Route reliability
Dallas/Fort Worth (DFW) to Salt Lake City (SLC): which airline is most on time?
On-time arrivals, cancellations and long delays for every airline that reported nonstop flights from Dallas/Fort Worth, TX (DFW) to Salt Lake City, UT (SLC), September 2025 to August 2026.
Dallas/Fort Worth, TXSalt Lake City, UT
Route at a glance · September 2025 to August 2026
DFW to SLC
Dallas/Fort Worth, TX to Salt Lake City, UT
- On time
- 69.3%vs 75.6% U.S. average Worse than average
- Cancelled
- 2.2%vs 1.9% U.S. average About average
- 60+ min late
- 10.4%vs 8.1% U.S. average Worse than average
- Scheduled flights
- 3,872in 12 months4 airlines
- Most reliable airline
- Delta Air Lines81.9% on time · 1,459 flights
On time less 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. Frontier Airlines Small sample (under 300 flights) | 83.1% | 2.0% | 6.5% | 70 min | 0.0% | 201 |
| 2. Delta Air Lines Most reliable | 81.9% | 1.4% | 6.1% | 87 min | 0.0% | 1,459 |
| 3. American Airlines | 59.8% | 2.7% | 13.6% | 65 min | 0.4% | 2,203 |
| 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 Dallas/Fort Worth (DFW) to Salt Lake City (SLC): 81.9% of its 1,459 scheduled flights arrived within 15 minutes of schedule, compared with 59.8% for American Airlines.
- Frontier Airlines (83.1% on 201 flights) scored higher but flew the route far less often, so that result is less certain.
- 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%.
- 10.4% of flights, about 1 in 10, arrived an hour or more late. When a flight was late (15+ minutes), the average arrival delay was 70 min.
- Overall, 69.3% of flights on this route arrived on time, 6.3 points lower than the U.S. average of 75.6%.
- Over the last 3 years, February was the most reliable month on this route (80.0% on time) and July the least reliable (57.2%).
- Cancellations peaked in January, when 5.3% of flights were cancelled.
- Flights scheduled to depart 8 am to 9 am were the most punctual (86.4% on time); flights scheduled to depart 10 pm to 11 pm were the least (43.0%).
- In the other direction, Salt Lake City (SLC) to Dallas/Fort Worth (DFW), 77.4% of flights were on time and 2.2% were cancelled. Compare airlines SLC to DFW.
Best and worst months to fly DFW to SLC
Share of scheduled flights on time 12-month average 69.3%
Show as table
| Period | On time | Flights |
|---|---|---|
| January | 69.6% | 982 |
| February | 80.0% | 911 |
| March | 72.6% | 1,053 |
| April | 70.3% | 974 |
| May | 63.5% | 1,002 |
| June | 62.7% | 988 |
| July | 57.2% | 1,005 |
| August | 63.3% | 998 |
| September | 76.9% | 918 |
| October | 77.8% | 973 |
| November | 79.2% | 936 |
| December | 77.1% | 996 |
| Airline | Best month | Worst month |
|---|---|---|
| Delta Air Lines | October (88.1%) | July (73.6%) |
| American Airlines | February (75.8%) | July (45.7%) |
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 | 73.7% | 308 |
| Oct 2025 | 68.1% | 323 |
| Nov 2025 | 76.4% | 305 |
| Dec 2025 | 72.5% | 334 |
| Jan 2026 | 66.6% | 326 |
| Feb 2026 | 77.4% | 292 |
| Mar 2026 | 73.7% | 358 |
| Apr 2026 | 69.7% | 320 |
| May 2026 | 68.4% | 329 |
| Jun 2026 | 61.0% | 326 |
| Jul 2026 | 59.3% | 327 |
| Aug 2026 | 66.4% | 324 |
Best and worst departure times
Share of scheduled flights on time
Show as table
| Period | On time | Flights |
|---|---|---|
| Departing before 6 am | Insufficient sample | 12 |
| Departing 6 am to 7 am | Insufficient sample | 10 |
| Departing 7 am to 8 am | 85.3% | 163 |
| Departing 8 am to 9 am | 86.4% | 382 |
| Departing 9 am to 10 am | 73.5% | 215 |
| Departing 10 am to 11 am | 74.5% | 106 |
| Departing 11 am to noon | 64.5% | 256 |
| Departing noon to 1 pm | 83.4% | 385 |
| Departing 1 pm to 2 pm | 63.3% | 278 |
| Departing 2 pm to 3 pm | 75.9% | 486 |
| Departing 3 pm to 4 pm | 62.2% | 119 |
| Departing 4 pm to 5 pm | Insufficient sample | 5 |
| Departing 5 pm to 6 pm | 63.9% | 391 |
| Departing 6 pm to 7 pm | 63.5% | 414 |
| Departing 7 pm to 8 pm | 64.5% | 124 |
| Departing 8 pm to 9 pm | 57.9% | 126 |
| Departing 9 pm to 10 pm | 48.2% | 251 |
| Departing 10 pm to 11 pm | 43.0% | 149 |
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 Dallas/Fort Worth, TX (DFW) to Salt Lake City, UT (SLC), 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.