Flight number record

DL 2031

Delta Air Lines · Orlando to Salt Lake City

Route: MCO → SLC
Departs: 10:30
Flights: 364
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 2031, check with Delta Air Lines.

DL 2031 earns a B+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 7 points better than the national rate of 77.6%. When something does go wrong the average delay runs a little over an hour. That rests on 364 flights, with a median arrival 9 minutes early.

Set against the rest of the country, DL 2031's record is 7 points better than the US average of 77.6%. That gap is worth roughly 68 fewer late arrivals for every thousand flights.

On time

84.4%

Arrivals under 15 minutes late, of 358 completed flights

Avg delay

76 min

Across delayed arrivals only, not all flights

Cancelled

0.82%

National rate is 1.81%

1 hour+ late

4.2%

National rate is 8.1%

These figures cover 364 flights between July 2025 and June 2026. The median arrival is 9 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 2031 flies

DL 2031 flies MCO to SLC without a single fixed slot. Its most common scheduled departure was 10:30, used on 62 of 364 flights. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 10:3062 flights17.0%

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 10:30 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and DL 2031 runs level with that at 84.4%. 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 2031 next to MCO to SLC

Every carrier on MCO to SLC combined arrived on time 82.8% of the time across 1,530 flights, so DL 2031 is 2 points ahead of it. Delta flew 1,415 flights on the same city pair under all its flight numbers, including this one, and those ran 82.7% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight beats by 3 points.

DL 2031 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 2031thin sample	364	84.4%	76 min	0.82%	B+
All Delta Air Lines on MCO–SLC	1,415	82.7%	78 min	0.64%	B+
All carriers on MCO–SLC	1,530	82.8%	76 min	0.59%	B+
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 2031 quarter by quarter

Quarter by quarter DL 2031 held fairly steady: 86.8% in Jul–Sep 2025, 84.4% in Oct–Dec 2025, 82.8% in Jan–Mar 2026 and 83.3% in Apr–Jun 2026. A spread of 4 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights86.8%
Oct–Dec 202591 flights84.4%
Jan–Mar 202690 flights82.8%
Apr–Jun 202691 flights83.3%

Scale runs 75% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, DL 2031 did best on Saturday at 92.2% on time and worst on Sunday at 78.0%. Each day rests on about 52 flights, so a gap of 14 points is worth noticing but could still narrow in another year.

Delay causes

Why DL 2031 runs late

One category carries most of the weight here. Carrier accounts for 68% of the 4,234 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
68%
Late-arriving aircraft
19%
National Airspace System
10%
Extreme weather
4%

The largest share of delay minutes, 68%, 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 2,858 of the 4,234 delay minutes reported here. The split is drawn from 4,234 delay minutes reported on DL 2031.

Cancellations are rare at 0.82%, 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

Badly late arrivals are rare here: only 4.2% land an hour or more behind schedule, against 8.1% 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.

At 1,931 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.

Every one of the 364 flights under DL 2031 in the data flew MCO to SLC. The number was not reused on any other city pair, which makes this a clean record of one route.

One caution: this is a thin sample. 364 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 2031

For a booking, read DL 2031 as 84.4% on time with 0.82% cancelled over 364 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