Flight Reliability
WN 43 · Southwest Airlines
Dallas → Houston (DAL–HOU)
40
Bring Snacks
WanderNerd Reliability Score
- 58%
- Arrive within 15 minutes
- 26 min
- Average arrival delay
- 4.3%
- Cancelled
- 3 min
- Median arrival delay
Based on 47 historical flights. Data through May 2026.
What the data says
Tuesdays have been rough.
WN 43 arrived on time 64% of the time on Sundays and just 40% on Tuesdays. That gap is worth planning around.
Well behind the DAL–HOU route.
WN 43 arrived on time 58% of the time, versus 75% across the DAL–HOU route.
Well behind the Southwest Airlines network.
WN 43 arrived on time 58% of the time, versus 78% across the Southwest Airlines network.
The breakdown
- Mon—(4 flights)
- Tue40%(10 flights)
- Wed—(9 flights)
- Thu—(3 flights)
- Fri—(3 flights)
- Sat—(5 flights)
- Sun64%(11 flights)
- Departures on time
- 62%
- Diverted
- 0%
- Flights flown
- 45
- Months covered
- 7
Same route, other flights
Keep nerding
Based on 47 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.