F91261Frontier Airlines · DEN → ONT
live · 38m ago
Route confirmed Frontier Airlines

F91261 DenverDEN · 22:29 OntarioONT · 23:50

F91261 by Frontier Airlines flies from Denver (DEN) to Ontario (ONT) for the Sat, Oct 24 departure.

Right nowOn time · gate A54 · as of 18:19
22:29

departs DEN · on schedule

⚖ F91261 typically leaves +12 and lands −3. The air wins minutes back.
Typical gate push+12 minmedian posted departure
Typical arrival−3 minmedian over 8 operations
Wins back in air~15 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
10-24
−3 arrival
10-23
+33 gate · +20 arrival
10-22
+12 gate · +6 arrival
10-21
−3 gate · −13 arrival
10-20
−7 gate · −24 arrival
10-19
+0 gate · −12 arrival
10-18
−1 gate · −13 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 · 9 operations tracked

The route today

live boards
DENDenverOn-time likelyDEN delay board →
ONTOntarioOn-time likelyONT delay board →
DEN→ONTevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
44%Chance of 15+ min delay
1.5%Chance of cancellation
+10 minAvg hub delay right now

Conditions at DEN and ONT 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 Ontario flights today

same route · Frontier Airlines
F92907departs 09:01

If F91261 is cancelled, this is the other Frontier Airlines nonstop flight from Denver to Ontario 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 F91261 actually runs

Pro Flight Search has tracked every published board update for F91261 across the DEN and ONT boards: schedule changes, gate pushes and actual clocks. Usually lands ~31 min late. Based on 8 confirmed landings · 2/8 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how F91261 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
10-24DEN 22:29ONT 23:50 23:47 (−3)
10-23DEN 22:29 23:02 (+33)ONT 23:50 00:10 (+20)
10-22DEN 22:29 22:41 (+12)ONT 23:50 23:56 (+6)
10-21DEN 22:29 22:26 (−3)ONT 23:50 23:37 (−13)
10-20DEN 22:29 22:22 (−7)ONT 23:50 23:26 (−24)
10-19DEN 22:29 (+0)ONT 23:50 23:38 (−12)
10-18DEN 22:29 22:28 (−1)ONT 23:50 23:37 (−13)
10-17DEN 22:29 22:43 (+14)ONT 23:50 23:47 (−3)
10-16DEN 22:29 22:54 (+25)ONT

Aircraft

Recent tails: N236FR, N436FR, N385FR, N633FR.

Board clocks recorded as DEN and ONT published them.

Planning around F91261? 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 — F91261 Denver to Ontario on-time performance, measured from the DEN and ONT airport boards.

Canonical URL
https://proflightsearch.com/flight/F91261
How we measure this →