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SkyWest Airlines

Is OO428 delayed?

OO428 left Denver 14 min early, at 12:32 on Sep 23; its arrival time is not confirmed yet.

Usually on time: arrived within 15 min of schedule on 13 of the last 13 flights.

DepartedLast reported

14 min early

This update may be out of date.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

Update time unavailable

Departure

Denver

DEN

Actual

Scheduled 12:47

Sep 23

Arrival

Williston

XWA

Scheduled

Sep 23

Times shown in airport local time

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

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual

Arrival · UTC

Scheduled
Estimated
Not available
Actual
Not available

Recent arrivals

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

  • Denver → Williston

    9 min early

  • Denver → Williston

    <1 min early

  • Denver → Williston

    On schedule (6 min behind)

  • Denver → Williston

    On schedule (5 min behind)

  • Denver → Williston

    On schedule (11 min behind)

Is OO428 usually late?

Observation window: Aug 31, 2026 – Sep 30, 2026

Observed arrivals
13
On time
100%
of 13 arrivals
Late
0%
of 13 arrivals
Cancelled
0%
of 18 flights
Median arrival delay
0 min
9 in 10 arrived within
6 min

On time means arriving no more than 15 minutes after the scheduled time; late means more than 15 minutes after. Cancelled and diverted flights are counted apart from arrivals. 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

At the airports today

Denver (DEN) departures

Left more than 15 min late
72 of 506
Cancelled today
3

Related flights

Return flights KXWA → DEN

All SkyWest Airlines flights

Flight history and details
OO428 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 22, 2026ArrivedDenverWilliston-9
Sep 18, 2026ArrivedDenverWilliston0
Sep 17, 2026ArrivedDenverWilliston6
Sep 16, 2026ArrivedDenverWilliston5
Sep 15, 2026ArrivedDenverWilliston11
Sep 12, 2026ArrivedDenverWilliston-14
Sep 11, 2026ArrivedDenverWilliston2
Sep 9, 2026ArrivedDenverWilliston5
Sep 8, 2026ArrivedDenverWilliston-3
Sep 7, 2026ArrivedDenverWilliston0
Sep 6, 2026ArrivedDenverWilliston-13
Sep 5, 2026ArrivedDenverWilliston-1
Sep 4, 2026ArrivedDenverWilliston-3

Email me if OO428 runs late

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