Flight number record

DL 655

Delta Air Lines · Fort Lauderdale to Detroit

Route: FLL → DTW
Departs: 11:30
Flights: 365
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 655, check with Delta Air Lines.

DL 655 lands a B, 4 points better than the national rate of 77.6%. About one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That is a workable record, not a spotless one. That rests on 365 flights, with a median arrival 7 minutes early.

On time

81.4%

Arrivals under 15 minutes late, of 361 completed flights

Avg delay

69 min

Across delayed arrivals only, not all flights

Cancelled

1.10%

National rate is 1.81%

1 hour+ late

5.3%

National rate is 8.1%

These figures cover 365 flights between July 2025 and June 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.

Schedule

When DL 655 flies

DL 655 flies FLL to DTW without a single fixed slot. Its most common scheduled departure was 11:30, used on 90 of 365 flights, with 11:31 (60 flights) and 11:45 (38 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 11:3090 flights24.7%
Departs 11:3160 flights16.4%
Departs 11:4538 flights10.4%

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 11:30 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and DL 655 runs 3 points better at 81.4%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

DL 655 next to FLL to DTW

Every carrier on FLL to DTW combined arrived on time 73.2% of the time across 2,719 flights, so DL 655 is 8 points ahead of it. Delta flew 1,817 flights on the same city pair under all its flight numbers, including this one, and those ran 79.3% on time. Across its whole network Delta Air Lines managed 81.6%, close to this flight's figure.

DL 655 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 655	365	81.4%	69 min	1.10%	B
All Delta Air Lines on FLL–DTW	1,817	79.3%	75 min	1.27%	B
All carriers on FLL–DTW	2,719	73.2%	76 min	1.80%	C
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 655 quarter by quarter

DL 655 did not run the same all year. Its best quarter was Apr–Jun 2026 at 88.9% on time and its weakest Jan–Mar 2026 at 67.8%, a swing of 21 points on roughly 91 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 202592 flights87.0%
Oct–Dec 202592 flights82.0%
Jan–Mar 202690 flights67.8%
Apr–Jun 202691 flights88.9%

Scale runs 60% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, DL 655 did best on Wednesday at 88.2% on time and worst on Sunday at 71.2%. Each day rests on about 52 flights, so a gap of 17 points is worth noticing but could still narrow in another year.

Delay causes

Why DL 655 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 4,610 reported delay minutes.

Carrier
41%
Late-arriving aircraft
38%
National Airspace System
16%
Extreme weather
5%

38% 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 4,610 reported delay minutes here, that single category outweighs weather by 8 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 4,610 delay minutes reported on DL 655.

Cancellations sit at 1.10% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

5.3% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says 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 1,127 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 same number turns up on one other city pair in the data, including DTW to FLL (177), but none flew often enough under DL 655 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to FLL to DTW only.

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.

What to do with this

Booking DL 655

For a booking, read DL 655 as 81.4% on time with 1.10% cancelled over 365 flights. Those are rates from the past twelve months, not a forecast for any particular day.

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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures