| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Feb 11 | ORD | BUF | 08:15 | 10:22 |
Landed
|
Track > |
| Feb 10 | ORD | BUF | 08:22 | 10:30 |
Unknown
|
Track > |
| Feb 09 | ORD | BUF | 08:21 | 10:30 |
Landed
|
Track > |
| Feb 08 | ORD | BUF | 08:33 | 10:40 |
Landed
|
Track > |
| Feb 07 | ORD | BUF | 09:14 | 11:27 |
Landed Late
|
Track > |
| Feb 06 | ORD | BUF | 08:37 | 10:52 |
Landed
|
Track > |
| Feb 05 | ORD | BUF | 08:15 | 10:27 |
Landed
|
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| Feb 04 | ORD | BUF | 08:14 | 10:28 |
Landed
|
Track > |
| Feb 03 | ORD | BUF | 08:19 | 10:27 |
Landed
|
Track > |
| Feb 02 | ORD | BUF | 10:13 | 10:52 |
Unknown
|
Track > |
Alaska Airlines Flight AS4001 connects Chicago, United States to Buffalo, United States, taking off from Chicago O'Hare International Airport ORD and landing at Buffalo Niagara International Airport BUF.
How long is the AS4001 flight from Chicago to Buffalo?
The average flight time from Chicago to Buffalo is 1 hour and 10 minutes. The flight distance is 760 km / 472 miles and the average flight speed is 629 km/h / 391 mph.
What is the On-Time Performance (OTP) of Alaska Airlines Flight AS4001 Chicago to Buffalo?
The Airportia On-Time Performance Rating for Alaska Airlines Flight AS4001 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest AS4001 flight?
The latest flight took off on Wednesday, February 11th, 2026 with the flight status being Landed on 10:22.
How else can the flight AS4001 be referenced as?
This Alaska Airlines flight can also be referenced as ASA4001, AS 4001, ASA 4001.
How often is flight AS4001 delayed?
On average, 10% of all AS4001 flights are delayed. The average delay is 35 minutes.
Can I get compensation for my delayed or cancelled AS4001 flight or baggage issues?
If your AS4001 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 AS4001 Flight Tracker above for more details.
Other flights departing from Chicago ORD: AA3344, AA3228, AA2156, AA3497
Other flights arriving at Buffalo BUF: AA3344, UA4384, OO5529, WN1268
All flights connecting Chicago ORD to Buffalo BUF.