ORIGIN AIRPORT REPORT
BOS
Boston, MA (BOS) departure reliability
Of 143,082 scheduled reportable flights departing BOS, 73.4% arrived on time, 16.3% arrived at least 30 minutes late, and 2.6% were cancelled during July 2025–June 2026.
Source: U.S. Bureau of Transportation Statistics · Origin-airport cohort · Updated September 16, 2026
HISTORICAL ROUTE SIGNALVariable
73.4%arrived on time
16.3%30+ min late
2.6%cancelled
143,082scheduled flights
MOST-FLOWN DIRECTIONS
ALL ROUTES →Which route from BOS had the largest sample?
BOS to DCA was BOS's largest published route sample, with 9,082 scheduled flights and a 70.9% on-time rate during July 2025–June 2026.
BOS→DCABoston, MA (BOS) to Washington, DC (DCA)9,082 flights analyzedVariable70.9%on timeBOS→ORDBoston, MA (BOS) to Chicago, IL (ORD)7,637 flights analyzedVariable70.3%on timeBOS→LGABoston, MA (BOS) to New York, NY (LGA)7,251 flights analyzedHigher disruption73.2%on timeBOS→JFKBoston, MA (BOS) to New York, NY (JFK)5,738 flights analyzedHigher disruption72.0%on timeBOS→PHLBoston, MA (BOS) to Philadelphia, PA (PHL)4,961 flights analyzedVariable74.2%on timeBOS→ATLBoston, MA (BOS) to Atlanta, GA (ATL)4,931 flights analyzedGenerally reliable76.8%on timeBOS→LAXBoston, MA (BOS) to Los Angeles, CA (LAX)4,713 flights analyzedGenerally reliable73.7%on timeBOS→SFOBoston, MA (BOS) to San Francisco, CA (SFO)4,676 flights analyzedGenerally reliable71.5%on timeBOS→MCOBoston, MA (BOS) to Orlando, FL (MCO)4,606 flights analyzedVariable67.8%on timeBOS→CLTBoston, MA (BOS) to Charlotte, NC (CLT)4,017 flights analyzedVariable80.3%on timeBOS→EWRBoston, MA (BOS) to Newark, NJ (EWR)3,906 flights analyzedHigher disruption71.7%on timeBOS→DENBoston, MA (BOS) to Denver, CO (DEN)3,899 flights analyzedGenerally reliable75.3%on timeBOS→DFWBoston, MA (BOS) to Dallas/Fort Worth, TX (DFW)3,740 flights analyzedVariable73.0%on timeBOS→BWIBoston, MA (BOS) to Baltimore, MD (BWI)3,551 flights analyzedVariable76.7%on timeBOS→MIABoston, MA (BOS) to Miami, FL (MIA)3,417 flights analyzedGenerally reliable75.8%on time
Which airline was most reliable departing BOS?
Among qualifying BOS airline departure results, Allegiant Air had the highest on-time rate: 84.5% of 633 flights. Spirit Airlines was lowest at 62.1% across 2,325 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| JetBlue Airways | 37,487 | 70.0% | 19.2% | 2.5% |
| Republic Airways | 33,650 | 74.9% | 14.8% | 3.9% |
| Delta Air Lines | 26,419 | 75.0% | 15.0% | 2.0% |
| American Airlines | 16,933 | 76.0% | 14.7% | 2.6% |
| United Airlines | 12,917 | 76.9% | 14.3% | 1.9% |
| Southwest Airlines | 7,197 | 70.0% | 18.6% | 1.5% |
| Alaska Airlines | 2,486 | 69.9% | 16.5% | 1.2% |
| Spirit Airlines | 2,325 | 62.1% | 23.7% | 4.8% |
| Envoy Air | 2,013 | 77.8% | 14.5% | 2.2% |
| Frontier Airlines | 931 | 68.7% | 18.8% | 1.8% |
| Allegiant Air | 633 | 84.5% | 8.8% | 0.5% |
| Hawaiian Airlines | 91 | 65.9% | 12.1% | 2.2% |
Origin report, not airport-wide operations.
These figures summarize the reported scheduled passenger flights in the dataset, not every flight or every airport process.