Airports AirportPace Search

Flight records through . Security counts through .

Which IAD to SDF flight is punctual? United 3526, 8:31 am.

84% on time across 71 flights in the last 3 months, 2.8% cancelled.

Find your flightIAD security
DepartsFlightOn time
8:31 amUA 352684%
5:25 pmUA 351883%
12:48 pmUA 398080%
5:25 pmUA 353877%
5:25 pmUA 357062%
5 of 5 regular flights, ranked by arrivals on time, June to August 2026.

When do the flights leave? 5 regular flights, 8:31 am to 5:25 pm.

UA 3538 was cancelled most often, 4% of the time.

Flight records,

  1. UA 3526 8:31 am, 3% cancelled 84%
  2. UA 3980 12:48 pm, 0% cancelled 80%
  3. UA 3518 5:25 pm, 0% cancelled 83%
  4. UA 3538 5:25 pm, 4% cancelled 77%
  5. UA 3570 5:25 pm, 0% cancelled 62%

What time should I fly? The 1 pm departures.

89% landed on time; at 7 pm, 80%. Tuesday was the best day, Monday the worst.

Flight records,

DepartsLanded on time
8 am86%
12 pm81%
1 pm89%
5 pm80%
7 pm80%

When is IAD security busiest? 3 to 4 pm daily.

Calmest around 9 am. Washington IAD 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, 4 pm

4,000

people screened, all terminals.