Flight UA 721: Boston → Washington Dulles

United Airlines4 October 2026DepartedUpdated 25 min ago, official airport data

All flights Boston → Washington Dulles

Departure

Boston BOS

14:15

Scheduled

Terminal: B
Gate: B29

In flight

An estimate from the times on the boards, not the aircraft's position.

Flight time: 1 h 41 min

Arrival

Washington Dulles IAD

15:54

Expected15:56 scheduled2 min early

Data from the official airport boards. Times are local to each airport.

Follow flight UA 721, 4 October 2026

We will message you when the status, time, terminal, check-in desk or gate changes on the airport board, exactly as the board shows it. Every message has a Stop button or link.

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Flight time: 1 h 41 min
Distance: ≈ 663 km
Days of the week

Punctuality of flight UA 721

The last 60 days of boards hold fewer than 5 finished flights with a known departure time: too few to count punctuality.

Flight UA 721: schedule and upcoming dates

Days it flew in the last 60 days
Usual departure time: 14:15
Usual arrival time: 15:56

Dates already on the boards

Sun 4 OctDeparture 14:15, Arrival 15:56Departed
Mon 5 OctArrival 15:56Scheduled

Follow flight UA 721, 5 October 2026

We will message you when the status, time, terminal, check-in desk or gate changes on the airport board, exactly as the board shows it. Every message has a Stop button or link.

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Route of flight UA 721

Departure airport: Boston (BOS). Arrival airport: Washington Dulles (IAD). Scheduled flight time: about 1 h 41 min. Distance between the airports: about 663 km in a straight line.

Questions about flight UA 721

Is flight UA 721 on time today?

For 4 October 2026 the airport board shows flight UA 721 as “Departed”. Departure: Boston, 14:15. Arrival: Washington Dulles, 15:54.

Which terminal and gate does flight UA 721 use?

Boston (BOS): Terminal B, Gate B29. Gates are announced shortly before boarding and can change: check the screens at the airport.

How often is flight UA 721 delayed?

The last 60 days of boards hold fewer than 5 finished flights with a known departure time: too few to count punctuality.

How long does flight UA 721 take?

About 1 h 41 min by the schedule. The airports are 663 km apart.

On which days does flight UA 721 operate?

In the last 60 days it was on the boards on: Monday, Sunday.

How can I get notified when flight UA 721 changes?

Use the notifications block at the top of this page: Telegram or e-mail. We will message you when the status, time, terminal, check-in desk or gate changes on the airport board, exactly as the board shows it. Every message has a Stop button or link.

Flight UA 721, 4 October 2026