AS 4556 Chicago to Missoula Flight Status

Alaska Airlines Flight AS4556 from Chicago O'Hare International Airport ORD to Missoula International Airport MSO is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on September 1st, 2025.
Check the table below for AS4556's most recent flight history:

AS 4556 Flight Status & Schedule

Date Departure Arrival Status
Sep 01 18:02 20:10
Landed
Track >
Aug 31 20:51 22:49
Landed
Track >
Aug 30 15:35 17:48
Landed
Track >
Aug 29 21:27 23:27
Landed
Track >
Aug 28 21:00 23:06
Landed
Track >

Alaska Airlines AS 4556 Chicago to Missoula Flight Information

Alaska Airlines Flight AS4556 connects Chicago, United States to Missoula, United States, taking off from Chicago O'Hare International Airport ORD and landing at Missoula International Airport MSO.

How long is the AS4556 flight from Chicago to Missoula?

The average flight time from Chicago to Missoula is 3 hours and 13 minutes. The flight distance is 2139 km / 1329 miles and the average flight speed is 666 km/h / 414 mph.

What is the On-Time Performance (OTP) of Alaska Airlines Flight AS4556 Chicago to Missoula?

The Airportia On-Time Performance Rating for Alaska Airlines Flight AS4556 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.

When was the latest AS4556 flight?

The latest flight took off on Tuesday, September 2nd, 2025 with the flight status being Landed on 20:10.

How else can the flight AS4556 be referenced as?

This Alaska Airlines flight can also be referenced as ASA4556, AS 4556, ASA 4556.

How often is flight AS4556 delayed?

On average, 30% of all AS4556 flights are delayed. The average delay is 15 minutes.

Can I get compensation for my delayed or cancelled AS4556 flight or baggage issues?

If your AS4556 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 AS4556 Flight Tracker above for more details.

AS4556 and Chicago ORD to Missoula MSO Flights

Other flights departing from Chicago ORD: AA3848, AA6299, AA6347, 7L4882

Other flights arriving at Missoula MSO: AA3848, G480

All flights connecting Chicago ORD to Missoula MSO.

AS4556 Alaska Airlines Flight: Chicago to Missoula Route Map

AS4556 Alaska Airlines Flight Map: Chicago to Missoula
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.