Air Canada flight AC 4378: Boise - San Francisco

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 12:59 Boise (BOI) 14:05 San Francisco (SFO) 3
AC 4378 Non-stop Embraer EMB 175 (E7W) 2:06 Effective 2026-03-05 through 2026-03-28
Codeshare flight, operated by United Airlines.(UA 6005)
Mon-Fri 13:44 Boise (BOI) 14:50 San Francisco (SFO) 3
AC 4378 Non-stop Embraer EMB 175 (E7W) 2:06 Effective 2026-02-12 through 2026-03-04
Codeshare flight, operated by United Airlines.(UA 5312)
Daily 14:10 Boise (BOI) 15:19 San Francisco (SFO) 3
AC 4378 Non-stop Embraer EMB 175 (E7W) 2:09 Valid until 2026-01-05
Codeshare flight, operated by United Airlines.(UA 5312)
Daily 14:20 Boise (BOI) 15:29 San Francisco (SFO) 3
AC 4378 Non-stop Embraer EMB 175 (E7W) 2:09 Effective 2026-01-06 through 2026-02-11
Codeshare flight, operated by United Airlines.(UA 5312)
Daily 16:05 Boise (BOI) 17:07 San Francisco (SFO) 3
AC 4378 Non-stop Embraer EMB 175 (E7W) 2:02 Effective 2026-03-29 through 2026-04-29
Codeshare flight, operated by United Airlines.(UA 4661)
Daily 16:05 Boise (BOI) 17:07 San Francisco (SFO) 3
AC 4378 Non-stop Canadair CRJ 700 (CR7) 2:02 Effective 2026-04-30 through 2026-05-20
Codeshare flight, operated by United Airlines.(UA 4661)
Daily 16:05 Boise (BOI) 17:07 San Francisco (SFO) 3
AC 4378 Non-stop Embraer EMB 175 (E7W) 2:02 Effective from 2026-05-21
Codeshare flight, operated by United Airlines.(UA 4661)


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Air Canada flight AC 4378:
Boise - San Francisco
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Air Canada AC4378
12:59
Boise (BOI)

14:05
San Francisco (SFO) 3
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 6005)
Duration: 2:06, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC4378
13:44
Boise (BOI)

14:50
San Francisco (SFO) 3
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 5312)
Duration: 2:06, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC4378
14:10
Boise (BOI)

15:19
San Francisco (SFO) 3
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5312)
Duration: 2:09, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC4378
14:20
Boise (BOI)

15:29
San Francisco (SFO) 3
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5312)
Duration: 2:09, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC4378
16:05
Boise (BOI)

17:07
San Francisco (SFO) 3
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4661)
Duration: 2:02, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC4378
16:05
Boise (BOI)

17:07
San Francisco (SFO) 3
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4661)
Duration: 2:02, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Air Canada AC4378
16:05
Boise (BOI)

17:07
San Francisco (SFO) 3
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4661)
Duration: 2:02, non-stop
Embraer EMB 175 (E7W)
  • AC 4378 is a domestic flight departing from the Boise airport (BOI) and arriving at San Francisco airport (SFO).
  • The flight distance is 522 miles, or 839 km.
  • The timezone of the departure airport is UTC-7 , and the timezone of the arrival airport is UTC-8 . 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 2:02 and 2:09.
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