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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)

Arrived

57 min late

Official source · Updated

Departure

San Francisco

SFO

Scheduled

Sep 20

Arrival

San Diego

SAN

Actual

Scheduled 20:55

Sep 20

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual
Not available

Arrival · UTC

Scheduled
Estimated
Not available
Actual

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

Arrived

2 min early

Official source · Updated

Departure

Chicago

ORD

Scheduled

Sep 20

Arrival

San Francisco

SFO

Actual

Scheduled 17:18

Sep 20

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual
Not available

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.

  • ORD → SFO

    76 min late

  • SFO → SAN

    57 min late

  • ORD → SFO

    2 min early

  • SFO → SAN

    11 min early

  • ORD → SFO

    45 min late
Flight history and details

Aug 23, 2026 — Sep 22, 2026

Observed arrivals
48
Arrivals over 15 minutes late
12
Observed cancellations
0
Observed occurrences
59

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 21, 2026ArrivedChicagoSan Francisco
View this flight’s market
76
Sep 20, 2026ArrivedSan FranciscoSan Diego
57
Sep 20, 2026ArrivedChicagoSan Francisco
-2
Sep 19, 2026ArrivedSan FranciscoSan Diego
-11
Sep 19, 2026ArrivedChicagoSan Francisco
45
Sep 18, 2026ArrivedSan FranciscoSan Diego
7
Sep 18, 2026ArrivedChicagoSan Francisco
-17
Sep 17, 2026ArrivedSan FranciscoSan Diego
-21
Sep 17, 2026ArrivedChicagoSan Francisco
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

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