| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Apr 06 | ONT | DEN | 06:03 | 08:47 |
Landed
|
Track > |
| Apr 05 | ONT | DEN | 06:32 | 09:23 |
Landed
|
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| Apr 04 | ONT | DEN | 06:37 | 09:24 |
Landed
|
Track > |
| Apr 03 | ONT | DEN | 06:32 | 09:17 |
Landed Late
|
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| Apr 02 | ONT | DEN | 05:59 | 08:46 |
Landed
|
Track > |
| Apr 01 | ONT | DEN | 06:56 | 09:39 |
Landed
|
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| Mar 31 | ONT | DEN | 06:37 | 09:18 |
Landed
|
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| Mar 30 | ONT | DEN | 06:00 | 08:48 |
Landed
|
Track > |
| Mar 29 | ONT | DEN | 06:37 | 09:24 |
Landed
|
Track > |
| Mar 28 | ONT | DEN | 06:38 | 09:25 |
Landed
|
Track > |
Southwest Airlines Flight WN4129 connects Ontario, United States to Denver, United States, taking off from Ontario International Airport ONT and landing at Denver International Airport DEN.
How long is the WN4129 flight from Ontario to Denver?
The average flight time from Ontario to Denver is 1 hour and 46 minutes. The flight distance is 1316 km / 818 miles and the average flight speed is 745 km/h / 463 mph.
What is the On-Time Performance (OTP) of Southwest Airlines Flight WN4129 Ontario to Denver?
The Airportia On-Time Performance Rating for Southwest Airlines Flight WN4129 is 5/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight WN4129 arriving at?
Flight WN4129 arrives at Denver International Airport (DEN) Terminal 2.
When was the latest WN4129 flight?
The latest flight took off on Monday, April 6th, 2026 with the flight status being Landed on 08:47.
How else can the flight WN4129 be referenced as?
This Southwest Airlines flight can also be referenced as SWA4129, WN 4129, SWA 4129.
How often is flight WN4129 delayed?
On average, 10% of all WN4129 flights are delayed. The average delay is 17 minutes.
Can I get compensation for my delayed or cancelled WN4129 flight or baggage issues?
If your WN4129 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 WN4129 Flight Tracker above for more details.
Other flights departing from Ontario ONT: AA1833, DL4042, WN2374, WN3341
Other flights arriving at Denver DEN: WN714, WN860, WN478, WN1194
All flights connecting Ontario ONT to Denver DEN.