| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Apr 29 | PWM | IAD | 10:08 | 11:36 |
Landed
|
Track > |
| Apr 28 | PWM | IAD | 10:07 | 11:29 |
Landed
|
Track > |
| Apr 27 | PWM | IAD | 10:06 | 11:27 |
Landed
|
Track > |
| Apr 26 | PWM | IAD | 10:00 | 11:26 |
Landed
|
Track > |
| Apr 25 | PWM | IAD | 10:03 | 11:25 |
Landed
|
Track > |
| Apr 24 | PWM | IAD | 10:04 | 11:26 |
Landed
|
Track > |
| Apr 23 | PWM | IAD | 10:04 | 11:25 |
Landed
|
Track > |
| Apr 22 | PWM | IAD | 10:07 | 11:32 |
Landed
|
Track > |
| Apr 21 | PWM | IAD | 10:43 | 11:58 |
Landed
|
Track > |
| Apr 20 | PWM | IAD | 10:08 | 11:36 |
Landed
|
Track > |
United Airlines Flight UA4478 connects Portland, United States to Washington, United States, taking off from Portland International Jetport PWM and landing at Washington Dulles International Airport IAD.
How long is the UA4478 flight from Portland to Washington?
The average flight time from Portland to Washington is 1 hour and 23 minutes. The flight distance is 793 km / 493 miles and the average flight speed is 574 km/h / 357 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA4478 Portland to Washington?
The Airportia On-Time Performance Rating for United Airlines Flight UA4478 is 5/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest UA4478 flight?
The latest flight took off on Wednesday, April 29th, 2026 with the flight status being Landed on 11:36.
How else can the flight UA4478 be referenced as?
This United Airlines flight can also be referenced as UAL4478, UA 4478, UAL 4478.
How often is flight UA4478 delayed?
On average, 10% of all UA4478 flights are delayed. The average delay is 4 minutes.
Can I get compensation for my delayed or cancelled UA4478 flight or baggage issues?
If your UA4478 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 UA4478 Flight Tracker above for more details.
Flight UA4478 is code-shared by 2 airlines using the flight numbers AV2094, CM1429
Other flights departing from Portland PWM: DL5800, UA2684, UA4477, DL5804
Other flights arriving at Washington IAD: UA2746, UA4588, UA4014, UA4888
All flights connecting Portland PWM to Washington IAD.