Flight Reliability
WN 5678 · Southwest Airlines
Baltimore → Denver (BWI–DEN)
98
Nerd Approved
WanderNerd Reliability Score
- 90%
- Arrive within 15 minutes
- 5 min early
- Average arrival delay
- 0%
- Cancelled
- 7 min early
- Median arrival delay
Based on 31 historical flights. Data through May 2026.
What the data says
Better than the BWI–DEN route average.
WN 5678 arrived on time 90% of the time, versus 77% across the BWI–DEN route.
Better than the Southwest Airlines network average.
WN 5678 arrived on time 90% of the time, versus 78% across the Southwest Airlines network.
The breakdown
- Mon—(4 flights)
- Tue—(4 flights)
- Wed—(4 flights)
- Thu—(5 flights)
- Fri—(5 flights)
- Sat—(5 flights)
- Sun—(4 flights)
- 9 AM–12 PM—(4 flights)
- 12–3 PM84%(19 flights)
- 6–9 PM—(8 flights)
- Departures on time
- 77%
- Diverted
- 0%
- Flights flown
- 31
- Months covered
- 2
Same route, other flights
Keep nerding
Based on 31 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.