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WN 4138 Ontario to Oakland Flight Status

Southwest Airlines Flight WN4138 from Ontario International Airport ONT to Oakland International Airport OAK is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on August 4th, 2025.
Check the table below for WN4138's most recent flight history:

WN 4138 Flight Status & Schedule

Date Departure Arrival Status
Aug 04 10:17 11:13
Landed
Track >
Aug 03 09:30 10:23
Landed
Track >
Aug 01 10:21 11:18
Landed
Track >
Jul 31 11:25 12:20
Delayed
Track >
Jul 30 18:10 19:05
Landed
Track >

Southwest Airlines WN 4138 Ontario to Oakland Flight Information

Southwest Airlines Flight WN4138 connects Ontario, United States to Oakland, United States, taking off from Ontario International Airport ONT and landing at Oakland International Airport OAK.

How long is the WN4138 flight from Ontario to Oakland?

The average flight time from Ontario to Oakland is 56 minutes. The flight distance is 582 km / 362 miles and the average flight speed is 627 km/h / 390 mph.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN4138 Ontario to Oakland?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN4138 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight WN4138 arriving at?

Flight WN4138 arrives at Oakland International Airport (OAK) Terminal 2.

When was the latest WN4138 flight?

The latest flight took off on Monday, August 4th, 2025 with the flight status being Landed on 11:13.

How else can the flight WN4138 be referenced as?

This Southwest Airlines flight can also be referenced as SWA4138, WN 4138, SWA 4138.

How often is flight WN4138 delayed?

On average, 20% of all WN4138 flights are delayed. The average delay is 41 minutes.

Can I get compensation for my delayed or cancelled WN4138 flight or baggage issues?

If your WN4138 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 WN4138 Flight Tracker above for more details.

WN4138 and Ontario ONT to Oakland OAK Flights

Other flights departing from Ontario ONT: WN1194, WN1600, WN1070, WN4150

Other flights arriving at Oakland OAK: WN2534, WN967, WN2753, WN1770

All flights connecting Ontario ONT to Oakland OAK.

WN4138 Southwest Airlines Flight: Ontario to Oakland Route Map

WN4138 Southwest Airlines Flight Map: Ontario to Oakland
Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.