Flight number record

DL 745

Delta Air Lines · Fort Lauderdale to Salt Lake City

Route: FLL → SLC
Departs: 17:45
Flights: 334
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 745, check with Delta Air Lines.

DL 745 lands a B+, about a point worse than the national rate of 77.6%. About one flight in four arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That is a workable record, not a spotless one. That rests on 334 flights, with a median arrival 6 minutes early.

On time

76.5%

Arrivals under 15 minutes late, of 332 completed flights

Avg delay

94 min

Across delayed arrivals only, not all flights

Cancelled

0.60%

National rate is 1.81%

1 hour+ late

9.3%

National rate is 8.1%

These figures cover 334 flights between July 2025 and June 2026. Beyond the headline rate, 9.3% 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 DL 745 flies

DL 745 flies FLL to SLC without a single fixed slot. Its most common scheduled departure was 17:45, used on 100 of 334 flights, with 07:07 (41 flights) and 17:26 (38 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 17:45100 flights29.9%
Departs 07:0741 flights12.3%
Departs 17:2638 flights11.4%

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 17:45 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and DL 745 runs 8 points better at 76.5%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

DL 745 next to FLL to SLC

Every carrier on FLL to SLC combined arrived on time 75.9% of the time across 376 flights, so DL 745 is about level with it. Across its whole network Delta Air Lines managed 81.6%, which this flight trails by 5 points.

DL 745 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 745thin sample	334	76.5%	94 min	0.60%	B+
All Delta Air Lines on FLL–SLC	366	76.4%	89 min	0.55%	B+
All carriers on FLL–SLC	376	75.9%	90 min	0.53%	B+
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 745 quarter by quarter

DL 745 did not run the same all year. Its best quarter was Jul–Sep 2025 at 83.5% on time and its weakest Jan–Mar 2026 at 66.3%, a swing of 17 points on roughly 84 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 flights83.5%
Oct–Dec 202592 flights81.5%
Jan–Mar 202690 flights66.3%
Apr–Jun 202660 flights73.3%

Scale runs 60% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, DL 745 did best on Wednesday at 87.5% on time and worst on Saturday at 69.6%. Each day rests on about 48 flights, so a gap of 18 points is worth noticing but could still narrow in another year.

Delay causes

Why DL 745 runs late

One category carries most of the weight here. Carrier accounts for 59% of the 7,294 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.

Carrier
59%
Late-arriving aircraft
23%
National Airspace System
13%
Extreme weather
4%

The largest share of delay minutes, 59%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 4,305 of the 7,294 delay minutes reported here. The split is drawn from 7,294 delay minutes reported on DL 745.

Cancellations are rare at 0.60%, below the national 1.81% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.

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. 9.3% 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.

At 2,084 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.

The same number turns up on two other city pairs in the data, including SLC to FLL (215) and ATL to ONT (31), but none flew often enough under DL 745 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to FLL to SLC only.

One caution: this is a thin sample. 334 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 745

For a booking, read DL 745 as 76.5% on time with 0.60% cancelled over 334 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