Flight number record

DL 2247

Delta Air Lines · Salt Lake City to Chicago

Route: SLC → ORD
Departs: 08:20
Flights: 334
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 2247, check with Delta Air Lines.

DL 2247 earns an A+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 8 points better than the national rate of 77.6%. When something does go wrong the average delay runs about an hour. That rests on 334 flights, with a median arrival 8 minutes early.

Set against the rest of the country, DL 2247's record is 8 points better than the US average of 77.6%. That gap is worth roughly 79 fewer late arrivals for every thousand flights.

On time

85.5%

Arrivals under 15 minutes late, of 332 completed flights

Avg delay

65 min

Across delayed arrivals only, not all flights

Cancelled

0.30%

National rate is 1.81%

1 hour+ late

5.7%

National rate is 8.1%

These figures cover 334 flights between July 2025 and June 2026. The median arrival is 8 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 2247 flies

DL 2247 flies SLC to ORD without a single fixed slot. Its most common scheduled departure was 08:20, used on 105 of 334 flights, with 07:45 (86 flights) and 08:00 (55 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 08:20105 flights31.4%
Departs 07:4586 flights25.7%
Departs 08:0055 flights16.5%

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 08:20 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and DL 2247 runs level with that at 85.5%. 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 2247 next to SLC to ORD

Every carrier on SLC to ORD combined arrived on time 75.3% of the time across 3,198 flights, so DL 2247 is 10 points ahead of it. Delta flew 1,010 flights on the same city pair under all its flight numbers, including this one, and those ran 76.8% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight beats by 4 points.

DL 2247 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 2247thin sample	334	85.5%	65 min	0.30%	A+
All Delta Air Lines on SLC–ORD	1,010	76.8%	70 min	0.69%	B+
All carriers on SLC–ORD	3,198	75.3%	90 min	1.22%	B
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 2247 quarter by quarter

Quarter by quarter DL 2247 held fairly steady: 87.0% in Jul–Sep 2025, 83.7% in Oct–Dec 2025, 85.6% in Jan–Mar 2026 and 86.2% in Apr–Jun 2026. A spread of 3 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights87.0%
Oct–Dec 202592 flights83.7%
Jan–Mar 202690 flights85.6%
Apr–Jun 202660 flights86.2%

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

By weekday, DL 2247 ranged from 83.3% on Sunday to 87.8% on Tuesday. With about 48 flights behind each day, a spread of 5 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why DL 2247 runs late

One category carries most of the weight here. National Airspace System accounts for 53% of the 3,110 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.

National Airspace System
53%
Carrier
47%
Late-arriving aircraft
0%

53% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 1,633 minutes out of 3,110, against a national NAS share of 21%. The split is drawn from 3,110 delay minutes reported on DL 2247.

Cancellations are rare at 0.30%, 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

5.7% 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 about an hour, which a normal layover absorbs.

The 1,250 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 ORD to SLC (116), but none flew often enough under DL 2247 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to SLC to ORD 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 2247

For a booking, DL 2247 has one of the better records a US domestic flight can show: 85.5% on time and 0.30% cancelled. That is a base rate, not a promise about any single 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