| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Apr 06 | ORD | BUF | 09:31 | 11:39 |
Landed
|
Track > |
| Apr 05 | ORD | BUF | 09:13 | 11:17 |
Unknown
|
Track > |
| Apr 03 | ORD | BUF | 09:31 | 11:38 |
Unknown
|
Track > |
| Apr 02 | ORD | BUF | 11:30 | 11:49 |
Unknown
|
Track > |
| Apr 01 | ORD | BUF | 09:44 | 11:52 |
Landed
|
Track > |
| Mar 31 | ORD | BUF | 09:41 | 11:54 |
Unknown
|
Track > |
| Mar 30 | ORD | BUF | 09:11 | 11:18 |
En-Route
|
Track > |
| Mar 29 | ORD | BUF | 09:15 | 11:23 |
Unknown
|
Track > |
| Mar 27 | ORD | BUF | 09:20 | 11:24 |
Landed
|
Track > |
| Mar 26 | ORD | BUF | 09:21 | 11:26 |
Landed
|
Track > |
American Airlines Flight AA4420 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 AA4420 flight from Chicago to Buffalo?
The average flight time from Chicago to Buffalo is 1 hour and 7 minutes. The flight distance is 760 km / 472 miles and the average flight speed is 656 km/h / 408 mph.
What is the On-Time Performance (OTP) of American Airlines Flight AA4420 Chicago to Buffalo?
The Airportia On-Time Performance Rating for American Airlines Flight AA4420 is 5/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest AA4420 flight?
The latest flight took off on Monday, April 6th, 2026 with the flight status being Landed on 11:39.
How else can the flight AA4420 be referenced as?
This American Airlines flight can also be referenced as AAL4420, AA 4420, AAL 4420.
How often is flight AA4420 delayed?
On average, 20% of all AA4420 flights are delayed. The average delay is 4 minutes.
Can I get compensation for my delayed or cancelled AA4420 flight or baggage issues?
If your AA4420 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 AA4420 Flight Tracker above for more details.
Flight AA4420 is code-shared by 2 airlines using the flight numbers AS6240, JL7506
Other flights departing from Chicago ORD: AA3601, AA3845, AA4504, UA281
Other flights arriving at Buffalo BUF: WN754, AA1203, DL3983, AA5531
All flights connecting Chicago ORD to Buffalo BUF.