Flight number record

DL 379

Delta Air Lines · New York to Fort Myers

Route: LGA → RSW
Departs: 07:15
Flights: 365
Period: September 2025 to August 2026

Historical statistics for September 2025 to August 2026, not live status. For today’s DL 379, check with Delta Air Lines.

DL 379 lands a B−, 7 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 365 flights, with a median arrival 7 minutes early.

Set against the rest of the country, DL 379's record is 7 points better than the US average of 77.3%. That gap is worth roughly 65 fewer late arrivals for every thousand flights.

On time

83.8%

Arrivals under 15 minutes late, of 340 completed flights

Avg delay

71 min

Across delayed arrivals only, not all flights

Cancelled

6.03%

National rate is 1.89%

1 hour+ late

5.3%

National rate is 8.3%

These figures cover 365 flights between September 2025 and August 2026. The median arrival is 7 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.

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Schedule

When DL 379 flies

DL 379 flies LGA to RSW without a single fixed slot. Its most common scheduled departure was 07:15, used on 110 of 365 flights, with 07:00 (69 flights) and 07:10 (65 flights) next.

Departs 07:15110 flights30.1%
Departs 07:0069 flights18.9%
Departs 07:1065 flights17.8%

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 07:15 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and DL 379 runs 6 points worse at 83.8%. 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

DL 379 next to LGA to RSW

Every carrier on LGA to RSW combined arrived on time 73.3% of the time across 869 flights, so DL 379 is 11 points ahead of it. Delta flew 669 flights on the same city pair under all its flight numbers, including this one, and those ran 74.4% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 3 points.

DL 379 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 379	365	83.8%	71 min	6.03%	B−
All Delta Air Lines on LGA–RSW	669	74.4%	82 min	4.78%	C−
All carriers on LGA–RSW	869	73.3%	78 min	4.72%	C−
Delta Air Lines, whole network	1,039,517	81.1%	71 min	1.74%	B

Across the year

DL 379 quarter by quarter

DL 379 did not run the same all year. Its best quarter was Jul–Sep 2025 at 96.7% on time and its weakest Jul–Sep 2026 at 76.8%, a swing of 20 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 202530 flights96.7%
Oct–Dec 202592 flights84.6%
Jan–Mar 202690 flights83.1%
Apr–Jun 202691 flights83.7%
Jul–Sep 202662 flights76.8%

Scale runs 70% to 100%.

By weekday, DL 379 did best on Wednesday at 90.2% on time and worst on Monday at 73.9%. Each day rests on about 52 flights, so a gap of 16 points is worth noticing but could still narrow in another year.

Arrival by arrival

How late DL 379 runs when it is late

DL 379 often beats the schedule: 92 of 340 completed flights, 27%, arrived 15 minutes or more early. The 55 late arrivals split 19 under half an hour, 18 between 30 and 60 minutes, and 18 an hour or more.

15+ min early92 flights27.1%
Within 15 min193 flights56.8%
15–29 min late19 flights5.6%
30–59 min late18 flights5.3%
1–2 hours late7 flights2.1%
2+ hours late11 flights3.2%

Scale runs 0% to 100%.

Share of 340 completed flights by arrival against schedule.

Time lost at the gate mostly stays lost. Of 32 departures that left 15 minutes late or more, only 2 made it up before arrival. In the other direction, 25 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 RSW.

The worst days

Worst days for DL 379

The latest arrival of the period was on 12 June 2026, 5 hours 23 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. The five worst days are spread across June, August, February and October, with no single month standing out.

The latest arrivals of DL 379 in the period
Date	Arrived late by	Largest filed cause
12 June 2026	5 hours 23 minutes	National Airspace System
5 August 2026	4 hours 45 minutes	Late-arriving aircraft
8 February 2026	4 hours 27 minutes	Extreme weather
2 October 2025	4 hours 5 minutes	Carrier
25 February 2026	3 hours 58 minutes	Carrier

Delay causes

Why DL 379 runs late

Carrier accounts for 44% of the 3,914 delay minutes carriers reported here, and the remaining four split what is left.

Carrier
44%
National Airspace System
37%
Late-arriving aircraft
12%
Extreme weather
7%

The largest share of delay minutes, 44%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,729 of the 3,914 delay minutes reported here. The split is drawn from 3,914 delay minutes reported on DL 379.

Cancellations run at 6.03%, against 1.89% nationally. That is roughly 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 routes

What a delay on this flight costs

5.3% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.

The 1,080 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.

DL 379 is not only a LGA to RSW flight. It also flew RSW to LGA (251 flights, 73.7% on time) often enough to be scored on its own. Airlines attach one number to several legs of an aircraft's day, and each leg keeps its own record here, so check which city pair is on your booking before reading a rate.

One caution: this is a thin sample. 365 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.

Other routes flown as DL 379
Also flown as	Flights	On time	Avg delay	Cancelled	Grade
RSW to LGAthin sample	251	73.7%	93 min	7.57%	C−

What to do with this

Booking DL 379

For a booking, the cancellation rate is the figure to plan around on DL 379: 6.03% of its 365 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.

Where to go next

A flight number here means Delta Air Lines’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 22 October 2026; recomputed monthly. How this data is collected.

Key figures