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AS 4378 Chicago to Pittsburgh Flight Status

Alaska Airlines Flight AS4378 from Chicago O'Hare International Airport ORD to Pittsburgh International Airport PIT is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on July 3rd, 2025.
Check the table below for AS4378's most recent flight history:

AS 4378 Flight Status & Schedule

Date Departure Arrival Status
Jul 03 07:30 09:31
Landed
Track >
Jun 30 07:47 09:50
Landed
Track >
Jun 29 07:56 09:57
Landed
Track >
Jun 22 07:45 09:47
Landed
Track >

Alaska Airlines AS 4378 Chicago to Pittsburgh Flight Information

Alaska Airlines Flight AS4378 connects Chicago, United States to Pittsburgh, United States, taking off from Chicago O'Hare International Airport ORD and landing at Pittsburgh International Airport PIT.

How long is the AS4378 flight from Chicago to Pittsburgh?

The average flight time from Chicago to Pittsburgh is 1 hour and 1 minute. The flight distance is 662 km / 412 miles and the average flight speed is 644 km/h / 400 mph.

What is the On-Time Performance (OTP) of Alaska Airlines Flight AS4378 Chicago to Pittsburgh?

The Airportia On-Time Performance Rating for Alaska Airlines Flight AS4378 is 5/5 stars. This metric is calculated using data from the past 10 flights.

When was the latest AS4378 flight?

The latest flight took off on Thursday, July 3rd, 2025 with the flight status being Landed on 09:31.

How else can the flight AS4378 be referenced as?

This Alaska Airlines flight can also be referenced as ASA4378, AS 4378, ASA 4378.

How often is flight AS4378 delayed?

On average, 25% of all AS4378 flights are delayed. The average delay is 6 minutes.

Can I get compensation for my delayed or cancelled AS4378 flight or baggage issues?

If your AS4378 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 AS4378 Flight Tracker above for more details.

AS4378 and Chicago ORD to Pittsburgh PIT Flights

This is a multi leg flight of Alaska Airlines AS4378. Next leg is Pittsburgh to Chicago

Other flights departing from Chicago ORD: AA3943, AA4299, UA5906, NK2157

Other flights arriving at Pittsburgh PIT: AA4299, DL4025, G41144, AA5737

All flights connecting Chicago ORD to Pittsburgh PIT.

AS4378 Alaska Airlines Flight: Chicago to Pittsburgh Route Map

AS4378 Alaska Airlines Flight Map: Chicago to Pittsburgh
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.