Air Canada
flight
AC 4187:
Multiple routes
FLIGHT SCHEDULE
Direct Codeshare Flights:
Air Canada AC4187
Operates only on 2026-03-29
Mon
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Tue
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Wed
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Thu
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Fri
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Sat
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Sun
Codeshare flight, operated by United Airlines.
(UA 2441)
Duration: 1:42, non-stop Boeing 737 MAX 8 (7M8)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-04-07 through 2026-04-09
Mon
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Tue
Wed
Thu
Fri
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Sat
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Sun
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Codeshare flight, operated by United Airlines.
(UA 2441)
Duration: 1:42, non-stop Boeing 737 MAX 8 (7M8)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-04-15 through 2026-04-17
Mon
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Tue
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Wed
Thu
Fri
Sat
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Sun
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Codeshare flight, operated by United Airlines.
(UA 2441)
Duration: 1:42, non-stop Boeing 737 MAX 8 (7M8)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-04-23 through 2026-04-26
Mon
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Tue
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Wed
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Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 2441)
Duration: 1:42, non-stop Boeing 737 MAX 8 (7M8)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-05-27 through 2026-06-03
Mon
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Tue
Wed
Thu
Fri
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Sat
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Sun
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Codeshare flight, operated by United Airlines.
(UA 2441)
Duration: 1:29, non-stop Airbus A320 (320)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-06-10 through 2026-06-12
Mon
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Tue
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Wed
Thu
Fri
Sat
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Sun
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Codeshare flight, operated by United Airlines.
(UA 2441)
Duration: 1:29, non-stop Airbus A320 (320)
Direct Codeshare Flights:
Air Canada AC4187
Operates only on 2026-06-20
Mon
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Tue
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Wed
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Thu
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Fri
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Sat
Sun
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Codeshare flight, operated by United Airlines.
(UA 2441)
Duration: 1:29, non-stop Airbus A320 (320)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-06-28 through 2026-06-29
Mon
Tue
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Wed
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Thu
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Fri
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Sat
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Sun
Codeshare flight, operated by United Airlines.
(UA 2441)
Duration: 1:29, non-stop Airbus A320 (320)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-07-07 through 2026-07-09
Mon
-
-
Tue
Wed
Thu
Fri
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-
Sat
-
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Sun
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Codeshare flight, operated by United Airlines.
(UA 2441)
Duration: 1:29, non-stop Airbus A320 (320)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-07-16 through 2026-07-17
Mon
-
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Tue
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Wed
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Thu
Fri
Sat
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Sun
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Codeshare flight, operated by United Airlines.
(UA 2441)
Duration: 1:29, non-stop Airbus A320 (320)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-07-24 through 2026-07-25
Mon
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Tue
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Wed
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Thu
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Fri
Sat
Sun
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Codeshare flight, operated by United Airlines.
(UA 2441)
Duration: 1:29, non-stop Airbus A320 (320)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-08-08 through 2026-08-09
Mon
-
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Tue
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Wed
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Thu
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Fri
-
-
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 2441)
Duration: 1:29, non-stop Airbus A320 (320)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-08-16 through 2026-08-17
Mon
Tue
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Wed
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Thu
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Fri
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-
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 2441)
Duration: 1:29, non-stop Airbus A320 (320)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-05-01 through 2026-05-03
Mon
-
-
Tue
-
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Wed
-
-
Thu
-
-
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 2441)
Duration: 1:42, non-stop Boeing 737 MAX 8 (7M8)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-05-10 through 2026-05-12
Mon
Tue
Wed
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Thu
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Fri
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Sat
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-
Sun
Codeshare flight, operated by United Airlines.
(UA 2441)
Duration: 1:42, non-stop Boeing 737 MAX 8 (7M8)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-05-19 through 2026-05-20
Mon
-
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Tue
Wed
Thu
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Fri
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Sat
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Sun
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Codeshare flight, operated by United Airlines.
