OnTimeRoutes
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Delta Air Lines DFW to BOS on-time performance

Delta Air Lines nonstop flights from Dallas/Fort Worth to Boston · Aug 2025 – Jul 2026

On-time arrivals
76%
arrived < 15 min late
Cancelled
2.7%
23 flights
Avg arrival delay
23 min
95 min when late
Rank on route
#1 of 4
route average 67% on time

Key facts

  • Delta Air Lines flights on DFW to BOS arrived on time 76% of the time in Aug 2025 – Jul 2026.
  • 2.7% were cancelled, and 10% arrived an hour or more late.
  • That ranks #1 of 4 airlines on this route, which averaged 67% on time overall.
  • The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (38%).

On-time trend by month

50%75%100%July 2025: 73.3% on time, 2.3% cancelledJul ’25August 2025: 82.5% on time, 2.4% cancelledAug ’25September 2025: 64.6% on time, 2.5% cancelledSep ’25October 2025: 63.5% on time, 0.0% cancelledOct ’25November 2025: 81.7% on time, 0.0% cancelledNov ’25December 2025: 77.8% on time, 5.3% cancelledDec ’25January 2026: 87.5% on time, 11.1% cancelledJan ’26February 2026: 87.2% on time, 6.0% cancelledFeb ’26March 2026: 86.0% on time, 0.0% cancelledMar ’26April 2026: 75.0% on time, 0.0% cancelledApr ’26May 2026: 82.4% on time, 2.3% cancelledMay ’26June 2026: 80.0% on time, 1.1% cancelledJun ’26July 2026: 62.4% on time, 4.4% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Airline (crew, maintenance, cleaning, fueling)38%
  • Air traffic control & airport congestion26%
  • Late-arriving aircraft26%
  • Extreme weather9%
  • Security0%

Other airlines on DFW to BOS

Full DFW to BOS comparison →
Delta Air Lines on-time record across all routes →

863 Delta Air Lines flights tracked on this route; 23 cancelled, 3 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.