United Airlines UA521 Flight Status Today

Domestic flight United Airlines UA521 takes off from Houston (IAH) United States to Boston (BOS) United States. It's operated by United Airlines. The plane leaves George Bush Intercontinental Airport at 15:57 29 April 2026 America/Chicago. The flight is expected to land at Logan International Airport at 17:25 29 April 2026 America/New_York. The flight will last about 2 hours 28 minutes.

Current status of UA521 is Scheduled On time Estimated Depart in 7 hours, 5 minutes

UA521 - UAL521 United Airlines (UA)
IAH Houston United States
Flight IAH to BOS
BOS Boston United States
Scheduled On time Estimated Depart in 7 hours, 5 minutes
Departure George Bush Intercontinental Airport
IATA: IAHICAO: KIAH
Scheduled 15:57 29 April 2026
Estimated 15:57 29 April 2026
N T19
Arrival Logan International Airport
IATA: BOSICAO: KBOS
Scheduled 17:25 29 April 2026
Estimated 17:25 29 April 2026
C 40
UA521 Detail
  • Type: Domestic Flight
  • Code Shares: NZ 6337
  • Flight Duration: 2 hours 28 minutes
  • Flight Distance: 2569 kms / 1596 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 737-700 Passenger (Scimitar Winglets)
  • Callsign: F-KIDA2
  • Departure Timezone: America/Chicago
  • Arrival Timezone: America/New_York
  • Current Time in Houston: Wednesday 2026-04-29 08:52 AM
  • Current Time in Boston: Wednesday 2026-04-29 09:52 AM

United Airlines UA521 Flight Statistics

United Airlines
United Airlines
FLIGHT NO UA521
AIRPLANE Boeing 737-700 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
Mon 27 Apr
Scheduled On time
Houston (IAH) 2026-04-27T18:42
Boston (BOS) 2026-04-27T23:40
Sun 26 Apr
Scheduled On time
Houston (IAH) 2026-04-26T18:42
Boston (BOS) 2026-04-26T23:40
Sat 25 Apr
Departed Delayed by 1h 17m
Houston (IAH) 2026-04-25T15:57
Boston (BOS) 2026-04-25T17:25
2026-04-25T17:31
Fri 24 Apr
Scheduled On time
Houston (IAH) 2026-04-24T18:42
Boston (BOS) 2026-04-24T23:40
Thu 23 Apr
Departed On time
Houston (IAH) 2026-04-23T15:57
Boston (BOS) 2026-04-23T17:25
2026-04-23T15:52
Sat 18 Apr
Scheduled On time
Houston (IAH) 2026-04-18T15:57
Boston (BOS) 2026-04-18T17:25
Thu 16 Apr
Departed On time
Houston (IAH) 2026-04-16T18:42
Boston (BOS) 2026-04-16T23:40
2026-04-16T18:46
Tue 14 Apr
Scheduled On time
Houston (IAH) 2026-04-14T15:57
Boston (BOS) 2026-04-14T17:25
Mon 13 Apr
Scheduled On time
Houston (IAH) 2026-04-13T16:00
Boston (BOS) 2026-04-13T17:25
Sun 12 Apr
Scheduled On time
Houston (IAH) 2026-04-12T15:57
Boston (BOS) 2026-04-12T17:25

Flight routes similar to United Airlines UA521

Airline Flight no Departure Arrival
United Airlines UA2136
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11:55 		3 hours 54 minutes
16:49
United Airlines UA592
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United Airlines UA1977
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07:25 		3 hours 51 minutes
12:16
Air New Zealand NZ6390
Air New Zealand 		29/04/2026
11:55 		3 hours 57 minutes
16:52
Air New Zealand NZ6394
Air New Zealand 		29/04/2026
07:25 		3 hours 56 minutes
12:16
TAP Portugal TP4294
TAP Portugal 		29/04/2026
13:17 		3 hours 49 minutes
18:06
Air New Zealand NZ6391
Air New Zealand 		29/04/2026
16:52 		3 hours 50 minutes
21:46
Air New Zealand NZ6393
Air New Zealand 		29/04/2026
18:42 		3 hours 52 minutes
23:40

United Airlines Flight UA521 FAQs

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

On average, nonstop flight takes 2 hour(s) 28 minutes, with the flight distance of 2569 km (1596 miles).

What is the current status of United Airlines UA521 flight?

The current status of flight United Airlines UA521 is Scheduled On time.

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

All United Airlines UA521 flights are operated using Boeing 737-700 Passenger (Scimitar Winglets) aircraft.

When does the flight United Airlines UA521 arrive?

Flight United Airlines UA521 arrives at 17:25.

Which terminal the flight United Airlines UA521 is arriving at?

Flight United Airlines UA521 arrives in Logan International Airport at Terminal C.

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 .