Flight number record
F9 3424
Frontier Airlines · Dallas-Fort Worth to New York
- Route
- DFW → LGA
- Departs
- 16:12
- Flights
- 291
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s F9 3424, check with Frontier Airlines.
F9 3424 draws a D−. Roughly 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 291 flights, with a median arrival right on schedule.
The national on-time rate over the same period is 77.6%, so F9 3424 runs 15 points behind the country as a whole. Across a thousand flights that is about 150 extra late arrivals.
Key figures
On time
62.6%
Arrivals under 15 minutes late, of 273 completed flights
Avg delay
77 min
Across delayed arrivals only, not all flights
Cancelled
5.50%
National rate is 1.81%
1 hour+ late
17.6%
National rate is 8.1%
These figures cover 291 flights between July 2025 and June 2026. Beyond the headline rate, 17.6% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Schedule
When F9 3424 flies
F9 3424 flies DFW to LGA without a single fixed slot. Its most common scheduled departure was 16:12, used on 63 of 291 flights, with 16:30 (35 flights) and 17:19 (34 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 16:1263 flights21.6%
- Departs 16:3035 flights12.0%
- Departs 17:1934 flights11.7%
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 16:12 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and F9 3424 runs 10 points worse at 62.6%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
F9 3424 next to DFW to LGA
Every carrier on DFW to LGA combined arrived on time 67.1% of the time across 6,786 flights, so F9 3424 is 4 points behind it. Across its whole network Frontier Airlines managed 73.2%, which this flight trails by 11 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| F9 3424thin sample | 291 | 62.6% | 77 min | 5.50% | D− |
| All Frontier Airlines on DFW–LGAthin sample | 291 | 62.6% | 77 min | 5.50% | D− |
| All carriers on DFW–LGA | 6,786 | 67.1% | 77 min | 4.82% | C− |
| Frontier Airlines, whole network | 205,332 | 73.2% | 84 min | 1.85% | C |
Across the year
F9 3424 quarter by quarter
F9 3424 did not run the same all year. Its best quarter was Jul–Sep 2025 at 69.8% on time and its weakest Apr–Jun 2026 at 55.3%, a swing of 15 points on roughly 73 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 202590 flights69.8%
- Oct–Dec 202574 flights62.0%
- Jan–Mar 202643 flights62.5%
- Apr–Jun 202684 flights55.3%
Scale runs 45% to 75%. Rows with fewer than 30 flights show a dash.
By weekday, F9 3424 did best on Saturday at 77.8% on time and worst on Sunday at 48.6%. Each day rests on about 42 flights, so a gap of 29 points is worth noticing but could still narrow in another year.
Delay causes
Why F9 3424 runs late
One category carries most of the weight here. National Airspace System accounts for 65% of the 7,836 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 65%National Airspace System
- 18%Late-arriving aircraft
- 12%Carrier
- 5%Extreme weather
65% 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 5,067 minutes out of 7,836, against a national NAS share of 21%. The split is drawn from 7,836 delay minutes reported on F9 3424.
Cancellations run at 5.50%, against 1.81% nationally. That is roughly one flight in twenty 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
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 17.6% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum 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. 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 291 flights under F9 3424 in the data flew DFW to LGA. 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. 291 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 3424
For a booking, the cancellation rate is the figure to plan around on F9 3424: 5.50% of its 291 scheduled flights did not operate. A late arrival costs a little over an hour, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- DFW to LGA, every carrier and departure
- LGA to DFW, the return direction
- American Airlines 1056 on the same route73.8%
- Delta Air Lines 869 on the same route68.0%
- Delta Air Lines 461 on the same route88.8%
- Delta Air Lines 878 on the same route77.5%
- Dallas/Fort Worth International (DFW) delay statistics
- LaGuardia (LGA) 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
- What a cancellation rate actually tells you (and what it hides)
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.