UA4540 United Airlines - Flight Status
Below, you can find details about United Airlines flight UA4540, which currently operates between the airports of Dulles - Washington Dulles International Airport (Airport Code IAD) and Philadelphia - Philadelphia International Airport (Airport Code PHL).
This flight data pertains specifically to the flight's details for Saturday, December 20, 2025.
Table of contents:
Flight Status Additional Information Alternative Flights Punctuality and delays Last Past Flights UA4540
Flight Status Additional Information Alternative Flights Punctuality and delays Last Past Flights UA4540
UA4540 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
UA4540 United Airlines from Dulles
Landed - On-time
Flight Status for Saturday December 20, 2025
This flight is also scheduled for Today (December 21, 2025). See it here
This flight is also scheduled for Tomorrow (December 22, 2025). See it here
Landed - On-time
Flight Status for Saturday December 20, 2025
Airline information
United Airlines
Equipment: Canadair (Bombardier) Regional Jet 550
Departure
Dulles (IAD)
December 20, 2025
Washington Dulles International Airport
Departed at:
10:17 pm
Terminal:
-
Gate:
A3C
Scheduled Departure Time: 10:20 pm
Arrival
Philadelphia (PHL)
December 20, 2025
Philadelphia International Airport
Arrived at:
11:17 pm
Terminal:
D
Gate:
D7
Scheduled Arrival Time: 11:30 pm
Baggage: UXH
Disclaimer
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Additional Information
Which is the frequency of flight UA4540?
The flight UA4540 is scheduled to flight on Thursday, Friday, Saturday, Sunday on a weekly basis.
Which is the distance of flight UA4540?
The distance between the two airports is 134 miles.
Are the departure airport and arrival airport at the same Time Zone?
Yes, both airports are in the same timezone.
The flight UA4540 is scheduled to flight on Thursday, Friday, Saturday, Sunday on a weekly basis.
Which is the distance of flight UA4540?
The distance between the two airports is 134 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 Dulles and Philadelphia:
United Airlines - Flight Number: UA3698. (On Time performance: 88 - Average Delay: 6 minutes)
United Airlines - Flight Number: UA3698. (On Time performance: 88 - Average Delay: 6 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 Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
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 Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
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
Last Past Flights UA4540
Date
Departure
Arrival
Duration
Aircraft
Status
Saturday
20 December
20 December
10:17 pm
Dulles (IAD)
Dulles (IAD)
11:17 pm
Philadelphia (PHL)
Philadelphia (PHL)
01h 00min
Canadair (Bomb
Canadair (Bomb
Landed - On-time
Friday
19 December
19 December
06:10 am
Dulles (IAD)
Dulles (IAD)
07:15 am
Philadelphia (PHL)
Philadelphia (PHL)
01h 05min
Canadair (Bomb
Canadair (Bomb
Landed - Delayed
Thursday
18 December
18 December
10:16 pm
Dulles (IAD)
Dulles (IAD)
11:16 pm
Philadelphia (PHL)
Philadelphia (PHL)
01h 00min
Canadair (Bomb
Canadair (Bomb
Landed - On-time