Flight number record
F9 3423
Frontier Airlines · New York to Dallas-Fort Worth
- Route
- LGA → DFW
- Departs
- 22:00
- Flights
- 269
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s F9 3423, check with Frontier Airlines.
F9 3423 draws a D−. Roughly one flight in two arrives at least 15 minutes late, and the typical late arrival is close to two hours behind schedule. Build slack into anything you connect to. That rests on 269 flights, with a median arrival 5 minutes late.
The national on-time rate over the same period is 77.3%, so F9 3423 runs 19 points behind the country as a whole. Across a thousand flights that is about 192 extra late arrivals.
Key figures
On time
58.1%
Arrivals under 15 minutes late, of 248 completed flights
Avg delay
110 min
Across delayed arrivals only, not all flights
Cancelled
7.81%
National rate is 1.89%
1 hour+ late
18.5%
National rate is 8.3%
These figures cover 269 flights between September 2025 and August 2026. Beyond the headline rate, 18.5% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When F9 3423 flies
F9 3423 flies LGA to DFW without a single fixed slot. Its most common scheduled departure was 22:00, used on 117 of 269 flights, with 22:55 (108 flights) next.
- Departs 22:00117 flights43.5%
- Departs 22:55108 flights40.1%
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 22:00 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and F9 3423 runs 12 points worse at 58.1%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
F9 3423 next to LGA to DFW
Every carrier on LGA to DFW combined arrived on time 70.1% of the time across 6,646 flights, so F9 3423 is 12 points behind it. Across its whole network Frontier Airlines managed 72.7%, which this flight trails by 15 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| F9 3423thin sample | 269 | 58.1% | 110 min | 7.81% | D− |
| All Frontier Airlines on LGA–DFWthin sample | 291 | 59.3% | 108 min | 7.22% | D− |
| All carriers on LGA–DFW | 6,646 | 70.1% | 88 min | 5.13% | C− |
| Frontier Airlines, whole network | 213,022 | 72.7% | 84 min | 2.05% | C |
Across the year
F9 3423 quarter by quarter
F9 3423 did not run the same all year. Its best quarter was Oct–Dec 2025 at 65.1% on time and its weakest Jul–Sep 2026 at 46.3%, a swing of 19 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 202526 flights—
- Oct–Dec 202566 flights65.1%
- Jan–Mar 202638 flights51.4%
- Apr–Jun 202679 flights60.6%
- Jul–Sep 202660 flights46.3%
Scale runs 40% to 70%. Rows with fewer than 30 flights show a dash.
By weekday, F9 3423 did best on Wednesday at 65.1% on time and worst on Sunday at 47.1%. Each day rests on about 38 flights, so a gap of 18 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late F9 3423 runs when it is late
F9 3423 often beats the schedule: 74 of 248 completed flights, 30%, arrived 15 minutes or more early. The 104 late arrivals split 25 under half an hour, 33 between 30 and 60 minutes, and 46 an hour or more.
- 15+ min early74 flights29.8%
- Within 15 min70 flights28.2%
- 15–29 min late25 flights10.1%
- 30–59 min late33 flights13.3%
- 1–2 hours late26 flights10.5%
- 2+ hours late20 flights8.1%
Scale runs 0% to 100%.
Share of 248 completed flights by arrival against schedule.
32 of 122 late departures made up the time and arrived on time, 26% of them. In the other direction, 14 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 3423
The latest arrival of the period was on 19 December 2025, 19 hours 4 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The five worst days are spread across December, November, September, August and July, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 19 December 2025 | 19 hours 4 minutes | Late-arriving aircraft |
| 11 November 2025 | 15 hours 59 minutes | National Airspace System |
| 19 September 2025 | 14 hours 55 minutes | National Airspace System |
| 20 August 2026 | 13 hours 26 minutes | Carrier |
| 13 July 2026 | 12 hours 9 minutes | Late-arriving aircraft |
Delay causes
Why F9 3423 runs late
Late-arriving aircraft accounts for 65% of the 11,000 delay minutes carriers reported here, and the remaining four split what is left.
- 65%Late-arriving aircraft
- 22%National Airspace System
- 13%Carrier
- 1%Extreme weather
65% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 11,000 reported delay minutes here, that single category outweighs weather by 65 to one. The split is drawn from 11,413 delay minutes reported on F9 3423.
Cancellations run at 7.81%, against 1.89% nationally. That is about one flight in twelve cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and routes
What a delay on this flight costs
18.5% 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 1,389 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 269 flights under F9 3423 in the data flew LGA 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. 269 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 3423
For a booking, the cancellation rate is the figure to plan around on F9 3423: 7.81% of its 269 scheduled flights did not operate. A late arrival costs close to two hours, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- LGA to DFW, every carrier and departure
- DFW to LGA, the return direction
- American Airlines 1987 on the same route79.3%
- Delta Air Lines 846 on the same route63.7%
- Delta Air Lines 873 on the same route75.9%
- American Airlines 1056 on the same route64.5%
- LaGuardia (LGA) 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.