OnTimeRoutes
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JetBlue DEN to BOS on-time performance

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

On-time arrivals
68%
arrived < 15 min late
Cancelled
3.1%
21 flights
Avg arrival delay
28 min
85 min when late
Rank on route
#3 of 4
route average 71% on time

Key facts

  • JetBlue flights on DEN to BOS arrived on time 68% of the time in Aug 2025 – Jul 2026.
  • 3.1% were cancelled, and 16% arrived an hour or more late.
  • That ranks #3 of 4 airlines on this route, which averaged 71% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (44%).

On-time trend by month

40%70%100%July 2025: 58.8% on time, 3.4% cancelledJul ’25August 2025: 79.3% on time, 1.1% cancelledAug ’25September 2025: 72.0% on time, 0.0% cancelledSep ’25October 2025: 69.2% on time, 0.0% cancelledOct ’25November 2025: 75.0% on time, 0.0% cancelledNov ’25December 2025: 76.4% on time, 1.8% cancelledDec ’25January 2026: 73.5% on time, 8.1% cancelledJan ’26February 2026: 60.5% on time, 11.6% cancelledFeb ’26March 2026: 63.8% on time, 0.0% cancelledMar ’26April 2026: 68.9% on time, 0.0% cancelledApr ’26May 2026: 76.8% on time, 0.0% cancelledMay ’26June 2026: 55.3% on time, 1.3% cancelledJun ’26July 2026: 52.6% on time, 10.9% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft44%
  • Airline (crew, maintenance, cleaning, fueling)31%
  • Air traffic control & airport congestion25%
  • Extreme weather0%
  • Security0%

Other airlines on DEN to BOS

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

686 JetBlue flights tracked on this route; 21 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.