AS 4520 Chicago to Baltimore Flight Status

Alaska Airlines Flight AS4520 from Chicago O'Hare International Airport ORD to Baltimore Washington International Airport BWI is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on December 15th, 2025.
Check the table below for AS4520's most recent flight history:

AS 4520 Flight Status & Schedule

Date Departure Arrival Status
Dec 15 16:54 19:16
Landed Late
Track >
Dec 14 16:04 18:40
Landed
Track >
Dec 12 16:16 18:41
Landed
Track >
Dec 11 16:28 18:48
Landed
Track >
Dec 08 16:46 19:12
Landed
Track >

Alaska Airlines AS 4520 Chicago to Baltimore Flight Information

Alaska Airlines Flight AS4520 connects Chicago, United States to Baltimore, United States, taking off from Chicago O'Hare International Airport ORD and landing at Baltimore Washington International Airport BWI.

How long is the AS4520 flight from Chicago to Baltimore?

The average flight time from Chicago to Baltimore is 1 hour and 24 minutes. The flight distance is 998 km / 620 miles and the average flight speed is 709 km/h / 441 mph.

What is the On-Time Performance (OTP) of Alaska Airlines Flight AS4520 Chicago to Baltimore?

The Airportia On-Time Performance Rating for Alaska Airlines Flight AS4520 is 4.6/5 stars. This metric is calculated using data from the past 10 flights.

When was the latest AS4520 flight?

The latest flight took off on Monday, December 15th, 2025 with the flight status being Landed on 19:16.

How else can the flight AS4520 be referenced as?

This Alaska Airlines flight can also be referenced as ASA4520, AS 4520, ASA 4520.

How often is flight AS4520 delayed?

On average, 40% of all AS4520 flights are delayed. The average delay is 55 minutes.

Can I get compensation for my delayed or cancelled AS4520 flight or baggage issues?

If your AS4520 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 AS4520 Flight Tracker above for more details.

AS4520 and Chicago ORD to Baltimore BWI Flights

Other flights departing from Chicago ORD: DL972, AA3878, AA4938, AA5002

Other flights arriving at Baltimore BWI: WN1485, WN3199, WN2253, AA3878

All flights connecting Chicago ORD to Baltimore BWI.

AS4520 Alaska Airlines Flight: Chicago to Baltimore Route Map

AS4520 Alaska Airlines Flight Map: Chicago to Baltimore
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.