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United Airlines

Is UA1871 delayed?

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

Arrived

136 min late

Updated

Departure

Denver

DEN

Actual

Scheduled 16:00

Aug 23

Arrival

Calgary

YYC

Actual

Scheduled 00:30

Aug 24

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.

  • DEN → YYC

    24 min early

  • DEN → YYC

    2 min early

  • DEN → YYC

    9 min early

  • DEN → YYC

    9 min early

  • DEN → YYC

    2 min late
Flight history and details

Aug 18, 2026 — Sep 17, 2026

Observed arrivals
25
Arrivals over 15 minutes late
2
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

UA1871 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 17, 2026ArrivedDenverCalgary
-24
Sep 16, 2026ArrivedDenverCalgary
-2
Sep 15, 2026ArrivedDenverCalgary
-9
Sep 14, 2026ArrivedDenverCalgary
-9
Sep 13, 2026ArrivedDenverCalgary
2
Sep 12, 2026ArrivedDenverCalgary
-11
Sep 11, 2026ArrivedDenverCalgary
-2
Sep 10, 2026ArrivedDenverCalgary
-8
Sep 9, 2026ArrivedDenverCalgary
8
Sep 8, 2026ArrivedDenverCalgary
-18
Sep 7, 2026ArrivedDenverCalgary
-17
Sep 5, 2026ArrivedDenverCalgary
-21
Sep 4, 2026ArrivedDenverCalgary
-12
Sep 3, 2026ArrivedDenverCalgary
-8
Sep 2, 2026ArrivedDenverCalgary
-3
Sep 1, 2026ArrivedDenverCalgary
-2
Aug 31, 2026ArrivedDenverCalgary
-8
Aug 30, 2026ArrivedDenverCalgary
-1
Aug 29, 2026ArrivedDenverCalgary
-19
Aug 27, 2026ArrivedDenverCalgary
-3
Aug 26, 2026ArrivedDenverCalgary
-12
Aug 25, 2026ArrivedDenverCalgary
1
Aug 24, 2026ArrivedDenverCalgary
-14
Aug 23, 2026ArrivedDenverCalgary
136
Aug 22, 2026ArrivedDenverCalgary
32

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