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Route on-time record

SFO to AUS: most on-time flights and the best time to fly

San Francisco (San Francisco International Airport) to Austin (Austin Bergstrom International Airport). 2,779 nonstop flights in Jun 2025 to May 2026, 77% arrived within 15 minutes and 0.9% were cancelled. The most reliable flight number was United 1107 at 7:00 AM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

SFO → AUS

San Francisco to Austin: 2,779 nonstop flights a year

On time (12 months)

77%

Cancelled

0.9%

avg delay 15 min

Best time to leave

Before 9 AM

94% on time vs 63% 9 AM to noon

Most reliable airline

United

83% chance on time

Check SFO to AUS 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 · United 1107

    7:00 AM → 12:34 PM3h 38m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    96%

    chance on time

    On time (history)
    97%
    Cancelled
    1.1%
    Avg arrival delay
    3 min
    • Arrived on time 97% of the time (260 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 94% on time; 9 AM to noon: 63%).
    • Departs inside SFO's trouble window: 61% of its 333 ground stops and delay programs started between 7 AM and 1 PM.
    • Lands inside AUS's trouble window: 79% of its 91 ground stops and delay programs started between 10 AM and 4 PM.

    Strong track record · 260 flights

    Find United 1107 fares Opens this date on Aviasales

  2. #2 · United 1807

    11:59 PM → 5:33 AM3h 34m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as United 577; its record covers all of them.

    89%

    chance on time

    On time (history)
    87%
    Cancelled
    0.0%
    Avg arrival delay
    6 min
    • Arrived on time 87% of the time (31 flights, Jun 2025 to May 2026).
    • Never cancelled in 31 scheduled flights.
    • Departs outside SFO's trouble window (7 AM to 1 PM, when 61% of its 333 ground stops and delay programs started).
    • Short track record (31 flights), so its score leans on the airline's record at this hour.

    Limited track record · 31 flights

    Find United 1807 fares Opens this date on Aviasales

  3. #3 · United 212

    6:27 PM → 12:13 AM3h 46m nonstop

    Local times, typical schedule. Last flown 2026-05-30. Same departure also flew as United 2332; its record covers all of them.

    88%

    chance on time

    On time (history)
    88%
    Cancelled
    0.4%
    Avg arrival delay
    8 min
    • Arrived on time 88% of the time (257 flights, Jun 2025 to May 2026).
    • Departs outside SFO's trouble window (7 AM to 1 PM, when 61% of its 333 ground stops and delay programs started).

    Strong track record · 257 flights

    Find United 212 fares Opens this date on Aviasales

  4. #4 · United 1176

    7:03 PM → 12:45 AM3h 42m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    84%

    chance on time

    On time (history)
    88%
    Cancelled
    0.0%
    Avg arrival delay
    8 min
    • Arrived on time 88% of the time (8 flights, Jun 2025 to May 2026).
    • Departs outside SFO's trouble window (7 AM to 1 PM, when 61% of its 333 ground stops and delay programs started).
    • Short track record (8 flights), so its score leans on the airline's record at this hour.

    Limited track record · 8 flights

    Find United 1176 fares Opens this date on Aviasales

  5. #5 · United 1116

    12:32 PM → 6:14 PM3h 41m nonstop

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

    82%

    chance on time

    On time (history)
    82%
    Cancelled
    0.7%
    Avg arrival delay
    11 min
    • Arrived on time 82% of the time (285 flights, Jun 2025 to May 2026).
    • Departs inside SFO's trouble window: 61% of its 333 ground stops and delay programs started between 7 AM and 1 PM.

    Strong track record · 285 flights

    Find United 1116 fares Opens this date on Aviasales

  6. #6 · United 1326

    8:50 AM → 2:36 PM3h 46m nonstop

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

    79%

    chance on time

    On time (history)
    76%
    Cancelled
    0.7%
    Avg arrival delay
    10 min
    • Arrived on time 76% of the time (139 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 94% on time; 9 AM to noon: 63%).
    • Departs inside SFO's trouble window: 61% of its 333 ground stops and delay programs started between 7 AM and 1 PM.
    • Lands inside AUS's trouble window: 79% of its 91 ground stops and delay programs started between 10 AM and 4 PM.

