/ Flights / Southwest Airlines / WN21

WN21 Flight Status Southwest Airlines: Ontario to Phoenix (SWA21)

WN 21 Ontario to Phoenix Flight Status

Southwest Airlines Flight WN21 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 January 3rd, 2026.
Check the table below for WN21's most recent flight history:

WN 21 Flight Status & Schedule

Date Departure Arrival Status
Jan 03 05:21 07:12
Landed
 Track >
Dec 27 05:29 07:21
Landed
 Track >
Dec 20 05:25 07:11
Landed
 Track >
Nov 29 05:23 07:11
Landed
 Track >
Nov 22 05:43 07:34
Landed
 Track >
< All ONT Departures All PHX Arrivals >

Southwest Airlines WN 21 Ontario to Phoenix Flight Information

Southwest Airlines Flight WN21 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 WN21 flight from Ontario to Phoenix?

The average flight time from Ontario to Phoenix is 49 minutes. The flight distance is 521 km / 324 miles and the average flight speed is 632 km/h / 393 mph.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN21 Ontario to Phoenix?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN21 is 5/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight WN21 arriving at?

Flight WN21 arrives at Phoenix Sky Harbor International Airport (PHX) Terminal 4.

When was the latest WN21 flight?

The latest flight took off on Saturday, January 3rd, 2026 with the flight status being Landed on 07:12.

How else can the flight WN21 be referenced as?

This Southwest Airlines flight can also be referenced as SWA21, SWA021, WN021, WN0021, WN 21, SWA 21.

How often is flight WN21 delayed?

On average, 40% of all WN21 flights are delayed. The average delay is 7 minutes.

Can I get compensation for my delayed or cancelled WN21 flight or baggage issues?

If your WN21 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 WN21 Flight Tracker above for more details.

WN21 and Ontario ONT to Phoenix PHX Flights

Other flights departing from Ontario ONT: UA1180, WN2127, WN4851, WN3979

Other flights arriving at Phoenix PHX: WN4448, WN1670, WN1718, WN2876

All flights connecting Ontario ONT to Phoenix PHX.

WN21 Southwest Airlines Flight: Ontario to Phoenix Route Map

Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
New Flights: MW4758 D31721 2L2396 U24138 6I6802 OY520 EW2646 MW1435 2E3424 FR7487
See Also: Flight Tracker Airports Airlines News Flights Monitor Delay Compensation
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.