MARKETING CARRIER REPORT
UA
United Airlines historical flight reliability
Aggregate arrival outcomes across 821,041 domestic scheduled reportable flights marketed by United Airlines in July 2025–June 2026.
HISTORICAL ROUTE SIGNALGenerally reliable
77.9%arrived on time
13.6%30+ min late
1.0%cancelled
821,041scheduled flights
LARGEST QUALIFYING SAMPLES
SEARCH ROUTES →United Airlines route reports
ORD→LGAChicago, IL (ORD) to New York, NY (LGA)4,662 flights analyzedVariable64.8%on timeLGA→ORDNew York, NY (LGA) to Chicago, IL (ORD)4,662 flights analyzedVariable64.0%on timeORD→EWRChicago, IL (ORD) to Newark, NJ (EWR)4,391 flights analyzedVariable69.5%on timeEWR→ORDNewark, NJ (EWR) to Chicago, IL (ORD)4,389 flights analyzedVariable69.4%on timeMCO→EWROrlando, FL (MCO) to Newark, NJ (EWR)4,014 flights analyzedGenerally reliable76.3%on timeEWR→MCONewark, NJ (EWR) to Orlando, FL (MCO)4,014 flights analyzedGenerally reliable77.6%on timeIAH→ORDHouston, TX (IAH) to Chicago, IL (ORD)4,007 flights analyzedGenerally reliable77.3%on timeORD→IAHChicago, IL (ORD) to Houston, TX (IAH)4,000 flights analyzedGenerally reliable78.0%on timeIAH→DENHouston, TX (IAH) to Denver, CO (DEN)3,875 flights analyzedLower disruption81.1%on timeDEN→IAHDenver, CO (DEN) to Houston, TX (IAH)3,875 flights analyzedGenerally reliable77.7%on timeSFO→ORDSan Francisco, CA (SFO) to Chicago, IL (ORD)3,815 flights analyzedGenerally reliable77.1%on timeORD→SFOChicago, IL (ORD) to San Francisco, CA (SFO)3,813 flights analyzedVariable69.0%on timeEWR→SFONewark, NJ (EWR) to San Francisco, CA (SFO)3,793 flights analyzedVariable67.0%on timeSFO→EWRSan Francisco, CA (SFO) to Newark, NJ (EWR)3,790 flights analyzedGenerally reliable72.8%on timeORD→DENChicago, IL (ORD) to Denver, CO (DEN)3,758 flights analyzedGenerally reliable76.5%on timeDEN→ORDDenver, CO (DEN) to Chicago, IL (ORD)3,756 flights analyzedGenerally reliable70.6%on timeIAH→SFOHouston, TX (IAH) to San Francisco, CA (SFO)3,600 flights analyzedGenerally reliable78.2%on timeSFO→IAHSan Francisco, CA (SFO) to Houston, TX (IAH)3,600 flights analyzedLower disruption84.3%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.