Route on-time record
OAK to SAN: most on-time flights and the best time to fly
Oakland (Oakland San Francisco Bay Airport) to San Diego (San Diego International Airport). 3,195 nonstop flights in Jun 2025 to May 2026, 69% arrived within 15 minutes and 1.0% were cancelled. The most reliable flight number was SkyWest 3074 at 6:02 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
OAK → SAN
Oakland to San Diego: 3,195 nonstop flights a year
On time (12 months)
69%
Cancelled
1.0%
avg delay 17 min
Best time to leave
Before 9 AM
90% on time vs 52% 6 to 9 PM
Most reliable airline
SkyWest
71% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · SkyWest 3074 · sold as United Express, Delta Connection, American Eagle or Alaska
6:02 AM → 7:35 AM1h 29m nonstop
Local times, typical schedule. Last flown 2026-05-31.
91%
chance on time
- On time (history)
- 95%
- Cancelled
- 2.5%
- Avg arrival delay
- 4 min
- Arrived on time 95% of the time (39 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 6 to 9 PM: 52%).
- Lands inside SAN's trouble window: 66% of its 164 ground stops and delay programs started between 6 AM and noon.
- Short track record (39 flights), so its score leans on the airline's record at this hour.
Limited track record · 39 flights
Find 6:02 AM flight fares Opens this date on Aviasales#2 · Southwest 935
7:00 AM → 8:30 AM1h 30m nonstop
Local times, typical schedule. Last flown 2026-05-30.
89%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 1 min
- Arrived on time 100% of the time (24 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 6 to 9 PM: 52%).
- Lands inside SAN's trouble window: 66% of its 164 ground stops and delay programs started between 6 AM and noon.
- Short track record (24 flights), so its score leans on the airline's record at this hour.
Limited track record · 24 flights
Find Southwest 935 fares Opens this date on Aviasales#3 · Southwest 1229
6:05 AM → 7:35 AM1h 30m nonstop
Local times, typical schedule. Last flown 2026-05-31.
88%
chance on time
- On time (history)
- 89%
- Cancelled
- 1.8%
- Avg arrival delay
- 5 min
- Arrived on time 89% of the time (54 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 6 to 9 PM: 52%).
- Lands inside SAN's trouble window: 66% of its 164 ground stops and delay programs started between 6 AM and noon.
- Short track record (54 flights), so its score leans on the airline's record at this hour.
Limited track record · 54 flights
Find Southwest 1229 fares Opens this date on Aviasales#4 · Southwest 4088
6:25 AM → 7:55 AM1h 30m nonstop
Local times, typical schedule. Last flown 2026-04-06.
85%
chance on time
- On time (history)
- 85%
- Cancelled
- 0.0%
- Avg arrival delay
- 10 min
- Arrived on time 85% of the time (33 flights, Jun 2025 to May 2026).
- Never cancelled in 33 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 6 to 9 PM: 52%).
- Lands inside SAN's trouble window: 66% of its 164 ground stops and delay programs started between 6 AM and noon.
Limited track record · 33 flights
Find Southwest 4088 fares Opens this date on Aviasales#5 · Southwest 3669
8:00 AM → 9:30 AM1h 30m nonstop
Local times, typical schedule. Last flown 2026-04-06.
81%
chance on time
- On time (history)
- 85%
- Cancelled
- 0.0%
- Avg arrival delay
- 10 min
- Arrived on time 85% of the time (33 flights, Jun 2025 to May 2026).
- Never cancelled in 33 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 6 to 9 PM: 52%).
- Lands inside SAN's trouble window: 66% of its 164 ground stops and delay programs started between 6 AM and noon.
Limited track record · 33 flights
Find Southwest 3669 fares Opens this date on Aviasales#6 · Southwest 2310
12:10 PM → 1:40 PM1h 30m nonstop
Local times, typical schedule. Last flown 2026-05-31.
77%
chance on time
- On time (history)
- 78%
- Cancelled
- 0.0%
- Avg arrival delay
- 10 min
- Arrived on time 78% of the time (54 flights, Jun 2025 to May 2026).
- Never cancelled in 54 scheduled flights.
