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

AS 4257 St. Louis to Chicago Flight Status

Alaska Airlines Flight AS4257 from St. Louis Lambert International Airport STL to Chicago O'Hare International Airport ORD 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 16:33 17:22
Landed
 Track >
Jun 25 19:41 20:28
Landed Late
 Track >
< All STL Departures All ORD Arrivals >

Alaska Airlines AS 4257 St. Louis to Chicago Flight Information

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

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

The average flight time from St. Louis to Chicago is 48 minutes. The flight distance is 415 km / 258 miles and the average flight speed is 519 km/h / 323 mph.

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

The Airportia On-Time Performance Rating for Alaska Airlines Flight AS4257 is 3.6/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight AS4257 arriving at?

Flight AS4257 arrives at Chicago O'Hare International Airport (ORD) Terminal 3.

When was the latest AS4257 flight?

The latest flight took off on Wednesday, July 2nd, 2025 with the flight status being Landed on 17:22.

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 165 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 St. Louis STL to Chicago ORD Flights

Incoming flight is AA3727 Chicago ORD to St. Louis STL.

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

Other flights departing from St. Louis STL: WN6385, AA3727, WN937, WN1482

Other flights arriving at Chicago ORD: AA4405, AA3727, UA5697, UA4448

All flights connecting St. Louis STL to Chicago ORD.

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

AS4257 Alaska Airlines Flight Map: St. Louis to Chicago
Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
New Flights: WN4927 PC4674 RR1063 4Y4082 K923 FI136 HV2717 A24264 S41406 S41407
See Also: Flight Tracker Airports Airlines News Flights Monitor Delay Compensation
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.