OnTimeRoutes
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Alaska Airlines IAD to SFO on-time performance

Alaska Airlines nonstop flights from Washington to San Francisco · Aug 2025 – Jul 2026

On-time arrivals
76%
arrived < 15 min late
Cancelled
0.0%
0 flights
Avg arrival delay
14 min
56 min when late
Rank on route
#2 of 2
route average 79% on time

Key facts

  • Alaska Airlines flights on IAD to SFO arrived on time 76% of the time in Aug 2025 – Jul 2026.
  • 0% were cancelled, and 11% arrived an hour or more late.
  • That ranks #2 of 2 airlines on this route, which averaged 79% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (72%).

On-time trend by month

50%75%100%July 2025: 61.7% on time, 1.6% cancelledJul ’25August 2025: 76.3% on time, 0.0% cancelledAug ’25
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft72%
  • Airline (crew, maintenance, cleaning, fueling)15%
  • Air traffic control & airport congestion14%
  • Extreme weather0%
  • Security0%

Other airlines on IAD to SFO

38 Alaska Airlines flights tracked on this route; 0 cancelled, 0 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.