| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Mar 04 | IAD | BUF | 17:45 | 18:39 |
Landed
|
Track > |
| Mar 03 | IAD | BUF | 17:49 | 18:39 |
Landed
|
Track > |
| Mar 02 | IAD | BUF | 20:03 | 19:06 |
Unknown
|
Track > |
| Mar 01 | IAD | BUF | 17:43 | 18:33 |
Landed
|
Track > |
| Feb 28 | IAD | BUF | 18:26 | 19:15 |
Unknown
|
Track > |
| Feb 27 | IAD | BUF | 17:39 | 18:32 |
Unknown
|
Track > |
| Feb 26 | IAD | BUF | 17:34 | 18:23 |
Landed
|
Track > |
| Feb 25 | IAD | BUF | 17:49 | 18:43 |
Landed
|
Track > |
| Feb 24 | IAD | BUF | 17:52 | 18:40 |
Landed
|
Track > |
| Feb 23 | IAD | BUF | 17:41 | 18:31 |
Landed
|
Track > |
United Airlines Flight UA4383 connects Washington, United States to Buffalo, United States, taking off from Washington Dulles International Airport IAD and landing at Buffalo Niagara International Airport BUF.
How long is the UA4383 flight from Washington to Buffalo?
The average flight time from Washington to Buffalo is 50 minutes. The flight distance is 457 km / 284 miles and the average flight speed is 517 km/h / 321 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA4383 Washington to Buffalo?
The Airportia On-Time Performance Rating for United Airlines Flight UA4383 is 5/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA4383 arriving at?
Flight UA4383 arrives at Buffalo Niagara International Airport (BUF) Terminal A.
When was the latest UA4383 flight?
The latest flight took off on Thursday, March 5th, 2026 with the flight status being Landed on 18:39.
How else can the flight UA4383 be referenced as?
This United Airlines flight can also be referenced as UAL4383, UA 4383, UAL 4383.
How often is flight UA4383 delayed?
On average, 10% of all UA4383 flights are delayed. The average delay is 9 minutes.
Can I get compensation for my delayed or cancelled UA4383 flight or baggage issues?
If your UA4383 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 UA4383 Flight Tracker above for more details.
Flight UA4383 is code-shared by 4 airlines using the flight numbers AV2042, CM2142, LH7566, SN8933
Other flights departing from Washington IAD: UA2241, UA4233, UA4251, UA3552
Other flights arriving at Buffalo BUF: DL1322, WN854, WN3238, UA4401
All flights connecting Washington IAD to Buffalo BUF.