WN3840 Flight Status Southwest Airlines: Sacramento to Las Vegas (SWA3840)
Are you looking for the November 6th, 2026 WN 3840 San Francisco to Burbank flight? Go to our WN3840 San Francisco to Burbank Flight Status page >
WN 3840 Sacramento to Las Vegas Flight Status
Not scheduled today (November 6th, 2026). Latest flight: September 28th, 2026 ; recent history is in the table below.
- This flight continues to El Paso (ELP): WN3840 Las Vegas to El Paso departs at 19:00 local time on Sep 28.
WN 3840 Flight Status & Schedule Southwest Airlines Sacramento to Las Vegas
| Date | From | To | Departure | Arrival | Status | Details |
|---|---|---|---|---|---|---|
| Sep 28 | SMF | LAS | 18:32 | 19:37 | Delayed | Track > |
| Sep 25 | SMF | LAS | 17:34 | 18:34 | Landed | Track > |
| Sep 24 | SMF | LAS | 17:27 | 18:31 | Landed | Track > |
| Sep 21 | SMF | LAS | 17:31 | 18:41 | Landed Late | Track > |
| Sep 18 | SMF | LAS | 17:23 | 18:23 | Landed | Track > |
| Sep 17 | SMF | LAS | 17:48 | 18:50 | Landed Late | Track > |
| Sep 14 | SMF | LAS | 17:21 | 18:21 | Landed | Track > |
| Sep 11 | SMF | LAS | 17:34 | 18:34 | Landed | Track > |
| Sep 10 | SMF | LAS | 17:23 | 18:24 | Landed | Track > |
| Sep 07 | SMF | LAS | 17:38 | 18:38 | Landed Late | Track > |
Southwest Airlines flight WN 3840 links Sacramento and Las Vegas, 639 km (397 mi) apart. The timetable allows 1 h 25 min, but the flight usually takes about 1 h, so it often makes up time. It is not flying today; the last flight was scheduled on 28 September 2026.
About WN 3840
- Distance
- 639 km (397 mi)
- Typical flight time
- 1 h
- On time
- 6 of the last 9
- Average delay when late
- 23 min
- Usually departs from
- Terminal B
WN 3840 FAQ
- How long is the WN3840 flight?
- The timetable allows 1 h 25 min. Sacramento to Las Vegas is 639 km (397 mi).
- How often is WN3840 late?
- 3 of the last 9 flights arrived 15 or more minutes late; when late, by 23 minutes on average.
- Which terminal does WN3840 use?
- It usually leaves from Terminal B at Sacramento International Airport (SMF) and arrives at Terminal 1 at Las Vegas McCarran International Airport (LAS). Check the flight card above for today's terminal and gate.
- What other flight numbers does WN3840 have?
- Also listed as SWA3840 (Southwest Airlines' ICAO code) and WN 3840.
WN3840 and Sacramento SMF to Las Vegas LAS Flights
Other flights departing from Sacramento SMF: WN3743, WN4156, WN4776
Other flights arriving at Las Vegas LAS: WN1150, WN1386, WN1067, AA1505
All flights connecting Sacramento SMF to Las Vegas LAS.