United Airlines UA1521 flight status now

Current status of UA1521 is Scheduled On time Estimated Depart in 5 hours, 26 minutes

UA1521 - UAL1521 United Airlines (UA)
IAH Houston United States
Flight IAH to SFO
SFO San Francisco United States
Scheduled On time Estimated Depart in 5 hours, 26 minutes
Departure George Bush Intercontinental Airport
IATA: IAHICAO: KIAH
Scheduled 07:25 18 November 2025
Estimated 07:25 18 November 2025
1 B20
Arrival San Francisco International Airport
IATA: SFOICAO: KSFO
Scheduled 08:54 18 November 2025
Estimated 08:54 18 November 2025
1 E6
UA1521 Detail
  • Type: Domestic Flight
  • Code Shares: AC 4639, NZ 2665
  • Flight Duration: 1 hours 29 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: Airbus A320
  • Callsign: F-KMBS3
  • Departure Timezone: America/Chicago
  • Arrival Timezone: America/Los_Angeles
  • Current Time in Houston: Tuesday 2025-11-18 01:59 AM
  • Current Time in San Francisco: Monday 2025-11-17 23:59 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 07:25 18 November 2025 America/Chicago. The flight is expected to land at San Francisco International Airport at 08:54 18 November 2025 America/Los_Angeles. The flight will last about 1 hours 29 minutes.

United Airlines UA1521 Flight Statistics

United Airlines
United Airlines
FLIGHT NO UA1521
AIRPLANE Airbus A320
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
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
Mon 29 Sep
Arrived On time
Houston (IAH) 2025-09-29T10:07
San Francisco (SFO) 2025-09-29T15:04
2025-09-29T09:59
2025-09-29T14:46
Sun 28 Sep
Arrived On time
Houston (IAH) 2025-09-28T10:07
San Francisco (SFO) 2025-09-28T15:04
2025-09-28T10:03
2025-09-28T15:02

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

Airline Flight no Departure Arrival
United Airlines UA234
United Airlines 		18/11/2025
17:02 		4 hours 23 minutes
19:25
Virgin Australia VA8066
Virgin Australia 		18/11/2025
07:20 		4 hours 25 minutes
09:45
Virgin Australia VA8075
Virgin Australia 		18/11/2025
15:23 		4 hours 24 minutes
17:47
Virgin Australia VA8067
Virgin Australia 		18/11/2025
09:51 		4 hours 13 minutes
12:10
Virgin Australia VA8069
Virgin Australia 		18/11/2025
14:23 		4 hours 19 minutes
16:47
Virgin Australia VA8068
Virgin Australia 		18/11/2025
12:27 		4 hours 10 minutes
14:51
Virgin Australia VA8074
Virgin Australia 		18/11/2025
21:52 		4 hours 20 minutes
00:12
United Airlines UA589
United Airlines 		18/11/2025
14:23 		4 hours 19 minutes
16:47

Frequently asked questions, answered

How long is the flight from Houston to San Francisco?

On average, nonstop flight takes 1 hour(s) 29 minutes, with the flight distance of 2633 km (1636 miles).

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

All United Airlines UA1521 flights are operated using Airbus A320 aircraft.

Which terminal the flight United Airlines UA1521 is arriving at?

Flight United Airlines UA1521 arrives in San Francisco International Airport at Terminal 1.

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 .