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United Airlines

Is UA2129 delayed?

Service date: · Scheduled departure date (America/Los_Angeles)

Arrived

16 min early

Updated

Departure

San Diego

SAN

Actual

Scheduled 21:45

Aug 28

Arrival

Dulles

IAD

Actual

Scheduled 05:41

Aug 29

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Actual

Arrival · UTC

Scheduled
Estimated
Actual
Route overview: San Diego → DullesSANIAD
Route overview

Recent arrivals

Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.

  • SAN → IAD

    12 min early

  • SAN → IAD

    9 min early

  • SAN → IAD

    21 min early

  • SAN → IAD

    8 min late

  • SAN → IAD

    30 min early
Flight history and details

Aug 18, 2026 — Sep 17, 2026

Observed arrivals
29
Arrivals over 15 minutes late
3
Observed cancellations
0
Observed occurrences
29

Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.

How flight status works

UA2129 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 16, 2026ArrivedSan DiegoDulles
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-12
Sep 15, 2026ArrivedSan DiegoDulles
-9
Sep 14, 2026ArrivedSan DiegoDulles
-21
Sep 13, 2026ArrivedSan DiegoDulles
8
Sep 12, 2026ArrivedSan DiegoDulles
-30
Sep 11, 2026ArrivedSan DiegoDulles
-24
Sep 10, 2026ArrivedSan DiegoDulles
-26
Sep 9, 2026ArrivedSan DiegoDulles
6
Sep 8, 2026ArrivedSan DiegoDulles
-19
Sep 7, 2026ArrivedSan DiegoDulles
7
Sep 6, 2026ArrivedSan DiegoDulles
-23
Sep 5, 2026ArrivedSan DiegoDulles
-28
Sep 4, 2026ArrivedSan DiegoDulles
48
Sep 3, 2026ArrivedSan DiegoDulles
-34
Sep 2, 2026ArrivedSan DiegoDulles
-18
Sep 1, 2026ArrivedSan DiegoDulles
-35
Aug 31, 2026ArrivedSan DiegoDulles
-18
Aug 30, 2026ArrivedSan DiegoDulles
14
Aug 29, 2026ArrivedSan DiegoDulles
-21
Aug 28, 2026ArrivedSan DiegoDulles
-16
Aug 27, 2026ArrivedSan DiegoDulles
-13
Aug 26, 2026ArrivedSan DiegoDulles
-24
Aug 25, 2026ArrivedSan DiegoDulles
-25
Aug 24, 2026ArrivedSan DiegoDulles
8
Aug 23, 2026ArrivedSan DiegoDulles
-7
Aug 22, 2026ArrivedSan DiegoDulles
34
Aug 21, 2026ArrivedSan DiegoDulles
-11
Aug 20, 2026ArrivedSan DiegoDulles
45
Aug 19, 2026ArrivedSan DiegoDulles
-18

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