United Airlines UA1521 Flight Status

Current status of UA1521 is Arrived On time

UA1521 - UAL1521 United Airlines (UA)
IAH Houston United States
Flight IAH to SFO
SFO San Francisco United States
Arrived On time
Departure George Bush Intercontinental Airport
IATA: IAHICAO: KIAH
Scheduled 10:10 08 December 2025
Actual 10:16 08 December 2025
None A21
Arrival San Francisco International Airport
IATA: SFOICAO: KSFO
Scheduled 15:02 08 December 2025
Actual 15:03 08 December 2025
None C29
UA1521 Detail
  • Type: Domestic Flight
  • Flight Duration: 2 hours 47 minutes
  • Flight Distance: 2633 kms / 1636 miles
Airline
  • United Airlines
  • IATA: UA
  • ICAO: UAL
  • Operating Days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
Passenger Services
  • Service type: Normal passenger
  • Seats: 128
  • Freight capacity: 6.7 tons
  • Passenger classes: First Class, Economy, Business Class, Shuttle
More Detail
  • Aircraft: Boeing 737-900 Passenger (Scimitar Winglets)
  • Callsign: F-KMBS3
  • Departure Timezone: America/Chicago
  • Arrival Timezone: America/Los_Angeles
  • Current Time in Houston: Monday 2025-12-08 14:52 PM
  • Current Time in San Francisco: Monday 2025-12-08 12:52 PM

Domestic flight United Airlines UA1521 takes off from Houston (IAH) United States to San Francisco (SFO) United States. It's operated by United Airlines. The plane leaves George Bush Intercontinental Airport at 10:10 08 December 2025 America/Chicago. The flight is expected to land at San Francisco International Airport at 15:02 08 December 2025 America/Los_Angeles. The flight will last about 2 hours 47 minutes.

United Airlines UA1521 Flight Statistics

United Airlines
United Airlines
FLIGHT NO UA1521
AIRPLANE Boeing 737-900 Passenger (Scimitar Winglets)
ON TIME 11
DELAYED 3
CANCELLED 0
ON TIME 24
DELAYED 6
CANCELLED 0
ON TIME 51
DELAYED 9
CANCELLED 0
ON TIME 71
DELAYED 9
CANCELLED 3
Last 14 days flight data
14 30 60 90
On Time Rate

United Airlines UA1521 Flight Schedule and Histories

Time Departure Arrival Actual departure Actual arrival
Mon 24 Nov
Scheduled On time
Houston (IAH) 2025-11-24T18:50
San Francisco (SFO) 2025-11-24T21:13
Tue 18 Nov
Scheduled On time
Houston (IAH) 2025-11-18T07:25
San Francisco (SFO) 2025-11-18T08:54
Sun 16 Nov
Arrived On time
Houston (IAH) 2025-11-16T18:50
San Francisco (SFO) 2025-11-16T21:13
2025-11-16T18:52
2025-11-16T21:07
Fri 14 Nov
Scheduled On time
Houston (IAH) 2025-11-14T18:50
San Francisco (SFO) 2025-11-14T21:13
Thu 06 Nov
Arrived On time
Houston (IAH) 2025-11-06T18:50
San Francisco (SFO) 2025-11-06T21:13
2025-11-06T18:48
2025-11-06T21:18
Wed 29 Oct
Departed On time
Houston (IAH) 2025-10-29T10:20
San Francisco (SFO) 2025-10-29T15:13
2025-10-29T10:14
Wed 22 Oct
Departed On time
Houston (IAH) 2025-10-22T10:07
San Francisco (SFO) 2025-10-22T15:04
2025-10-22T10:04
Fri 10 Oct
Departed On time
Houston (IAH) 2025-10-10T10:07
San Francisco (SFO) 2025-10-10T15:04
2025-10-10T10:07
Tue 07 Oct
Departed On time
Houston (IAH) 2025-10-07T10:07
San Francisco (SFO) 2025-10-07T15:04
2025-10-07T10:00
Tue 30 Sep
Scheduled On time
Houston (IAH) 2025-09-30T10:07
San Francisco (SFO) 2025-09-30T15:04

Similar flight route from Houston (IAH) to San Francisco (SFO)

Airline Flight no Departure Arrival
United Airlines UA589
United Airlines 		08/12/2025
14:23 		4 hours 4 minutes
16:47
United Airlines UA234
United Airlines 		08/12/2025
17:02 		4 hours 23 minutes
19:25
Air New Zealand NZ9206
Air New Zealand 		08/12/2025
17:02 		4 hours 23 minutes
19:25
Air New Zealand NZ9208
Air New Zealand 		08/12/2025
20:35 		4 hours 24 minutes
22:59
Air New Zealand NZ9209
Air New Zealand 		08/12/2025
18:50 		4 hours 23 minutes
21:13
United Airlines UA2358
United Airlines 		08/12/2025
09:51 		4 hours 19 minutes
12:10
Air New Zealand NZ9211
Air New Zealand 		08/12/2025
15:23 		4 hours 24 minutes
17:47
Emirates EK6155
Emirates 		08/12/2025
18:50 		4 hours 23 minutes
21:13

Frequently asked questions, answered

What is the scheduled flight duration for United Airlines UA1521 flight?

On average, nonstop flight takes 2 hour(s) 47 minutes, with the flight distance of 2633 km (1636 miles).

What is the current status of United Airlines UA1521 flight?

The current status of flight United Airlines UA1521 is Arrived On time.

What type of aircraft is used for the United Airlines UA1521 flight?

All United Airlines UA1521 flights are operated using Boeing 737-900 Passenger (Scimitar Winglets) aircraft.

How many United Airlines UA1521 flights are operated a week?

7 flights per week. The Flight United Airlines UA1521 is operated on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday .