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AS4257 Flight Status Alaska Airlines: Chicago to St. Louis (ASA4257)

AS 4257 Chicago to St. Louis Flight Status

Alaska Airlines Flight AS4257 from Chicago O'Hare International Airport ORD to St. Louis Lambert International Airport STL is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on July 2nd, 2025.
Check the table below for AS4257's most recent flight history:

AS 4257 Flight Status & Schedule

Date Departure Arrival Status
Jul 02 14:51 15:35
Landed
 Track >
Jun 25 15:09 15:54
Landed
 Track >
< All ORD Departures All STL Arrivals >

Alaska Airlines AS 4257 Chicago to St. Louis Flight Information

Alaska Airlines Flight AS4257 connects Chicago, United States to St. Louis, United States, taking off from Chicago O'Hare International Airport ORD and landing at St. Louis Lambert International Airport STL.

How long is the AS4257 flight from Chicago to St. Louis?

The average flight time from Chicago to St. Louis is 44 minutes. The flight distance is 415 km / 258 miles and the average flight speed is 560 km/h / 348 mph.

What is the On-Time Performance (OTP) of Alaska Airlines Flight AS4257 Chicago to St. Louis?

The Airportia On-Time Performance Rating for Alaska Airlines Flight AS4257 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight AS4257 arriving at?

Flight AS4257 arrives at St. Louis Lambert International Airport (STL) Terminal 1.

When was the latest AS4257 flight?

The latest flight took off on Wednesday, July 2nd, 2025 with the flight status being Landed on 15:35.

How else can the flight AS4257 be referenced as?

This Alaska Airlines flight can also be referenced as ASA4257, AS 4257, ASA 4257.

How often is flight AS4257 delayed?

On average, 50% of all AS4257 flights are delayed. The average delay is 10 minutes.

Can I get compensation for my delayed or cancelled AS4257 flight or baggage issues?

If your AS4257 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 AS4257 Flight Tracker above for more details.

AS4257 and Chicago ORD to St. Louis STL Flights

This is a multi leg flight of Alaska Airlines AS4257. Next leg is St. Louis to Chicago

Other flights departing from Chicago ORD: UA3454, AA3727, DL2810, AA3130

Other flights arriving at St. Louis STL: WN6560, AA3727, DL2598, DL3934

All flights connecting Chicago ORD to St. Louis STL.

AS4257 Alaska Airlines Flight: Chicago to St. Louis Route Map

AS4257 Alaska Airlines Flight Map: Chicago to St. Louis
Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
New Flights: AD4249 S43401 IZ289 KJ5419 ZP1861 9M9991 UP784 WN4927 PC4674 RR1063
See Also: Flight Tracker Airports Airlines News Flights Monitor Delay Compensation
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.