4,672 flights analyzedVariable68.9%on time
Which airline was most reliable departing DEN?
Among qualifying DEN airline departure results, Delta Air Lines had the highest on-time rate: 81.7% of 11,579 flights. JetBlue Airways was lowest at 66.8% across 1,249 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| United Airlines | 107,305 | 77.9% | 13.8% | 0.5% |
| Southwest Airlines | 88,768 | 68.8% | 18.8% | 0.7% |
| SkyWest Airlines | 75,349 | 78.7% | 13.5% | 1.1% |
| Frontier Airlines | 22,581 | 77.3% | 14.9% | 0.7% |
| Delta Air Lines | 11,579 | 81.7% | 10.9% | 1.3% |
| American Airlines | 8,874 | 74.9% | 16.1% | 2.1% |
| Alaska Airlines | 2,700 | 75.3% | 14.0% | 0.9% |
| JetBlue Airways | 1,249 | 66.8% | 22.1% | 2.8% |
| Allegiant Air | 395 | 69.4% | 22.3% | 1.3% |
| Envoy Air | 338 | 72.8% | 16.9% | 0.6% |
Origin report, not airport-wide operations.
These figures summarize the reported scheduled passenger flights in the dataset, not every flight or every airport process.