OAK to SAN flight delays & on-time performance
Nonstop flights from Oakland San Francisco Bay Airport to San Diego International Airport · 446 miles · Aug 2025 – Jul 2026
- SAN: Airport closed. Closed, expected to reopen Oct 11 at 13:00 UTC.
On-time arrivals
65%
arrived < 15 min late
Cancelled
0.9%
28 flights
Avg arrival delay
19 min
49 min when late
Airlines
3
3,214 flights tracked
Key facts
- Flights from Oakland (OAK) to San Diego (SAN) arrived on time 65% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.9% were cancelled, and 9% arrived an hour or more late.
- SkyWest Airlines was the most punctual airline here (68% on time); Southwest Airlines was the least (65%).
- Departures scheduled around 6am did best (92% on time); around 7pm did worst (41%).
- Saturday was the most reliable day to fly (79% on time) and Friday the least (55%).
- The largest source of delay minutes was late-arriving aircraft (43%).
Which airline is most on time from OAK to SAN?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Spirit Airlines | 79% | 0.0% | 16 min | 7.9% | 38 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 68% | 1.1% | 18 min | 10.1% | 270 |
| Southwest Airlines | 65% | 0.9% | 19 min | 9.0% | 2,906 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am92%366 flights
- 7am90%188 flights
- 8am82%238 flights
- 9am82%133 flights
- 10am62%349 flights
- 11am62%142 flights
- 12pm63%225 flights
- 1pm80%91 flights
- 2pm52%259 flights
- 3pm63%269 flights
- 4pm51%163 flights
- 5pm47%150 flights
- 6pm45%229 flights
- 7pm41%110 flights
- 8pm49%213 flights
- 9pm48%61 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday63%0.6% cancelled
- Tuesday74%1.2% cancelled
- Wednesday72%0.9% cancelled
- Thursday57%1.0% cancelled
- Friday55%1.0% cancelled
- Saturday79%0.6% cancelled
- Sunday63%0.8% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft43%
- Air traffic control & airport congestion31%
- Airline (crew, maintenance, cleaning, fueling)25%
- Extreme weather1%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Air traffic control & airport congestion36%
- Airline (crew, maintenance, cleaning, fueling)32%
- Extreme weather32%
- Security0%
OAK to SAN: common questions
- How often are OAK to SAN flights on time?
- 65% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Oakland to San Diego cancelled?
- 0.9% of scheduled flights were cancelled (28 of 3,214).
- How long are typical delays?
- Across all flights the average arrival delay was 19 min (early arrivals count as zero). Flights that were late arrived 49 min behind schedule on average, and 9.1% of flights were an hour or more late.
- How long is taxi time at OAK?
- Flights on this route spent 16 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SAN to OAK — 74% on time
More flights from Oakland
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: OAK → SAN, nonstop flights by US airlines that report to the DOT. How we calculate this.