Cathay Pacific flight CX 635: Hong Kong - Singapore Changi

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon 15:10 Hong Kong (HKG) 1 19:15 Singapore Changi (SIN) 4
CX 635 Non-stop Airbus A321neo (32Q) 4:05 Valid until 2026-01-05
Tue-Sun 15:10 Hong Kong (HKG) 1 19:15 Singapore Changi (SIN) 4
CX 635 Non-stop Airbus A330-300 (333) 4:05 Valid until 2026-01-04
Daily 15:10 Hong Kong (HKG) 1 19:15 Singapore Changi (SIN) 4
CX 635 Non-stop Airbus A321neo (32Q) 4:05 Effective 2026-01-06 through 2026-01-14
Fri,Sun 15:10 Hong Kong (HKG) 1 19:15 Singapore Changi (SIN) 4
CX 635 Non-stop Airbus A321neo (32Q) 4:05 Effective 2026-01-16 through 2026-01-18
Daily 15:10 Hong Kong (HKG) 1 19:15 Singapore Changi (SIN) 4
CX 635 Non-stop Boeing 777-300 (773) 4:05 Effective 2026-01-19 through 2026-01-25
Mon-Fri,Sun 15:10 Hong Kong (HKG) 1 19:15 Singapore Changi (SIN) 4
CX 635 Non-stop Airbus A321neo (32Q) 4:05 Effective 2026-01-26 through 2026-02-01
Daily 15:10 Hong Kong (HKG) 1 19:15 Singapore Changi (SIN) 4
CX 635 Non-stop Boeing 777-300 (773) 4:05 Effective 2026-02-03 through 2026-03-01
Daily 15:10 Hong Kong (HKG) 1 19:15 Singapore Changi (SIN) 4
CX 635 Non-stop Airbus A321neo (32Q) 4:05 Effective 2026-03-02 through 2026-03-12
Fri 15:10 Hong Kong (HKG) 1 19:15 Singapore Changi (SIN) 4
CX 635 Non-stop Airbus A330-300 (333) 4:05 Operates only on 2026-03-13
Daily 15:10 Hong Kong (HKG) 1 19:15 Singapore Changi (SIN) 4
CX 635 Non-stop Airbus A321neo (32Q) 4:05 Effective 2026-03-14 through 2026-03-28
Daily 15:10 Hong Kong (HKG) 1 19:15 Singapore Changi (SIN) 4
CX 635 Non-stop Airbus A321neo (32Q) 4:05 Effective from 2026-10-25
Daily 15:15 Hong Kong (HKG) 1 19:05 Singapore Changi (SIN) 4
CX 635 Non-stop Airbus A330-300 (333) 3:50 Effective 2026-03-29 through 2026-10-24


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Cathay Pacific flight CX 635:
Hong Kong - Singapore Changi
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Cathay Pacific CX635
15:10
Hong Kong (HKG) 1

19:15
Singapore Changi (SIN) 4
Valid until 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:05, non-stop
Airbus A321neo (32Q)
Direct Flights:
Cathay Pacific CX635
15:10
Hong Kong (HKG) 1

19:15
Singapore Changi (SIN) 4
Valid until 2026-01-04
Mon
-
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:05, non-stop
Airbus A330-300 (333)
Direct Flights:
Cathay Pacific CX635
15:10
Hong Kong (HKG) 1

19:15
Singapore Changi (SIN) 4
Effective 2026-01-06 through 2026-01-14
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:05, non-stop
Airbus A321neo (32Q)
Direct Flights:
Cathay Pacific CX635
15:10
Hong Kong (HKG) 1

19:15
Singapore Changi (SIN) 4
Effective 2026-01-16 through 2026-01-18
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 4:05, non-stop
Airbus A321neo (32Q)
Direct Flights:
Cathay Pacific CX635
15:10
Hong Kong (HKG) 1

19:15
Singapore Changi (SIN) 4
Effective 2026-01-19 through 2026-01-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:05, non-stop
Boeing 777-300 (773)
Direct Flights:
Cathay Pacific CX635
15:10
Hong Kong (HKG) 1

19:15
Singapore Changi (SIN) 4
Effective 2026-01-26 through 2026-02-01
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 4:05, non-stop
Airbus A321neo (32Q)
Direct Flights:
Cathay Pacific CX635
15:10
Hong Kong (HKG) 1

19:15
Singapore Changi (SIN) 4
Effective 2026-02-03 through 2026-03-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:05, non-stop
Boeing 777-300 (773)
Direct Flights:
Cathay Pacific CX635
15:10
Hong Kong (HKG) 1

19:15
Singapore Changi (SIN) 4
Effective 2026-03-02 through 2026-03-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:05, non-stop
Airbus A321neo (32Q)
Direct Flights:
Cathay Pacific CX635
15:10
Hong Kong (HKG) 1

19:15
Singapore Changi (SIN) 4
Operates only on 2026-03-13
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 4:05, non-stop
Airbus A330-300 (333)
Direct Flights:
Cathay Pacific CX635
15:10
Hong Kong (HKG) 1

19:15
Singapore Changi (SIN) 4
Effective 2026-03-14 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:05, non-stop
Airbus A321neo (32Q)
Direct Flights:
Cathay Pacific CX635
15:10
Hong Kong (HKG) 1

19:15
Singapore Changi (SIN) 4
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:05, non-stop
Airbus A321neo (32Q)
Direct Flights:
Cathay Pacific CX635
15:15
Hong Kong (HKG) 1

19:05
Singapore Changi (SIN) 4
Effective 2026-03-29 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:50, non-stop
Airbus A330-300 (333)
  • CX 635 is an international flight departing from Hong Kong airport, Hong Kong (HKG) and arriving at Singapore Changi airport, Singapore (SIN).
  • The flight distance is 1593 miles, or 2563 km.
  • The timezone of both the departure and the arrival airports is UTC+8 . Current time at both airports is (loading...).
  • For direct flights, the flight time varies between 3:50 and 4:05.
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