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Route Reliability

Oakland → San Diego

OAK–SAN · 446 miles · Oakland International Airport to San Diego International Airport

72
Usually Fine
WanderNerd Reliability Score
70%
Arrive within 15 minutes
13 min
Average arrival delay
1.0%
Cancelled
3,220
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.Southwest Airlines70%2,985 flights
  2. 2.Alaska Airlines66%162 flights

Not enough history to rank: Spirit Airlines (73 flights). We rank airlines only after 100 flights on the route.

What the data says

Morning flights do better here.

OAK–SAN flights departing between 3–6 AM arrived on time 95% of the time, versus 52% between 9 PM–12 AM.

Thursdays have been rough.

OAK–SAN flights arrived on time 80% of the time on Saturdays and just 61% on Thursdays. That gap is worth planning around.

Southwest Airlines has a slight edge here.

Southwest Airlines arrived on time 70% of the time on this route; Alaska Airlines managed 66%.

Slipping a little lately.

OAK–SAN flights arrived on time 65% of the time over the last three months in the data, compared with 71% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon70%(509 flights)
  • Tue75%(415 flights)
  • Wed76%(423 flights)
  • Thu61%(488 flights)
  • Fri63%(506 flights)
  • Sat80%(333 flights)
  • Sun70%(511 flights)
On-time by departure window
  • 3–6 AM95%(64 flights)
  • 6–9 AM90%(772 flights)
  • 9 AM–12 PM69%(597 flights)
  • 12–3 PM71%(541 flights)
  • 3–6 PM59%(612 flights)
  • 6–9 PM54%(549 flights)
  • 9 PM–12 AM52%(50 flights)
On-time trend by month
61%
May

Jun 81% → May 61% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202581%283
July 202575%285
August 202573%282
September 202573%273
October 202570%270
November 202565%248
December 202559%257
January 202679%219
February 202674%219
March 202672%227
April 202661%263
May 202661%359

Same trip, other airports

Keep nerding

Based on 3,220 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.