Flight profile · Frontier Airlines
F91441
Atlanta (ATL) to Chicago (ORD) · scheduled 6:35 AM – 7:53 AM
How F91441 performs
616 operations, May 2024 – August 2026.
Between its first and last recorded date on ATL → ORD, F91441 averaged about 5 operations a week (616 in 837 days, cancelled ones included).
F91441 arrived on time 69.0% of the time, against 73.6% for all ATL → ORD flights, so this departure is 4.6 percentage points worse than the route as a whole. Against Frontier Airlines’ own flights on this route it is 7.4 points better.
Source: US DOT Bureau of Transportation Statistics · 616 operations, May 2024 – August 2026 · If F91441 is cancelled or significantly changed, DOT’s automatic refund rule may entitle you to your money back. The refund checker walks through eligibility.
Where F91441 is right now
A live reading, only if you ask for it. It is not part of the reliability record above.
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Against the rest of the route
| Flight or route | On time | Cancelled | Median delay | Severe | Flights |
|---|---|---|---|---|---|
| F91441 | 69.0% | 1.62% | -1 min | 13.4% | 616 |
| Frontier Airlines on ATL → ORD | 61.6% | 3.05% | 3 min | 17.9% | 1,739 |
| All ATL → ORD flights | 73.6% | 1.69% | -2 min | 9.9% | 19,214 |
F91441 cancelled 10 of 616 operations (1.62%), close to the 1.69% for ATL → ORD.
13.4% of F91441’s arrivals were an hour or more late, against 9.9% across ATL → ORD, so the long delays are more common on this number than on the route.
Source: FlyerIntel analysis of US DOT BTS data · May 2024 – August 2026
Why F91441 runs late
Where US DOT attributed the delay minutes on this flight.
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding and fueling, all within the carrier’s control
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for F91441 on ATL → ORD. Only delays of 15 minutes or more are attributed. What the five causes mean
Source: US DOT Bureau of Transportation Statistics · Data covering May 2024 – August 2026
Does a late aircraft delay this flight?
How often the plane that flies F91441 comes in late, and what that does to the departure.
When the aircraft came in 15 or more minutes late, F91441 pushed back an average of 40 minutes late; when it came in on time or early, an average of 5 minutes late.
Matched by tail number to the aircraft’s previous flight into ATL: 561 of 607 departures. Unknown, cancelled or diverted inbounds and gaps over 12 hours are left out.
Against the network at the same turn length
| Share of departures | Inbound landed 15+ late | Left 15+ late after a late inbound | Left 15+ late after an on-time inbound |
|---|---|---|---|
| F91441 | 34% | 58% | 17% |
| Network, same turn | 17% | 69% | 9% |
70 scheduled minutes is enough to clean and board when the aircraft is on time, with little to spare when it is not.
The network row is every flight with a scheduled turn of 60 to 89 minutes. How often F91441’s aircraft landed 15 or more minutes late is higher than the network’s and, once the aircraft was late, how often F91441 left 15 or more minutes late is lower than the network’s.
Source: US DOT Bureau of Transportation Statistics · Data covering May 2024 – August 2026
From pushback to gate
When it leaves ATL late, does that still matter by the time it reaches ORD?
F91441 pushes back an average of 23.3 minutes late and reaches the gate at ORD an average of 18.4 minutes late. The 4.9 minutes between those two figures are slack the published schedule already carries, so a late pushback is partly, not fully, made up before the gate. It spends 20.9 minutes on the taxiways at ATL, 5.3 minutes longer than a typical ATL departure in the same hour.
On arrival at ORD, F91441 spends 18.6 min taxiing from touchdown to the gate — ground time a connecting passenger sits through before they can even leave the aircraft, on top of however late the flight itself ran. That is about what any arrival at ORD spends on the ground before reaching the gate.
Taxi-out is gate to wheels up and sits inside the scheduled block; the hourly comparison is 20,082 ATL departures. Taxi-in is landing to gate, set against 985,848 arrivals at ORD. More on taxi time.
Source: FlyerIntel analysis of US DOT BTS data · May 2024 – August 2026
The hour it leaves ATL
F91441 has one departure time, 6:35 AM, so this is what that hour at ATL is worth.
On-time arrival rate. 20,082 departures from ATL are scheduled in the 6 AM–7 AM hour over the period, against 1,039,468 across the whole day.
F91441 is scheduled out of ATL at 6:35 AM, in the 6 AM–7 AM bank. Departures from ATL in that hour arrive on time 89.4% of the time against 78.6% across the airport’s whole day — the slot alone is worth 10.7 points better before anything about this particular flight is considered.
Both airport figures cover every destination from ATL, so they describe the slot, not this journey; the route comparison is above. Why the hour matters.
Source: FlyerIntel analysis of US DOT BTS data · May 2024 – August 2026 · Hours below 120 departures are not scored.
Other routes F91441 has flown
Carriers reassign flight numbers. F91441 also served this other city pair in the period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| SLC→PHX Salt Lake City to Phoenix | January 4, 2024 | 1 | — |
The figures above describe only ATL → ORD, the route F91441 flies now.
When it goes wrong
The average describes a usual day. This is the day that ruins a connection.
73 min late
against a median of 1 min early
F91441 has an average that understates its risk: a typical arrival is 1 min early, but the worst tenth are 74 minutes worse than that. If the trip has something unmissable at the end of it, the median is the wrong number to plan against.
Percentiles over 616 operations; cancelled and diverted flights are counted separately.
Source: US DOT Bureau of Transportation Statistics · Data covering May 2024 – August 2026
Other flights on this route
Same airports, same journey, different odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| DL1178 | Delta Air Lines | 88.2% | 6 min early | 942 |
| DL1147 | Delta Air Lines | 80.6% | 3 min early | 1,076 |
| UA516 | United Airlines | 77.6% | 6 min early | 1,019 |
| DL1199 | Delta Air Lines | 73.9% | 2 min early | 763 |
| DL1477 | Delta Air Lines | 72.2% | 1 min late | 1,008 |
| F91441 this flight | Frontier Airlines | 69.0% | 1 min early | 616 |
| DL2738 | Delta Air Lines | 68.2% | 4 min late | 1,059 |
| UA1046 | United Airlines | 67.7% | 4 min late | 949 |
| DL2879 | Delta Air Lines | 54.4% | 11 min late | 918 |
Among the 9 departures listed, F91441 has the 6th highest on-time rate, 19.2 points behind the best. Every departure here has at least 600 operations; the other rows are the most punctual on the route, not all of them.
Data and methodology
Calculated by FlyerIntel from 616 records of F91441 operating ATL → ORD, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule; cancelled and diverted flights are reported separately, not in the on-time rate.
Full methodology · Data sources · Report a problem
Related research: Most and Least Reliable Flight Numbers · The Delay You Inherit · Making Up Time in the Air
Analysis last recomputed