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WN4266 Flight Status Southwest Airlines: San Jose to Ontario (SWA4266)

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WN 4266 San Jose to Ontario Flight Status

Southwest Airlines Flight WN4266 from San Jose International Airport SJC to Ontario International Airport ONT is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on June 2nd, 2025.
Check the table below for WN4266's most recent flight history:

WN 4266 Flight Status & Schedule

Date Departure Arrival Status
Jun 02 21:36 22:30
Landed Late
 Track >
Jun 01 22:42 23:37
Landed Late
 Track >
May 31 20:00 20:55
Landed
 Track >
< All SJC Departures All ONT Arrivals >

Southwest Airlines WN 4266 San Jose to Ontario Flight Information

Southwest Airlines Flight WN4266 connects San Jose, United States to Ontario, United States, taking off from San Jose International Airport SJC and landing at Ontario International Airport ONT.

How long is the WN4266 flight from San Jose to Ontario?

The average flight time from San Jose to Ontario is 54 minutes. The flight distance is 536 km / 333 miles and the average flight speed is 589 km/h / 366 mph.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN4266 San Jose to Ontario?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN4266 is 4/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight WN4266 arriving at?

Flight WN4266 arrives at Ontario International Airport (ONT) Terminal 4.

When was the latest WN4266 flight?

The latest flight took off on Tuesday, June 3rd, 2025 with the flight status being Landed on 22:30.

How else can the flight WN4266 be referenced as?

This Southwest Airlines flight can also be referenced as SWA4266, WN 4266, SWA 4266.

How often is flight WN4266 delayed?

On average, 67% of all WN4266 flights are delayed. The average delay is 88 minutes.

Can I get compensation for my delayed or cancelled WN4266 flight or baggage issues?

If your WN4266 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 WN4266 Flight Tracker above for more details.

WN4266 and San Jose SJC to Ontario ONT Flights

Other flights departing from San Jose SJC: WN4252, AS2291, WN345, WN4367

Other flights arriving at Ontario ONT: HA80, WN2063, WN4277, WN3021

All flights connecting San Jose SJC to Ontario ONT.

WN4266 Southwest Airlines Flight: San Jose to Ontario Route Map

WN4266 Southwest Airlines Flight Map: San Jose to Ontario
Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
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Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.