Informational Guide to Boston Logan Airport (BOS) - NON OFFICIAL

UA721 United Airlines - Flight Status

Codeshare Flights
The flight LH7451 from Lufthansa (LH) is a codeshare flight operated by United Airlines (UA) under the flight number UA721. Check this page for details about flight UA721.

Below, you can find details about United Airlines flight UA721, which currently operates between the airports of Boston - Boston Logan International Airport (Airport Code BOS) and Dulles - Washington Dulles International Airport (Airport Code IAD).
This flight data pertains specifically to the flight's details for Wednesday, April 30, 2025.

UA721 On Time performance:
70
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

UA721 United Airlines to Dulles

Scheduled - On-time
Flight Status for Wednesday April 30, 2025
This flight was also scheduled for Yesterday (April 29, 2025). See it here
This flight is also scheduled for Tomorrow (May 01, 2025). See it here

Airline information

United Airlines
United Airlines
Equipment: Boeing 737-900 (winglets) Passenger/BBJ3

Departure

Boston (BOS)
April 30, 2025
Boston Logan International Airport
Estimated Departure Time:
02:48 pm
Terminal:
B
Gate:
B27
Scheduled Departure Time: 02:48 pm

Arrival

Dulles (IAD)
April 30, 2025
Washington Dulles International Airport
Estimated Arrival Time:
04:29 pm
Terminal:
-
Gate:
D10
Scheduled Arrival Time: 04:29 pm
Disclaimer
The information displayed on this website is gathered from third-party providers with a wide reputation on the sector, which in turn obtain the information from the airlines. This data is provided only for informative purposes. www.boston-airport.com assumes no responsibility for loss or damage as a result of relying on information posted here. Please contact your airline to verify flight status.

Codeshare Flights

This flight is shared with other airlines, this means that these other flights are the same:

- LH7451 - Lufthansa

- SN8899 - Brussels Airlines

Additional Information

Which is the frequency of flight UA721?
The flight UA721 is scheduled to flight on daily basis.

Which is the distance of flight UA721?
The distance between the two airports is 411 miles.

Which is the flight time of flight UA721?
The scheduled flight time gate to gate is: 01:41 hours.
The real flight time gate to gate on average is: 01:48 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 Boston and Dulles:
United Airlines - Flight Number: UA1734. (On Time performance: 92 - Average Delay: 4 minutes)

Punctuality and delays

We have gathered data from recent months and present below an analysis of how timely the flights have been.

In terms of On-Time Performance, by analyzing the flight data from the last three months, spanning from February 13, 2025 to April 26, 2025, we have obtained these figures.
Total number of flights: 73
On Time: 51 ( 70 % )
Moderate Delay: 8 ( 11 % )
Significant Delay: 9 ( 12 % )
Major Delay: 4 ( 5 % )
Canceled: 1 ( 1 % )
Diverted: 0 ( 0 % )

Average Delay: 16 minutes.
Delays analyzed by Weekday: We have gathered available data from last six months, spanning from December 03, 2024 to April 26, 2025. Next, you can observe the results broken down by day of the week: number of flights analyzed, on-time performance per day, and average delay per day.

Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from May 23, 2024 to March 31, 2025. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.

Last Past Flights UA721

Date
Departure
Arrival
Duration
Aircraft
Status
Tuesday
29 April
02:39 pm
Boston (BOS)
04:14 pm
Dulles (IAD)
01h 35min
Boeing 737-900
Boeing 737-900
Landed - On-time
Monday
28 April
02:46 pm
Boston (BOS)
04:23 pm
Dulles (IAD)
01h 37min
Boeing 737-900
Boeing 737-900
Landed - On-time
Sunday
27 April
02:48 pm
Boston (BOS)
04:45 pm
Dulles (IAD)
01h 57min
Boeing 737-900
Boeing 737-900
Landed - Delayed
Saturday
26 April
02:46 pm
Boston (BOS)
05:03 pm
Dulles (IAD)
02h 17min
Boeing 737-900
Boeing 737-900
Landed - Delayed
Friday
25 April
03:00 pm
Boston (BOS)
04:27 pm
Dulles (IAD)
01h 27min
Boeing 737-900
Boeing 737-900
Landed - On-time
Thursday
24 April
02:52 pm
Boston (BOS)
04:38 pm
Dulles (IAD)
01h 46min
Boeing 737-900
Boeing 737-900
Landed - On-time
Wednesday
23 April
02:45 pm
Boston (BOS)
04:32 pm
Dulles (IAD)
01h 47min
Boeing 737-900
Boeing 737-900
Landed - On-time
Tuesday
22 April
02:45 pm
Boston (BOS)
04:57 pm
Dulles (IAD)
02h 12min
Boeing 737-900
Boeing 737-900
Landed - Delayed
Monday
21 April
02:49 pm
Boston (BOS)
04:18 pm
Dulles (IAD)
01h 29min
Boeing 737-900
Boeing 737-900
Landed - On-time
Sunday
20 April
02:49 pm
Boston (BOS)
04:30 pm
Dulles (IAD)
01h 41min
Boeing 737-900
Boeing 737-900
Landed - On-time