| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jan 04 | SJC | ONT | 22:29 | 23:21 |
Landed
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| Jan 03 | SJC | ONT | 21:07 | 21:58 |
Landed
|
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| Jan 02 | SJC | ONT | 22:14 | 23:07 |
Landed
|
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| Dec 30 | SJC | ONT | 22:04 | 22:59 |
Landed
|
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| Dec 29 | SJC | ONT | 22:18 | 23:19 |
Landed
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| Dec 28 | SJC | ONT | 22:07 | 23:09 |
Landed
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| Dec 27 | SJC | ONT | 22:00 | 22:52 |
Delayed
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| Dec 26 | SJC | ONT | 22:27 | 23:24 |
Landed
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| Dec 23 | SJC | ONT | 22:14 | 23:24 |
Landed
|
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| Dec 22 | SJC | ONT | 21:53 | 22:50 |
Landed
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Southwest Airlines Flight WN4855 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 WN4855 flight from San Jose to Ontario?
The average flight time from San Jose to Ontario is 57 minutes. The flight distance is 536 km / 333 miles and the average flight speed is 570 km/h / 354 mph.
What is the On-Time Performance (OTP) of Southwest Airlines Flight WN4855 San Jose to Ontario?
The Airportia On-Time Performance Rating for Southwest Airlines Flight WN4855 is 4.8/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight WN4855 arriving at?
Flight WN4855 arrives at Ontario International Airport (ONT) Terminal 4.
When was the latest WN4855 flight?
The latest flight took off on Monday, January 5th, 2026 with the flight status being Landed on 23:21.
How else can the flight WN4855 be referenced as?
This Southwest Airlines flight can also be referenced as SWA4855, WN 4855, SWA 4855.
How often is flight WN4855 delayed?
On average, 60% of all WN4855 flights are delayed. The average delay is 18 minutes.
Can I get compensation for my delayed or cancelled WN4855 flight or baggage issues?
If your WN4855 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 WN4855 Flight Tracker above for more details.
Other flights departing from San Jose SJC: WN2160, WN4332, DL1529, UA2315
Other flights arriving at Ontario ONT: UA516, WN2392, DL1719, WN354
All flights connecting San Jose SJC to Ontario ONT.