    Moderate track record · 139 flights

    Find United 1326 fares Opens this date on Aviasales

  7. #7 · United 287

    4:37 PM → 10:25 PM3h 48m nonstop

    Local times, typical schedule. Last flown 2026-04-29.

    77%

    chance on time

    On time (history)
    67%
    Cancelled
    0.0%
    Avg arrival delay
    26 min
    • Arrived on time 67% of the time (24 flights, Jun 2025 to May 2026).
    • Departs outside SFO's trouble window (7 AM to 1 PM, when 61% of its 333 ground stops and delay programs started).
    • 97% of its delay minutes came from the plane arriving late from an earlier flight.
    • Short track record (24 flights), so its score leans on the airline's record at this hour.

    Limited track record · 24 flights

    Find United 287 fares Opens this date on Aviasales

  8. #8 · United 1639

    10:45 AM → 4:22 PM3h 37m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    76%

    chance on time

    On time (history)
    62%
    Cancelled
    0.0%
    Avg arrival delay
    20 min
    • Arrived on time 62% of the time (21 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (9 AM to noon: 63% on time; Before 9 AM: 94%).
    • Departs inside SFO's trouble window: 61% of its 333 ground stops and delay programs started between 7 AM and 1 PM.
    • Short track record (21 flights), so its score leans on the airline's record at this hour.

    Limited track record · 21 flights

    Find United 1639 fares Opens this date on Aviasales

  9. #9 · United 373

    5:21 PM → 11:04 PM3h 43m nonstop

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

    75%

    chance on time

    On time (history)
    67%
    Cancelled
    0.0%
    Avg arrival delay
    23 min
    • Arrived on time 67% of the time (18 flights, Jun 2025 to May 2026).
    • Departs outside SFO's trouble window (7 AM to 1 PM, when 61% of its 333 ground stops and delay programs started).
    • 61% of its delay minutes came from the plane arriving late from an earlier flight.
    • Short track record (18 flights), so its score leans on the airline's record at this hour.

    Limited track record · 18 flights

    Find United 373 fares Opens this date on Aviasales

  10. #10 · United 1375

    5:10 PM → 10:55 PM3h 45m nonstop

    Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as United 2657; its record covers all of them.

    67%

    chance on time

    On time (history)
    52%
    Cancelled
    0.0%
    Avg arrival delay
    25 min
    • Arrived on time 52% of the time (42 flights, Jun 2025 to May 2026).
    • Never cancelled in 42 scheduled flights.
    • Departs outside SFO's trouble window (7 AM to 1 PM, when 61% of its 333 ground stops and delay programs started).
    • 69% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 42 flights

    Find United 1375 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • United Airlines83%

    1,644 flights · 84% on time as flown · 0.8% cancel

  • Alaska Airlines82%

    403 flights · 84% on time as flown · 1.0% cancel

  • SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)78%

    30 flights · 87% on time as flown · 0.7% cancel

  • Delta Air Lines63%

    407 flights · 61% on time as flown · 1.5% cancel

  • Southwest Airlines53%

    295 flights · 47% on time as flown · 0.3% cancel

On time by departure time

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

  • Before 9 AM94%

    643 flights · avg delay 5 min

  • 9 AM to noon63%

    400 flights · avg delay 23 min

  • Noon to 3 PM68%

    894 flights · avg delay 21 min

  • 3 to 6 PM69%

    279 flights · avg delay 21 min

  • 6 to 9 PM84%

    379 flights · avg delay 11 min

  • After 9 PM87%

    184 flights · avg delay 7 min

Best day: Saturday (87%). Worst: Thursday (78%).

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.

J
80
F
84
M
84
A
82
M
72
J
80
J
82
A
85
S
85
O
83
N
79
D
80

What delays this route

  • Late-arriving aircraft53%
  • Airline (crew, maintenance, boarding)29%
  • Air traffic control and airport volume18%

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

SFO to AUS questions

What time of day is best to fly SFO to AUS?
Before 9 AM: 94% of flights arrived on time, against 63% for departures 9 AM to noon. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
Which airline is most on time from SFO to AUS?
United, with a season-adjusted 83% chance of operating and arriving on time over 1,644 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 SFO to AUS?
May (72% on time); the best was August (85%), 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 SFO

Live status: FAA delays and ground stops