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Southwest Airlines

Is WN8521 delayed?

No delay reported yet. WN8521 is scheduled to leave Des Moines at 06:54 on Nov 15 and reach Denver at 07:06 (as of Nov 15, 10:05 UTC).

The GADUIN market gives an on-time arrival at Denver a 77% chance.

No live update yet

Showing the published schedule until live times come in.

Update time unavailable

Departure

Des Moines

DSM

Scheduled

Nov 15

Arrival

Denver

DEN

Scheduled

Nov 15

Times shown in airport local time

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

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

The price is the traded chance of the market’s outcome. It doesn’t confirm the flight’s status. See the market for its rules.

Recent arrivals

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

  • Providence → St Louis

    52 min late
  • Houston → Las Vegas

    233 min late
  • Denver → Eugene

    On schedule (1 min behind)

Is WN8521 usually late?

Period: Oct 16, 2026 – Nov 15, 2026

Landings recorded
3
Graded against schedule
3
Not graded
0
On time
1
Late
2
Cancelled
1
Diverted
0

Percentages and delay figures appear once 20 arrivals are graded.

On time means landing no more than 15 minutes after the scheduled arrival, late more than 15 minutes after, both times read to the minute. The percentages share one base: graded arrivals plus cancelled and diverted flights. A cancelled plan another plan of the flight replaced within 12 hours is not counted. Median and “9 in 10” are interpolated over the graded arrivals. Compares scheduled and actual arrival times, read to the minute. Some flights may be missing.

How flight status works

Departures on record at these airports today

Denver (DEN) departures

Too few departures on record with a known outcome so far today to judge: 3 of 20 needed.

Counts cover the departures on record at each airport, not its full schedule.

All Southwest Airlines flights

Flight history and details
WN8521 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Nov 14, 2026ArrivedProvidenceSt Louis52
Nov 14, 2026CancelledEugenePhoenixNot availableNot available
Nov 14, 2026ArrivedHoustonLas Vegas233
Nov 14, 2026ArrivedDenverEugene1
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