OO 4998 Chicago to Milwaukee Flight Status

SkyWest Airlines Flight OO4998 from Chicago O'Hare International Airport ORD to Milwaukee General Mitchell International Airport MKE is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on September 18th, 2025.
Check the table below for OO4998's most recent flight history:

OO 4998 Flight Status & Schedule

Date Departure Arrival Status
Sep 18 09:26 09:47
Landed
Track >
Sep 16 09:31 09:53
Landed
Track >

SkyWest Airlines OO 4998 Chicago to Milwaukee Flight Information

SkyWest Airlines Flight OO4998 connects Chicago, United States to Milwaukee, United States, taking off from Chicago O'Hare International Airport ORD and landing at Milwaukee General Mitchell International Airport MKE.

How long is the OO4998 flight from Chicago to Milwaukee?

The average flight time from Chicago to Milwaukee is 21 minutes. The flight distance is 108 km / 67 miles and the average flight speed is 301 km/h / 187 mph.

What is the On-Time Performance (OTP) of SkyWest Airlines Flight OO4998 Chicago to Milwaukee?

The Airportia On-Time Performance Rating for SkyWest Airlines Flight OO4998 is 5/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight OO4998 arriving at?

Flight OO4998 arrives at Milwaukee General Mitchell International Airport (MKE) Terminal 1.

When was the latest OO4998 flight?

The latest flight took off on Thursday, September 18th, 2025 with the flight status being Landed on 09:47.

How else can the flight OO4998 be referenced as?

This SkyWest Airlines flight can also be referenced as SKW4998, OO 4998, SKW 4998.

How often is flight OO4998 delayed?

On average, 0% of all OO4998 flights are delayed. The average delay is 0 minutes.

Can I get compensation for my delayed or cancelled OO4998 flight or baggage issues?

If your OO4998 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 OO4998 Flight Tracker above for more details.

OO4998 and Chicago ORD to Milwaukee MKE Flights

Flight OO4998 is code-shared by 1 airline using the flight number AS4139

Other flights departing from Chicago ORD: UA3674, UA2137, UA5427, UA307

Other flights arriving at Milwaukee MKE: UA3617, WN2233, WN2653, WN3442

All flights connecting Chicago ORD to Milwaukee MKE.

OO4998 SkyWest Airlines Flight: Chicago to Milwaukee Route Map

OO4998 SkyWest Airlines Flight Map: Chicago to Milwaukee
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.