AC4129 Flight Status Air Canada: San Francisco to Denver (ACA4129)
AC 4129 San Francisco to Denver Flight Status
Not scheduled today. Latest flight: May 17th, 2026 ; recent history is in the table below.
AC 4129 Flight Status & Schedule Air Canada San Francisco to Denver
| Date | From | To | Departure | Arrival | Status | Details |
|---|---|---|---|---|---|---|
| May 17 | SFO | DEN | 13:48 | 16:47 | Landed Late | Track > |
| May 16 | SFO | DEN | 13:38 | 16:45 | Landed Late | Track > |
| May 15 | SFO | DEN | 13:34 | 16:29 | En-Route | Track > |
| May 14 | SFO | DEN | 13:45 | 16:48 | Landed Late | Track > |
| May 13 | SFO | DEN | 13:41 | 16:29 | Unknown | Track > |
| May 12 | SFO | DEN | 13:04 | 16:03 | Landed Late | Track > |
| May 11 | SFO | DEN | 13:34 | 16:35 | Landed | Track > |
| Nov 23 | SFO | DEN | 14:52 | 18:01 | Landed | Track > |
| Nov 22 | SFO | DEN | 15:07 | 18:20 | Landed | Track > |
Air Canada flight AC 4129 links San Francisco and Denver, 1,553 km (965 mi) apart. Its timetable allows 2 h 44 min; in practice it usually takes about 2 h 5 min, so it often makes up time. It is not flying today; the last flight, on 17 May 2026, landed 18 minutes late.
About AC 4129
- Distance
- 1,553 km (965 mi)
- Typical flight time
- 2 h 5 min
- On time
- 3 of the last 7
- Average delay when late
- 18 min
AC 4129 FAQ
- How long is the AC4129 flight?
- The timetable allows 2 h 44 min. San Francisco to Denver is 1,553 km (965 mi).
- How often is AC4129 late?
- 4 of the last 7 flights arrived 15 or more minutes late; when late, by 18 minutes on average.
- What other flight numbers does AC4129 have?
- Also listed as ACA4129 (Air Canada's ICAO code) and AC 4129.
AC4129 and San Francisco SFO to Denver DEN Flights
Flight AC4129 is a code-share Air Canada flight of the United Airlines operated UA2121.
Other flights departing from San Francisco SFO: UA5997, UA2121, WN4584
Other flights arriving at Denver DEN: UA2121, WN2864, WN4016
All flights connecting San Francisco SFO to Denver DEN.