UA4539 United Airlines - Flight Status
Below, you can find details about United Airlines flight UA4539, which currently operates between the airports of Newark - Newark Liberty International Airport (Airport Code EWR) and Buffalo - Buffalo Niagara International Airport (Airport Code BUF).
This flight data pertains specifically to the flight's details for Friday, July 24, 2026.
Table of contents:
Flight Status Codeshare Flights Additional Information Alternative Flights Punctuality and delays Last Past Flights UA4539
Flight Status Codeshare Flights Additional Information Alternative Flights Punctuality and delays Last Past Flights UA4539
UA4539 On Time performance:
n/a
It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions. Flight Status
UA4539 United Airlines to Buffalo
We only provide flight information for yesterday, today and tomorrow. This flight is not scheduled for this interval of time.
We only provide flight information for yesterday, today and tomorrow. This flight is not scheduled for this interval of time.
Airline information
United Airlines
Departure
Newark (EWR)
July 24, 2026
Newark Liberty International Airport
Arrival
Buffalo (BUF)
July 24, 2026
Buffalo Niagara International Airport
Disclaimer
The information displayed on this website is gathered from third-party providers with a wide reputation on the sector, which in turn obtain the information from the airlines. This data is provided only for informative purposes. www.airport-ewr.com assumes no responsibility for loss or damage as a result of relying on information posted here. Please contact your airline to verify flight status.
Codeshare Flights
This flight is shared with other airlines, this means that these other flights are the same:
- CM1272 - Copa Airlines
- LH8575 - Lufthansa
Additional Information
Which is the frequency of flight UA4539?
The flight UA4539 is currently not scheduled at Newark Airport.
Which is the distance of flight UA4539?
The distance between the two airports is 281 miles.
Are the departure airport and arrival airport at the same Time Zone?
Yes, both airports are in the same timezone.
The flight UA4539 is currently not scheduled at Newark Airport.
Which is the distance of flight UA4539?
The distance between the two airports is 281 miles.
Are the departure airport and arrival airport at the same Time Zone?
Yes, both airports are in the same timezone.
Alternative Flights
The following airline serve the same route between Newark and Buffalo:
United Airlines - Flight Number: UA3476. (On Time performance: 72 - Average Delay: 34 minutes)
United Airlines - Flight Number: UA3476. (On Time performance: 72 - Average Delay: 34 minutes)
Punctuality and delays
It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.
Delays analyzed by Weekday: We have gathered available data from last six months, spanning from June 26, 2026 to July 17, 2026. Next, you can observe the results broken down by day of the week: number of flights analyzed, on-time performance per day, and average delay per day.
Delays analyzed by Month: It is not possible to calculate the On-Time Performance for this flight accurately by month due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Weekday: We have gathered available data from last six months, spanning from June 26, 2026 to July 17, 2026. Next, you can observe the results broken down by day of the week: number of flights analyzed, on-time performance per day, and average delay per day.
Last Past Flights UA4539
Date
Departure
Arrival
Duration
Aircraft
Status
Friday
24 July
24 July
08:49 pm
Newark (EWR)
Newark (EWR)
10:33 pm
Buffalo (BUF)
Buffalo (BUF)
01h 44min
Canadair (Bomb
Canadair (Bomb
Landed - On-time
Friday
17 July
17 July
11:12 pm
Newark (EWR)
Newark (EWR)
12:40 am
Buffalo (BUF)
Buffalo (BUF)
01h 28min
Canadair (Bomb
Canadair (Bomb
Landed - Delayed
Friday
10 July
10 July
08:40 pm
Newark (EWR)
Newark (EWR)
10:34 pm
Buffalo (BUF)
Buffalo (BUF)
01h 54min
Canadair (Bomb
Canadair (Bomb
Landed - On-time
Friday
03 July
03 July
11:30 pm
Newark (EWR)
Newark (EWR)
01:10 am
Buffalo (BUF)
Buffalo (BUF)
01h 40min
Canadair (Bomb
Canadair (Bomb