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United Airlines

Is UA1577 delayed?

Each route and date is shown separately. Confirm that both airports match your booking.

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

Estimated arrivalLast reported

1 min early

This update may be out of date. Check with your airline.

Update time unavailable

Departure

San Francisco

SFO

Actual

Scheduled 18:55

Aug 19

Arrival

San Diego

SAN

Estimated

Scheduled 20:45

Aug 19

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Actual

Arrival · UTC

Scheduled
Estimated
Actual
Not available

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

Arrived

28 min early

Updated

Departure

Chicago

ORD

Actual

Scheduled 14:35

Aug 19

Arrival

San Francisco

SFO

Actual

Scheduled 17:23

Aug 19

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual

Arrival · UTC

Scheduled
Estimated
Actual
Route overview: San Francisco → San DiegoSFOSAN
Route overview
Route overview: Chicago → San FranciscoORDSFO
Route overview

Recent arrivals

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

  • SFO → SAN

    21 min early

  • ORD → SFO

    40 min late

  • SFO → SAN

    9 min early

  • ORD → SFO

    10 min late

  • ORD → SFO

    94 min late
Flight history and details

Aug 19, 2026 — Sep 18, 2026

Observed arrivals
42
Arrivals over 15 minutes late
9
Observed cancellations
0
Observed occurrences
58

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

UA1577 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 17, 2026ArrivedSan FranciscoSan Diego
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-21
Sep 17, 2026ArrivedChicagoSan Francisco
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40
Sep 16, 2026ArrivedSan FranciscoSan Diego
-9
Sep 16, 2026ArrivedChicagoSan Francisco
10
Sep 15, 2026ArrivedChicagoSan Francisco
94
Sep 14, 2026ArrivedSan FranciscoSan Diego
-3
Sep 14, 2026ArrivedChicagoSan Francisco
-5
Sep 13, 2026ArrivedSan FranciscoSan Diego
19
Sep 13, 2026ArrivedChicagoSan Francisco
-4
Sep 12, 2026ArrivedSan FranciscoSan Diego
-18
Sep 12, 2026ArrivedChicagoSan Francisco
-16
Sep 11, 2026ArrivedSan FranciscoSan Diego
0
Sep 11, 2026ArrivedChicagoSan Francisco
-15
Sep 10, 2026ArrivedSan FranciscoSan Diego
-3
Sep 10, 2026ArrivedChicagoSan Francisco
-6
Sep 9, 2026ArrivedSan FranciscoSan Diego
-17
Sep 9, 2026ArrivedChicagoSan Francisco
-7
Sep 8, 2026ArrivedSan FranciscoSan Diego
-17
Sep 8, 2026ArrivedChicagoSan Francisco
-7
Sep 7, 2026ArrivedSan FranciscoSan Diego
24
Sep 7, 2026ArrivedChicagoSan Francisco
-14
Sep 6, 2026ArrivedChicagoSan Francisco
128
Sep 5, 2026ArrivedSan FranciscoSan Diego
-14
Sep 5, 2026ArrivedChicagoSan Francisco
-12
Sep 4, 2026ArrivedSan FranciscoSan Diego
3
Sep 4, 2026ArrivedChicagoSan Francisco
-32
Sep 3, 2026ArrivedSan FranciscoSan Diego
-19
Sep 3, 2026ArrivedChicagoSan Francisco
7
Sep 2, 2026ArrivedSan FranciscoSan Diego
156
Sep 2, 2026ArrivedChicagoSan Francisco
-10
Sep 1, 2026ArrivedChicagoSan Francisco
12
Aug 31, 2026ArrivedChicagoSan Francisco
75
Aug 30, 2026ArrivedChicagoSan Francisco
84
Aug 29, 2026ArrivedSan FranciscoSan Diego
-10
Aug 29, 2026ArrivedChicagoSan Francisco
0
Aug 28, 2026ArrivedChicagoSan Francisco
-25
Aug 27, 2026ArrivedChicagoSan Francisco
-6
Aug 26, 2026ArrivedChicagoSan Francisco
-7
Aug 25, 2026ArrivedChicagoSan Francisco
-17
Aug 24, 2026ArrivedChicagoSan Francisco
49
Aug 23, 2026ArrivedChicagoSan Francisco
-12
Aug 19, 2026ArrivedChicagoSan Francisco
-28

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