Flight number record
F9 3021
Frontier Airlines · Atlanta to Dallas-Fort Worth
- Route
- ATL → DFW
- Departs
- 10:54
- Flights
- 268
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s F9 3021, check with Frontier Airlines.
F9 3021 draws a C. About one flight in three arrives at least 15 minutes late, and the typical late arrival is about an hour behind schedule. Build slack into anything you connect to. That rests on 268 flights, with a median arrival 1 minute early.
The national on-time rate over the same period is 77.3%, so F9 3021 runs 10 points behind the country as a whole. Across a thousand flights that is about 103 extra late arrivals.
Key figures
On time
67.0%
Arrivals under 15 minutes late, of 264 completed flights
Avg delay
64 min
Across delayed arrivals only, not all flights
Cancelled
1.12%
National rate is 1.89%
1 hour+ late
11.7%
National rate is 8.3%
These figures cover 268 flights between September 2025 and August 2026. Beyond the headline rate, 11.7% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When F9 3021 flies
F9 3021 flies ATL to DFW without a single fixed slot. Its most common scheduled departure was 10:54, used on 65 of 268 flights, with 06:00 (40 flights) next.
- Departs 10:5465 flights24.3%
- Departs 06:0040 flights14.9%
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 10:54 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and F9 3021 runs 17 points worse at 67.0%. 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 3021 next to ATL to DFW
Every carrier on ATL to DFW combined arrived on time 73.9% of the time across 6,672 flights, so F9 3021 is 7 points behind it. Frontier flew 934 flights on the same city pair under all its flight numbers, including this one, and those ran 59.8% 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 3021thin sample | 268 | 67.0% | 64 min | 1.12% | C |
| All Frontier Airlines on ATL–DFW | 934 | 59.8% | 80 min | 1.71% | D |
| All carriers on ATL–DFW | 6,672 | 73.9% | 82 min | 2.50% | C |
| Frontier Airlines, whole network | 213,022 | 72.7% | 84 min | 2.05% | C |
Across the year
F9 3021 quarter by quarter
F9 3021 did not run the same all year. Its best quarter was Jan–Mar 2026 at 74.6% on time and its weakest Jul–Sep 2026 at 60.7%, a swing of 14 points on roughly 67 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 202520 flights—
- Oct–Dec 202546 flights61.4%
- Jan–Mar 202665 flights74.6%
- Apr–Jun 202681 flights64.2%
- Jul–Sep 202656 flights60.7%
Scale runs 50% to 80%. Rows with fewer than 30 flights show a dash.
By weekday, F9 3021 did best on Tuesday at 83.3% on time and worst on Monday at 43.8%. Each day rests on about 38 flights, so a gap of 40 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late F9 3021 runs when it is late
The 87 late arrivals split 28 under half an hour, 28 between 30 and 60 minutes, and 31 an hour or more.
- 15+ min early55 flights20.8%
- Within 15 min122 flights46.2%
- 15–29 min late28 flights10.6%
- 30–59 min late28 flights10.6%
- 1–2 hours late21 flights8.0%
- 2+ hours late10 flights3.8%
Scale runs 0% to 100%.
Share of 264 completed flights by arrival against schedule.
27 of 96 late departures made up the time and arrived on time, 28% of them. In the other direction, 18 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 DFW.
The worst days
Worst days for F9 3021
The latest arrival of the period was on 16 May 2026, 7 hours 58 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The five worst days are spread across May, November, July and December, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 16 May 2026 | 7 hours 58 minutes | Carrier |
| 20 November 2025 | 4 hours 25 minutes | National Airspace System |
| 13 July 2026 | 3 hours 59 minutes | Late-arriving aircraft |
| 21 December 2025 | 2 hours 53 minutes | Late-arriving aircraft |
| 4 May 2026 | 2 hours 45 minutes | Carrier |
Delay causes
Why F9 3021 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 5,579 reported delay minutes.
- 40%Late-arriving aircraft
- 38%Carrier
- 19%National Airspace System
- 2%Extreme weather
40% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 5,579 reported delay minutes here, that single category outweighs weather by 16 to one. The split is drawn from 5,579 delay minutes reported on F9 3021.
Cancellations sit at 1.12% against a national 1.89%, which is ordinary. Diversions add another 0.37%.
Connections and routes
What a delay on this flight costs
11.7% 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 731 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 268 flights under F9 3021 in the data flew ATL to DFW. 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. 268 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 3021
For a booking, F9 3021 is one of the weaker ways to fly ATL to DFW: 7 points below the route as a whole. If the schedule allows, compare it with the other departures listed on the route page before settling on this one.
Related
Where to go next
- ATL to DFW, every carrier and departure
- DFW to ATL, the return direction
- American Airlines 1567 on the same route86.4%
- Delta Air Lines 818 on the same route79.7%
- Delta Air Lines 921 on the same route76.1%
- Delta Air Lines 961 on the same route87.8%
- Delta Air Lines 839 on the same route79.8%
- Delta Air Lines 414 on the same route81.5%
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- Dallas/Fort Worth International (DFW) 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.