F91229Frontier Airlines · DEN → SFO
live · 3m ago
Route confirmed Frontier Airlines

F91229 DenverDEN · 09:16 San FranciscoSFO · 11:05

F91229 by Frontier Airlines flies from Denver (DEN) to San Francisco (SFO) for the Sat, Oct 10 departure.

Right nowLanded in San Francisco · position data
11:43

arrived at SFO · 38 min late

Typical gate push+31 minmedian posted departure
Typical arrival−14 minmedian over 3 operations
Wins back in air~45 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 4 operations · gate push → arrival
0+35+70+105 min
10-10
+31 gate
10-09
+105 gate · +89 arrival
10-08
+0 gate · −14 arrival
10-07
+6 gate · −26 arrival

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The route today

live boards
DENDenverOn-time likelyDEN delay board →
SFOSan FranciscoOn-time likelySFO delay board →
DEN→SFOevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
58%Chance of 15+ min delay
2.4%Chance of cancellation
+25 minAvg hub delay right now

Driven mainly by SFO (San Francisco), currently flying MVFR (marginal visual). 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 Francisco flights today

same route · Frontier Airlines
F93435departs 06:55
F91093departs 13:48
F93439departs 22:29

If F91229 is cancelled, these are the other Frontier Airlines nonstop flights from Denver to San Francisco 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 F91229 actually runs

Pro Flight Search has tracked every published board update for F91229 across the DEN and SFO boards: schedule changes, gate pushes and actual clocks. Usually lands ~14 min early. Based on 2 confirmed landings · 2/2 within 15 min of schedule. Pushes back late but makes up time in the air.

The verdict above is that record speaking, so it reflects how F91229 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
10-10DEN 09:16 09:47 (+31)SFO 11:05
10-09DEN 09:16 11:01 (+105)SFO 11:05 12:34 (+89)
10-08DEN 09:16 (+0)SFO 11:05 10:51 (−14)
10-07DEN 09:05 09:11 (+6)SFO 10:58 10:32 (−26)

Aircraft

Recent tails: N676FR, N330FR, N717FR, N713FR.

Board clocks recorded as DEN and SFO published them.

Planning around F91229? 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 — F91229 Denver to San Francisco on-time performance, measured from the DEN and SFO airport boards.

Canonical URL
https://proflightsearch.com/flight/F91229
How we measure this →