Flight number record
DL 655
Delta Air Lines · Fort Lauderdale to Detroit
- Route
- FLL → DTW
- Departs
- 11:30
- Flights
- 365
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 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 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 365 flights, with a median arrival 7 minutes early.
Key figures
On time
81.1%
Arrivals under 15 minutes late, of 360 completed flights
Avg delay
65 min
Across delayed arrivals only, not all flights
Cancelled
1.37%
National rate is 1.89%
1 hour+ late
4.7%
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 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 11:27 (57 flights) next.
- Departs 11:3090 flights24.7%
- Departs 11:3160 flights16.4%
- Departs 11:2757 flights15.6%
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 11:30 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and DL 655 runs 3 points better at 81.1%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
DL 655 next to FLL to DTW
Every carrier on FLL to DTW combined arrived on time 72.3% of the time across 2,705 flights, so DL 655 is 9 points ahead of it. Delta flew 1,810 flights on the same city pair under all its flight numbers, including this one, and those ran 78.6% on time. Across its whole network Delta Air Lines managed 81.1%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 655 | 365 | 81.1% | 65 min | 1.37% | B |
| All Delta Air Lines on FLL–DTW | 1,810 | 78.6% | 70 min | 1.55% | B |
| All carriers on FLL–DTW | 2,705 | 72.3% | 73 min | 2.14% | C |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 655 quarter by quarter
DL 655 did not run the same all year. Its best quarter was Jul–Sep 2025 at 93.3% on time and its weakest Jan–Mar 2026 at 67.8%, a swing of 26 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 flights93.3%
- Oct–Dec 202592 flights82.0%
- Jan–Mar 202690 flights67.8%
- Apr–Jun 202691 flights88.9%
- Jul–Sep 202662 flights82.0%
Scale runs 60% to 100%.
By weekday, DL 655 did best on Monday at 86.5% on time and worst on Sunday at 69.2%. Each day rests on about 52 flights, so a gap of 17 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 655 runs when it is late
The 68 late arrivals split 26 under half an hour, 25 between 30 and 60 minutes, and 17 an hour or more.
- 15+ min early86 flights23.9%
- Within 15 min206 flights57.2%
- 15–29 min late26 flights7.2%
- 30–59 min late25 flights6.9%
- 1–2 hours late7 flights1.9%
- 2+ hours late10 flights2.8%
Scale runs 0% to 100%.
Share of 360 completed flights by arrival against schedule.
9 of 60 late departures made up the time and arrived on time, 15% of them. 17 flights left on time and still arrived late.
The worst days
Worst days for DL 655
The latest arrival of the period was on 8 March 2026, 8 hours behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). On three of the five worst days the largest share was filed as a late-arriving aircraft.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 8 March 2026 | 8 hours | Carrier |
| 18 November 2025 | 4 hours 17 minutes | Carrier |
| 17 March 2026 | 4 hours 14 minutes | Late-arriving aircraft |
| 13 April 2026 | 4 hours 4 minutes | Late-arriving aircraft |
| 7 September 2025 | 4 hours 3 minutes | Late-arriving aircraft |
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 4,444 reported delay minutes.
- 41%Late-arriving aircraft
- 39%Carrier
- 15%National Airspace System
- 5%Extreme weather
41% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 4,444 reported delay minutes here, that single category outweighs weather by 8 to one. The split is drawn from 4,444 delay minutes reported on DL 655.
Cancellations sit at 1.37% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 4.7% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
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.
The same number turns up on one other city pair in the data, including DTW to FLL (239), 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 81.1% on time with 1.37% cancelled over 365 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- FLL to DTW, every carrier and departure
- DTW to FLL, the return direction
- Delta Air Lines 2631 on the same route91.3%
- Fort Lauderdale-Hollywood International (FLL) delay statistics
- Detroit Metropolitan Wayne County (DTW) delay statistics
- Delta Air Lines on-time record
- Every Delta Air Lines 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 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 ; recomputed monthly. How this data is collected.