WN1661Southwest Airlines · DEN → SAT
live · 8m ago
Route confirmed Southwest Airlines

WN1661 DenverDEN · 11:00 San AntonioSAT · 09:05

WN1661 by Southwest Airlines flies from Denver (DEN) to San Antonio (SAT) for the Tue, Sep 15 departure.

Right nowLanded in San Antonio · position data
14:01

landed at SAT · confirmed by live position

Typical gate push+3 minmedian posted departure

Where the minutes go

last 5 operations · gate push → arrival
0+30+60+90 min
09-15
+5 gate
09-14
+2 gate
09-13
+6 gate
09-12
+3 gate
09-11
−2 gate

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

0 cancelled · 5 operations tracked

The route today

live boards
DENDenverOn-time likelyDEN delay board →
SATSan AntonioOn-time likelySAT delay board →
DEN→SATevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
41%Chance of 15+ min delay
1.7%Chance of cancellation
+9 minAvg hub delay right now

Conditions at DEN and SAT 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 San Antonio flights today

same route · Southwest Airlines
WN1663departs 12:10
WN553departs 16:00
WN4035departs 18:00
WN3293departs 18:45

If WN1661 is cancelled, these are the other Southwest Airlines nonstop flights from Denver to San Antonio 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 WN1661 actually runs

Pro Flight Search has tracked every published board update for WN1661 across the DEN and SAT boards: schedule changes, gate pushes and actual clocks. Usually departs on time. Based on 5 confirmed departures · 5/5 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how WN1661 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
09-15DEN 11:00 11:05 (+5)SAT
09-14DEN 08:30 08:32 (+2)SAT 09:05
09-13DEN 12:00 12:06 (+6)SAT 06:40
09-12DEN 11:25 11:28 (+3)SAT 10:10
09-11DEN 08:30 08:28 (−2)SAT 06:40

Aircraft

Recent tails: N8788L, N8937Q, N8736J, N8811L.

Board clocks recorded as DEN and SAT 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 — WN1661 Denver to San Antonio on-time performance, measured from the DEN and SAT airport boards.

Canonical URL
https://proflightsearch.com/flight/WN1661
How we measure this →