| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| May 20 | BUF | ORD | 15:35 | 16:02 |
Landed
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Track > |
| May 19 | BUF | ORD | 16:14 | 16:34 |
Landed Late
|
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| May 18 | BUF | ORD | 18:45 | 16:10 |
En-Route
|
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| May 17 | BUF | ORD | 15:11 | 15:27 |
Landed
|
Track > |
| May 16 | BUF | ORD | 15:50 | 16:09 |
Landed
|
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| May 15 | BUF | ORD | 16:18 | 16:43 |
Landed Late
|
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| May 14 | BUF | ORD | 15:56 | 16:14 |
Landed
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| May 13 | BUF | ORD | 15:12 | 15:30 |
Landed
|
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| May 12 | BUF | ORD | 15:01 | 15:24 |
Landed
|
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| May 11 | BUF | ORD | 15:06 | 15:30 |
Landed
|
Track > |
Alaska Airlines Flight AS4373 connects Buffalo, United States to Chicago, United States, taking off from Buffalo Niagara International Airport BUF and landing at Chicago O'Hare International Airport ORD.
How long is the AS4373 flight from Buffalo to Chicago?
The average flight time from Buffalo to Chicago is 1 hour and 21 minutes. The flight distance is 760 km / 472 miles and the average flight speed is 543 km/h / 337 mph.
What is the On-Time Performance (OTP) of Alaska Airlines Flight AS4373 Buffalo to Chicago?
The Airportia On-Time Performance Rating for Alaska Airlines Flight AS4373 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight AS4373 arriving at?
Flight AS4373 arrives at Chicago O'Hare International Airport (ORD) Terminal 3.
When was the latest AS4373 flight?
The latest flight took off on Wednesday, May 20th, 2026 with the flight status being Landed on 16:02.
How else can the flight AS4373 be referenced as?
This Alaska Airlines flight can also be referenced as ASA4373, AS 4373, ASA 4373.
How often is flight AS4373 delayed?
On average, 30% of all AS4373 flights are delayed. The average delay is 20 minutes.
Can I get compensation for my delayed or cancelled AS4373 flight or baggage issues?
If your AS4373 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 AS4373 Flight Tracker above for more details.
Other flights departing from Buffalo BUF: AA2957, DL5362, OO4021, WN342
Other flights arriving at Chicago ORD: AA2957, AA4994, OO4994, UA4771
All flights connecting Buffalo BUF to Chicago ORD.