Airport reliability
Dallas (DAL) on-time performance
How reliably flights leave Dallas, TX (DAL) and reach their destinations, by airline, departure hour and month, September 2025 to August 2026.
Dallas, TX70,436 departures in 12 months
- Departures on time
- 71.4% U.S. average 75.6%
- Cancelled
- 1.4% U.S. average 1.9%
- 60+ minutes late
- 7.9% U.S. average 8.1%
- Scheduled departures
- 70,436 12 months
What this means
DAL departures ran below the U.S. average.
- 71.4% of the 70,436 scheduled departures from Dallas (DAL) arrived at their destination on time, 4.2 points lower than the U.S. average of 75.6%.
- 1.4% of departures were cancelled (U.S. average 1.9%), and 7.9% arrived an hour or more late.
- Flights arriving at DAL were on time 75.5% of the time.
- Among airlines with at least 300 departures, Delta Air Lines was the most punctual from DAL (79.4%) and Southwest Airlines the least (71.2%).
- Over the last 3 years, February was the most reliable month for departures from DAL (82.0% on time) and June the least reliable (63.3%).
- Cancellations peaked in January, when 4.7% of flights were cancelled.
- Flights scheduled to depart 6 am to 7 am were the most punctual (92.0% on time); flights scheduled to depart 9 pm to 10 pm were the least (49.6%).
Airlines at DAL
Ranked by on-time arrival
| Airline | On time | Cancelled | 60+ min late | Avg delay when late | Departures |
|---|---|---|---|---|---|
| Delta Air Lines | 79.4% | 2.1% | 7.7% | 89 min | 1,800 |
| Southwest Airlines | 71.2% | 1.4% | 7.9% | 55 min | 68,636 |
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On-time rate by departure hour
Share of scheduled flights on time DAL average 71.4%
Show as table
| Period | On time | Flights |
|---|---|---|
| Departing 6 am to 7 am | 92.0% | 5,103 |
| Departing 7 am to 8 am | 88.2% | 4,414 |
| Departing 8 am to 9 am | 88.0% | 4,749 |
| Departing 9 am to 10 am | 85.7% | 4,381 |
| Departing 10 am to 11 am | 81.3% | 4,195 |
| Departing 11 am to noon | 78.0% | 4,772 |
| Departing noon to 1 pm | 72.6% | 4,513 |
| Departing 1 pm to 2 pm | 69.5% | 4,780 |
| Departing 2 pm to 3 pm | 70.9% | 3,878 |
| Departing 3 pm to 4 pm | 66.7% | 4,424 |
| Departing 4 pm to 5 pm | 60.8% | 4,711 |
| Departing 5 pm to 6 pm | 59.2% | 3,811 |
| Departing 6 pm to 7 pm | 58.9% | 4,028 |
| Departing 7 pm to 8 pm | 56.9% | 4,354 |
| Departing 8 pm to 9 pm | 54.4% | 4,117 |
| Departing 9 pm to 10 pm | 49.6% | 2,692 |
| Departing 10 pm to 11 pm | 52.2% | 1,514 |
Best and worst months at DAL
Share of scheduled flights on time 12-month average 71.4%
Show as table
| Period | On time | Flights |
|---|---|---|
| January | 77.5% | 17,262 |
| February | 82.0% | 16,028 |
| March | 74.6% | 18,737 |
| April | 73.5% | 18,112 |
| May | 64.6% | 18,534 |
| June | 63.3% | 18,505 |
| July | 66.9% | 19,033 |
| August | 75.8% | 17,348 |
| September | 80.7% | 17,341 |
| October | 80.0% | 18,831 |
| November | 80.7% | 18,079 |
| December | 78.9% | 18,847 |
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 | 81.7% | 5,518 |
| Oct 2025 | 75.2% | 6,100 |
| Nov 2025 | 74.2% | 5,799 |
| Dec 2025 | 78.3% | 6,070 |
| Jan 2026 | 78.0% | 5,470 |
| Feb 2026 | 78.9% | 5,163 |
| Mar 2026 | 69.2% | 6,221 |
| Apr 2026 | 70.5% | 5,965 |
| May 2026 | 63.1% | 6,141 |
| Jun 2026 | 55.6% | 6,025 |
| Jul 2026 | 63.5% | 6,237 |
| Aug 2026 | 71.8% | 5,727 |
Busiest routes from DAL
| To | On time | Cancelled | Airlines | Flights |
|---|---|---|---|---|
| Houston (HOU) | 73.3% | 2.0% | 1 | 4,044 |
| Atlanta (ATL) | 76.4% | 1.9% | 2 | 3,297 |
| Denver (DEN) | 68.9% | 1.4% | 1 | 2,966 |
| Phoenix (PHX) | 72.2% | 2.1% | 1 | 2,867 |
| Las Vegas (LAS) | 73.6% | 1.2% | 1 | 2,859 |
| San Antonio (SAT) | 75.8% | 1.1% | 1 | 2,755 |
| Orlando (MCO) | 68.9% | 1.5% | 1 | 2,653 |
| Nashville (BNA) | 69.7% | 1.4% | 1 | 2,443 |
| Austin (AUS) | 76.1% | 1.0% | 1 | 2,335 |
| New Orleans (MSY) | 74.6% | 1.1% | 1 | 2,281 |
| Chicago (MDW) | 67.7% | 2.1% | 1 | 2,192 |
| Kansas City (MCI) | 74.5% | 1.4% | 1 | 2,050 |
| St. Louis (STL) | 75.0% | 1.2% | 1 | 1,943 |
| Baltimore (BWI) | 71.9% | 1.9% | 1 | 1,828 |
| El Paso (ELP) | 73.2% | 1.0% | 1 | 1,770 |
| Washington (DCA) | 63.7% | 2.0% | 1 | 1,732 |
| Albuquerque (ABQ) | 75.5% | 1.4% | 1 | 1,623 |
| San Diego (SAN) | 70.3% | 1.3% | 1 | 1,597 |
| New York (LGA) | 56.6% | 3.3% | 1 | 1,557 |
| Lubbock (LBB) | 76.0% | 1.3% | 1 | 1,494 |
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
- Scheduled nonstop domestic departures from Dallas, TX (DAL) by airlines that report to the DOT.
- 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.