Air Canada
flight
AC 4559:
San Francisco - San Diego
San Francisco - San Diego
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FLIGHT SCHEDULE
Direct Codeshare Flights:
Air Canada AC4559
Effective 2026-02-12 through 2026-03-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 2391)
Duration: 1:38, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Air Canada AC4559
Effective 2026-03-06 through 2026-03-27
Mon
-
-
Tue
-
-
Wed
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-
Thu
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-
Fri
Sat
-
-
Sun
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-
Codeshare flight, operated by United Airlines.
(UA 1668)
Duration: 1:38, non-stop Boeing 737 MAX 8 (7M8)
Direct Codeshare Flights:
Air Canada AC4559
Effective 2026-03-07 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
-
-
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 2391)
Duration: 1:38, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Air Canada AC4559
Effective 2026-01-06 through 2026-02-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 2391)
Duration: 1:39, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Air Canada AC4559
Operates only on 2026-02-03
Mon
-
-
Tue
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 2391)
Duration: 1:39, non-stop Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Air Canada AC4559
Effective 2026-02-04 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 2391)
Duration: 1:39, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Air Canada AC4559
Valid until 2026-01-05
Mon
Tue
-
-
Wed
-
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 2391)
Duration: 1:33, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Air Canada AC4559
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 1668)
Duration: 1:48, non-stop Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Air Canada AC4559
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 1668)
Duration: 1:49, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Air Canada AC4559
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 1668)
Duration: 1:48, non-stop Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Air Canada AC4559
Effective 2026-05-21 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 1668)
Duration: 1:41, non-stop Boeing 737-900 (739)
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Parallax here SFO-SAN
- AC 4559 is a domestic flight departing from the San Francisco airport (SFO) and arriving at San Diego airport (SAN).
- The flight distance is 446 miles, or 719 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 1:33 and 1:49.