Carrier route record

F9LGA→DFW

Frontier Airlines · New York to Dallas-Fort Worth

Flights: 291
Period: July 2025 to June 2026
Share of route: 4%
Carriers: 4

Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Frontier Airlines.

Frontier on LGA to DFW draws a C−. About one flight in three 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 291 flights. The strongest carrier on the route with a full sample, Delta Air Lines, flew 1,955 at 71.0% on time.

The national on-time rate over the same period is 77.6%, so Frontier on LGA to DFW runs 11 points behind the country as a whole. Across a thousand flights that is about 114 extra late arrivals.

On time

66.2%

Arrivals under 15 minutes late, of 272 completed flights

Avg delay

114 min

Across delayed arrivals only, not all flights

Cancelled

6.53%

National rate is 1.81%

Whole route

70.8%

Every carrier on LGA to DFW, 6,782 flights

These figures cover 291 flights between July 2025 and June 2026. Beyond the headline rate, 15.8% 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.

Carrier by carrier

Frontier against every carrier on LGA to DFW

Frontier flew 291 of the 6,782 flights on LGA to DFW, about 4% of it. Its 66.2% on time is 5 points worse than the route as a whole, which runs 70.8%. Ranked by on-time rate it is last of four carriers on the route, where the range runs from Delta at 71.0% to Frontier at 66.2%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.

The two carriers here are closely matched: half a point separate the best from the worst. At that spread, schedule and price are better tie-breakers than reliability. Sample sizes are shown so you can see which rows are worth weighing.

On-time performance by carrier on LGA to DFW
Airline	Flights	On time	Avg delay	Cancelled	Grade
Delta Air Lines	1,955	71.0%	74 min	4.35%	C−
American Airlines	4,295	71.0%	90 min	4.98%	C−
Spirit Airlinesthin sample	241	69.6%	74 min	7.05%	C−
Frontier Airlines (this page)thin sample	291	66.2%	114 min	6.53%	C−

American Airlines cancels 5.0% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.

Flight by flight

Frontier flight numbers on LGA to DFW

F9 342322:0065.3% · 267 flights

Departure window

When Frontier runs best on this route

Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 291 flights.

The overnight block holds up unusually well at 66.4% on time across 287 flights. Red-eyes fly into empty airspace and empty gates, and they are the first rotation of the aircraft's day rather than the last. The 8pm–5am window is the busiest, with 287 flights scheduled in it.

Across the year

Frontier on LGA to DFW through the year

Jul–Sep 202590 flights77.6%
Oct–Dec 202574 flights64.8%
Jan–Mar 202643 flights55.0%
Apr–Jun 202684 flights60.5%

Scale runs 45% to 85%. Rows with fewer than 30 flights show a dash.

Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 66.2% on time across 291 flights.

Frontier on LGA to DFW did not run the same all year. Its best quarter was Jul–Sep 2025 at 77.6% on time and its weakest Jan–Mar 2026 at 55.0%, a swing of 23 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.

Across the week, Saturday is the strongest day at 80.0% on time and Thursday the weakest at 59.5%. 21 points is a smaller lever than departure hour, but it is free.

Delay causes

Why Frontier runs late on this route

One category carries most of the weight here. Late-arriving aircraft accounts for 70% of the 10,000 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.

Late-arriving aircraft
70%
National Airspace System
23%
Carrier
6%
Extreme weather
1%

70% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 10,000 reported delay minutes here, that single category outweighs weather by 70 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 10,460 reported delay minutes.

Cancellations run at 6.53%, against 1.81% nationally. That is about one flight in fifteen 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 stage length

What a delay here costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 15.8% 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.

The return leg is a different operation and performs like one: it runs 62.6% on time across 291 flights, 4 points below this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 4 points of difference.

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 Frontier on LGA to DFW

Put together: the delay figures matter less here than the 6.53% cancellation rate. A late arrival costs you close to two hours; a cancelled flight costs you the day. Book the 8pm–5am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 272 completed flights over 12 months sit behind that.

Where to go next

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.

Key figures