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UA3921 Flight Status United Airlines: Boston to New York (UAL3921)

UA 3921 Boston to New York Flight Status

United Airlines Flight UA3921 from Boston Logan International Airport BOS to New York Newark Liberty International Airport EWR is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on January 26th, 2026.
Check the table below for UA3921's most recent flight history:

UA 3921 Flight Status & Schedule

Date Departure Arrival Status
Jan 26 19:32 17:49
Unknown
 Track >
Dec 30 01:20 02:04
Delayed
 Track >
< All BOS Departures All EWR Arrivals >

United Airlines UA 3921 Boston to New York Flight Information

United Airlines Flight UA3921 connects Boston, United States to New York, United States, taking off from Boston Logan International Airport BOS and landing at New York Newark Liberty International Airport EWR.

How long is the UA3921 flight from Boston to New York?

The average flight time from Boston to New York is 44 minutes. The flight distance is 322 km / 200 miles and the average flight speed is 342 km/h / 212 mph.

What is the On-Time Performance (OTP) of United Airlines Flight UA3921 Boston to New York?

The Airportia On-Time Performance Rating for United Airlines Flight UA3921 is 4.4/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight UA3921 arriving at?

Flight UA3921 arrives at New York Newark Liberty International Airport (EWR) Terminal C.

When was the latest UA3921 flight?

The latest flight took off on Monday, January 26th, 2026 with the flight status being Unknown on 17:49.

How else can the flight UA3921 be referenced as?

This United Airlines flight can also be referenced as UAL3921, UA 3921, UAL 3921.

How often is flight UA3921 delayed?

On average, 50% of all UA3921 flights are delayed. The average delay is 73 minutes.

Can I get compensation for my delayed or cancelled UA3921 flight or baggage issues?

If your UA3921 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.

See our UA3921 Flight Tracker above for more details.

UA3921 and Boston BOS to New York EWR Flights

Other flights departing from Boston BOS: B68595, AA1087, DL9964, GB188

Other flights arriving at New York EWR: UA1878, UA3403, UA1164, UA3893

All flights connecting Boston BOS to New York EWR.

UA3921 United Airlines Flight: Boston to New York Route Map

UA3921 United Airlines Flight Map: Boston to New York
Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
New Flights: W67638 MS6113 J25156 A24159 RR8063 G4306 AD4248 WS9444 CP638 N9134
See Also: Flight Tracker Airports Airlines News Flights Monitor Delay Compensation
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.