Flight Reliability
WN 6303 · Southwest Airlines
Santa Ana → Nashville (SNA–BNA)
66
Usually Fine
WanderNerd Reliability Score
- 61%
- Arrive within 15 minutes
- 17 min
- Average arrival delay
- 0%
- Cancelled
- 8 min
- Median arrival delay
Based on 54 historical flights. Data through May 2026.
What the data says
Friday is doing you no favors.
WN 6303 arrived on time 62% of the time on Thursdays. On Fridays: 50%.
A bit behind the SNA–BNA route.
WN 6303 arrived on time 61% of the time, versus 68% across the SNA–BNA route.
Well behind the Southwest Airlines network.
WN 6303 arrived on time 61% of the time, versus 78% across the Southwest Airlines network.
The breakdown
- Mon58%(12 flights)
- Tue—(4 flights)
- Wed—(4 flights)
- Thu62%(13 flights)
- Fri50%(12 flights)
- Sat—(5 flights)
- Sun—(4 flights)
- 9 AM–12 PM—(5 flights)
- 12–3 PM59%(49 flights)
69%
Oct
Aug 27% → Oct 69% on time
| Month | On-time percentage | Flights |
|---|---|---|
| August 2025 | 27% | 11 |
| September 2025 | 69% | 13 |
| October 2025 | 69% | 29 |
- Departures on time
- 52%
- Diverted
- 0%
- Flights flown
- 54
- Months covered
- 4
Same route, other flights
Keep nerding
Based on 54 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.