United Airlines UA4577 Flight Status
According to Trip.com real-time data, the UA4577 flight operated by United Airlines on Nov 7, 2026 is scheduled to fly from Philadelphia (PHL) to Washington D.C. (IAD). The flight is expected to depart at 19:40 and land at 20:14 .
Fri, Nov 6
Sat, Nov 7
Sun, Nov 8
Access more flight status info on the Trip.com app
Show more
Delayed
Your flight is about 2h 35m late
4h 19m
IAD
1h 1m
Check-in Counter
--
Boarding Gate
D7
Arrival Gate
1A
Baggage
C
Need a flight from Philadelphia to Washington D.C.?
United Airlines
Search flights Access more flight status info on the Trip.com app
Show more
Scheduled
Your flight will depart on time.
1h 13m
Check-in Counter
--
Boarding Gate
D7
Arrival Gate
C26
Baggage
--
Show more
Need a flight from Philadelphia to Washington D.C.?
United Airlines From MYR 735
Search flights Access more flight status info on the Trip.com app
Show more
Scheduled
Your flight will depart on time.
4h 19m
IAD
1h 20m
Check-in Counter
--
Boarding Gate
D7
Arrival Gate
--
Baggage
--
Show more
Need a flight from Philadelphia to Washington D.C.?
United Airlines
Search flights Information provided by VariFlight For real-time updates, please check airport displays or contact your airline.
Track the Previous Flight Status: Scheduled
UA4562
|
Washington D.C. (WAS)
Philadelphia (PHL)
Philadelphia (PHL)
Scheduled: 18:51
fake text
Track incoming flight status with our app
Show more
UA4577 Aircraft Details
According to Trip.com real-time data, the UA4577 flight flying from Philadelphia to Washington D.C. on 11/7/2026 is operated by the aircraft model Bombardier CRJ-550. This aircraft has been in service for 20y, 7m. The aircraft is equipped with 50 seats.
Bombardier CRJ-550
Punctuality (Departure)
83
%
Punctuality (Arrival)
92
%
Early on average
21 minutes
Age
20y, 7m
Seats
50
Flight Distance
--
Economy
First
Premium Economy
In-Flight Services
None
Inflight entertainment is available
Unknown
USB port
Seat Information
79 cm
Legroom
44 cm
Seat width
100°
Reclining Angle
2-2
Seat layout example
In-Flight Services
Snacks
Inflight entertainment is available
Unknown
USB port and power outlet
Seat Information
94 cm
Legroom
51 cm
Seat width
120°
Reclining Angle
1-2
Seat layout example
In-Flight Services
None
On-demand entertainment
Wi-Fi is available
USB port and power outlet
Seat Information
86 cm
Legroom
44 cm
Seat width
100°
Reclining Angle
--
Seat layout example
See more amenities and seat info in the app
Show more
Flight History for UA4577
Check more records from Trip.com about UA4577 before and after today
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Mon, Nov 2 | Philadelphia (PHL) | Washington D.C. (IAD) | CRJ7 | 19:44 | 20:16 | Arrived |
| Tue, Nov 3 | Philadelphia (PHL) | Washington D.C. (IAD) | CRJ7 | 19:46 | 20:15 | Arrived |
| Wed, Nov 4 | Philadelphia (PHL) | Washington D.C. (IAD) | CRJ7 | 19:44 | 20:16 | Arrived |
| Thu, Nov 5 | Philadelphia (PHL) | Portland (PWM) | CRJ7 | 19:51 | 02:23 | Arrived |
| Fri, Nov 6 | Philadelphia (PHL) | Portland (PWM) | CRJ7 | 22:15 | 01:36 | Delayed |
| Sat, Nov 7 | Philadelphia (PHL) | Washington D.C. (IAD) | CRJ7 | 19:40 | 20:14 | Scheduled |
| Sun, Nov 8 | Philadelphia (PHL) | Portland (PWM) | CRJ7 | 19:40 | 23:59 | Scheduled |
text.text............fake.row.text............text.........fake row
...text
Check upcoming flights with our app
Show more
UA4577 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of UA4577 is 83% (Late on average 16 minutes), and the on-time arrival rate is 92% (Early on average 21 minutes).
