Flight number record
F9 1441
Frontier Airlines · Atlanta to Chicago
- Route
- ATL → ORD
- Departs
- 06:35
- Flights
- 342
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s F9 1441, check with Frontier Airlines.
F9 1441 sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 5 points worse than the national rate of 77.3%. The late ones land an hour and a half behind schedule. That rests on 342 flights, with a median arrival 1 minute early.
The national on-time rate over the same period is 77.3%, so F9 1441 runs 5 points behind the country as a whole. Across a thousand flights that is about 46 extra late arrivals.
Key figures
On time
72.7%
Arrivals under 15 minutes late, of 337 completed flights
Avg delay
94 min
Across delayed arrivals only, not all flights
Cancelled
1.46%
National rate is 1.89%
1 hour+ late
12.8%
National rate is 8.3%
These figures cover 342 flights between September 2025 and August 2026. Beyond the headline rate, 12.8% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Schedule
When F9 1441 flies
F9 1441 flies ATL to ORD without a single fixed slot. Its most common scheduled departure was 06:35, used on 104 of 342 flights.
- Departs 06:35104 flights30.4%
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 06:35 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and F9 1441 runs 17 points worse at 72.7%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Against the route
F9 1441 next to ATL to ORD
Every carrier on ATL to ORD combined arrived on time 69.0% of the time across 6,493 flights, so F9 1441 is 4 points ahead of it. Frontier flew 716 flights on the same city pair under all its flight numbers, including this one, and those ran 64.4% on time. Across its whole network Frontier Airlines managed 72.7%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| F9 1441thin sample | 342 | 72.7% | 94 min | 1.46% | C |
| All Frontier Airlines on ATL–ORD | 716 | 64.4% | 107 min | 3.07% | D− |
| All carriers on ATL–ORD | 6,493 | 69.0% | 83 min | 2.40% | C |
| Frontier Airlines, whole network | 213,022 | 72.7% | 84 min | 2.05% | C |
Across the year
F9 1441 quarter by quarter
F9 1441 did not run the same all year. Its best quarter was Jul–Sep 2026 at 82.0% on time and its weakest Jan–Mar 2026 at 64.9%, a swing of 17 points on roughly 86 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 202523 flights—
- Oct–Dec 202591 flights67.0%
- Jan–Mar 202677 flights64.9%
- Apr–Jun 202689 flights76.1%
- Jul–Sep 202662 flights82.0%
Scale runs 55% to 85%. Rows with fewer than 30 flights show a dash.
By weekday, F9 1441 did best on Thursday at 86.3% on time and worst on Saturday at 64.6%. Each day rests on about 49 flights, so a gap of 22 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late F9 1441 runs when it is late
F9 1441 often beats the schedule: 90 of 337 completed flights, 27%, arrived 15 minutes or more early. The 92 late arrivals split 23 under half an hour, 26 between 30 and 60 minutes, and 43 an hour or more.
- 15+ min early90 flights26.7%
- Within 15 min155 flights46.0%
- 15–29 min late23 flights6.8%
- 30–59 min late26 flights7.7%
- 1–2 hours late25 flights7.4%
- 2+ hours late18 flights5.3%
Scale runs 0% to 100%.
Share of 337 completed flights by arrival against schedule.
20 of 101 late departures made up the time and arrived on time, 20% of them. 11 flights left on time and still arrived late.
The worst days
Worst days for F9 1441
The latest arrival of the period was on 4 December 2025, 14 hours 13 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Three of the five worst days fell in December 2025.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 4 December 2025 | 14 hours 13 minutes | Carrier |
| 6 March 2026 | 10 hours 30 minutes | National Airspace System |
| 15 December 2025 | 7 hours 20 minutes | Late-arriving aircraft |
| 23 December 2025 | 7 hours 14 minutes | Late-arriving aircraft |
| 12 October 2025 | 6 hours 28 minutes | Late-arriving aircraft |
Delay causes
Why F9 1441 runs late
Late-arriving aircraft accounts for 48% of the 8,659 delay minutes carriers reported here, and the remaining four split what is left.
- 48%Late-arriving aircraft
- 30%Carrier
- 22%National Airspace System
48% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 8,659 reported delay minutes here, that single category outweighs weather by 48 to one. The split is drawn from 8,659 delay minutes reported on F9 1441.
Cancellations sit at 1.46% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
12.8% 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 606 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 342 flights under F9 1441 in the data flew ATL to ORD. 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. 342 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 1441
For a booking, F9 1441 is a flight to put a long connection behind. 12.8% of its completed flights arrived an hour or more late, which a short layover will not absorb. If the onward flight is on a separate ticket, the risk sits with you.
Related
Where to go next
- ATL to ORD, every carrier and departure
- ORD to ATL, the return direction
- Delta Air Lines 2738 on the same route57.6%
- United Airlines 516 on the same route70.8%
- Delta Air Lines 1477 on the same route72.9%
- Delta Air Lines 1147 on the same route79.0%
- Delta Air Lines 2879 on the same route45.6%
- Delta Air Lines 1199 on the same route70.6%
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- Chicago O'Hare International (ORD) 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.