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Southwest Airlines

Is WN503 delayed?

Service date: · Scheduled arrival date; departure time unavailable (America/Phoenix)

Arrived

28 min early

Official source · Updated

Departure

Ontario

ONT

Scheduled

Not available

Arrival

Phoenix

PHX

Actual

Scheduled 08:05

Sep 8

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Not available
Estimated
Not available
Actual
Not available

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 → TPA

    4 min early

  • ONT → PHX

    28 min early

  • ONT → PHX

    9 min early

  • ONT → PHX

    17 min early

  • ONT → PHX

    19 min early
Flight history and details

Aug 19, 2026 — Sep 18, 2026

Observed arrivals
20
Arrivals over 15 minutes late
3
Observed cancellations
0
Observed occurrences
22

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

WN503 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 17, 2026ArrivedDenverTampa
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-4
Sep 16, 2026ArrivedOntarioPhoenix
-28
Sep 15, 2026ArrivedOntarioPhoenix
-9
Sep 13, 2026ArrivedOntarioPhoenix
-17
Sep 12, 2026ArrivedOntarioPhoenix
-19
Sep 10, 2026ArrivedDenverTampa
22
Sep 9, 2026ArrivedOntarioPhoenix
-1
Sep 8, 2026ArrivedOntarioPhoenix
-28
Sep 7, 2026ArrivedDenverTampa
6
Sep 6, 2026ArrivedPhoenixNashville
-7
Sep 6, 2026ArrivedSan DiegoPhoenix
-31
Sep 5, 2026ArrivedOntarioPhoenix
-17
Sep 4, 2026ArrivedDenverTampa
-4
Aug 31, 2026ArrivedDenverTampa
-4
Aug 30, 2026ArrivedPhoenixNashville
-8
Aug 28, 2026ArrivedDenverTampa
4
Aug 27, 2026ArrivedDenverTampa
61
Aug 23, 2026ArrivedPhoenixNashville
-8
Aug 21, 2026ArrivedDenverTampa
23
Aug 20, 2026ArrivedDenverTampa
-7

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