Air Canada flight AC 3644: Denver - Philadelphia

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 10:05 Denver (DEN) 15:46 Philadelphia (PHL) D
AC 3644 Non-stop Boeing 737 MAX 9 (7M9) 3:41 Effective 2026-04-30 through 2026-05-20
Codeshare flight, operated by United Airlines.(UA 1575)
Daily 10:06 Denver (DEN) 15:36 Philadelphia (PHL) D
AC 3644 Non-stop Boeing 737-800 (738) 3:30 Effective from 2026-05-21
Codeshare flight, operated by United Airlines.(UA 1575)
Daily 10:07 Denver (DEN) 15:48 Philadelphia (PHL) D
AC 3644 Non-stop Boeing 737 MAX 9 (7M9) 3:41 Effective 2026-03-29 through 2026-04-29
Codeshare flight, operated by United Airlines.(UA 1575)
Mon,Tue,Thu-Sun 10:11 Denver (DEN) 15:46 Philadelphia (PHL) D
AC 3644 Non-stop Boeing 737-800 (738) 3:35 Valid until 2026-01-05
Codeshare flight, operated by United Airlines.(UA 1285)
Daily 10:15 Denver (DEN) 15:50 Philadelphia (PHL) D
AC 3644 Non-stop Boeing 737 MAX 9 (7M9) 3:35 Effective 2026-01-06 through 2026-02-03
Codeshare flight, operated by United Airlines.(UA 1575)
Mon,Wed,Thu,Sat 10:15 Denver (DEN) 15:50 Philadelphia (PHL) D
AC 3644 Non-stop Boeing 737 MAX 9 (7M9) 3:35 Effective 2026-02-05 through 2026-02-11
Codeshare flight, operated by United Airlines.(UA 1575)
Tue,Fri,Sun 10:15 Denver (DEN) 15:50 Philadelphia (PHL) D
AC 3644 Non-stop Boeing 737-900 (739) 3:35 Effective 2026-02-06 through 2026-02-10
Codeshare flight, operated by United Airlines.(UA 1575)
Daily 10:15 Denver (DEN) 15:51 Philadelphia (PHL) D
AC 3644 Non-stop Boeing 737 MAX 9 (7M9) 3:36 Effective 2026-02-12 through 2026-03-06
Codeshare flight, operated by United Airlines.(UA 1889)
Sat 10:15 Denver (DEN) 15:51 Philadelphia (PHL) D
AC 3644 Non-stop Boeing 737-800 (738) 3:36 Effective 2026-03-07 through 2026-03-28
Codeshare flight, operated by United Airlines.(UA 1575)
Mon-Fri,Sun 10:15 Denver (DEN) 15:51 Philadelphia (PHL) D
AC 3644 Non-stop Boeing 737 MAX 9 (7M9) 3:36 Effective 2026-03-08 through 2026-03-27
Codeshare flight, operated by United Airlines.(UA 1889)
Wed 10:25 Denver (DEN) 16:00 Philadelphia (PHL) D
AC 3644 Non-stop Boeing 737 MAX 9 (7M9) 3:35 Operates only on 2026-02-04
Codeshare flight, operated by United Airlines.(UA 1575)


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Air Canada flight AC 3644:
Denver - Philadelphia
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Air Canada AC3644
10:05
Denver (DEN)

15:46
Philadelphia (PHL) D
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1575)
Duration: 3:41, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Air Canada AC3644
10:06
Denver (DEN)

15:36
Philadelphia (PHL) D
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1575)
Duration: 3:30, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Air Canada AC3644
10:07
Denver (DEN)

15:48
Philadelphia (PHL) D
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1575)
Duration: 3:41, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Air Canada AC3644
10:11
Denver (DEN)

15:46
Philadelphia (PHL) D
Valid until 2026-01-05
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1285)
Duration: 3:35, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Air Canada AC3644
10:15
Denver (DEN)

15:50
Philadelphia (PHL) D
Effective 2026-01-06 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1575)
Duration: 3:35, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Air Canada AC3644
10:15
Denver (DEN)

15:50
Philadelphia (PHL) D
Effective 2026-02-05 through 2026-02-11
Mon
Tue
-
Wed
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 1575)
Duration: 3:35, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Air Canada AC3644
10:15
Denver (DEN)

15:50
Philadelphia (PHL) D
Effective 2026-02-06 through 2026-02-10
Mon
-
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 1575)
Duration: 3:35, non-stop
Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC3644
10:15
Denver (DEN)

15:51
Philadelphia (PHL) D
Effective 2026-02-12 through 2026-03-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1889)
Duration: 3:36, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Air Canada AC3644
10:15
Denver (DEN)

15:51
Philadelphia (PHL) D
Effective 2026-03-07 through 2026-03-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 1575)
Duration: 3:36, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Air Canada AC3644
10:15
Denver (DEN)

15:51
Philadelphia (PHL) D
Effective 2026-03-08 through 2026-03-27
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 1889)
Duration: 3:36, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Air Canada AC3644
10:25
Denver (DEN)

16:00
Philadelphia (PHL) D
Operates only on 2026-02-04
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 1575)
Duration: 3:35, non-stop
Boeing 737 MAX 9 (7M9)
  • AC 3644 is a domestic flight departing from the Denver airport (DEN) and arriving at Philadelphia airport (PHL).
  • The flight distance is 1553 miles, or 2499 km.
  • The timezone of the departure airport is UTC-7 , and the timezone of the arrival airport is UTC-5 . 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 3:30 and 3:41.
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