WN438Southwest Airlines · DEN → BWI
live · 28m ago
Route confirmed Southwest Airlines

WN438 DenverDEN · 15:40 BaltimoreBWI · 21:00

WN438 by Southwest Airlines flies from Denver (DEN) to Baltimore (BWI).

Right nowNext departure today Operates daily
15:40

scheduled from DEN

Typical gate push+66 minmedian posted departure
Typical arrival+57 minmedian over 6 operations
Wins back in air~9 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 6 operations · gate push → arrival
0+44+89+133 min
08-17
+29 gate · +1 arrival
08-14
+66 gate · +57 arrival
08-13
+51 gate · +29 arrival
08-10
+133 gate · +115 arrival
08-07
+60 gate · +38 arrival
08-06
+108 gate · +82 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 +57 min · 0 cancelled · 6 operations tracked

The route today

live boards
DENDenverModerate riskDEN delay board →
BWIBaltimoreOn-time likelyBWI delay board →
DEN→BWIevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
44%Chance of 15+ min delay
1.3%Chance of cancellation
+9 minAvg hub delay right now

Conditions at DEN and BWI are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, 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 →

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 Baltimore flights today

same route · Southwest Airlines
WN4412departs 05:15
WN3168departs 05:30
WN1105departs 06:40
WN839departs 07:40
WN1111departs 08:05
WN1469departs 08:10

If WN438 is cancelled, these are the other Southwest Airlines nonstop flights from Denver to Baltimore on the same day, with scheduled departure times in DEN local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How WN438 actually runs

Pro Flight Search has tracked every published board update for WN438 across the DEN and BWI boards: schedule changes, gate pushes and actual clocks. Usually lands ~60 min late. Based on 6 confirmed landings · 1/6 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how WN438 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
08-17DEN 15:40 16:09 (+29)BWI 21:00 21:01 (+1)
08-14DEN 15:40 16:46 (+66)BWI 21:00 21:57 (+57)
08-13DEN 15:40 16:31 (+51)BWI 21:00 21:29 (+29)
08-10DEN 15:40 17:53 (+133)BWI 21:00 22:55 (+115)
08-07DEN 15:40 16:40 (+60)BWI 21:00 21:38 (+38)
08-06DEN 15:40 17:28 (+108)BWI 21:00 22:22 (+82)

Aircraft

Recent tails: N8707P, N8560Z, N8891Q, N8931L.

Board clocks recorded as DEN and BWI 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 — WN438 Denver to Baltimore on-time performance, measured from the DEN and BWI airport boards.

Canonical URL
https://proflightsearch.com/flight/WN438
How we measure this →