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United Airlines

Is UA2851 delayed?

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

Arrived

12 min early

Updated

Departure

San Francisco

SFO

Actual

Scheduled 12:45

Aug 29

Arrival

Portland

PDX

Actual

Scheduled 21:35

Aug 29

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Actual

Arrival · UTC

Scheduled
Estimated
Actual

Recent arrivals

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

  • SFO → PDX

    131 min late

  • SFO → PDX

    4 min late

  • SFO → ABQ

    25 min early

  • SFO → PDX

    3 min late

  • SFO → PDX

    21 min early
Flight history and details

Aug 20, 2026 — Sep 19, 2026

Observed arrivals
17
Arrivals over 15 minutes late
5
Observed cancellations
0
Observed occurrences
27

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

UA2851 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 18, 2026ArrivedSan FranciscoPortland
View this flight’s market
131
Sep 17, 2026ArrivedSan FranciscoPortland
4
Sep 16, 2026ArrivedSan FranciscoAlbuquerque
-25
Sep 15, 2026ArrivedSan FranciscoPortland
3
Sep 12, 2026ArrivedSan FranciscoPortland
-21
Sep 11, 2026ArrivedSan FranciscoPortland
70
Sep 10, 2026ArrivedSan FranciscoPortland
17
Sep 9, 2026ArrivedSan FranciscoAlbuquerque
-18
Sep 8, 2026ArrivedSan FranciscoPortland
84
Sep 7, 2026ArrivedSan FranciscoPortland
126
Sep 6, 2026ArrivedSan FranciscoPortland
-10
Sep 5, 2026ArrivedSan FranciscoPortland
-15
Sep 4, 2026ArrivedSan FranciscoPortland
5
Sep 3, 2026ArrivedSan FranciscoPortland
9
Sep 2, 2026ArrivedSan FranciscoPortland
2
Sep 1, 2026ArrivedDallas-Fort WorthSan Francisco
-25
Aug 29, 2026ArrivedSan FranciscoPortland
-12

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