Air Canada flight AC 4121: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Wed 15:10 Ontario, Los Angeles (ONT) 2 16:53 San Francisco (SFO) 3
AC 4121 Non-stop Canadair CRJ 700 (CR7) 1:43 Operates only on 2025-05-21
Codeshare flight, operated by United Airlines.(UA 4662)
Daily 15:15 Ontario, Los Angeles (ONT) 2 16:47 San Francisco (SFO) 3
AC 4121 Non-stop Embraer EMB 175 (E7W) 1:32 Effective 2025-10-26 through 2025-12-01
Codeshare flight, operated by United Airlines.(UA 5908)
Daily 15:20 Ontario, Los Angeles (ONT) 2 16:52 San Francisco (SFO) 3
AC 4121 Non-stop Embraer EMB 175 (E7W) 1:32 Effective 2025-12-02 through 2025-12-17
Codeshare flight, operated by United Airlines.(UA 5908)
Daily 15:30 Ontario, Los Angeles (ONT) 2 17:11 San Francisco (SFO) 3
AC 4121 Non-stop Embraer EMB 175 (E7W) 1:41 Effective from 2026-02-12
Codeshare flight, operated by United Airlines.(UA 5908)
Tue,Wed,Fri,Sun 16:15 Newark Liberty, New York (EWR) C 07:15 Dubrovnik (DBV)
AC 4121 Non-stop Boeing 767-400 (764) 9:00 Effective 2025-09-26 through 2025-10-24
Codeshare flight, operated by United Airlines.(UA 385)
The flight arrives 1 day after departure.
Wed 16:55 Newark Liberty, New York (EWR) C 08:00 Dubrovnik (DBV)
AC 4121 Non-stop Boeing 767-400 (764) 9:05 Effective 2025-05-07 through 2025-05-14
Codeshare flight, operated by United Airlines.(UA 385)
The flight arrives 1 day after departure.
Wed 17:00 Newark Liberty, New York (EWR) C 08:00 Dubrovnik (DBV)
AC 4121 Non-stop Boeing 767-400 (764) 9:00 Operates only on 2025-09-24
Codeshare flight, operated by United Airlines.(UA 385)
The flight arrives 1 day after departure.
Mon,Tue,Thu-Sun 19:10 Newark Liberty, New York (EWR) C 10:15 Dubrovnik (DBV)
AC 4121 Non-stop Boeing 767-400 (764) 9:05 Valid until 2025-05-22
Codeshare flight, operated by United Airlines.(UA 385)
The flight arrives 1 day after departure.
Tue,Thu,Sun 19:10 Newark Liberty, New York (EWR) C 10:15 Dubrovnik (DBV)
AC 4121 Non-stop Boeing 767-400 (764) 9:05 Effective 2025-05-25 through 2025-08-31
Codeshare flight, operated by United Airlines.(UA 385)
The flight arrives 1 day after departure.
Tue,Thu,Sun 19:15 Newark Liberty, New York (EWR) C 10:15 Dubrovnik (DBV)
AC 4121 Non-stop Boeing 767-400 (764) 9:00 Effective 2025-09-02 through 2025-09-23
Codeshare flight, operated by United Airlines.(UA 385)
The flight arrives 1 day after departure.
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This flight number is listed as serving the following routes:


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Air Canada flight AC 4121: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Air Canada AC4121
15:10
Ontario, Los Angeles (ONT) 2

16:53
San Francisco (SFO) 3
Operates only on 2025-05-21
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 4662)
Duration: 1:43, non-stop
Canadair CRJ 700 (CR7)
Air Canada AC4121
15:15
Ontario, Los Angeles (ONT) 2

16:47
San Francisco (SFO) 3
Effective 2025-10-26 through 2025-12-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5908)
Duration: 1:32, non-stop
Embraer EMB 175 (E7W)
Air Canada AC4121
15:20
Ontario, Los Angeles (ONT) 2

16:52
San Francisco (SFO) 3
Effective 2025-12-02 through 2025-12-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5908)
Duration: 1:32, non-stop
Embraer EMB 175 (E7W)
Air Canada AC4121
15:30
Ontario, Los Angeles (ONT) 2

17:11
San Francisco (SFO) 3
Effective from 2026-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5908)
Duration: 1:41, non-stop
Embraer EMB 175 (E7W)
Air Canada AC4121
16:15
Newark Liberty, New York (EWR) C

07:15(+1)
Dubrovnik (DBV)
Effective 2025-09-26 through 2025-10-24
Mon
-
Tue
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 385)
Duration: 9:00, non-stop
Boeing 767-400 (764)
The flight arrives 1 day after departure.
Air Canada AC4121
16:55
Newark Liberty, New York (EWR) C

08:00(+1)
Dubrovnik (DBV)
Effective 2025-05-07 through 2025-05-14
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 385)
Duration: 9:05, non-stop
Boeing 767-400 (764)
The flight arrives 1 day after departure.
Air Canada AC4121
17:00
Newark Liberty, New York (EWR) C

08:00(+1)
Dubrovnik (DBV)
Operates only on 2025-09-24
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 385)
Duration: 9:00, non-stop
Boeing 767-400 (764)
The flight arrives 1 day after departure.
Air Canada AC4121
19:10
Newark Liberty, New York (EWR) C

10:15(+1)
Dubrovnik (DBV)
Valid until 2025-05-22
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 385)
Duration: 9:05, non-stop
Boeing 767-400 (764)
The flight arrives 1 day after departure.
Air Canada AC4121
19:10
Newark Liberty, New York (EWR) C

10:15(+1)
Dubrovnik (DBV)
Effective 2025-05-25 through 2025-08-31
Mon
-
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 385)
Duration: 9:05, non-stop
Boeing 767-400 (764)
The flight arrives 1 day after departure.
Air Canada AC4121
19:15
Newark Liberty, New York (EWR) C

10:15(+1)
Dubrovnik (DBV)
Effective 2025-09-02 through 2025-09-23
Mon
-
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 385)
Duration: 9:00, non-stop
Boeing 767-400 (764)
The flight arrives 1 day after departure.
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This flight number is listed as serving the following routes:
  • Newark Liberty, New York (EWR) - Dubrovnik (DBV)
  • Ontario, Los Angeles (ONT) - San Francisco (SFO)
All Air Canada flights
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