Air Canada flight AC 4221: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon 05:45 Providence (PVD) 07:32 Washington Dulles (IAD)
AC 4221 Non-stop Embraer EMB 175 (E7W) 1:47 Operates only on 2026-08-17
Codeshare flight, operated by United Airlines.(UA 6192)
Daily 17:15 Washington Dulles (IAD) 18:50 Providence (PVD)
AC 4221 Non-stop Canadair CRJ 550 (CR5) 1:35 Valid until 2026-01-05
Codeshare flight, operated by United Airlines.(UA 4564)
Daily 17:38 Washington Dulles (IAD) 19:15 Providence (PVD)
AC 4221 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:37 Effective 2026-02-12 through 2026-03-04
Codeshare flight, operated by United Airlines.(UA 4251)
Daily 17:39 Washington Dulles (IAD) 19:16 Providence (PVD)
AC 4221 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:37 Effective 2026-01-06 through 2026-02-11
Codeshare flight, operated by United Airlines.(UA 4251)
Mon,Tue 17:50 Washington Dulles (IAD) 19:27 Providence (PVD)
AC 4221 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:37 Effective 2026-03-09 through 2026-03-24
Codeshare flight, operated by United Airlines.(UA 4370)
Daily 17:50 Washington Dulles (IAD) 19:24 Providence (PVD)
AC 4221 Non-stop Embraer EMB 175 (E7W) 1:34 Effective from 2026-08-18
Codeshare flight, operated by United Airlines.(UA 4053)
Wed-Sun 22:10 Washington Dulles (IAD) 23:42 Providence (PVD)
AC 4221 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:32 Effective 2026-03-05 through 2026-03-28
Codeshare flight, operated by United Airlines.(UA 4345)
Daily 22:10 Washington Dulles (IAD) 23:44 Providence (PVD)
AC 4221 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:34 Effective 2026-03-29 through 2026-05-20
Codeshare flight, operated by United Airlines.(UA 4345)
Daily 22:30 Washington Dulles (IAD) 00:04 Providence (PVD)
AC 4221 Non-stop Embraer EMB 175 (E7W) 1:34 Effective 2026-05-21 through 2026-08-16
Codeshare flight, operated by United Airlines.(UA 6182)
The flight arrives 1 day after departure.
This flight number is listed as serving the following routes:


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Air Canada flight AC 4221: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Air Canada AC4221
05:45
Providence (PVD)

07:32
Washington Dulles (IAD)
Operates only on 2026-08-17
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 6192)
Duration: 1:47, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC4221
17:15
Washington Dulles (IAD)

18:50
Providence (PVD)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4564)
Duration: 1:35, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Air Canada AC4221
17:38
Washington Dulles (IAD)

19:15
Providence (PVD)
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4251)
Duration: 1:37, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Codeshare Flights:
Air Canada AC4221
17:39
Washington Dulles (IAD)

19:16
Providence (PVD)
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4251)
Duration: 1:37, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Codeshare Flights:
Air Canada AC4221
17:50
Washington Dulles (IAD)

19:27
Providence (PVD)
Effective 2026-03-09 through 2026-03-24
Mon
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 4370)
Duration: 1:37, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Codeshare Flights:
Air Canada AC4221
17:50
Washington Dulles (IAD)

19:24
Providence (PVD)
Effective from 2026-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4053)
Duration: 1:34, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC4221
22:10
Washington Dulles (IAD)

23:42
Providence (PVD)
Effective 2026-03-05 through 2026-03-28
Mon
-
Tue
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4345)
Duration: 1:32, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Codeshare Flights:
Air Canada AC4221
22:10
Washington Dulles (IAD)

23:44
Providence (PVD)
Effective 2026-03-29 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4345)
Duration: 1:34, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Codeshare Flights:
Air Canada AC4221
22:30
Washington Dulles (IAD)

00:04(+1)
Providence (PVD)
Effective 2026-05-21 through 2026-08-16
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 6182)
Duration: 1:34, non-stop
Embraer EMB 175 (E7W)
The flight arrives 1 day after departure.
This flight number is listed as serving the following routes:
  • Providence (PVD) - Washington Dulles (IAD)
All Air Canada flights
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