Are you looking for the June 4th, 2026 AS 4734 Chicago to Boston flight? Click here to go to our AS4734 Chicago to Boston Flight Status page >

AS 4734 St. Louis to Chicago Flight Status

Alaska Airlines Flight AS4734 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 September 1st, 2025.
Check the table below for AS4734's most recent flight history:

AS 4734 Flight Status & Schedule

Date Departure Arrival Status
Sep 01 21:35 22:19
Delayed
Track >
Aug 31 21:02 21:50
Landed Late
Track >
Aug 29 20:07 20:52
Landed
Track >
Aug 28 21:06 21:55
Landed Late
Track >
Aug 25 21:14 22:02
Landed Late
Track >

Alaska Airlines AS 4734 St. Louis to Chicago Flight Information

Alaska Airlines Flight AS4734 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 AS4734 flight from St. Louis to Chicago?

The average flight time from St. Louis to Chicago is 47 minutes. The flight distance is 415 km / 258 miles and the average flight speed is 453 km/h / 282 mph.

What is the On-Time Performance (OTP) of Alaska Airlines Flight AS4734 St. Louis to Chicago?

The Airportia On-Time Performance Rating for Alaska Airlines Flight AS4734 is 4.7/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight AS4734 arriving at?

Flight AS4734 arrives at Chicago O'Hare International Airport (ORD) Terminal 3.

When was the latest AS4734 flight?

The latest flight took off on Tuesday, September 2nd, 2025 with the flight status being En-Route on 22:19.

How else can the flight AS4734 be referenced as?

This Alaska Airlines flight can also be referenced as ASA4734, AS 4734, ASA 4734.

How often is flight AS4734 delayed?

On average, 50% of all AS4734 flights are delayed. The average delay is 38 minutes.

Can I get compensation for my delayed or cancelled AS4734 flight or baggage issues?

If your AS4734 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 AS4734 Flight Tracker above for more details.

AS4734 and St. Louis STL to Chicago ORD Flights

Other flights departing from St. Louis STL: AA6325, OO6325, AA6480, WN7

Other flights arriving at Chicago ORD: AA3454, AA6347, AA6325, OO6325

All flights connecting St. Louis STL to Chicago ORD.

AS4734 Alaska Airlines Flight: St. Louis to Chicago Route Map

AS4734 Alaska Airlines Flight Map: St. Louis to Chicago
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.