Air Canada flight AC 3870: Luis Munoz Marin, San Juan - Washington Dulles

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 16:50 Luis Munoz Marin, San Juan (SJU) B 20:55 Washington Dulles (IAD)
AC 3870 Non-stop Boeing 737 MAX 9 (7M9) 4:05 Effective 2026-03-08 through 2026-03-28
Codeshare flight, operated by United Airlines.(UA 2024)
Daily 16:50 Luis Munoz Marin, San Juan (SJU) B 20:55 Washington Dulles (IAD)
AC 3870 Non-stop Boeing 737 MAX 8 (7M8) 4:05 Effective from 2026-10-25
Codeshare flight, operated by United Airlines.(UA 2024)
Daily 16:55 Luis Munoz Marin, San Juan (SJU) B 20:56 Washington Dulles (IAD)
AC 3870 Non-stop Boeing 737-900 (739) 4:01 Effective 2026-03-29 through 2026-04-29
Codeshare flight, operated by United Airlines.(UA 2024)
Daily 16:55 Luis Munoz Marin, San Juan (SJU) B 20:56 Washington Dulles (IAD)
AC 3870 Non-stop Boeing 737 MAX 8 (7M8) 4:01 Effective 2026-04-30 through 2026-05-20
Codeshare flight, operated by United Airlines.(UA 2024)
Daily 16:55 Luis Munoz Marin, San Juan (SJU) B 20:54 Washington Dulles (IAD)
AC 3870 Non-stop Boeing 737-900 (739) 3:59 Effective 2026-05-21 through 2026-08-17
Codeshare flight, operated by United Airlines.(UA 2024)
Daily 16:55 Luis Munoz Marin, San Juan (SJU) B 20:52 Washington Dulles (IAD)
AC 3870 Non-stop Boeing 737-900 (739) 3:57 Effective 2026-08-18 through 2026-08-31
Codeshare flight, operated by United Airlines.(UA 2024)
Mon-Fri 16:55 Luis Munoz Marin, San Juan (SJU) B 20:47 Washington Dulles (IAD)
AC 3870 Non-stop Boeing 737 MAX 8 (7M8) 3:52 Effective 2026-09-01 through 2026-09-23
Codeshare flight, operated by United Airlines.(UA 2024)
Sat,Sun 16:55 Luis Munoz Marin, San Juan (SJU) B 20:52 Washington Dulles (IAD)
AC 3870 Non-stop Boeing 737-900 (739) 3:57 Effective 2026-09-05 through 2026-09-20
Codeshare flight, operated by United Airlines.(UA 2024)
Daily 16:55 Luis Munoz Marin, San Juan (SJU) B 20:52 Washington Dulles (IAD)
AC 3870 Non-stop Boeing 737-900 (739) 3:57 Effective 2026-09-24 through 2026-10-24
Codeshare flight, operated by United Airlines.(UA 2024)
Daily 17:50 Luis Munoz Marin, San Juan (SJU) B 20:55 Washington Dulles (IAD)
AC 3870 Non-stop Boeing 737 MAX 9 (7M9) 4:05 Valid until 2026-03-07
Codeshare flight, operated by United Airlines.(UA 2024)
Air Canada flight AC 3870:
Luis Munoz Marin, San Juan - Washington Dulles
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:

Air Canada AC3870
Effective 2026-03-08 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2024)
Duration: 4:05, non-stop
Boeing 737 MAX 9 (7M9)

Direct Codeshare Flights:

Air Canada AC3870
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2024)
Duration: 4:05, non-stop
Boeing 737 MAX 8 (7M8)

Direct Codeshare Flights:

Air Canada AC3870
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2024)
Duration: 4:01, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Air Canada AC3870
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2024)
Duration: 4:01, non-stop
Boeing 737 MAX 8 (7M8)

Direct Codeshare Flights:

Air Canada AC3870
Effective 2026-05-21 through 2026-08-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2024)
Duration: 3:59, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Air Canada AC3870
Effective 2026-08-18 through 2026-08-31
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2024)
Duration: 3:57, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Air Canada AC3870
Effective 2026-09-01 through 2026-09-23
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2024)
Duration: 3:52, non-stop
Boeing 737 MAX 8 (7M8)

Direct Codeshare Flights:

Air Canada AC3870
Effective 2026-09-05 through 2026-09-20
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2024)
Duration: 3:57, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Air Canada AC3870
Effective 2026-09-24 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2024)
Duration: 3:57, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Air Canada AC3870
Valid until 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2024)
Duration: 4:05, non-stop
Boeing 737 MAX 9 (7M9)
  • AC 3870 is an international flight departing from Luis Munoz Marin, San Juan airport, Puerto Rico (SJU) and arriving at Washington Dulles airport, United States (IAD).
  • The flight distance is 1574 miles, or 2532 km.
  • The timezone of the departure airport is UTC-4 , and the timezone of the arrival airport is UTC-5 . 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 3:52 and 4:05.