(UA 2441)
Duration: 1:42, non-stop Boeing 737 MAX 8 (7M8)
Direct Codeshare Flights:
Air Canada AC4187
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 5496)
Duration: 1:48, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-03-30 through 2026-04-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 5440)
Duration: 1:52, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-04-10 through 2026-04-14
Mon
Tue
Wed
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Thu
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-
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 5440)
Duration: 1:52, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-04-18 through 2026-04-22
Mon
Tue
Wed
Thu
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-
Fri
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-
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 5440)
Duration: 1:52, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-04-27 through 2026-05-07
Mon
Tue
Wed
Thu
Fri
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-
Sat
-
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Sun
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-
Codeshare flight, operated by United Airlines.
(UA 5440)
Duration: 1:52, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-05-08 through 2026-05-16
Mon
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Tue
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Wed
Thu
Fri
Sat
Sun
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-
Codeshare flight, operated by United Airlines.
(UA 5440)
Duration: 1:52, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-05-17 through 2026-05-18
Mon
Tue
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Wed
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Thu
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Fri
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Sat
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Sun
Codeshare flight, operated by United Airlines.
(UA 5440)
Duration: 1:52, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-05-21 through 2026-05-26
Mon
Tue
Wed
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-
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 5440)
Duration: 1:29, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-05-29 through 2026-06-08
Mon
Tue
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Wed
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Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 5440)
Duration: 1:29, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-06-09 through 2026-06-16
Mon
Tue
Wed
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Thu
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Fri
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-
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 5440)
Duration: 1:29, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-06-17 through 2026-06-26
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 5440)
Duration: 1:29, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-06-27 through 2026-07-04
Mon
-
-
Tue
Wed
Thu
Fri
Sat
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 5440)
Duration: 1:29, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-07-05 through 2026-07-13
Mon
Tue
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Wed
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Thu
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Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 5440)
Duration: 1:29, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-07-14 through 2026-07-22
Mon
Tue
Wed
Thu
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-
Fri
-
-
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 5440)
Duration: 1:29, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-07-23 through 2026-07-30
Mon
Tue
Wed
Thu
Fri
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-
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 5440)
Duration: 1:29, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-07-31 through 2026-08-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 5440)
Duration: 1:29, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-08-10 through 2026-08-15
Mon
Tue
Wed
Thu
Fri
Sat
Sun
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-
Codeshare flight, operated by United Airlines.
(UA 5440)
Duration: 1:29, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Air Canada AC4187
Effective from 2026-10-19
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 5440)
Duration: 1:29, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-08-18 through 2026-10-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 1383)
Duration: 1:41, non-stop Boeing 737 MAX 8 (7M8)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-03-05 through 2026-03-13
Mon
Tue
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Wed
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Thu
Fri
Sat
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Sun
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Codeshare flight, operated by United Airlines.
(UA 5351)
Duration: 1:45, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-03-10 through 2026-03-17
Mon
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Tue
Wed
Thu
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Fri
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Sat
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Sun
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Codeshare flight, operated by United Airlines.
(UA 5351)
Duration: 1:43, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-03-15 through 2026-03-22
Mon
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Tue
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Wed
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Thu
Fri
Sat
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Sun
Codeshare flight, operated by United Airlines.
(UA 5351)
Duration: 1:45, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC4187
Effective 2026-03-23 through 2026-03-27
Mon
Tue
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Wed
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Thu
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Fri
Sat
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Sun
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Codeshare flight, operated by United Airlines.
(UA 5351)
Duration: 1:45, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC4187
Operates only on 2026-03-25
Mon
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Tue
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Wed
Thu
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Fri
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Sat
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Sun
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Codeshare flight, operated by United Airlines.
(UA 5351)
Duration: 1:43, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Air Canada AC4187
Valid until 2026-01-03
Mon
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Tue
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Wed
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Thu
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Fri
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Sat
Sun
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Codeshare flight, operated by United Airlines.
(UA 773)
Duration: 1:36, non-stop Boeing 737 MAX 8 (7M8)
This flight number is listed as serving the following routes:
- San Francisco (SFO) - Santa Ana (SNA)