OnTimeRoutes
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Delta Air Lines SFO to AUS on-time performance

Delta Air Lines nonstop flights from San Francisco to Austin · Aug 2025 – Jul 2026

On-time arrivals
63%
arrived < 15 min late
Cancelled
1.5%
7 flights
Avg arrival delay
31 min
81 min when late
Rank on route
#4 of 5
route average 74% on time

Key facts

  • Delta Air Lines flights on SFO to AUS arrived on time 63% of the time in Aug 2025 – Jul 2026.
  • 1.5% were cancelled, and 14% arrived an hour or more late.
  • That ranks #4 of 5 airlines on this route, which averaged 74% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (51%).

On-time trend by month

20%60%100%July 2025: 38.7% on time, 0.0% cancelledJul ’25August 2025: 58.6% on time, 3.2% cancelledAug ’25September 2025: 66.7% on time, 0.0% cancelledSep ’25October 2025: 55.2% on time, 6.5% cancelledOct ’25November 2025: 60.0% on time, 0.0% cancelledNov ’25December 2025: 61.3% on time, 0.0% cancelledDec ’25January 2026: 65.5% on time, 6.5% cancelledJan ’26February 2026: 67.9% on time, 0.0% cancelledFeb ’26March 2026: 86.7% on time, 3.2% cancelledMar ’26April 2026: 54.2% on time, 0.0% cancelledApr ’26May 2026: 67.2% on time, 1.6% cancelledMay ’26June 2026: 55.0% on time, 0.0% cancelledJun ’26July 2026: 65.6% on time, 0.0% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft51%
  • Airline (crew, maintenance, cleaning, fueling)29%
  • Air traffic control & airport congestion14%
  • Extreme weather6%
  • Security0%

Other airlines on SFO to AUS

Full SFO to AUS comparison →
Delta Air Lines on-time record across all routes →

474 Delta Air Lines flights tracked on this route; 7 cancelled, 1 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.