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United Airlines

Is UA2309 delayed?

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

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

Arrived

7 min early

Updated

Departure

San Diego

SAN

Actual

Scheduled 11:20

Aug 24

Arrival

San Francisco

SFO

Actual

Scheduled 13:06

Aug 24

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Actual

Arrival · UTC

Scheduled
Estimated
Actual

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

Estimated arrivalLast reported

9 min late

This update may be out of date.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

Update time unavailable

Departure

Denver

DEN

Actual

Scheduled 07:43

Aug 24

Arrival

San Diego

SAN

Estimated

Scheduled 09:05

Aug 24

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Actual

Arrival · UTC

Scheduled
Estimated
Actual
Not available
Route overview: San Diego → San FranciscoSANSFO
Route overview
Route overview: Denver → San DiegoDENSAN
Route overview

Recent arrivals

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

  • SAN → SFO

    14 min early

  • DEN → SAN

    1 min early

  • SAN → SFO

    52 min late

  • DEN → SAN

    11 min early

  • SAN → SFO

    31 min late
Flight history and details

Aug 21, 2026 — Sep 20, 2026

Observed arrivals
52
Arrivals over 15 minutes late
9
Observed cancellations
0
Observed occurrences
60

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

UA2309 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 19, 2026ArrivedSan DiegoSan Francisco
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-14
Sep 19, 2026ArrivedDenverSan Diego
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-1
Sep 18, 2026ArrivedSan DiegoSan Francisco
52
Sep 18, 2026ArrivedDenverSan Diego
-11
Sep 17, 2026ArrivedSan DiegoSan Francisco
31
Sep 17, 2026ArrivedDenverSan Diego
-10
Sep 16, 2026ArrivedSan DiegoSan Francisco
-9
Sep 16, 2026ArrivedDenverSan Diego
-4
Sep 15, 2026ArrivedSan DiegoSan Francisco
-8
Sep 15, 2026ArrivedDenverSan Diego
-9
Sep 14, 2026ArrivedSan DiegoSan Francisco
-9
Sep 14, 2026ArrivedDenverSan Diego
12
Sep 13, 2026ArrivedSan DiegoSan Francisco
-12
Sep 13, 2026ArrivedDenverSan Diego
-6
Sep 12, 2026ArrivedSan DiegoSan Francisco
-21
Sep 12, 2026ArrivedDenverSan Diego
-3
Sep 11, 2026ArrivedSan DiegoSan Francisco
4
Sep 11, 2026ArrivedDenverSan Diego
-6
Sep 10, 2026ArrivedSan DiegoSan Francisco
-8
Sep 10, 2026ArrivedDenverSan Diego
-11
Sep 9, 2026ArrivedSan DiegoSan Francisco
-28
Sep 9, 2026ArrivedDenverSan Diego
47
Sep 8, 2026ArrivedSan DiegoSan Francisco
-14
Sep 8, 2026ArrivedDenverSan Diego
-4
Sep 7, 2026ArrivedSan DiegoSan Francisco
-20
Sep 7, 2026ArrivedDenverSan Diego
-4
Sep 6, 2026ArrivedSan DiegoSan Francisco
-22
Sep 6, 2026ArrivedDenverSan Diego
-12
Sep 5, 2026ArrivedSan DiegoSan Francisco
-31
Sep 5, 2026ArrivedDenverSan Diego
-6
Sep 4, 2026ArrivedSan DiegoSan Francisco
-12
Sep 4, 2026ArrivedDenverSan Diego
4
Sep 3, 2026ArrivedSan DiegoSan Francisco
-19
Sep 2, 2026ArrivedSan DiegoSan Francisco
35
Sep 2, 2026ArrivedDenverSan Diego
-17
Sep 1, 2026ArrivedSan DiegoSan Francisco
3
Sep 1, 2026ArrivedDenverSan Diego
-8
Aug 31, 2026ArrivedSan DiegoSan Francisco
58
Aug 31, 2026ArrivedDenverSan Diego
-7
Aug 30, 2026ArrivedSan DiegoSan Francisco
-10
Aug 30, 2026ArrivedDenverSan Diego
-9
Aug 29, 2026ArrivedSan DiegoSan Francisco
-35
Aug 29, 2026ArrivedDenverSan Diego
-15
Aug 28, 2026ArrivedSan DiegoSan Francisco
48
Aug 28, 2026ArrivedDenverSan Diego
-10
Aug 27, 2026ArrivedSan DiegoSan Francisco
2
Aug 27, 2026ArrivedDenverSan Diego
-9
Aug 26, 2026ArrivedSan DiegoSan Francisco
93
Aug 26, 2026ArrivedDenverSan Diego
2
Aug 25, 2026ArrivedSan DiegoSan Francisco
17
Aug 25, 2026ArrivedDenverSan Diego
153
Aug 24, 2026ArrivedSan DiegoSan Francisco
-7

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