Flight number record
F9 1483
Frontier Airlines · Chicago to Denver
- Route
- ORD → DEN
- Departs
- 21:57
- Flights
- 267
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s F9 1483, check with Frontier Airlines.
F9 1483 draws a C−. About one flight in three arrives at least 15 minutes late, and the typical late arrival is close to two hours behind schedule. Build slack into anything you connect to. That rests on 267 flights, with a median arrival 1 minute late.
The national on-time rate over the same period is 77.3%, so F9 1483 runs 12 points behind the country as a whole. Across a thousand flights that is about 121 extra late arrivals.
Key figures
On time
65.2%
Arrivals under 15 minutes late, of 256 completed flights
Avg delay
114 min
Across delayed arrivals only, not all flights
Cancelled
3.75%
National rate is 1.89%
1 hour+ late
18.0%
National rate is 8.3%
These figures cover 267 flights between September 2025 and August 2026. Beyond the headline rate, 18.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When F9 1483 flies
F9 1483 flies ORD to DEN without a single fixed slot. Its most common scheduled departure was 21:57, used on 44 of 267 flights, with 07:00 (39 flights) and 21:37 (35 flights) next.
- Departs 21:5744 flights16.5%
- Departs 07:0039 flights14.6%
- Departs 21:3735 flights13.1%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 21:57 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and F9 1483 runs 5 points worse at 65.2%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
F9 1483 next to ORD to DEN
Every carrier on ORD to DEN combined arrived on time 74.3% of the time across 6,118 flights, so F9 1483 is 9 points behind it. Across its whole network Frontier Airlines managed 72.7%, which this flight trails by 8 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| F9 1483thin sample | 267 | 65.2% | 114 min | 3.75% | C− |
| All Frontier Airlines on ORD–DENthin sample | 324 | 66.0% | 123 min | 3.40% | C− |
| All carriers on ORD–DEN | 6,118 | 74.3% | 78 min | 1.19% | C |
| Frontier Airlines, whole network | 213,022 | 72.7% | 84 min | 2.05% | C |
Across the year
F9 1483 quarter by quarter
F9 1483 did not run the same all year. Its best quarter was Jan–Mar 2026 at 80.5% on time and its weakest Jul–Sep 2026 at 37.2%, a swing of 43 points on roughly 53 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202530 flights80.0%
- Oct–Dec 202578 flights68.9%
- Jan–Mar 202641 flights80.5%
- Apr–Jun 202670 flights63.2%
- Jul–Sep 202648 flights37.2%
Scale runs 30% to 85%.
By weekday, F9 1483 ranged from 60.5% on Thursday to 69.0% on Sunday. With about 38 flights behind each day, a spread of 9 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late F9 1483 runs when it is late
F9 1483 often beats the schedule: 65 of 256 completed flights, 25%, arrived 15 minutes or more early. When F9 1483 is late it tends to be very late: 46 of its 89 late arrivals were an hour or more behind, and 22 were two hours or more.
- 15+ min early65 flights25.4%
- Within 15 min102 flights39.8%
- 15–29 min late16 flights6.3%
- 30–59 min late27 flights10.5%
- 1–2 hours late24 flights9.4%
- 2+ hours late22 flights8.6%
Scale runs 0% to 100%.
Share of 256 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 84 departures that left 15 minutes late or more, only 10 made it up before arrival. In the other direction, 15 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at DEN.
The worst days
Worst days for F9 1483
The latest arrival of the period was on 26 October 2025, 11 hours 50 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The five worst days are spread across October, June, September, March and August, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 26 October 2025 | 11 hours 50 minutes | Carrier |
| 11 June 2026 | 9 hours 21 minutes | Late-arriving aircraft |
| 18 September 2025 | 9 hours 3 minutes | Extreme weather |
| 16 March 2026 | 8 hours 39 minutes | Late-arriving aircraft |
| 14 August 2026 | 8 hours 30 minutes | Carrier |
Delay causes
Why F9 1483 runs late
Late-arriving aircraft accounts for 45% of the 10,000 delay minutes carriers reported here, and the remaining four split what is left.
- 45%Late-arriving aircraft
- 37%Carrier
- 11%National Airspace System
- 7%Extreme weather
45% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 10,000 reported delay minutes here, that single category outweighs weather by 7 to one. The split is drawn from 10,121 delay minutes reported on F9 1483.
Cancellations run at 3.75%, against 1.89% nationally. That is about one flight in 25 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and routes
What a delay on this flight costs
18.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The 888 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
Every one of the 267 flights under F9 1483 in the data flew ORD to DEN. The number was not reused on any other city pair, which makes this a clean record of one route.
One caution: this is a thin sample. 267 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking F9 1483
For a booking, the cancellation rate is the figure to plan around on F9 1483: 3.75% of its 267 scheduled flights did not operate. A late arrival costs close to two hours, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- ORD to DEN, every carrier and departure
- DEN to ORD, the return direction
- United Airlines 767 on the same route69.5%
- American Airlines 1387 on the same route55.1%
- United Airlines 1803 on the same route84.5%
- Chicago O'Hare International (ORD) delay statistics
- Denver International (DEN) delay statistics
- Frontier Airlines on-time record
- Every Frontier Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
A flight number here means Frontier Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.