United Airlines flight UA 939: London Heathrow - San Francisco

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FLIGHT SCHEDULE
Direct Flights:
Daily 16:15 London Heathrow (LHR) 2 19:20 San Francisco (SFO) I
UA 939 Non-stop Boeing 777 (777) 11:05 Valid until 2025-05-21
Thu 16:15 London Heathrow (LHR) 2 19:15 San Francisco (SFO) I
UA 939 Non-stop Boeing 777 (777) 11:00 Operates only on 2025-05-22
Daily 16:15 London Heathrow (LHR) 2 19:10 San Francisco (SFO) I
UA 939 Non-stop Boeing 787-9 (789) 10:55 Effective 2025-05-23 through 2025-08-31
Daily 16:15 London Heathrow (LHR) 2 19:15 San Francisco (SFO) I
UA 939 Non-stop Boeing 787-9 (789) 11:00 Effective 2025-09-01 through 2025-09-25
Daily 16:15 London Heathrow (LHR) 2 19:20 San Francisco (SFO) I
UA 939 Non-stop Boeing 777 (777) 11:05 Effective 2025-09-26 through 2025-10-25
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United Airlines flight UA 939:
London Heathrow - San Francisco
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA939
16:15
London Heathrow (LHR) 2

19:20
San Francisco (SFO) I
Valid until 2025-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 11:05, non-stop
Boeing 777 (777)
United Airlines UA939
16:15
London Heathrow (LHR) 2

19:15
San Francisco (SFO) I
Operates only on 2025-05-22
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 11:00, non-stop
Boeing 777 (777)
United Airlines UA939
16:15
London Heathrow (LHR) 2

19:10
San Francisco (SFO) I
Effective 2025-05-23 through 2025-08-31
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 10:55, non-stop
Boeing 787-9 (789)
United Airlines UA939
16:15
London Heathrow (LHR) 2

19:15
San Francisco (SFO) I
Effective 2025-09-01 through 2025-09-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 11:00, non-stop
Boeing 787-9 (789)
United Airlines UA939
16:15
London Heathrow (LHR) 2

19:20
San Francisco (SFO) I
Effective 2025-09-26 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 11:05, non-stop
Boeing 777 (777)
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  • UA 939 is an international flight departing from London Heathrow airport, United Kingdom (LHR) and arriving at San Francisco airport, United States (SFO).
  • The flight distance is 5350 miles, or 8610 km.
  • The timezone of the departure airport is UTC+0 , and the timezone of the arrival airport is UTC-8 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
  • For direct flights, the flight time varies between 10:55 and 11:05.
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