WN 4851 Ontario to Phoenix Flight Status

Southwest Airlines Flight WN4851 from Ontario International Airport ONT to Phoenix Sky Harbor International Airport PHX is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on February 27th, 2026.
Check the table below for WN4851's most recent flight history:

WN 4851 Flight Status & Schedule

Date Departure Arrival Status
Feb 27 11:57 13:47
Landed
Track >
Feb 26 12:01 13:57
Landed
Track >
Feb 20 12:08 13:59
Landed
Track >
Feb 16 12:00 13:53
Landed
Track >
Feb 13 12:10 14:07
Landed
Track >

Southwest Airlines WN 4851 Ontario to Phoenix Flight Information

Southwest Airlines Flight WN4851 connects Ontario, United States to Phoenix, United States, taking off from Ontario International Airport ONT and landing at Phoenix Sky Harbor International Airport PHX.

How long is the WN4851 flight from Ontario to Phoenix?

The average flight time from Ontario to Phoenix is 52 minutes. The flight distance is 521 km / 324 miles and the average flight speed is 600 km/h / 373 mph.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN4851 Ontario to Phoenix?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN4851 is 5/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight WN4851 arriving at?

Flight WN4851 arrives at Phoenix Sky Harbor International Airport (PHX) Terminal 4.

When was the latest WN4851 flight?

The latest flight took off on Friday, February 27th, 2026 with the flight status being Landed on 13:47.

How else can the flight WN4851 be referenced as?

This Southwest Airlines flight can also be referenced as SWA4851, WN 4851, SWA 4851.

How often is flight WN4851 delayed?

On average, 17% of all WN4851 flights are delayed. The average delay is 2 minutes.

Can I get compensation for my delayed or cancelled WN4851 flight or baggage issues?

If your WN4851 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 WN4851 Flight Tracker above for more details.

WN4851 and Ontario ONT to Phoenix PHX Flights

Other flights departing from Ontario ONT: WN3040, WN3045, WN3026, WN1928

Other flights arriving at Phoenix PHX: UA1160, WN2329, WN2941, AA4906

All flights connecting Ontario ONT to Phoenix PHX.

WN4851 Southwest Airlines Flight: Ontario to Phoenix Route Map

Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.