United Airlines UA521 Flight Status Today

Domestic flight United Airlines UA521 takes off from Boston (BOS) United States to Newark (EWR) United States. It's operated by United Airlines. The plane leaves Logan International Airport at 18:17 12 January 2026 America/New_York. The flight is expected to land at Newark Liberty International Airport at 19:48 12 January 2026 America/New_York. The flight will last about 1 hours 31 minutes.

Current status of UA521 is Departed Delayed by 2h 16m Estimated Arrival in 51 minutes

UA521 - UAL521 United Airlines (UA)
BOS Boston United States
Flight BOS to EWR
EWR Newark United States
Departed Delayed by 2h 16m Estimated Arrival in 51 minutes
Departure Logan International Airport
IATA: BOSICAO: KBOS
Scheduled 18:17 12 January 2026
Actual 20:52 12 January 2026
B B26
Arrival Newark Liberty International Airport
IATA: EWRICAO: KEWR
Scheduled 19:48 12 January 2026
Estimated 22:04 12 January 2026
A 14
UA521 Detail
  • Type: Domestic Flight
  • Code Shares: TP 8515
  • Flight Duration: 1 hours 31 minutes
  • Flight Distance: 323 kms / 201 miles
Airline
  • United Airlines
  • IATA: UA
  • ICAO: UAL
  • Operating Days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
Passenger Services
  • Service type: Normal passenger
  • Seats: 167
  • Freight capacity: 17.1 tons
  • Passenger classes: First Class, Economy, Business Class, Shuttle
More Detail
  • Aircraft: Boeing 737-900 Passenger (Scimitar Winglets)
  • Callsign: F-KIDA2
  • Departure Timezone: America/New_York
  • Arrival Timezone: America/New_York
  • Current Time in Boston: Monday 2026-01-12 21:13 PM
  • Current Time in Newark: Monday 2026-01-12 21:13 PM

United Airlines UA521 Flight Statistics

United Airlines
United Airlines
FLIGHT NO UA521
AIRPLANE Boeing 737-900 Passenger (Scimitar Winglets)
ON TIME 9
DELAYED 5
CANCELLED 0
ON TIME 25
DELAYED 5
CANCELLED 0
ON TIME 49
DELAYED 10
CANCELLED 0
ON TIME 65
DELAYED 12
CANCELLED 0
Last 14 days flight data
14 30 60 90
On Time Rate

United Airlines UA521 Flight Schedule and Histories

Time Departure Arrival Actual departure Actual arrival
Thu 08 Jan
Scheduled On time
Boston (BOS) 2026-01-08T18:17
Newark (EWR) 2026-01-08T19:48
Fri 26 Dec
Cancelled
Boston (BOS) 2025-12-26T19:15
Newark (EWR) 2025-12-26T22:32
Thu 25 Dec
Scheduled On time
Boston (BOS) 2025-12-25T19:15
Newark (EWR) 2025-12-25T22:32
Sun 23 Nov
Scheduled On time
Boston (BOS) 2025-11-23T18:24
Newark (EWR) 2025-11-23T19:59
Thu 20 Nov
Scheduled On time
Boston (BOS) 2025-11-20T18:24
Newark (EWR) 2025-11-20T19:59
Wed 19 Nov
Scheduled On time
Boston (BOS) 2025-11-19T18:25
Newark (EWR) 2025-11-19T19:59
Wed 12 Nov
Cancelled
Boston (BOS) 2025-11-12T18:25
Newark (EWR) 2025-11-12T19:59
Wed 05 Nov
Scheduled On time
Boston (BOS) 2025-11-05T18:25
Newark (EWR) 2025-11-05T19:59
Tue 04 Nov
Scheduled On time
Boston (BOS) 2025-11-04T18:24
Newark (EWR) 2025-11-04T19:59
Fri 31 Oct
Scheduled Delayed by 1h 35m
Boston (BOS) 2025-10-31T18:25
Newark (EWR) 2025-10-31T20:00

Flight routes similar to United Airlines UA521

Airline Flight no Departure Arrival
United Airlines UA1268
United Airlines 		12/01/2026
13:30 		1 hours 11 minutes
14:59
United Airlines UA2394
United Airlines 		12/01/2026
10:30 		1 hours 2 minutes
11:59
United Airlines UA558
United Airlines 		12/01/2026
16:15 		1 hours 27 minutes
17:42
Delta DL5829
Delta 		12/01/2026
13:25 		1 hours 35 minutes
15:00
LATAM Airlines LA6319
LATAM Airlines 		12/01/2026
13:25 		1 hours 35 minutes
15:00
SAS SK3107
SAS 		12/01/2026
18:05 		1 hours 39 minutes
19:44
SAS SK3769
SAS 		12/01/2026
06:15 		1 hours 38 minutes
07:53
Korean Air KE3305
Korean Air 		12/01/2026
13:25 		1 hours 23 minutes
15:00

United Airlines Flight UA521 FAQs

What is the scheduled flight duration for United Airlines UA521 flight?

On average, nonstop flight takes 1 hour(s) 31 minutes, with the flight distance of 323 km (201 miles).

What is the current status of United Airlines UA521 flight?

The current status of flight United Airlines UA521 is Departed Delayed by 2h 16m.

What type of aircraft is used for the United Airlines UA521 flight?

All United Airlines UA521 flights are operated using Boeing 737-900 Passenger (Scimitar Winglets) aircraft.

When does the flight United Airlines UA521 arrive?

Flight United Airlines UA521 arrives at 19:48.

Which terminal the flight United Airlines UA521 is arriving at?

Flight United Airlines UA521 arrives in Newark Liberty International Airport at Terminal A.

How many United Airlines UA521 flights are operated a week?

7 flights per week. The Flight United Airlines UA521 is operated on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday .