OnTimeRoutes
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JetBlue SAN to BOS on-time performance

JetBlue nonstop flights from San Diego to Boston · Aug 2025 – Jul 2026

On-time arrivals
78%
arrived < 15 min late
Cancelled
2.0%
18 flights
Avg arrival delay
22 min
98 min when late
Rank on route
#2 of 4
route average 77% on time

Key facts

  • JetBlue flights on SAN to BOS arrived on time 78% of the time in Aug 2025 – Jul 2026.
  • 2% were cancelled, and 11% arrived an hour or more late.
  • That ranks #2 of 4 airlines on this route, which averaged 77% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (33%).

On-time trend by month

50%75%100%July 2025: 73.0% on time, 0.0% cancelledJul ’25August 2025: 88.5% on time, 1.1% cancelledAug ’25September 2025: 75.4% on time, 1.7% cancelledSep ’25October 2025: 78.7% on time, 0.0% cancelledOct ’25November 2025: 76.6% on time, 1.3% cancelledNov ’25December 2025: 83.3% on time, 1.6% cancelledDec ’25January 2026: 81.8% on time, 3.5% cancelledJan ’26February 2026: 76.9% on time, 8.8% cancelledFeb ’26March 2026: 75.0% on time, 0.0% cancelledMar ’26April 2026: 75.9% on time, 1.2% cancelledApr ’26May 2026: 89.0% on time, 0.0% cancelledMay ’26June 2026: 77.6% on time, 1.2% cancelledJun ’26July 2026: 62.2% on time, 5.6% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft33%
  • Airline (crew, maintenance, cleaning, fueling)31%
  • Air traffic control & airport congestion28%
  • Extreme weather7%
  • Security0%

Other airlines on SAN to BOS

Full SAN to BOS comparison →
JetBlue on-time record across all routes →

919 JetBlue flights tracked on this route; 18 cancelled, 4 diverted.

Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.