Flight Reliability
WN 4919 · Southwest Airlines
Nashville → Milwaukee (BNA–MKE)98% of its flights flew this route. The rest (SMF–SBA) are included in these numbers.
77
Usually Fine
WanderNerd Reliability Score
- 91%
- Arrive within 15 minutes
- 1 min early
- Average arrival delay
- 5.4%
- Cancelled
- 2 min early
- Median arrival delay
Based on 56 historical flights. Data through May 2026.
What the data says
Better than the BNA–MKE route average.
WN 4919 arrived on time 91% of the time, versus 77% across the BNA–MKE route.
Better than the Southwest Airlines network average.
WN 4919 arrived on time 91% of the time, versus 78% across the Southwest Airlines network.
The breakdown
- Mon—(7 flights)
- Tue—(9 flights)
- Wed—(9 flights)
- Thu—(8 flights)
- Fri—(8 flights)
- Sat—(4 flights)
- Sun—(8 flights)
- 9 AM–12 PM90%(52 flights)
- 3–6 PM—(1 flights)
- Departures on time
- 87%
- Diverted
- 0%
- Flights flown
- 53
- Months covered
- 4
Same route, other flights
Keep nerding
Based on 56 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.