WN3977Southwest Airlines · COS → DEN
live · 5m ago
Route confirmed Southwest Airlines

WN3977 Colorado SpringsCOS DenverDEN · 07:00

WN3977 by Southwest Airlines flies from Colorado Springs (COS) to Denver (DEN) for the Sun, Oct 25 departure.

Right nowExpected in Denver · On time
07:00

arrival expected at DEN · on schedule

Typical arrival−3 minmedian over 8 operations

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
10-24
−10 arrival
10-21
+7 arrival
10-20
−25 arrival
10-18
−8 arrival
10-17
+8 arrival
10-14
+10 arrival
10-13
−5 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 −3 min · 0 cancelled · 8 operations tracked

The route today

live boards
COSColorado SpringsOn-time likelyCOS delay board →
DENDenverOn-time likelyDEN delay board →
COS→DENevery carrier, schedules and on-time historyRoute intelligence →

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.

How WN3977 actually runs

Pro Flight Search has tracked every published board update for WN3977 across the COS and DEN boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 8 confirmed landings · 8/8 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how WN3977 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
10-24COS DEN 07:45 07:35 (−10)
10-21COS DEN 08:00 08:07 (+7)
10-20COS DEN 08:00 07:35 (−25)
10-18COS DEN 07:00 06:52 (−8)
10-17COS DEN 07:45 07:53 (+8)
10-14COS DEN 08:00 08:10 (+10)
10-13COS DEN 08:00 07:55 (−5)
10-11COS DEN 07:00 06:57 (−3)

Aircraft

Recent tails: N8983Q, N7848A, N216WR, N963WN.

Board clocks recorded as COS and DEN published them.

Planning around WN3977? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

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 — WN3977 Colorado Springs to Denver on-time performance, measured from the COS and DEN airport boards.

Canonical URL
https://proflightsearch.com/flight/WN3977
How we measure this →