| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| May 10 | IND | STL | 01:50 | 01:33 |
Landed
|
Track > |
Alaska Airlines Flight AS4121 connects Indianapolis, United States to St. Louis, United States, taking off from Indianapolis International Airport IND and landing at St. Louis Lambert International Airport STL.
How long is the AS4121 flight from Indianapolis to St. Louis?
The average flight time from Indianapolis to St. Louis is 43 minutes. The flight distance is 367 km / 228 miles and the average flight speed is 512 km/h / 318 mph.
What is the On-Time Performance (OTP) of Alaska Airlines Flight AS4121 Indianapolis to St. Louis?
The Airportia On-Time Performance Rating for Alaska Airlines Flight AS4121 is 4.8/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight AS4121 arriving at?
Flight AS4121 arrives at St. Louis Lambert International Airport (STL) Terminal 1.
When was the latest AS4121 flight?
The latest flight took off on Sunday, May 10th, 2026 with the flight status being Landed on 01:33.
How else can the flight AS4121 be referenced as?
This Alaska Airlines flight can also be referenced as ASA4121, AS 4121, ASA 4121.
How often is flight AS4121 delayed?
On average, 100% of all AS4121 flights are delayed. The average delay is 12 minutes.
Can I get compensation for my delayed or cancelled AS4121 flight or baggage issues?
If your AS4121 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 AS4121 Flight Tracker above for more details.
Other flights departing from Indianapolis IND: F94838, WN2278, WN2998, AA1010
Other flights arriving at St. Louis STL: WN1644, WN3243, WN3307, AA1010
All flights connecting Indianapolis IND to St. Louis STL.