Air Canada flight AC 4548: San Francisco - Ontario, Los Angeles

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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon,Wed-Sun 10:45 San Francisco (SFO) 3 12:14 Ontario, Los Angeles (ONT) 2
AC 4548 Non-stop Boeing 737-800 (738) 1:29 Effective 2025-05-22 through 2025-06-01
Codeshare flight, operated by United Airlines.(UA 1697)
Tue 10:45 San Francisco (SFO) 3 12:14 Ontario, Los Angeles (ONT) 2
AC 4548 Non-stop Boeing 737 MAX 8 (7M8) 1:29 Operates only on 2025-05-27
Codeshare flight, operated by United Airlines.(UA 1697)
Mon,Tue 10:45 San Francisco (SFO) 3 12:14 Ontario, Los Angeles (ONT) 2
AC 4548 Non-stop Airbus A319 (319) 1:29 Effective 2025-06-02 through 2025-06-24
Codeshare flight, operated by United Airlines.(UA 1697)
Wed-Sun 10:45 San Francisco (SFO) 3 12:14 Ontario, Los Angeles (ONT) 2
AC 4548 Non-stop Boeing 737-800 (738) 1:29 Effective 2025-06-04 through 2025-06-25
Codeshare flight, operated by United Airlines.(UA 1697)
Daily 10:45 San Francisco (SFO) 3 12:13 Ontario, Los Angeles (ONT) 2
AC 4548 Non-stop Boeing 737-800 (738) 1:28 Effective 2025-08-19 through 2025-09-24
Codeshare flight, operated by United Airlines.(UA 1697)
Daily 10:45 San Francisco (SFO) 3 12:19 Ontario, Los Angeles (ONT) 2
AC 4548 Non-stop Embraer EMB 175 (E7W) 1:34 Effective from 2026-02-23
Codeshare flight, operated by United Airlines.(UA 5981)
Daily 11:47 San Francisco (SFO) 3 13:22 Ontario, Los Angeles (ONT) 2
AC 4548 Non-stop Embraer EMB 175 (E7W) 1:35 Effective 2025-12-18 through 2026-01-05
Codeshare flight, operated by United Airlines.(UA 5981)
Daily 12:55 San Francisco (SFO) 3 14:25 Ontario, Los Angeles (ONT) 2
AC 4548 Non-stop Canadair CRJ 700 (CR7) 1:30 Valid until 2025-05-21
Codeshare flight, operated by United Airlines.(UA 5684)
Daily 13:00 San Francisco (SFO) 3 14:35 Ontario, Los Angeles (ONT) 2
AC 4548 Non-stop Embraer EMB 175 (E7W) 1:35 Effective 2026-02-12 through 2026-02-22
Codeshare flight, operated by United Airlines.(UA 5684)
Daily 13:05 San Francisco (SFO) 3 14:40 Ontario, Los Angeles (ONT) 2
AC 4548 Non-stop Embraer EMB 175 (E7W) 1:35 Effective 2025-12-02 through 2025-12-17
Codeshare flight, operated by United Airlines.(UA 5684)
Daily 13:06 San Francisco (SFO) 3 14:41 Ontario, Los Angeles (ONT) 2
AC 4548 Non-stop Embraer EMB 175 (E7W) 1:35 Effective 2025-10-26 through 2025-12-01
Codeshare flight, operated by United Airlines.(UA 5684)
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Parallax here SFO-ONT


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Air Canada flight AC 4548:
San Francisco - Ontario, Los Angeles
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Air Canada AC4548
10:45
San Francisco (SFO) 3

12:14
Ontario, Los Angeles (ONT) 2
Effective 2025-05-22 through 2025-06-01
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1697)
Duration: 1:29, non-stop
Boeing 737-800 (738)
Air Canada AC4548
10:45
San Francisco (SFO) 3

12:14
Ontario, Los Angeles (ONT) 2
Operates only on 2025-05-27
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 1697)
Duration: 1:29, non-stop
Boeing 737 MAX 8 (7M8)
Air Canada AC4548
10:45
San Francisco (SFO) 3

12:14
Ontario, Los Angeles (ONT) 2
Effective 2025-06-02 through 2025-06-24
Mon
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 1697)
Duration: 1:29, non-stop
Airbus A319 (319)
Air Canada AC4548
10:45
San Francisco (SFO) 3

12:14
Ontario, Los Angeles (ONT) 2
Effective 2025-06-04 through 2025-06-25
Mon
-
Tue
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1697)
Duration: 1:29, non-stop
Boeing 737-800 (738)
Air Canada AC4548
10:45
San Francisco (SFO) 3

12:13
Ontario, Los Angeles (ONT) 2
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1697)
Duration: 1:28, non-stop
Boeing 737-800 (738)
Air Canada AC4548
10:45
San Francisco (SFO) 3

12:19
Ontario, Los Angeles (ONT) 2
Effective from 2026-02-23
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5981)
Duration: 1:34, non-stop
Embraer EMB 175 (E7W)
Air Canada AC4548
11:47
San Francisco (SFO) 3

13:22
Ontario, Los Angeles (ONT) 2
Effective 2025-12-18 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5981)
Duration: 1:35, non-stop
Embraer EMB 175 (E7W)
Air Canada AC4548
12:55
San Francisco (SFO) 3

14:25
Ontario, Los Angeles (ONT) 2
Valid until 2025-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5684)
Duration: 1:30, non-stop
Canadair CRJ 700 (CR7)
Air Canada AC4548
13:00
San Francisco (SFO) 3

14:35
Ontario, Los Angeles (ONT) 2
Effective 2026-02-12 through 2026-02-22
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5684)
Duration: 1:35, non-stop
Embraer EMB 175 (E7W)
Air Canada AC4548
13:05
San Francisco (SFO) 3

14:40
Ontario, Los Angeles (ONT) 2
Effective 2025-12-02 through 2025-12-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5684)
Duration: 1:35, non-stop
Embraer EMB 175 (E7W)
Air Canada AC4548
13:06
San Francisco (SFO) 3

14:41
Ontario, Los Angeles (ONT) 2
Effective 2025-10-26 through 2025-12-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5684)
Duration: 1:35, non-stop
Embraer EMB 175 (E7W)
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Parallax here SFO-ONT
  • AC 4548 is a domestic flight departing from the San Francisco airport (SFO) and arriving at Ontario, Los Angeles airport (ONT).
  • The flight distance is 363 miles, or 584 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 1:28 and 1:35.
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