Flight number record
F9 1596
Frontier Airlines · Chicago to Atlanta
- Route
- ORD → ATL
- Departs
- 05:01
- Flights
- 338
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s F9 1596, check with Frontier Airlines.
F9 1596 sits in the middle of the pack with a C. Close to three flights in four arrive on time by the DOT's definition, 3 points worse than the national rate of 77.6%. The late ones land a little over an hour behind schedule. That rests on 338 flights, with a median arrival 3 minutes early.
Key figures
On time
74.8%
Arrivals under 15 minutes late, of 329 completed flights
Avg delay
74 min
Across delayed arrivals only, not all flights
Cancelled
2.37%
National rate is 1.81%
1 hour+ late
7.3%
National rate is 8.1%
These figures cover 338 flights between July 2025 and June 2026. The median arrival is 3 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
Schedule
When F9 1596 flies
F9 1596 flies ORD to ATL without a single fixed slot. Its most common scheduled departure was 05:01, used on 64 of 338 flights, with 06:55 (50 flights) and 05:05 (38 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 05:0164 flights18.9%
- Departs 06:5550 flights14.8%
- Departs 05:0538 flights11.2%
Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 05:01 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and F9 1596 runs 15 points worse at 74.8%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
Against the route
F9 1596 next to ORD to ATL
Every carrier on ORD to ATL combined arrived on time 75.0% of the time across 6,409 flights, so F9 1596 is about level with it. Frontier flew 713 flights on the same city pair under all its flight numbers, including this one, and those ran 67.8% on time. Across its whole network Frontier Airlines managed 73.2%, which this flight beats by 2 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| F9 1596thin sample | 338 | 74.8% | 74 min | 2.37% | C |
| All Frontier Airlines on ORD–ATL | 713 | 67.8% | 100 min | 3.09% | C− |
| All carriers on ORD–ATL | 6,409 | 75.0% | 81 min | 2.26% | B |
| Frontier Airlines, whole network | 205,332 | 73.2% | 84 min | 1.85% | C |
Across the year
F9 1596 quarter by quarter
F9 1596 did not run the same all year. Its best quarter was Jul–Sep 2025 at 85.9% on time and its weakest Jan–Mar 2026 at 67.8%, a swing of 18 points on roughly 85 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 202580 flights85.9%
- Oct–Dec 202581 flights76.3%
- Jan–Mar 202687 flights67.8%
- Apr–Jun 202690 flights70.5%
Scale runs 60% to 90%. Rows with fewer than 30 flights show a dash.
By weekday, F9 1596 did best on Wednesday at 82.5% on time and worst on Sunday at 66.7%. Each day rests on about 48 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Delay causes
Why F9 1596 runs late
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 6,130 reported delay minutes.
- 39%National Airspace System
- 31%Carrier
- 27%Late-arriving aircraft
- 3%Extreme weather
39% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 2,387 minutes out of 6,130, against a national NAS share of 21%. The split is drawn from 6,130 delay minutes reported on F9 1596.
Cancellations sit at 2.37% against a national 1.81%, which is ordinary. Diversions add another 0.30%.
Connections and routes
What a delay on this flight costs
7.3% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
Every one of the 338 flights under F9 1596 in the data flew ORD to ATL. 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. 338 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 1596
For a booking, read F9 1596 as 74.8% on time with 2.37% cancelled over 338 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- ORD to ATL, every carrier and departure
- ATL to ORD, the return direction
- Delta Air Lines 1264 on the same route91.1%
- Delta Air Lines 1247 on the same route87.2%
- Delta Air Lines 1147 on the same route79.9%
- United Airlines 356 on the same route74.2%
- Delta Air Lines 1178 on the same route87.1%
- Delta Air Lines 2738 on the same route65.4%
- Chicago O'Hare International (ORD) delay statistics
- Hartsfield-Jackson Atlanta International (ATL) 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
- Worst months to fly in the US, ranked by the data
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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.