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WN3840 Flight Status Southwest Airlines: Las Vegas to Chicago (SWA3840)

WN 3840 Las Vegas to Chicago Flight Status

Southwest Airlines Flight WN3840 from Las Vegas McCarran International Airport LAS to Chicago Midway International Airport MDW is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on June 4th, 2025.
Check the table below for WN3840's most recent flight history:

WN 3840 Flight Status & Schedule

Date Departure Arrival Status
Jun 04 17:51 22:43
Landed
 Track >
Jun 03 17:42 22:53
Landed
 Track >
Jun 02 16:35 21:36
Landed
 Track >
Jun 01 15:46 20:55
Landed
 Track >
< All LAS Departures All MDW Arrivals >

Southwest Airlines WN 3840 Las Vegas to Chicago Flight Information

Southwest Airlines Flight WN3840 connects Las Vegas, United States to Chicago, United States, taking off from Las Vegas McCarran International Airport LAS and landing at Chicago Midway International Airport MDW.

How long is the WN3840 flight from Las Vegas to Chicago?

The average flight time from Las Vegas to Chicago is 3 hours and 3 minutes. The flight distance is 2442 km / 1517 miles and the average flight speed is 801 km/h / 498 mph.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN3840 Las Vegas to Chicago?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN3840 is 5/5 stars. This metric is calculated using data from the past 10 flights.

When was the latest WN3840 flight?

The latest flight took off on Thursday, June 5th, 2025 with the flight status being Landed on 22:43.

How else can the flight WN3840 be referenced as?

This Southwest Airlines flight can also be referenced as SWA3840, WN 3840, SWA 3840.

How often is flight WN3840 delayed?

On average, 25% of all WN3840 flights are delayed. The average delay is 5 minutes.

Can I get compensation for my delayed or cancelled WN3840 flight or baggage issues?

If your WN3840 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.

See our WN3840 Flight Tracker above for more details.

WN3840 and Las Vegas LAS to Chicago MDW Flights

This is a multi leg flight of Southwest Airlines WN3840. Previous leg is Sacramento to Las Vegas

Other flights departing from Las Vegas LAS: WN1061, DL2505, WN3696, WN1435

Other flights arriving at Chicago MDW: WN1592, WN3462, WN3494, WN4455

All flights connecting Las Vegas LAS to Chicago MDW.

WN3840 Southwest Airlines Flight: Las Vegas to Chicago Route Map

WN3840 Southwest Airlines Flight Map: Las Vegas to Chicago
Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
New Flights: CG2644 5F481 PC4608 CM9026 9C6431 QF1008 DX765 FR5398 OS616 2I4283
See Also: Flight Tracker Airports Airlines News Flights Monitor Delay Compensation
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.