Flight Reliability
WN 4955 · Southwest Airlines
Washington → Fort Lauderdale (DCA–FLL)98% of its flights flew this route. The rest (MCO–SMF) are included in these numbers.
54
A Little Dicey
WanderNerd Reliability Score
- 65%
- Arrive within 15 minutes
- 14 min
- Average arrival delay
- 4.2%
- Cancelled
- 2 min
- Median arrival delay
Based on 48 historical flights. Data through May 2026.
What the data says
A bit behind the DCA–FLL route.
WN 4955 arrived on time 65% of the time, versus 69% across the DCA–FLL route.
Lagging the Southwest Airlines network.
WN 4955 arrived on time 65% 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—(5 flights)
- Sun—(6 flights)
- 3–6 PM—(5 flights)
- 6–9 PM63%(41 flights)
- Departures on time
- 54%
- Diverted
- 0%
- Flights flown
- 46
- Months covered
- 4
Same route, other flights
Keep nerding
Based on 48 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.