Airports AirportPace Search

Flight records through . Security counts through .

Which SFO to DEN flight is punctual? United 1479, 5 am.

97% on time across 92 flights in the last 3 months, never cancelled.

Find your flightSFO security
DepartsFlightOn time
5:00 amUA 147997%
6:20 amWN 470396%
5:10 amWN 142496%
6:15 amUA 123392%
8:45 amUA 146990%
7:56 pmUA 201989%
6:00 amF9 123086%
6:56 pmUA 243685%
8 of 24 regular flights, ranked by arrivals on time, June to August 2026.

Which airline is most reliable? United, by a distance.

United landed on time 82% of the time, Frontier 68%.

Flight records,

  • United

    82%

    on time

    0.2% cancelled

  • Frontier

    68%

    on time

    1.2% cancelled

  • Southwest

    58%

    on time

    0.8% cancelled

When do the flights leave? 24 regular flights, 5 am to 9:39 pm.

WN 3642 was cancelled most often, 5% of the time.

Flight records,

  1. UA 1479 5:00 am, 0% cancelled 97%
  2. UA 1233 6:15 am, 0% cancelled 92%
  3. UA 1758 6:15 am, 4% cancelled 80%
  4. UA 2348 8:31 am, 0% cancelled 69%
  5. UA 1469 8:45 am, 0% cancelled 90%
  6. UA 1604 10:40 am, 0% cancelled 56%
  7. UA 2274 10:43 am, 0% cancelled 52%
  8. UA 540 12:43 pm, 0% cancelled 62%
  9. UA 1596 2:20 pm, 0% cancelled 52%
  10. UA 1430 4:10 pm, 0% cancelled 66%
  11. UA 1214 5:30 pm, 0% cancelled 82%
  12. UA 2436 6:56 pm, 0% cancelled 85%
  13. UA 2019 7:56 pm, 0% cancelled 89%
  14. UA 301 9:00 pm, 1% cancelled 75%
  1. F9 1230 6:00 am, 3% cancelled 86%
  2. F9 1094 12:38 pm, 0% cancelled 20%
  3. F9 3440 9:39 pm, 0% cancelled 29%
  1. WN 1424 5:10 am, 0% cancelled 96%
  2. WN 4703 6:20 am, 0% cancelled 96%
  3. WN 4284 10:00 am, 3% cancelled 11%
  4. WN 3551 1:30 pm, 0% cancelled 17%
  5. WN 3641 2:35 pm, 0% cancelled 9%
  6. WN 4813 3:20 pm, 0% cancelled 25%
  7. WN 3642 7:20 pm, 5% cancelled 46%

What time should I fly? The 5 am departures.

95% landed on time; at 3 pm, 36%. Saturday was the best day, Monday the worst.

Flight records,

DepartsLanded on time
5 am95%
6 am92%
7 am83%
8 am83%
9 am63%
10 am52%
11 am67%
12 pm60%
1 pm51%
2 pm58%
3 pm36%
4 pm70%
5 pm62%
6 pm84%
7 pm70%
8 pm84%
9 pm68%

When is SFO security busiest? 7 am, then 9 am to noon.

Calmest around 4 pm. San Francisco security, hour by hour.

Security counts,

4a8a12p4p8p
Mon
Tue
Wed
Thu
Fri
Sat
Sun
MonTueWedThuFriSatSun
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p

Thursday, 10 am

5,960

people screened, all terminals.