DFW to SLC delays: 69% on time (Dallas to Salt Lake City)

69% of flights from Dallas to Salt Lake City arrived on time over the past 12 months. That is worse than the typical U.S. route. The 8 a.m. departures ran on time 86% of the time; the 10 p.m. ones 43%. Most reliable airline: Frontier Airlines (83%). 13% of flights arrived more than an hour late or not at all.

How late?

The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for DFW → SLC: when a flight was late, it was under 45 minutes late 53% of the time. About 1 in 10 flights landed an hour or more late, and 1 in 59 three hours or more; 2.2% were cancelled outright.

On time or early69%
15–30 min late9.1%
30–60 min late9.0%
1–2 hours late6.1%
2–3 hours late2.3%
3+ hours late1.7%
Diverted0.2%
Cancelled2.2%

Share of all 3,872 scheduled flights, past 12 months, by arrival time against schedule.

By airline

Airline	Flights	On time	Cancelled	Typical arrival	1h+ late	Avg when late	Operated by
American Airlines	2,212	60%	2.7%	+5 min	13.2%	+64 min	American Airlines 100%, Envoy 0%
Delta Air Lines	1,459	82%	1.4%	−8 min	6.0%	+87 min	Delta Air Lines
Frontier Airlines	201	83%	2.0%	−11 min	6.5%	+70 min	Frontier Airlines

Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.

Best time of day to fly

On-time rate by scheduled departure hour (local time at DFW). Delays build through the day as late planes knock on, so early flights usually do best.

DFW → SLC, share of flights arriving on time, by departure hour. Hours with under 100 flights are greyed out.

82%+ on time76–82%68–76%under 68%too few flights

By airline and hour

Departs	American Airlines	Delta Air Lines
7 a.m.	—	85%
8 a.m.	80%	90%
9 a.m.	73%	—
10 a.m.	75%	—
11 a.m.	64%	—
noon	—	84%
1 p.m.	62%	—
2 p.m.	46%	83%
3 p.m.	59%	—
5 p.m.	59%	76%
6 p.m.	48%	72%
8 p.m.	58%	—
9 p.m.	48%	—
10 p.m.	43%	—

Last flight of the day

On DFW → SLC, each airline's last flight of the day was cancelled 2.9% of the time, against 2.0% for its earlier flights (1.4× as often). It arrived 3+ hours late 2.3% of the time (earlier flights: 1.7%). It matters more than the numbers suggest. Miss an earlier flight and there's another one that evening; miss the last one and you're usually waiting until morning.

Airline	Last departure	Last: cancelled	Last: 3h+ late	Earlier: cancelled	Next morning
American Airlines	10:52 p.m.	3.8%	1.1%	2.4%	first flight 8:37 a.m.
Delta Air Lines	6:12 p.m.	1.9%	3.6%	1.3%	first flight 7:45 a.m.

Last flight = the airline's last scheduled departure on this route that day, on days it flies the route at least twice; past 12 months. Times are typical scheduled times over the latest three months.

If you need to be in SLC tonight, book an earlier flight so there's a backup if it's cancelled.

By month

Each calendar month pooled over 2023–2026. Best: February (80%). Worst: July (57%).

By day of week

Day	Flights	On time	Cancelled
Monday	581	69%	2.1%
Tuesday	530	75%	2.6%
Wednesday	538	73%	0.4%
Thursday	545	69%	0.4%
Friday	569	69%	1.8%
Saturday	546	67%	3.7%
Sunday	563	64%	4.3%

Why flights were late

Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.

Late inbound plane 50%Airline (crew, maintenance, ops) 38%Air traffic & airport (NAS) 8%Severe weather 4%

Cancellations: weather 67 · airline 17

Month by month

Share of flights on time, by month (hover a point for cancellations)

DFW → SLC, monthly on-time and cancellation rate.

Flight numbers on this route

Regular flights with at least 120 scheduled trips in the past year. Sorted by departure time.

Flight	Departs	Flights	On time	Cancelled	Typical arrival	Operated by
DL 1291	8:10 a.m.	365	88%	1.6%	−11 min	Delta Air Lines
DL 2798	12:30 p.m.	253	84%	2.4%	−10 min	Delta Air Lines
F9 3277	12:39 p.m.	201	83%	2.0%	−11 min	Frontier Airlines
AA 1456	1:20 p.m.	287	61%	2.8%	+4 min	American Airlines
DL 2800	2:31 p.m.	222	82%	0.9%	−8 min	Delta Air Lines
AA 558	5:24 p.m.	207	48%	3.4%	+13 min	American Airlines
AA 2993	9:14 p.m.	208	49%	4.8%	+12 min	American Airlines
AA 2378	10:52 p.m.	152	43%	3.3%	+18 min	American Airlines

Worst days in the past year

Date	Flights	On time	Cancelled
Jan 25, 2026	11	0%	9
Nov 20, 2025	10	0%	2
Jan 24, 2026	10	0%	10
Jun 19, 2026	10	10%	2
Jun 7, 2026	10	10%	1

Nearby airport alternatives

Other ways to make the same trip, using airports within 60 miles of Dallas or Salt Lake City. DFW → PVU has been 5 points more reliable.

Route	Flights	On time	Cancelled
DFW → SLC (this route)	3,872	69%	2.2%
DFW → PVU Dallas/Fort Worth to Provo	723	74%	1.7%
DAL → SLC Dallas Love Field to Salt Lake City	670	70%	1.0%

Questions

How often are flights from DFW to SLC on time?

69% of 3,872 scheduled flights from Dallas/Fort Worth, TX to Salt Lake City, UT arrived within 15 minutes of schedule between September 2025 and August 2026. 2.2% were cancelled.

What is the best time of day to fly DFW to SLC?

Flights scheduled to leave at 8 a.m. were the most reliable (86% on time). The 10 p.m. departures were the least (43%).

Which airline is most on time from DFW to SLC?

Frontier Airlines: 83% of its 201 flights on the route arrived on time. American Airlines: 60%. Delta Air Lines: 82%.

What month has the most delays from DFW to SLC?

July (57% on time). The best month is February (80%), over 2023–2026.

Is the last flight of the day from DFW to SLC more likely to be cancelled?

Yes. Each airline's last DFW–SLC flight of the day was cancelled 2.9% of the time over the past year, against 2.0% for its earlier flights. If the last flight is cancelled, the next one is usually the following morning.

Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.

DFW → SLC on time