Route Reliability
St. Louis → Dallas
STL–DAL · 546 miles · St. Louis Lambert International Airport to Dallas Love Field
- 78%
- Arrive within 15 minutes
- 7 min
- Average arrival delay
- 1.6%
- Cancelled
- 1,916
- Flights in the data
Data through May 2026.
Southwest Airlines is the only airline in this data on this route, arriving on time 78% of the time across 1,916 flights. No comparison to make.
What the data says
Morning-you made the right choice.
STL–DAL flights departing between 6–9 AM arrived on time 93% of the time, versus 63% between 9 PM–12 AM.
Sunday scaries are real for this one.
STL–DAL flights arrived on time 87% of the time on Tuesdays and just 69% on Sundays. That gap is worth planning around.
Recent months have been rougher.
STL–DAL flights arrived on time 77% of the time over the last three months in the data, compared with 86% in the three months before that.
Flights on this route
The breakdown
- Mon75%(286 flights)
- Tue87%(268 flights)
- Wed85%(273 flights)
- Thu76%(286 flights)
- Fri81%(288 flights)
- Sat74%(205 flights)
- Sun69%(272 flights)
- 3–6 AM92%(191 flights)
- 6–9 AM93%(382 flights)
- 9 AM–12 PM85%(233 flights)
- 12–3 PM77%(326 flights)
- 3–6 PM66%(285 flights)
- 6–9 PM66%(339 flights)
- 9 PM–12 AM63%(122 flights)
Jun 70% → May 73% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 70% | 159 |
| July 2025 | 72% | 159 |
| August 2025 | 78% | 169 |
| September 2025 | 78% | 171 |
| October 2025 | 75% | 153 |
| November 2025 | 80% | 149 |
| December 2025 | 78% | 151 |
| January 2026 | 91% | 137 |
| February 2026 | 88% | 146 |
| March 2026 | 77% | 165 |
| April 2026 | 80% | 156 |
| May 2026 | 73% | 163 |
Same trip, other airports
Keep nerding
Based on 1,916 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.