Alaska Airlines IAD to SAN on-time performance
Alaska Airlines nonstop flights from Washington to San Diego · Aug 2025 – Jul 2026
On-time arrivals
75%
arrived < 15 min late
Cancelled
0.6%
2 flights
Avg arrival delay
13 min
46 min when late
Rank on route
#2 of 2
route average 84% on time
Key facts
- Alaska Airlines flights on IAD to SAN arrived on time 75% of the time in Aug 2025 – Jul 2026.
- 0.6% were cancelled, and 4% arrived an hour or more late.
- That ranks #2 of 2 airlines on this route, which averaged 84% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (45%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion45%
- Late-arriving aircraft36%
- Airline (crew, maintenance, cleaning, fueling)11%
- Extreme weather7%
- Security1%
Other airlines on IAD to SAN
- United Airlines88% on time · 8 min avg delay
Full IAD to SAN comparison →
Alaska Airlines on-time record across all routes →
361 Alaska Airlines flights tracked on this route; 2 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.