MARKETING CARRIER REPORT
F9
Frontier Airlines historical flight reliability
Across 205,332 scheduled domestic flights marketed by Frontier Airlines, 71.7% arrived on time, 18.7% arrived at least 30 minutes late, and 1.9% were cancelled during July 2025–June 2026.
Source: U.S. Bureau of Transportation Statistics · National marketing-carrier cohort · Updated September 16, 2026
HISTORICAL ROUTE SIGNALGenerally reliable
71.7%arrived on time
18.7%30+ min late
1.9%cancelled
205,332scheduled flights
LARGEST QUALIFYING SAMPLES
SEARCH ROUTES →Which Frontier Airlines published route was most reliable?
Among qualifying Frontier Airlines published route results, DEN to SLC had the highest on-time rate: 81.3% of 1,010 flights. ATL to PHL was lowest at 60.4% across 1,010 flights.
DEN→LASDenver, CO (DEN) to Las Vegas, NV (LAS)1,557 flights analyzedGenerally reliable75.6%on timeLAS→DENLas Vegas, NV (LAS) to Denver, CO (DEN)1,554 flights analyzedGenerally reliable78.2%on timePHL→MCOPhiladelphia, PA (PHL) to Orlando, FL (MCO)1,529 flights analyzedVariable68.5%on timeMCO→PHLOrlando, FL (MCO) to Philadelphia, PA (PHL)1,528 flights analyzedGenerally reliable70.0%on timeDEN→PHXDenver, CO (DEN) to Phoenix, AZ (PHX)1,432 flights analyzedGenerally reliable76.8%on timePHX→DENPhoenix, AZ (PHX) to Denver, CO (DEN)1,427 flights analyzedGenerally reliable79.3%on timeMCO→SJUOrlando, FL (MCO) to San Juan, PR (SJU)1,242 flights analyzedGenerally reliable72.5%on timeSJU→MCOSan Juan, PR (SJU) to Orlando, FL (MCO)1,240 flights analyzedGenerally reliable77.6%on timeCLE→MCOCleveland, OH (CLE) to Orlando, FL (MCO)1,190 flights analyzedGenerally reliable73.2%on timeMCO→CLEOrlando, FL (MCO) to Cleveland, OH (CLE)1,189 flights analyzedGenerally reliable73.3%on timeATL→MCOAtlanta, GA (ATL) to Orlando, FL (MCO)1,181 flights analyzedVariable64.5%on timeMCO→ATLOrlando, FL (MCO) to Atlanta, GA (ATL)1,180 flights analyzedVariable66.6%on timeDFW→DENDallas/Fort Worth, TX (DFW) to Denver, CO (DEN)1,126 flights analyzedGenerally reliable76.5%on timeDEN→DFWDenver, CO (DEN) to Dallas/Fort Worth, TX (DFW)1,125 flights analyzedGenerally reliable74.3%on timeSLC→DENSalt Lake City, UT (SLC) to Denver, CO (DEN)1,012 flights analyzedGenerally reliable77.4%on timeATL→PHLAtlanta, GA (ATL) to Philadelphia, PA (PHL)1,010 flights analyzedVariable60.4%on timeDEN→SLCDenver, CO (DEN) to Salt Lake City, UT (SLC)1,010 flights analyzedLower disruption81.3%on timePHL→ATLPhiladelphia, PA (PHL) to Atlanta, GA (ATL)1,008 flights analyzedVariable64.4%on time
Network averages hide route mix.
An airline's national result reflects where and when it flies. A route-specific comparison is usually more useful for a booking decision.