| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jan 05 | PHL | IAD | 14:57 | 15:30 |
Landed
|
Track > |
| Jan 04 | PHL | IAD | 15:02 | 15:41 |
Landed
|
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| Jan 03 | PHL | IAD | 15:09 | 15:51 |
Landed
|
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| Jan 02 | PHL | IAD | 15:40 | 16:22 |
Landed Late
|
Track > |
| Jan 01 | PHL | IAD | 15:32 | 16:16 |
Landed
|
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| Dec 31 | PHL | IAD | 15:05 | 15:38 |
Landed
|
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| Dec 30 | PHL | IAD | 15:32 | 16:09 |
Landed
|
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| Dec 29 | PHL | IAD | 15:01 | 15:52 |
Landed
|
Track > |
| Dec 28 | PHL | IAD | 15:40 | 16:14 |
Landed
|
Track > |
| Dec 27 | PHL | IAD | 15:37 | 16:19 |
Landed
|
Track > |
United Airlines Flight UA4173 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 UA4173 flight from Philadelphia to Washington?
The average flight time from Philadelphia to Washington is 39 minutes. The flight distance is 217 km / 135 miles and the average flight speed is 333 km/h / 207 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA4173 Philadelphia to Washington?
The Airportia On-Time Performance Rating for United Airlines Flight UA4173 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA4173 arriving at?
Flight UA4173 arrives at Washington Dulles International Airport (IAD) Terminal C.
When was the latest UA4173 flight?
The latest flight took off on Monday, January 5th, 2026 with the flight status being Landed on 15:30.
How else can the flight UA4173 be referenced as?
This United Airlines flight can also be referenced as UAL4173, UA 4173, UAL 4173.
How often is flight UA4173 delayed?
On average, 50% of all UA4173 flights are delayed. The average delay is 11 minutes.
Can I get compensation for my delayed or cancelled UA4173 flight or baggage issues?
If your UA4173 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 UA4173 Flight Tracker above for more details.
Flight UA4173 is code-shared by 3 airlines using the flight numbers AC3634, AV2241, SN8955
Other flights departing from Philadelphia PHL: AA6125, AA5912, AA419, AA2171
Other flights arriving at Washington IAD: UA3538, UA4247, UA4475, UA3985
All flights connecting Philadelphia PHL to Washington IAD.