Flight number record

DL 328

Delta Air Lines · Seattle to Orlando

Route: SEA → MCO
Departs: 08:45
Flights: 365
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 328, check with Delta Air Lines.

DL 328 sits in the middle of the pack with a B. Close to three flights in four arrive on time by the DOT's definition, 3 points worse than the national rate of 77.6%. The late ones land a little over an hour behind schedule. That rests on 365 flights, with a median arrival right on schedule.

On time

75.1%

Arrivals under 15 minutes late, of 353 completed flights

Avg delay

75 min

Across delayed arrivals only, not all flights

Cancelled

2.47%

National rate is 1.81%

1 hour+ late

7.9%

National rate is 8.1%

These figures cover 365 flights between July 2025 and June 2026. On-time means an arrival less than 15 minutes after the scheduled gate time, the same threshold the Department of Transportation uses in its own reports. Cancelled and diverted flights are excluded from the on-time rate and counted separately, which is why the cancellation column matters on its own.

Schedule

When DL 328 flies

DL 328 flies SEA to MCO without a single fixed slot. Its most common scheduled departure was 08:45, used on 96 of 365 flights, with 08:50 (83 flights) and 08:40 (41 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 08:4596 flights26.3%
Departs 08:5083 flights22.7%
Departs 08:4041 flights11.2%

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 08:45 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and DL 328 runs 9 points worse at 75.1%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

DL 328 next to SEA to MCO

Every carrier on SEA to MCO combined arrived on time 81.0% of the time across 1,820 flights, so DL 328 is 6 points behind it. Delta flew 719 flights on the same city pair under all its flight numbers, including this one, and those ran 79.6% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight trails by 7 points.

DL 328 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 328	365	75.1%	75 min	2.47%	B
All Delta Air Lines on SEA–MCO	719	79.6%	59 min	1.53%	B
All carriers on SEA–MCO	1,820	81.0%	50 min	0.82%	B+
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 328 quarter by quarter

Quarter by quarter DL 328 held fairly steady: 71.1% in Jul–Sep 2025, 79.8% in Oct–Dec 2025, 71.4% in Jan–Mar 2026 and 77.8% in Apr–Jun 2026. A spread of 9 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights71.1%
Oct–Dec 202592 flights79.8%
Jan–Mar 202690 flights71.4%
Apr–Jun 202691 flights77.8%

Scale runs 65% to 85%. Rows with fewer than 30 flights show a dash.

By weekday, DL 328 ranged from 70.0% on Sunday to 80.8% on Tuesday. With about 52 flights behind each day, a spread of 11 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why DL 328 runs late

One category carries most of the weight here. Carrier accounts for 60% of the 6,565 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
60%
National Airspace System
30%
Extreme weather
6%
Late-arriving aircraft
4%

The largest share of delay minutes, 60%, 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 3,912 of the 6,565 delay minutes reported here. The split is drawn from 6,565 delay minutes reported on DL 328.

Cancellations sit at 2.47% against a national 1.81%, which is ordinary. Diversions add another 0.82%.

Connections and routes

What a delay on this flight costs

7.9% 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.

At 2,554 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.

DL 328 is not only a SEA to MCO flight. It also flew MCO to SEA (318 flights, 65.8% 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 328
Also flown as	Flights	On time	Avg delay	Cancelled	Grade
MCO to SEAthin sample	318	65.8%	75 min	2.20%	C

What to do with this

Booking DL 328

For a booking, DL 328 is one of the weaker ways to fly SEA to MCO: 6 points below the route as a whole. If the schedule allows, compare it with the other departures listed on the route page before settling on this one.

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