- Short track record (54 flights), so its score leans on the airline's record at this hour.
Limited track record · 54 flights
Find Southwest 2310 fares Opens this date on Aviasales#7 · Southwest 4618
3:40 PM → 5:10 PM1h 30m nonstop
Local times, typical schedule. Last flown 2026-04-06.
70%
chance on time
- On time (history)
- 80%
- Cancelled
- 0.0%
- Avg arrival delay
- 12 min
- Arrived on time 80% of the time (15 flights, Jun 2025 to May 2026).
- Short track record (15 flights), so its score leans on the airline's record at this hour.
Limited track record · 15 flights
Find Southwest 4618 fares Opens this date on Aviasales#8 · SkyWest 3075 · sold as United Express, Delta Connection, American Eagle or Alaska
10:57 AM → 12:26 PM1h 29m nonstop
Local times, typical schedule. Last flown 2026-05-12.
69%
chance on time
- On time (history)
- 67%
- Cancelled
- 0.0%
- Avg arrival delay
- 18 min
- Arrived on time 67% of the time (21 flights, Jun 2025 to May 2026).
- Short track record (21 flights), so its score leans on the airline's record at this hour.
Limited track record · 21 flights
Find 10:57 AM flight fares Opens this date on Aviasales#9 · Southwest 1357
12:25 PM → 1:55 PM1h 30m nonstop
Local times, typical schedule. Last flown 2026-04-05.
68%
chance on time
- On time (history)
- 67%
- Cancelled
- 4.0%
- Avg arrival delay
- 18 min
- Arrived on time 67% of the time (24 flights, Jun 2025 to May 2026).
- Short track record (24 flights), so its score leans on the airline's record at this hour.
Limited track record · 24 flights
Find Southwest 1357 fares Opens this date on Aviasales#10 · Southwest 855
10:10 AM → 11:40 AM1h 30m nonstop
Local times, typical schedule. Last flown 2026-05-30.
68%
chance on time
- On time (history)
- 88%
- Cancelled
- 0.0%
- Avg arrival delay
- 7 min
- Arrived on time 88% of the time (8 flights, Jun 2025 to May 2026).
- Lands inside SAN's trouble window: 66% of its 164 ground stops and delay programs started between 6 AM and noon.
- Short track record (8 flights), so its score leans on the airline's record at this hour.
Limited track record · 8 flights
Find Southwest 855 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)71%
137 flights · 67% on time as flown · 0.9% cancel
- Spirit Airlines70%
73 flights · 75% on time as flown · 0.7% cancel
- Southwest Airlines68%
2,985 flights · 69% on time as flown · 1.0% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM90%
845 flights · avg delay 6 min
- 9 AM to noon67%
586 flights · avg delay 15 min
- Noon to 3 PM69%
544 flights · avg delay 17 min
- 3 to 6 PM58%
618 flights · avg delay 22 min
- 6 to 9 PM52%
549 flights · avg delay 28 min
Best day: Saturday (83%). Worst: Friday (69%).
Smarter routing
Nearby airports that run more on time
SJC → SAN 73% chance on time
Norman Y. Mineta San Jose International Airport to San Diego International Airport · 4,990 flights a year · 29 mi from your airports · yours: 68%
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Late-arriving aircraft44%
- Air traffic control and airport volume29%
- Airline (crew, maintenance, boarding)25%
- Severe weather1%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
OAK to SAN questions
- What time of day is best to fly OAK to SAN?
- Before 9 AM: 90% of flights arrived on time, against 52% for departures 6 to 9 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from OAK to SAN?
- SkyWest, with a season-adjusted 71% chance of operating and arriving on time over 137 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on OAK to SAN?
- May (71% on time); the best was January (84%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from OAK
- SAN to OAK (return)
- OAK to LAS 80%
- OAK to BUR 82%
- OAK to SNA 86%
- OAK to LAX 81%
- OAK to PHX 78%
- OAK to SEA 77%
- OAK to SLC 89%
- OAK to LGB 87%
- OAK to DEN 73%
- OAK to ONT 83%
- OAK to PDX 81%
- OAK to HNL 80%
Live status: FAA delays and ground stops