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ATIS Alerts Smart Flight Search

Find the flight least likely to be delayed

Beta

We rank real flight numbers by how often they flew and arrived on time over the last 12 months, adjusted for your travel month and departure time, then check nearby airports and calmer connections. US airlines and airports.

SAN → OAK

San Diego to Oakland: 3,190 nonstop flights a year

On time (12 months)

75%

Cancelled

1.2%

avg delay 13 min

Best time to leave

Before 9 AM

95% on time vs 58% after 9 PM

Most reliable airline

Spirit

79% chance on time

Check SAN to OAK fares

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. #1 · Southwest 1519

    6:30 AM → 8:10 AM1h 40m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    92%

    chance on time

    On time (history)
    95%
    Cancelled
    0.0%
    Avg arrival delay
    4 min
    • Arrived on time 95% of the time (55 flights, Jun 2025 to May 2026).
    • Never cancelled in 55 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 95% on time; After 9 PM: 58%).
    • Departs inside SAN's trouble window: 66% of its 164 ground stops and delay programs started between 6 AM and noon.

    Limited track record · 55 flights

    Find Southwest 1519 fares Opens this date on Aviasales

  2. #2 · Southwest 4595

    7:10 AM → 9:00 AM1h 50m nonstop

    Local times, typical schedule. Last flown 2026-04-06.

    92%

    chance on time

    On time (history)
    97%
    Cancelled
    0.0%
    Avg arrival delay
    2 min
    • Arrived on time 97% 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: 95% on time; After 9 PM: 58%).
    • Departs 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 4595 fares Opens this date on Aviasales

  3. #3 · Southwest 105

    8:15 AM → 9:55 AM1h 40m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    91%

    chance on time

    On time (history)
    97%
    Cancelled
    0.0%
    Avg arrival delay
    1 min
    • Arrived on time 97% of the time (31 flights, Jun 2025 to May 2026).
    • Never cancelled in 31 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 95% on time; After 9 PM: 58%).
    • Departs inside SAN's trouble window: 66% of its 164 ground stops and delay programs started between 6 AM and noon.

    Limited track record · 31 flights

    Find Southwest 105 fares Opens this date on Aviasales

  4. #4 · SkyWest 3075 · sold as United Express, Delta Connection, American Eagle or Alaska

    8:39 AM → 10:17 AM1h 38m nonstop

    Local times, typical schedule. Last flown 2026-05-12.

    88%

    chance on time

    On time (history)
    90%
    Cancelled
    0.0%
    Avg arrival delay
    6 min
    • Arrived on time 90% of the time (21 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 95% on time; After 9 PM: 58%).
    • Departs inside SAN's trouble window: 66% of its 164 ground stops and delay programs started between 6 AM and noon.
    • Short track record (21 flights), so its score leans on the airline's record at this hour.

    Limited track record · 21 flights

    Find 8:39 AM flight fares Opens this date on Aviasales

  5. #5 · Southwest 3785

    11:30 AM → 1:10 PM1h 40m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    82%

    chance on time

    On time (history)
    85%
    Cancelled
    1.8%
    Avg arrival delay
    7 min
    • Arrived on time 85% of the time (54 flights, Jun 2025 to May 2026).
    • Departs 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 3785 fares Opens this date on Aviasales

  6. #6 · Southwest 598

    11:45 AM → 1:25 PM1h 40m nonstop

    Local times, typical schedule. Last flown 2026-04-06.

    82%

    chance on time

    On time (history)
    91%
    Cancelled
    0.0%
    Avg arrival delay
    10 min
    • Arrived on time 91% of the time (23 flights, Jun 2025 to May 2026).
    • Departs inside SAN's trouble window: 66% of its 164 ground stops and delay programs started between 6 AM and noon.
    • 60% of its delay minutes came from the plane arriving late from an earlier flight.
    • Short track record (23 flights), so its score leans on the airline's record at this hour.

    Limited track record · 23 flights

    Find Southwest 598 fares Opens this date on Aviasales

  7. #7 · Southwest 2045

    10:00 AM → 11:35 AM1h 35m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 1928; its record covers all of them.

    79%

    chance on time

    On time (history)
    79%
    Cancelled
    0.0%
    Avg arrival delay
    14 min
    • Arrived on time 79% of the time (63 flights, Jun 2025 to May 2026).
    • Never cancelled in 63 scheduled flights.
    • Departs inside SAN's trouble window: 66% of its 164 ground stops and delay programs started between 6 AM and noon.
    • 66% of its delay minutes came from the plane arriving late from an earlier flight.

    Moderate track record · 63 flights

    Find Southwest 2045 fares Opens this date on Aviasales

  8. #8 · Southwest 1303

    1:15 PM → 2:55 PM1h 40m nonstop

    Local times, typical schedule. Last flown 2026-05-29. Same departure also flew as Southwest 2753; its record covers all of them.

    78%

    chance on time

    On time (history)
    79%
    Cancelled
    1.5%
    Avg arrival delay
    14 min
    • Arrived on time 79% of the time (66 flights, Jun 2025 to May 2026).
    • Departs outside SAN's trouble window (6 AM to noon, when 66% of its 164 ground stops and delay programs started).

    Moderate track record · 66 flights

    Find Southwest 1303 fares Opens this date on Aviasales

  9. #9 · Southwest 2885

    6:00 PM → 7:40 PM1h 40m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    77%

    chance on time

    On time (history)
    84%
    Cancelled
    0.0%
    Avg arrival delay
    8 min
    • Arrived on time 84% of the time (38 flights, Jun 2025 to May 2026).
    • Never cancelled in 38 scheduled flights.
    • Departs outside SAN's trouble window (6 AM to noon, when 66% of its 164 ground stops and delay programs started).
    • Short track record (38 flights), so its score leans on the airline's record at this hour.

    Limited track record · 38 flights

    Find Southwest 2885 fares Opens this date on Aviasales

  10. #10 · SkyWest 3076 · sold as United Express, Delta Connection, American Eagle or Alaska

    1:00 PM → 2:38 PM1h 38m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    73%

    chance on time

    On time (history)
    68%
    Cancelled
    0.0%
    Avg arrival delay
    20 min
    • Arrived on time 68% of the time (40 flights, Jun 2025 to May 2026).
    • Never cancelled in 40 scheduled flights.
    • Departs outside SAN's trouble window (6 AM to noon, when 66% of its 164 ground stops and delay programs started).
    • Short track record (40 flights), so its score leans on the airline's record at this hour.

    Limited track record · 40 flights

    Find 1:00 PM flight fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Spirit Airlines79%

    73 flights · 84% on time as flown · 0.8% cancel

  • Southwest Airlines74%

    2,985 flights · 75% on time as flown · 1.2% cancel

  • SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)72%

    132 flights · 68% on time as flown · 1.0% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

  • Before 9 AM95%

    652 flights · avg delay 3 min

  • 9 AM to noon83%

    572 flights · avg delay 9 min

  • Noon to 3 PM72%

    570 flights · avg delay 15 min

  • 3 to 6 PM66%

    579 flights · avg delay 18 min

  • 6 to 9 PM61%

    657 flights · avg delay 21 min

  • After 9 PM58%

    160 flights · avg delay 20 min

Best day: Tuesday (86%). Worst: Sunday (70%).

Smarter routing

Nearby airports that run more on time

  • SAN → SJC 78% chance on time

    San Diego International Airport to Norman Y. Mineta San Jose International Airport · 4,980 flights a year · 29 mi from your airports · yours: 74%

    Rank flightsFares

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