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United Airlines

Is UA731 delayed?

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

Arrived

4 min early

Official source · Updated

Departure

Denver

DEN

Actual

Scheduled 18:10

Sep 8

Arrival

Boston

BOS

Actual

Scheduled 23:50

Sep 8

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual

Arrival · UTC

Scheduled
Estimated
Not available
Actual
Route overview: Denver → BostonDENBOS
Route overview

Recent arrivals

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

  • DEN → BOS

    70 min late

  • DEN → BOS

    19 min early

  • DEN → BOS

    22 min late

  • DEN → BOS

    7 min late

  • DEN → BOS

    90 min late
Flight history and details

Aug 20, 2026 — Sep 19, 2026

Observed arrivals
14
Arrivals over 15 minutes late
5
Observed cancellations
0
Observed occurrences
15

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

UA731 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 17, 2026ArrivedDenverBoston
70
Sep 16, 2026ArrivedDenverBoston
-19
Sep 15, 2026ArrivedDenverBoston
22
Sep 14, 2026ArrivedDenverBoston
7
Sep 13, 2026ArrivedDenverBoston
90
Sep 12, 2026ArrivedDenverBoston
-23
Sep 11, 2026ArrivedDenverBoston
-2
Sep 10, 2026ArrivedDenverBoston
-33
Sep 9, 2026ArrivedDenverBoston
-29
Sep 8, 2026ArrivedDenverBoston
-4
Sep 7, 2026ArrivedHebronChicago
-11
Sep 6, 2026ArrivedHebronChicago
24
Sep 5, 2026ArrivedHebronChicago
-1
Sep 4, 2026ArrivedHebronChicago
187

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