Southwest Airlines
Is WN4148 delayed?
No — WN4148 landed in Washington 4 min early, at 20:43 on Sep 26 (as of Sep 27, 00:44 UTC). Over its last 5 recorded arrivals, 0 landed more than 15 min late.
4 min early
Official source · Updated
Departure
Las Vegas
LAS
Actual
Scheduled 13:27
Sep 26
Arrival
Washington
DCA
Actual
Scheduled 20:48
Sep 26
Times shown in airport local time
Service date: · Scheduled departure date (America/Los_Angeles)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 4 min early
Las Vegas → Washington
- 5 min early
Las Vegas → Washington
- 26 min early
Las Vegas → Washington
- 35 min early
Las Vegas → Washington
- 18 min early
Baltimore → Dallas
Is WN4148 usually late?
Observation window: Aug 30, 2026 – Sep 29, 2026
Percentages and delay figures appear once 10 arrivals are recorded.
On time means arriving no more than 15 minutes after the scheduled time; late means more than 15 minutes after. Cancelled and diverted flights are counted apart from arrivals. Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
At the airports today
Las Vegas (LAS) departures
- Left more than 15 min late
- 68 of 234
- Cancelled today
- 2
Washington (DCA) departures
- Left more than 15 min late
- 37 of 266
- Cancelled today
- 0
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 26, 2026Arrived | Las Vegas | Washington | -4 | |
| Sep 19, 2026Arrived | Las Vegas | Washington | -5 | |
| Sep 12, 2026Arrived | Las Vegas | Washington | -26 | |
| Sep 5, 2026Arrived | Las Vegas | Washington | -35 | |
| Aug 31, 2026Arrived | Baltimore | Dallas | -18 |
Email me if WN4148 runs late
We email you if your next WN4148 flight in the coming day is more than 15 minutes late, cancelled or diverted. Alerts last 30 days. No account needed.