Southwest Airlines WN3857 flight status now

WN3857 - SWA3857 Southwest Airlines (WN)
MDW Chicago United States
Flight MDW to ONT
ONT Ontario United States
Contact Airlines It may not operate on the date requested
Departure Chicago Midway International Airport
IATA: MDWICAO: KMDW
Scheduled 16:15
None B21
Arrival Ontario International Airport
IATA: ONTICAO: KONT
Scheduled 18:30
4 405
WN3857 Detail
  • Type: Domestic Flight
  • Flight Duration: 4 hours 15 minutes
  • Flight Distance: 2746 kms / 1706 miles
Airline
  • Southwest Airlines
  • IATA: WN
  • ICAO: SWA
  • Operating Days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday
Passenger Services
  • Service type: Normal passenger
  • Seats: 143
  • Freight capacity: 8.4 tons
  • Passenger classes: Economy, Premium Economy
More Detail
  • Aircraft: Boeing 737-800 (winglets) Passenger/BBJ2
  • Callsign: F-KNEW1
  • Departure Timezone: America/Chicago
  • Arrival Timezone: America/Los_Angeles
  • Current Time in Chicago: Tuesday 2025-11-18 01:41 AM
  • Current Time in Ontario: Monday 2025-11-17 23:41 PM

Domestic flight Southwest Airlines WN3857 takes off from Chicago (MDW) United States to Ontario (ONT) United States. It's operated by Southwest Airlines. The plane leaves Chicago Midway International Airport at 16:15 America/Chicago. The flight is expected to land at Ontario International Airport at 18:30 America/Los_Angeles. The flight will last about 4 hours 15 minutes.

Similar flight route from Chicago (MDW) to Ontario (ONT)

Airline Flight no Departure Arrival
Southwest Airlines WN872
Southwest Airlines 		18/11/2025
08:15 		4 hours 11 minutes
10:35
Southwest Airlines WN5209
Southwest Airlines 		18/11/2025
14:05 		4 hours 5 minutes
16:10

Frequently asked questions, answered

How long is the flight from Chicago to Ontario?

On average, nonstop flight takes 4 hour(s) 15 minutes, with the flight distance of 2746 km (1706 miles).

What type of aircraft is used for the Southwest Airlines WN3857 flight?

All Southwest Airlines WN3857 flights are operated using Boeing 737-800 (winglets) Passenger/BBJ2 aircraft.

Which terminal the flight Southwest Airlines WN3857 is arriving at?

Flight Southwest Airlines WN3857 arrives in Ontario International Airport at Terminal 4.

How many Southwest Airlines WN3857 flights are operated a week?

6 flights per week. The Flight Southwest Airlines WN3857 is operated on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday.