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Flight records through . Security counts through .

Which SFO to IAD flight is punctual? United 2111, 11:05 pm.

83% on time across 42 flights in the last 3 months, never cancelled.

Find your flightSFO security
DepartsFlightOn time
11:05 pmUA 211183%
4:34 pmUA 145382%
8:10 amUA 59976%
11:05 pmUA 108376%
8:10 amUA 184972%
12:35 pmUA 227471%
9:30 pmUA 35770%
10:35 pmUA 283770%
8 of 11 regular flights, ranked by arrivals on time, June to August 2026.

When do the flights leave? 11 regular flights, 8:10 am to 11:05 pm.

UA 336 was cancelled most often, 1% of the time.

Flight records,

  1. UA 1849 8:10 am, 0% cancelled 72%
  2. UA 599 8:10 am, 0% cancelled 76%
  3. UA 336 10:50 am, 1% cancelled 67%
  4. UA 2274 12:35 pm, 0% cancelled 71%
  5. UA 1791 1:15 pm, 0% cancelled 67%
  6. UA 755 1:15 pm, 0% cancelled 48%
  7. UA 1453 4:34 pm, 0% cancelled 82%
  8. UA 357 9:30 pm, 0% cancelled 70%
  9. UA 2837 10:35 pm, 0% cancelled 70%
  10. UA 1083 11:05 pm, 0% cancelled 76%
  11. UA 2111 11:05 pm, 0% cancelled 83%

What time should I fly? The 6 am departures.

98% landed on time; at 2 pm, 57%. Tuesday was the best day, Monday the worst.

Flight records,

DepartsLanded on time
6 am98%
8 am82%
10 am74%
11 am82%
12 pm75%
1 pm76%
2 pm57%
4 pm86%
9 pm88%
10 pm81%
11 pm86%

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.