Flight number record

DL 2798

Delta Air Lines · Salt Lake City to Dallas-Fort Worth

Route: SLC → DFW
Departs: 07:45
Flights: 253
Period: September 2025 to August 2026

Historical statistics for September 2025 to August 2026, not live status. For today’s DL 2798, check with Delta Air Lines.

DL 2798 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 9 points better than the national rate of 77.3%. When something does go wrong the average delay runs roughly 40 minutes. That rests on 253 flights, with a median arrival 9 minutes early.

Set against the rest of the country, DL 2798's record is 9 points better than the US average of 77.3%. That gap is worth roughly 89 fewer late arrivals for every thousand flights.

On time

86.2%

Arrivals under 15 minutes late, of 246 completed flights

Avg delay

41 min

Across delayed arrivals only, not all flights

Cancelled

1.98%

National rate is 1.89%

1 hour+ late

2.4%

National rate is 8.3%

These figures cover 253 flights between September 2025 and August 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.

Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Schedule

When DL 2798 flies

DL 2798 flies SLC to DFW without a single fixed slot. Its most common scheduled departure was 07:45, used on 134 of 253 flights, with 07:55 (88 flights) and 07:56 (29 flights) next.

Departs 07:45134 flights53.0%
Departs 07:5588 flights34.8%
Departs 07:5629 flights11.5%

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 07:45 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and DL 2798 runs 3 points worse at 86.2%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Against the route

DL 2798 next to SLC to DFW

Every carrier on SLC to DFW combined arrived on time 79.8% of the time across 3,870 flights, so DL 2798 is 6 points ahead of it. Delta flew 1,458 flights on the same city pair under all its flight numbers, including this one, and those ran 81.6% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 5 points.

DL 2798 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 2798thin sample	253	86.2%	41 min	1.98%	A
All Delta Air Lines on SLC–DFW	1,458	81.6%	64 min	1.23%	B
All carriers on SLC–DFW	3,870	79.8%	89 min	2.20%	B
Delta Air Lines, whole network	1,039,517	81.1%	71 min	1.74%	B

Across the year

DL 2798 quarter by quarter

DL 2798 did not run the same all year. Its best quarter was Jan–Mar 2026 at 90.5% on time and its weakest Apr–Jun 2026 at 79.8%, a swing of 11 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.

Oct–Dec 202512 flights—
Jan–Mar 202688 flights90.5%
Apr–Jun 202691 flights79.8%
Jul–Sep 202662 flights88.5%

Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, DL 2798 did best on Wednesday at 91.7% on time and worst on Sunday at 79.4%. Each day rests on about 36 flights, so a gap of 12 points is worth noticing but could still narrow in another year.

Arrival by arrival

How late DL 2798 runs when it is late

DL 2798 often beats the schedule: 78 of 246 completed flights, 32%, arrived 15 minutes or more early. Most of the lateness is short. 18 of the 34 late arrivals were under half an hour behind, and 6 reached an hour or more.

15+ min early78 flights31.7%
Within 15 min134 flights54.5%
15–29 min late18 flights7.3%
30–59 min late10 flights4.1%
1–2 hours late5 flights2.0%
2+ hours late1 flights0.4%

Scale runs 0% to 100%.

Share of 246 completed flights by arrival against schedule.

7 of 27 late departures made up the time and arrived on time, 26% of them. In the other direction, 14 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at DFW.

The worst days

Worst days for DL 2798

The latest arrival of the period was on 29 March 2026, 2 hours 53 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. On three of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).

The latest arrivals of DL 2798 in the period
Date	Arrived late by	Largest filed cause
29 March 2026	2 hours 53 minutes	Late-arriving aircraft
24 May 2026	1 hour 36 minutes	Carrier
5 April 2026	1 hour 28 minutes	Carrier
19 April 2026	1 hour 25 minutes	Carrier
7 March 2026	1 hour 10 minutes	National Airspace System

Delay causes

Why DL 2798 runs late

Carrier accounts for 46% of the 1,400 delay minutes carriers reported here, and the remaining four split what is left.

Carrier
46%
National Airspace System
33%
Late-arriving aircraft
21%

The largest share of delay minutes, 46%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 648 of the 1,400 delay minutes reported here. The split is drawn from 1,400 delay minutes reported on DL 2798.

Cancellations sit at 1.98% against a national 1.89%, which is ordinary. Diversions add another 0.79%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 2.4% 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 989 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.

DL 2798 is not only a SLC to DFW flight. It also flew DFW to SLC (253 flights, 86.2% 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. 253 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 2798
Also flown as	Flights	On time	Avg delay	Cancelled	Grade
DFW to SLCthin sample	253	86.2%	77 min	2.37%	A

What to do with this

Booking DL 2798

For a booking, read DL 2798 as 86.2% on time with 1.98% cancelled over 253 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, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures