Flight number record
F9 1264
Frontier Airlines · Atlanta to Detroit
- Route
- ATL → DTW
- Departs
- 06:00
- Flights
- 279
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s F9 1264, check with Frontier Airlines.
F9 1264 draws a C+. About one flight in three arrives at least 15 minutes late, and the typical late arrival is a little over an hour behind schedule. Build slack into anything you connect to. That rests on 279 flights, with a median arrival 2 minutes early.
The national on-time rate over the same period is 77.3%, so F9 1264 runs 11 points behind the country as a whole. Across a thousand flights that is about 105 extra late arrivals.
Key figures
On time
66.8%
Arrivals under 15 minutes late, of 277 completed flights
Avg delay
70 min
Across delayed arrivals only, not all flights
Cancelled
0.72%
National rate is 1.89%
1 hour+ late
13.7%
National rate is 8.3%
These figures cover 279 flights between September 2025 and August 2026. Beyond the headline rate, 13.7% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When F9 1264 flies
F9 1264 flies ATL to DTW without a single fixed slot. Its most common scheduled departure was 06:00, used on 47 of 279 flights, with 22:35 (44 flights) next.
- Departs 06:0047 flights16.8%
- Departs 22:3544 flights15.8%
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 06:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and F9 1264 runs 23 points worse at 66.8%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
F9 1264 next to ATL to DTW
Every carrier on ATL to DTW combined arrived on time 76.4% of the time across 4,821 flights, so F9 1264 is 10 points behind it. Frontier flew 546 flights on the same city pair under all its flight numbers, including this one, and those ran 64.6% on time. Across its whole network Frontier Airlines managed 72.7%, which this flight trails by 6 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| F9 1264thin sample | 279 | 66.8% | 70 min | 0.72% | C+ |
| All Frontier Airlines on ATL–DTW | 546 | 64.6% | 68 min | 1.28% | D |
| All carriers on ATL–DTW | 4,821 | 76.4% | 64 min | 0.81% | B+ |
| Frontier Airlines, whole network | 213,022 | 72.7% | 84 min | 2.05% | C |
Across the year
F9 1264 quarter by quarter
F9 1264 did not run the same all year. Its best quarter was Jul–Sep 2025 at 90.0% on time and its weakest Jul–Sep 2026 at 34.4%, a swing of 56 points on roughly 56 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 flights90.0%
- Oct–Dec 202580 flights75.9%
- Jan–Mar 202646 flights84.8%
- Apr–Jun 202661 flights62.3%
- Jul–Sep 202662 flights34.4%
Scale runs 25% to 95%.
By weekday, F9 1264 did best on Tuesday at 78.8% on time and worst on Monday at 50.0%. Each day rests on about 40 flights, so a gap of 29 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late F9 1264 runs when it is late
The 92 late arrivals split 25 under half an hour, 29 between 30 and 60 minutes, and 38 an hour or more.
- 15+ min early60 flights21.7%
- Within 15 min125 flights45.1%
- 15–29 min late25 flights9.0%
- 30–59 min late29 flights10.5%
- 1–2 hours late29 flights10.5%
- 2+ hours late9 flights3.2%
Scale runs 0% to 100%.
Share of 277 completed flights by arrival against schedule.
13 of 100 late departures made up the time and arrived on time, 13% of them. Only 5 left on time and still arrived late.
The worst days
Worst days for F9 1264
The latest arrival of the period was on 29 June 2026, 13 hours 28 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 29 June 2026 | 13 hours 28 minutes | Late-arriving aircraft |
| 1 January 2026 | 4 hours 36 minutes | Late-arriving aircraft |
| 8 November 2025 | 3 hours 2 minutes | Late-arriving aircraft |
| 28 October 2025 | 2 hours 50 minutes | Carrier |
| 27 July 2026 | 2 hours 45 minutes | Late-arriving aircraft |
Delay causes
Why F9 1264 runs late
Late-arriving aircraft accounts for 74% of the 6,433 delay minutes carriers reported here, and the remaining four split what is left.
- 74%Late-arriving aircraft
- 20%Carrier
- 5%National Airspace System
- 1%Extreme weather
74% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 6,433 reported delay minutes here, that single category outweighs weather by 74 to one. The split is drawn from 6,433 delay minutes reported on F9 1264.
Cancellations are rare at 0.72%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
13.7% 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 594 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 279 flights under F9 1264 in the data flew ATL to DTW. 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. 279 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 1264
For a booking, F9 1264 is a flight to put a long connection behind. 13.7% 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 DTW, every carrier and departure
- DTW to ATL, the return direction
- Delta Air Lines 1298 on the same route84.3%
- Delta Air Lines 1031 on the same route83.9%
- Delta Air Lines 1240 on the same route82.7%
- Delta Air Lines 1646 on the same route90.6%
- Delta Air Lines 1005 on the same route75.2%
- Delta Air Lines 2940 on the same route72.6%
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- Detroit Metropolitan Wayne County (DTW) 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.