On-Time Departures
Punctuality
83
%
Late on average
16 minutes
Early
0
%
On time
83
%
30 mins late
8
%
60 mins late
8
%
90 mins late
0
%
Canceled
0
%
On-Time Arrivals
Punctuality
92
%
Early on average
21 minutes
Early
92
%
On time
0
%
30 mins late
8
%
60 mins late
0
%
90 mins late
0
%
Canceled
0
%
Need a flight from Philadelphia to Washington D.C.?
- From Philadelphia
- To Washington D.C.
- Return flights
More Cheap Flights
More Cheap Flights
More Cheap Flights
Recommended hotels in Washington D.C.
Hotels near Dulles International Airport
8.9/10
Reviews
Washington Dulles Airport Marriott
0.69 km from the airport
MYR 720
8.6/10
Reviews
The Westin Washington Dulles Airport
1.71 km from the airport
MYR 680
8.2/10
Reviews
Candlewood Suites WASHINGTON-DULLES HERNDON by IHG
1.96 km from the airport
MYR 529 MYR 522
8.7/10
Reviews
Hyatt Regency Dulles
2.26 km from the airport
MYR 640
Frequently Asked Questions
What is the current status of flight ua4577?
Flight ua4577 has not departed yet and is currently on schedule. Scheduled departure 19:40, arrival 20:53 (updated Nov 7, 2026).Is flight ua4577 on time today?
Flight ua4577 has not departed yet and is currently on schedule. Scheduled departure is 19:40, with arrival at 20:53. Recheck gate and timing before you head to the airport.Has flight ua4577 departed yet? What is the departure time?
Flight ua4577 is scheduled to depart at 19:40. The latest actual or estimated departure time is 19:40, and the current status is Scheduled (updated Nov 7, 2026).When is flight ua4577 scheduled to arrive?
Flight ua4577 is scheduled to arrive at 20:53. The latest estimated or actual arrival time is 20:14. Status is Scheduled as of Nov 7, 2026.What is the gate information for flight ua4577?
For flight ua4577, the departure terminal is D and the boarding gate is D7. Gate assignments can change at short notice—confirm on airport screens before heading to security.What route does flight ua4577 fly?
Flight ua4577 is operated by United Airlines from Philadelphia (PHL) to Washington D.C. (IAD). Typical flight time is about 1 hour13 minutes; operating days may include Saturday.How can I check real-time status for flight ua4577?
Track flight ua4577 on this Trip.com status page for live departure, arrival, gate and baggage updates. For push alerts on the go, open the same flight in the Trip.com App and turn on flight notifications.If flight ua4577 is delayed or canceled, what should I do?
If ua4577 is delayed or canceled, first confirm the latest status here (Scheduled, updated Nov 7, 2026). Contact United Airlines or your booking channel for rebooking or refund options, and check Trip.com Manage Booking if you booked on Trip.com.Has flight ua4577 departed from Philadelphia?
Flight ua4577 has not departed from Philadelphia (PHL) yet and is currently on schedule for 19:40.What is the seat configuration for flight ua4577?
Flight ua4577 usually flies a Bombardier CRJ-550 with seat layout 2-2. Layouts can differ by aircraft subtype and cabin product—confirm your seat map in Manage Booking after you purchase.
Washington D.C. Vacation Packages: Cheap Flights, Hotels & Tours
Hotels
Arrival Info: Washington D.C. Weather & Current Time
Cloudy with showers
|
9°C - 22°C
Weather forecast for your arrival day
0 hour time difference
Time on arrival: Philadelphia 20:14
|
Washington D.C. 20:14
Worldwide Coverage
Flights to over 5,000 cities
One-stop Service Guarantee
Price guaranteed upon confirmed payment, booking guaranteed once tickets issued
Secure Payment
Convenient & reliable booking and payment system