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United Airlines

Is UA2661 delayed?

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

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Departure

San Francisco

SFO

Scheduled

Sep 16

Arrival

Ontario

ONT

Scheduled

Sep 16

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual
Not available

Arrival · UTC

Scheduled
Estimated
Not available
Actual
Not available
View this flight’s market

Market prices express trading expectations about a contract’s stated threshold. They do not confirm airline status. The linked market shows its terms and activity.

Recent arrivals

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

  • SFO → ONT

    29 min late

  • SFO → ONT

    5 min early

  • SFO → ONT

    1 min late

  • PHL → SFO

    8 min early

  • SFO → ONT

    10 min late
Flight history and details

Aug 17, 2026 — Sep 16, 2026

Observed arrivals
24
Arrivals over 15 minutes late
4
Observed cancellations
0
Observed occurrences
44

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

UA2661 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 14, 2026ArrivedSan FranciscoOntario
29
Sep 13, 2026ArrivedSan FranciscoOntario
-5
Sep 12, 2026ArrivedSan FranciscoOntario
1
Sep 11, 2026ArrivedPhiladelphiaSan Francisco
-8
Sep 10, 2026ArrivedSan FranciscoOntario
10
Sep 10, 2026ArrivedPhiladelphiaSan Francisco
-16
Sep 9, 2026ArrivedSan FranciscoOntario
17
Sep 8, 2026ArrivedSan FranciscoOntario
-13
Sep 7, 2026ArrivedSan FranciscoOntario
0
Sep 7, 2026ArrivedPhiladelphiaSan Francisco
-22
Sep 6, 2026ArrivedSan FranciscoOntario
2
Sep 5, 2026ArrivedSan FranciscoOntario
-12
Sep 4, 2026ArrivedSan FranciscoOntario
-15
Sep 4, 2026ArrivedPhiladelphiaSan Francisco
0
Sep 3, 2026ArrivedPhiladelphiaSan Francisco
31
Sep 2, 2026ArrivedPhiladelphiaSan Francisco
-21
Aug 31, 2026ArrivedPhiladelphiaSan Francisco
-20
Aug 30, 2026ArrivedPhiladelphiaSan Francisco
-18
Aug 28, 2026ArrivedPhiladelphiaSan Francisco
-23
Aug 27, 2026ArrivedPhiladelphiaSan Francisco
-4
Aug 26, 2026ArrivedPhiladelphiaSan Francisco
-2
Aug 24, 2026ArrivedPhiladelphiaSan Francisco
-21
Aug 23, 2026ArrivedPhiladelphiaSan Francisco
34
Aug 20, 2026ArrivedPhiladelphiaSan Francisco
0

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