| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Apr 06 | ONT | BWI | 22:05 | 05:26 |
Landed
|
Track > |
| Apr 05 | ONT | BWI | 22:12 | 05:24 |
Landed
|
Track > |
| Apr 04 | ONT | BWI | 22:18 | 05:33 |
Landed
|
Track > |
| Apr 03 | ONT | BWI | 22:22 | 05:57 |
Landed Late
|
Track > |
| Apr 02 | ONT | BWI | 22:23 | 05:37 |
Landed
|
Track > |
| Apr 01 | ONT | BWI | 21:59 | 05:16 |
Landed
|
Track > |
| Mar 31 | ONT | BWI | 22:21 | 05:40 |
Landed
|
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| Mar 30 | ONT | BWI | 22:06 | 05:26 |
Landed
|
Track > |
| Mar 29 | ONT | BWI | 22:08 | 05:30 |
Landed
|
Track > |
| Mar 28 | ONT | BWI | 00:36 | 07:54 |
Delayed
|
Track > |
Southwest Airlines Flight WN4128 connects Ontario, United States to Baltimore, United States, taking off from Ontario International Airport ONT and landing at Baltimore Washington International Airport BWI.
How long is the WN4128 flight from Ontario to Baltimore?
The average flight time from Ontario to Baltimore is 4 hours and 19 minutes. The flight distance is 3666 km / 2278 miles and the average flight speed is 849 km/h / 527 mph.
What is the On-Time Performance (OTP) of Southwest Airlines Flight WN4128 Ontario to Baltimore?
The Airportia On-Time Performance Rating for Southwest Airlines Flight WN4128 is 4.7/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest WN4128 flight?
The latest flight took off on Tuesday, April 7th, 2026 with the flight status being Landed on 05:26.
How else can the flight WN4128 be referenced as?
This Southwest Airlines flight can also be referenced as SWA4128, WN 4128, SWA 4128.
How often is flight WN4128 delayed?
On average, 40% of all WN4128 flights are delayed. The average delay is 42 minutes.
Can I get compensation for my delayed or cancelled WN4128 flight or baggage issues?
If your WN4128 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 WN4128 Flight Tracker above for more details.
Other flights departing from Ontario ONT: WN1104, WN1142, AA2277, WN4134
Other flights arriving at Baltimore BWI: WN4438, WN1419, WN4427, WN4466
All flights connecting Ontario ONT to Baltimore BWI.