| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| May 20 | PHL | IAD | 17:48 | 16:20 |
Unknown
|
Track > |
| May 19 | PHL | IAD | 16:29 | 17:00 |
Delayed
|
Track > |
| May 18 | PHL | IAD | 15:54 | 16:20 |
Unknown
|
Track > |
| May 17 | PHL | IAD | 15:17 | 15:55 |
Landed
|
Track > |
| May 16 | PHL | IAD | 17:24 | 16:20 |
Unknown
|
Track > |
| May 15 | PHL | IAD | 15:12 | 15:53 |
Landed
|
Track > |
| May 14 | PHL | IAD | 15:12 | 15:50 |
Landed
|
Track > |
| May 13 | PHL | IAD | 15:26 | 16:03 |
Landed
|
Track > |
| May 12 | PHL | IAD | 15:14 | 15:51 |
Landed
|
Track > |
| May 11 | PHL | IAD | 15:03 | 15:47 |
Landed
|
Track > |
United Airlines Flight UA4540 connects Philadelphia, United States to Washington, United States, taking off from Philadelphia International Airport PHL and landing at Washington Dulles International Airport IAD.
How long is the UA4540 flight from Philadelphia to Washington?
The average flight time from Philadelphia to Washington is 38 minutes. The flight distance is 217 km / 135 miles and the average flight speed is 297 km/h / 185 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA4540 Philadelphia to Washington?
The Airportia On-Time Performance Rating for United Airlines Flight UA4540 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest UA4540 flight?
The latest flight took off on Wednesday, May 20th, 2026 with the flight status being Unknown on 16:20.
How else can the flight UA4540 be referenced as?
This United Airlines flight can also be referenced as UAL4540, UA 4540, UAL 4540.
How often is flight UA4540 delayed?
On average, 10% of all UA4540 flights are delayed. The average delay is 40 minutes.
Can I get compensation for my delayed or cancelled UA4540 flight or baggage issues?
If your UA4540 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 UA4540 Flight Tracker above for more details.
Flight UA4540 is code-shared by 1 airline using the flight number AC3634
Other flights departing from Philadelphia PHL: AA1534, AA5455, AA551, AA4708
Other flights arriving at Washington IAD: UA2851, UA4250, UA4353, UA2125
All flights connecting Philadelphia PHL to Washington IAD.