WN1578Southwest Airlines · DEN → DAL
live · 40m ago
Route confirmed Southwest Airlines

WN1578 DenverDEN · 18:50 DallasDAL · 21:45

WN1578 by Southwest Airlines flies from Denver (DEN) to Dallas (DAL).

Right nowNext departure today Operates daily
18:05

scheduled from DEN

Typical gate push+29 minmedian posted departure
Typical arrival+52 minmedian over 8 operations

Where the minutes go

last 7 operations · gate push → arrival
0+34+67+101 min
11-02
+15 gate · +59 arrival
10-30
+3 gate · −6 arrival
10-29
+43 gate · +39 arrival
10-26
+15 gate · +59 arrival
10-25
+11 gate · +2 arrival
10-23
+56 gate · +52 arrival
10-22
+101 gate · +84 arrival

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The last 30 days

arrival outcome per operation

median arrival +52 min · 0 cancelled · 8 operations tracked

The route today

live boards
DENDenverOn-time likelyDEN delay board →
DALDallasOn-time likelyDAL delay board →
DEN→DALevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
46%Chance of 15+ min delay
1.5%Chance of cancellation
+13 minTypical airport delay in this weather

Conditions at DEN and DAL are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records under conditions like today's, over the last 90 days.

Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →

Tomorrow at Denver

Forecast

Tue 3 Nov, local date

High14°Clikely 11°C to 16°C
Low3°Clikely 1°C to 5°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

Tomorrow at Dallas

Forecast

Tue 3 Nov, local date

High24°Clikely 21°C to 26°C
Low17°Clikely 12°C to 21°C
  • 31% chance of thunder
  • 83% chance of rain

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other Denver to Dallas flights today

same route · Southwest Airlines
WN1749departs 05:35
WN1388departs 05:55
WN1334departs 06:20
WN850departs 06:35
WN2564departs 07:40
WN1572departs 07:45

If WN1578 is cancelled, these are the other Southwest Airlines nonstop flights from Denver to Dallas on the same day, with scheduled departure times in DEN local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How WN1578 actually runs

Pro Flight Search has tracked every published board update for WN1578 across the DEN and DAL boards: schedule changes, gate pushes and actual clocks. Usually lands ~69 min late. Based on 8 confirmed landings · 2/8 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how WN1578 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
11-02DEN 18:50 19:05 (+15)DAL 21:45 22:44 (+59)
10-30DEN 18:50 18:53 (+3)DAL 21:45 21:39 (−6)
10-29DEN 18:50 19:33 (+43)DAL 21:45 22:24 (+39)
10-26DEN 18:50 19:05 (+15)DAL 21:45 22:44 (+59)
10-25DEN 19:05 19:16 (+11)DAL 22:00 22:02 (+2)
10-23DEN 18:50 19:46 (+56)DAL 21:45 22:37 (+52)
10-22DEN 18:50 20:31 (+101)DAL 21:45 23:09 (+84)
10-19DEN 18:50 19:46 (+56)DAL 21:45 22:37 (+52)

Aircraft

Recent tails: N8955Q, N8870K, N8520Q, N8986Q.

Board clocks recorded as DEN and DAL published them.

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search: WN1578 Denver to Dallas on-time performance, measured from the DEN and DAL airport boards.

Canonical URL
https://proflightsearch.com/flight/WN1578
How we measure this →