Southwest Airlines
WN1228San Francisco to Denver
Southwest Airlines flight WN1228 flies from San Francisco (SFO) to Denver (DEN), 1,553 km. Over August 2025 to July 2026 it usually arrives about 12 minutes late: 72% of 460 flights arrived within 15 minutes of schedule and 2% were cancelled (US Department of Transportation data).
On-time record, last 12 months
72%
on time (within 15 min)
18%
more than 30 min late
2%
cancelled
+12 min
average arrival vs schedule
Every operation of WN1228, August 2025 to July 2026: 460 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as WN1228
- San Francisco (SFO) to Denver (DEN)55 flights
- Denver (DEN) to Colorado Springs (COS)40 flights
- Phoenix Sky Harbor (PHX) to Las Vegas (LAS)38 flights
- Chicago Midway (MDW) to Tulsa (TUL)36 flights
- Atlanta (ATL) to Denver (DEN)33 flights
- Albuquerque (ABQ) to Dallas Love Field (DAL)32 flights
- Nashville (BNA) to Austin Bergstrom (AUS)26 flights
- Chicago Midway (MDW) to Raleigh-durham (RDU)26 flights
- New York (LGA) to Denver (DEN)26 flights
- Colorado Springs (COS) to Chicago Midway (MDW)25 flights
Other flights from San Francisco to Denver
More about San Francisco (SFO) and Denver (DEN).
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