United Airlines UA4639 Flight Status Today

Domestic flight United Airlines UA4639 takes off from Ontario (ONT) United States to San Francisco (SFO) United States. It's operated by United Airlines. The plane leaves Ontario International Airport at 07:32 12 January 2026 America/Los_Angeles. The flight is expected to land at San Francisco International Airport at 08:05 12 January 2026 America/Los_Angeles. The flight will last about 1 hours 33 minutes.

Current status of UA4639 is Scheduled Delayed by 17m Estimated Depart in 5 hours, 56 minutes

UA4639 - UAL4639 United Airlines (UA)
ONT Ontario United States
Flight ONT to SFO
SFO San Francisco United States
Scheduled Delayed by 17m Estimated Depart in 5 hours, 56 minutes
Departure Ontario International Airport
IATA: ONTICAO: KONT
Scheduled 07:32 12 January 2026
Estimated 07:49 12 January 2026
None None
Arrival San Francisco International Airport
IATA: SFOICAO: KSFO
Scheduled 08:05 12 January 2026
Estimated 07:48 12 January 2026
2 F21
UA4639 Detail
  • Type: Domestic Flight
  • Flight Duration: 1 hours 33 minutes
  • Flight Distance: 586 kms / 364 miles
Airline
  • United Airlines
  • IATA: UA
  • ICAO: UAL
  • Operating Days: Sunday
Passenger Services
  • Service type: Normal passenger
  • Seats: 50
  • Freight capacity: 1 tons
  • Passenger classes: Economy, Shuttle, Premium Economy
More Detail
  • Aircraft: Canadair (Bombardier) Regional Jet 700 and Challenger 870
  • Callsign: F-KCDC3
  • Departure Timezone: America/Los_Angeles
  • Arrival Timezone: America/Los_Angeles
  • Current Time in Ontario: Monday 2026-01-12 01:53 AM
  • Current Time in San Francisco: Monday 2026-01-12 01:53 AM

Flight routes similar to United Airlines UA4639

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United Airlines UA5710
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Air Canada AC4080
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United Airlines Flight UA4639 FAQs

What is the scheduled flight duration for United Airlines UA4639 flight?

On average, nonstop flight takes 1 hour(s) 33 minutes, with the flight distance of 586 km (364 miles).

What is the current status of United Airlines UA4639 flight?

The current status of flight United Airlines UA4639 is Scheduled Delayed by 17m.

What type of aircraft is used for the United Airlines UA4639 flight?

All United Airlines UA4639 flights are operated using Canadair (Bombardier) Regional Jet 700 and Challenger 870 aircraft.

When does the flight United Airlines UA4639 arrive?

Flight United Airlines UA4639 arrives at 08:05.

Which terminal the flight United Airlines UA4639 is arriving at?

Flight United Airlines UA4639 arrives in San Francisco International Airport at Terminal 2.

How many United Airlines UA4639 flights are operated a week?

1 flights per week. The Flight United Airlines UA4639 is operated on Sunday.