United Airlines UA4304 Flight Status
According to Trip.com real-time data, the UA4304 flight operated by United Airlines on Sep 20, 2026 is scheduled to fly from Washington D.C. (IAD) to Knoxville (TYS). The flight is expected to depart at 10:15 PM and land at 11:18 PM .
Sat, Sep 19
Sun, Sep 20
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Scheduled
Your flight will depart on time.
1h 44m
Check-in Counter
AREA 4
Boarding Gate
A6A
Arrival Gate
--
Baggage
3
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Scheduled
Your flight will depart on time.
1h 44m
Check-in Counter
AREA 4
Boarding Gate
--
Arrival Gate
--
Baggage
3
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Information provided by VariFlight For real-time updates, please check airport displays or contact your airline. You can also explore more flights from Washington D.C. to Knoxville or track other flights with our flight status tracker.
Track the Previous Flight Status: Scheduled
UA4259
|
Columbia (CAE) 
Washington D.C. (WAS)
Washington D.C. (WAS)Scheduled: 9:30 PM
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UA4304 Aircraft Details
According to Trip.com real-time data, the UA4304 flight flying from Washington D.C. to Knoxville on 9/20/2026 is operated by the aircraft model Embraer RJ 135/140/145. This aircraft has been in service for 20y, 11m. The aircraft is equipped with 50 seats.
Embraer RJ 135/140/145
Punctuality (Departure)
77%
Punctuality (Arrival)
93%
Early on average
16 minutes
Age
20y, 11m
Seats
50
Flight Distance
--
Economy
Premium Economy
In-Flight Services
Snacks
In-flight entertainment is unavailable
Wi-Fi is unavailable
No power outlets are available
Seat Information
79 cm
Legroom
--
Seat width
100°
Reclining Angle
1-2
Seat layout example
In-Flight Services
None
In-flight entertainment is unavailable
Wi-Fi is unavailable
No power outlets are available
Seat Information
97 cm
More legroom than on 14% of flights
--
Seat width
100°
Reclining Angle
--
Seat layout example
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Flight History for UA4304
Trip.com historical records show that the last UA4304 flight departed on Sat, Sep 19 from IAD at approximately 10:15 PM. This flight is expected to arrrive in TYS at 11:18 PM.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Mon, Sep 14 | Washington D.C. (IAD) | Knoxville (TYS) | E45X | 10:29 PM | 11:35 PM | Arrived |
| Tue, Sep 15 | Washington D.C. (IAD) | Knoxville (TYS) | E45X | 10:48 PM | 11:48 PM | Arrived |
| Wed, Sep 16 | Washington D.C. (IAD) | Knoxville (TYS) | E45X | 10:24 PM | 11:31 PM | Arrived |
| Thu, Sep 17 | Washington D.C. (IAD) | Knoxville (TYS) | E45X | 11:24 PM | 12:23 AM | Arrived |
| Fri, Sep 18 | Washington D.C. (IAD) | Knoxville (TYS) | E45X | 11:20 PM | 12:21 AM | Arrived |
| Sat, Sep 19 | Washington D.C. (IAD) | Knoxville (TYS) | E45X | 10:15 PM | 11:18 PM | Scheduled |
| Sun, Sep 20 | Washington D.C. (IAD) | Knoxville (TYS) | E45X | 10:15 PM | 11:18 PM | Scheduled |
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UA4304 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of UA4304 is 77% (Late on average 22 minutes), and the on-time arrival rate is 93% (Early on average 16 minutes).
On-Time Departures
Punctuality
77%
Late on average 22 minutes
Early
0%
On time
77%
30 mins late
13%
60 mins late
10%
90 mins late
0%
Canceled
0%
On-Time Arrivals
Punctuality
93%
Early on average 16 minutes
Early
83%
On time
10%
30 mins late
7%
60 mins late
0%
90 mins late
0%
Canceled
0%
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Cheap return flights to Washington D.C.
- Thu, Oct 22Knoxville (TYS)Washington D.C. (WAS)
Allegiant AirOne way83% off$179$31 - Thu, Oct 15Knoxville (TYS)Washington D.C. (WAS) Allegiant AirOne way80% off$179$35
- Thu, Oct 1Knoxville (TYS)Washington D.C. (WAS) Allegiant AirOne way73% off$179$48
- Mon, Nov 9Knoxville (TYS)Washington D.C. (WAS)
Delta Air LinesOne way20% off$179$144 - Wed, Sep 23Knoxville (TYS)Washington D.C. (WAS) Allegiant AirOne way13% off$179$156
- Sun, Oct 18Knoxville (TYS)Washington D.C. (WAS) Allegiant AirOne way10% off$179$161
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Frequently Asked Questions
What is the current status of flight ua4304?
Flight ua4304 has not departed yet and is currently on schedule. Scheduled departure 10:15 PM, arrival 11:59 PM (updated Sep 20, 2026).Is flight ua4304 on time today?
Flight ua4304 has not departed yet and is currently on schedule. Scheduled departure is 10:15 PM, with arrival at 11:59 PM. Recheck gate and timing before you head to the airport.Has flight ua4304 departed yet? What is the departure time?
Flight ua4304 is scheduled to depart at 10:15 PM. The latest actual or estimated departure time is 10:15 PM, and the current status is Scheduled (updated Sep 20, 2026).When is flight ua4304 scheduled to arrive?
Flight ua4304 is scheduled to arrive at 11:59 PM. The latest estimated or actual arrival time is 11:18 PM. Status is Scheduled as of Sep 20, 2026.What route does flight ua4304 fly?
Flight ua4304 is operated by United Airlines from Washington D.C. (IAD) to Knoxville (TYS). Typical flight time is about 1 hour44 minutes; operating days may include Sunday.How can I check real-time status for flight ua4304?
Track flight ua4304 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 ua4304 is delayed or canceled, what should I do?
If ua4304 is delayed or canceled, first confirm the latest status here (Scheduled, updated Sep 20, 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 ua4304 departed from Washington D.C.?
Flight ua4304 has not departed from Washington D.C. (IAD) yet and is currently on schedule for 10:15 PM.What is the seat configuration for flight ua4304?
Flight ua4304 usually flies a Embraer RJ 135/140/145 with seat layout 1-2. Layouts can differ by aircraft subtype and cabin product—confirm your seat map in Manage Booking after you purchase.
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Arrival Info: Knoxville Weather & Current Time
Clear
|
20°C - 34°C
Weather forecast for your arrival day
0 hour time difference
Time on arrival: Washington D.C. 23:18| Knoxville 23:18
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