UA4004 United Airlines - Flight Status
Below, you can find details about United Airlines flight UA4004, which currently operates between the airports of Dulles - Washington Dulles International Airport (Airport Code IAD) and New York - New York LaGuardia Airport (Airport Code LGA).
This flight data pertains specifically to the flight's details for Thursday, August 20, 2026.
Table of contents:
Flight Status Codeshare Flights Additional Information Alternative Flights Punctuality and delays Last Past Flights UA4004
Flight Status Codeshare Flights Additional Information Alternative Flights Punctuality and delays Last Past Flights UA4004
UA4004 On Time performance:
60
We have calculated the percentage of flights that arrived within 15 minutes of their scheduled time, or earlier, based on real flight data from the last 3 months. More about punctuality and delays Flight Status
UA4004 United Airlines from Dulles
Scheduled - On-time
Flight Status for Thursday August 20, 2026
This flight was also scheduled for Yesterday (August 19, 2026). See it here
This flight is also scheduled for Tomorrow (August 21, 2026). See it here
Scheduled - On-time
Flight Status for Thursday August 20, 2026
Airline information
United Airlines
Equipment: Embraer 175 (Enhanced Winglets)
Departure
Dulles (IAD)
August 20, 2026
Washington Dulles International Airport
Estimated Departure Time:
12:40 pm
Terminal:
-
Gate:
A1C
Scheduled Departure Time: 12:40 pm
Arrival
New York (LGA)
August 20, 2026
New York LaGuardia Airport
Estimated Arrival Time:
01:49 pm
Terminal:
B
Gate:
44
Scheduled Arrival Time: 02:09 pm
Baggage: 7
Disclaimer
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Codeshare Flights
This flight is shared with other airlines, this means that these other flights are the same:
- AV2136 - Avianca
- NH7554 - ANA All Nippon Airways
Additional Information
Which is the frequency of flight UA4004?
The flight UA4004 is scheduled to flight on daily basis.
Which is the distance of flight UA4004?
The distance between the two airports is 228 miles.
Which is the flight time of flight UA4004?
The scheduled flight time gate to gate is: 01:29 hours.
The real flight time gate to gate on average is: 01:25 hours.
Are the departure airport and arrival airport at the same Time Zone?
Yes, both airports are in the same timezone.
The flight UA4004 is scheduled to flight on daily basis.
Which is the distance of flight UA4004?
The distance between the two airports is 228 miles.
Which is the flight time of flight UA4004?
The scheduled flight time gate to gate is: 01:29 hours.
The real flight time gate to gate on average is: 01:25 hours.
Are the departure airport and arrival airport at the same Time Zone?
Yes, both airports are in the same timezone.
Alternative Flights
The following airline serve the same route between Dulles and New York:
United Airlines - Flight Number: UA3999. (On Time performance: 60 - Average Delay: 24 minutes)
United Airlines - Flight Number: UA3999. (On Time performance: 60 - Average Delay: 24 minutes)
Punctuality and delays
We have gathered data from recent months and present below an analysis of how timely the flights have been.
Delays analyzed by Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Month: It is not possible to calculate the On-Time Performance for this flight accurately by month due to insufficient or non-representative data, as doing so could lead to misleading conclusions
In terms of On-Time Performance, by analyzing the flight data from the last three months, spanning from August 11, 2026 to August 15, 2026, we have obtained these figures.
Total number of flights: 5
On Time: 3 ( 60 % )
Moderate Delay: 0 ( 0 % )
Significant Delay: 1 ( 20 % )
Major Delay: 1 ( 20 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )
Average Delay: 45 minutes.
Total number of flights: 5
On Time: 3 ( 60 % )
Moderate Delay: 0 ( 0 % )
Significant Delay: 1 ( 20 % )
Major Delay: 1 ( 20 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )
Average Delay: 45 minutes.
Delays analyzed by Month: It is not possible to calculate the On-Time Performance for this flight accurately by month due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Last Past Flights UA4004
Date
Departure
Arrival
Duration
Aircraft
Status
Wednesday
19 August
19 August
12:35 pm
Dulles (IAD)
Dulles (IAD)
01:48 pm
New York (LGA)
New York (LGA)
01h 13min
Embraer 175 (E
Embraer 175 (E
Landed - On-time
Tuesday
18 August
18 August
12:33 pm
Dulles (IAD)
Dulles (IAD)
01:48 pm
New York (LGA)
New York (LGA)
01h 15min
Embraer 175 (E
Embraer 175 (E
Landed - On-time
Monday
17 August
17 August
01:49 pm
Dulles (IAD)
Dulles (IAD)
03:16 pm
New York (LGA)
New York (LGA)
01h 27min
Embraer 175 (E
Embraer 175 (E
Landed - Delayed
Sunday
16 August
16 August
12:44 pm
Dulles (IAD)
Dulles (IAD)
02:12 pm
New York (LGA)
New York (LGA)
01h 28min
Embraer 175 (E
Embraer 175 (E
Landed - On-time
Saturday
15 August
15 August
12:44 pm
Dulles (IAD)
Dulles (IAD)
01:59 pm
New York (LGA)
New York (LGA)
01h 15min
Embraer 175 (E
Embraer 175 (E
Landed - On-time
Friday
14 August
14 August
12:39 pm
Dulles (IAD)
Dulles (IAD)
02:05 pm
New York (LGA)
New York (LGA)
01h 26min
Embraer 175 (E
Embraer 175 (E
Landed - On-time
Thursday
13 August
13 August
01:03 pm
Dulles (IAD)
Dulles (IAD)
02:39 pm
New York (LGA)
New York (LGA)
01h 36min
Embraer 175 (E
Embraer 175 (E
Landed - Delayed
Wednesday
12 August
12 August
12:40 pm
Dulles (IAD)
Dulles (IAD)
02:04 pm
New York (LGA)
New York (LGA)
01h 24min
Embraer 175 (E
Embraer 175 (E
Landed - On-time
Tuesday
11 August
11 August
04:06 pm
Dulles (IAD)
Dulles (IAD)
05:24 pm
New York (LGA)
New York (LGA)
01h 18min
Embraer 175 (E
Embraer 175 (E
Landed - Delayed