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Flight records through . Security counts through .

Which SFO to ATL flight is punctual? Delta 570, 6 am.

87% on time across 92 flights in the last 3 months, never cancelled.

Find your flightSFO security
DepartsFlightOn time
6:00 amDL 57087%
9:20 pmUA 160383%
7:50 amDL 64082%
11:38 amDL 69382%
8:45 amUA 70278%
8:21 amUA 265576%
10:00 pmDL 51776%
1:45 pmDL 53164%
8 of 12 regular flights, ranked by arrivals on time, June to August 2026.

Which airline is most reliable? United, ahead of Delta.

United landed on time 85% of the time, Delta 80%.

Flight records,

  • United

    85%

    on time

    0.2% cancelled

  • Delta

    80%

    on time

    0.7% cancelled

When do the flights leave? 12 regular flights, 6 am to 11:59 pm.

F9 1448 was cancelled most often, 4% of the time.

Flight records,

  1. UA 2655 8:21 am, 0% cancelled 76%
  2. UA 702 8:45 am, 0% cancelled 78%
  3. UA 1603 9:20 pm, 0% cancelled 83%
  1. DL 570 6:00 am, 0% cancelled 87%
  2. DL 640 7:50 am, 0% cancelled 82%
  3. DL 693 11:38 am, 0% cancelled 82%
  4. DL 531 1:45 pm, 0% cancelled 64%
  5. DL 724 4:05 pm, 2% cancelled 63%
  6. DL 517 10:00 pm, 2% cancelled 76%
  7. DL 495 10:59 pm, 2% cancelled 52%
  8. DL 690 11:59 pm, 0% cancelled 58%

What time should I fly? The 6 am departures.

90% landed on time; at 4 pm, 59%. Tuesday was the best day, Sunday the worst.

Flight records,

DepartsLanded on time
6 am90%
7 am89%
8 am87%
9 am87%
10 am89%
11 am82%
12 pm84%
1 pm75%
2 pm74%
3 pm87%
4 pm59%
9 pm80%
10 pm68%
11 pm69%

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.