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Flight records through . Security counts through .

Which IAD to PHX flight is punctual? United 1938, 5:50 pm.

72% on time across 92 flights in the last 3 months, 1.1% cancelled.

Find your flightIAD security

  • UA 1938

    72%

    on time

    5:50 pm

    1% cancelled

1 regular flight, June to August 2026.

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

United landed on time 84% of the time, Southwest 70%.

Flight records,

  • United

    84%

    on time

    0.9% cancelled

  • Southwest

    70%

    on time

    0.7% cancelled

When do the flights leave? One regular flight, at 5:50 pm.

UA 1938 was cancelled most often, 1% of the time.

Flight records,

  1. UA 1938 5:50 pm, 1% cancelled 72%

What time should I fly? The 8 am departures.

96% landed on time; at 6 pm, 58%. Tuesday was the best day, Friday the worst.

Flight records,

DepartsLanded on time
8 am96%
12 pm86%
4 pm75%
5 pm77%
6 pm58%

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.