Route reliability
Salt Lake City (SLC) to Dallas/Fort Worth (DFW): which airline is most on time?
On-time arrivals, cancellations and long delays for every airline that reported nonstop flights from Salt Lake City, UT (SLC) to Dallas/Fort Worth, TX (DFW), September 2025 to August 2026.
Salt Lake City, UTDallas/Fort Worth, TX
Route at a glance · September 2025 to August 2026
SLC to DFW
Salt Lake City, UT to Dallas/Fort Worth, TX
- On time
- 77.4%vs 75.6% U.S. average Better than average
- Cancelled
- 2.2%vs 1.9% U.S. average About average
- 60+ min late
- 7.3%vs 8.1% U.S. average About average
- Scheduled flights
- 3,870in 12 months4 airlines
- Most reliable airline
- Delta Air Lines79.7% on time · 1,458 flights
On time more often than the U.S. average, with a typical cancellation rate.
Airlines on this route
Ranked by on-time arrival
| Airline | On time | Cancelled | 60+ min late | Avg delay when late | Diverted | Flights |
|---|---|---|---|---|---|---|
| 1. Delta Air Lines Most reliable | 79.7% | 1.2% | 5.6% | 64 min | 1.1% | 1,458 |
| 2. Frontier Airlines Small sample (under 300 flights) | 76.1% | 2.5% | 7.0% | 67 min | 0.0% | 201 |
| 3. American Airlines | 76.0% | 2.8% | 8.5% | 105 min | 0.6% | 2,202 |
| Envoy Air Operating carrier; sold as American Eagle | Insufficient sample (fewer than 50 flights) | 9 | ||||
On time = arrived within 15 minutes of schedule. Avg delay when late = average arrival delay of flights 15+ minutes late. "Most reliable" needs at least 300 flights in 12 months. Tap a heading to sort.
What this means
Delta Air Lines has the strongest record on this route.
- Delta Air Lines had the best on-time record from Salt Lake City (SLC) to Dallas/Fort Worth (DFW): 79.7% of its 1,458 scheduled flights arrived within 15 minutes of schedule, compared with 76.0% for American Airlines.
- Envoy Air also flew this route but with fewer than 50 reported flights, too few to rate.
- 2.2% of flights on this route were cancelled (about 1 in 45), about the same as the U.S. average of 1.9%.
- 7.3% of flights, about 1 in 14, arrived an hour or more late. When a flight was late (15+ minutes), the average arrival delay was 89 min.
- Overall, 77.4% of flights on this route arrived on time, 1.8 points higher than the U.S. average of 75.6%.
- Over the last 3 years, February was the most reliable month on this route (84.0% on time) and May the least reliable (70.1%).
- Cancellations peaked in January, when 5.3% of flights were cancelled.
- Flights scheduled to depart before 6 am were the most punctual (89.3% on time); flights scheduled to depart 4 pm to 5 pm were the least (54.4%).
- In the other direction, Dallas/Fort Worth (DFW) to Salt Lake City (SLC), 69.3% of flights were on time and 2.2% were cancelled. Compare airlines DFW to SLC.
Best and worst months to fly SLC to DFW
Share of scheduled flights on time 12-month average 77.4%
Show as table
| Period | On time | Flights |
|---|---|---|
| January | 70.4% | 981 |
| February | 84.0% | 910 |
| March | 78.5% | 1,053 |
| April | 72.8% | 975 |
| May | 70.1% | 1,002 |
| June | 71.3% | 988 |
| July | 70.8% | 1,006 |
| August | 71.8% | 995 |
| September | 81.4% | 920 |
| October | 82.7% | 973 |
| November | 79.4% | 935 |
| December | 81.8% | 993 |
| Airline | Best month | Worst month |
|---|---|---|
| Delta Air Lines | February (87.3%) | July (71.3%) |
| American Airlines | October (82.6%) | January (68.5%) |
Month by month, last 12 months
Share of scheduled flights on time U.S. average 75.6%
Show as table
| Period | On time | Flights |
|---|---|---|
| Sep 2025 | 79.9% | 308 |
| Oct 2025 | 78.6% | 323 |
| Nov 2025 | 77.7% | 305 |
| Dec 2025 | 80.5% | 333 |
| Jan 2026 | 71.5% | 326 |
| Feb 2026 | 85.6% | 291 |
| Mar 2026 | 82.7% | 358 |
| Apr 2026 | 78.4% | 320 |
| May 2026 | 72.9% | 329 |
| Jun 2026 | 72.1% | 326 |
| Jul 2026 | 71.6% | 327 |
| Aug 2026 | 77.8% | 324 |
Best and worst departure times
Share of scheduled flights on time
Show as table
| Period | On time | Flights |
|---|---|---|
| Departing before 6 am | 89.3% | 365 |
| Departing 6 am to 7 am | 90.0% | 70 |
| Departing 7 am to 8 am | 83.3% | 639 |
| Departing 8 am to 9 am | 86.8% | 242 |
| Departing 9 am to 10 am | 83.2% | 279 |
| Departing 10 am to 11 am | 84.5% | 220 |
| Departing 11 am to noon | 75.9% | 340 |
| Departing noon to 1 pm | 78.1% | 96 |
| Departing 1 pm to 2 pm | 75.0% | 517 |
| Departing 2 pm to 3 pm | 58.7% | 213 |
| Departing 3 pm to 4 pm | 64.4% | 118 |
| Departing 4 pm to 5 pm | 54.4% | 272 |
| Departing 5 pm to 6 pm | 74.4% | 324 |
| Departing 6 pm to 7 pm | 80.3% | 117 |
| Departing 7 pm to 8 pm | Insufficient sample | 2 |
| Departing 8 pm to 9 pm | Insufficient sample | 21 |
| Departing 9 pm to 10 pm | Insufficient sample | 35 |
Sources & data dates
- Source
- U.S. DOT Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987-present)
- Period
- September 2025 to August 2026 (12 months); month-of-year patterns September 2023 to August 2026
- Data through
- August 2026
- Processed
- 2026-11-03
- Scope
- Nonstop scheduled flights from Salt Lake City, UT (SLC) to Dallas/Fort Worth, TX (DFW), one direction. Airlines that report to the DOT only.
- Method
- Rates use all scheduled flights as the denominator; cancelled and diverted flights count as not on time. Figures based on fewer than 50 scheduled flights are suppressed. Full methodology.