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Southwest Airlines

Is WN4431 delayed?

WN4431 is cancelled on Nov 13.

Often late: arrived more than 15 min after schedule on 10 of the last 19 flights.

Last reported

Cancelled

This update may be out of date.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

Update time unavailable

Departure

St Louis

STL

Scheduled

Nov 13

Arrival

Boston

BOS

Scheduled

Nov 13

Times shown in airport local time

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

Awaiting settlement against the airport’s record of this flight.

View this flight’s marketHow this market settles

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.

  • St Louis → Boston

    51 min late

  • St Louis → Boston

    14 min early

  • St Louis → Boston

    11 min early

  • St Louis → Boston

    53 min late

  • St Louis → Boston

    35 min late

Is WN4431 usually late?

Period: Oct 15, 2026 – Nov 14, 2026

Arrivals tracked
19
On time
47%
of 19 arrivals
Late
53%
of 19 arrivals
Cancelled
5%
of 20 flights
Median arrival delay
17 min
9 in 10 arrived within
75 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. Compares scheduled and actual arrival times. Cancelled and diverted flights are left out. Some flights may be missing.

How flight status works

At the airports today

Boston (BOS) departures

Left more than 15 min late
28 of 54
Cancelled today
53

Related flights

All Southwest Airlines flights

Flight history and details
WN4431 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Nov 13, 2026CancelledSt LouisBostonNot available
View this flight’s market
Not available
Nov 12, 2026ArrivedSt LouisBoston51
Nov 11, 2026ArrivedSt LouisBoston-14
Nov 10, 2026ArrivedSt LouisBoston-11
Nov 9, 2026ArrivedSt LouisBoston53
Nov 8, 2026ArrivedSt LouisBoston35
Nov 6, 2026ArrivedSt LouisBoston19
Nov 5, 2026ArrivedSt LouisBoston0
Nov 4, 2026ArrivedSt LouisBoston10
Nov 3, 2026ArrivedSt LouisBoston94
Nov 2, 2026ArrivedSt LouisBoston17
Nov 1, 2026ArrivedSt LouisBoston28
Oct 28, 2026ArrivedLas VegasBurbank72
Oct 27, 2026ArrivedLas VegasBurbank12
Oct 25, 2026ArrivedSan DiegoOrlando34
Oct 24, 2026ArrivedLas VegasBurbank-5
Oct 21, 2026ArrivedLas VegasBurbank86
Oct 20, 2026ArrivedLas VegasBurbank-6
Oct 18, 2026ArrivedSan DiegoOrlando0
Oct 17, 2026ArrivedLas VegasBurbank-5
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