Flight Reliability
WN 4975 · Southwest Airlines
Baltimore → Raleigh–Durham (BWI–RDU)92% of its flights flew this route. The rest (MDW–BWI, LAS–GEG) are included in these numbers.
79
Usually Fine
WanderNerd Reliability Score
- 96%
- Arrive within 15 minutes
- 13 min early
- Average arrival delay
- 6.1%
- Cancelled
- 19 min early
- Median arrival delay
Based on 49 historical flights. Data through May 2026.
What the data says
Well ahead of the BWI–RDU route.
WN 4975 arrived on time 96% of the time, versus 81% across the BWI–RDU route.
Well ahead of the Southwest Airlines network.
WN 4975 arrived on time 96% of the time, versus 78% across the Southwest Airlines network.
The breakdown
- Mon—(6 flights)
- Tue—(9 flights)
- Wed—(9 flights)
- Thu—(6 flights)
- Fri—(5 flights)
- Sat—(6 flights)
- Sun—(5 flights)
- 3–6 AM—(3 flights)
- 6–9 AM95%(43 flights)
- Departures on time
- 94%
- Diverted
- 0%
- Flights flown
- 46
- Months covered
- 4
Same route, other flights
Keep nerding
Based on 49 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.