Air Canada flight AC 4321: Houston George Bush - Birmingham

FLIGHT SCHEDULE
Direct Codeshare Flights:
Thu 12:05 Houston George Bush (IAH) B 13:58 Birmingham (BHM) AC 4321 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:53 Operates only on 2026-03-12 Codeshare flight, operated by United Airlines.(UA 4256)
Fri 12:05 Houston George Bush (IAH) B 13:58 Birmingham (BHM) AC 4321 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:53 Operates only on 2026-03-20 Codeshare flight, operated by United Airlines.(UA 4256)
Tue,Wed,Fri,Sun 12:10 Houston George Bush (IAH) B 14:05 Birmingham (BHM) AC 4321 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:55 Valid until 2026-01-06 Codeshare flight, operated by United Airlines.(UA 4256)
Mon,Wed-Sat 12:10 Houston George Bush (IAH) B 14:02 Birmingham (BHM) AC 4321 Non-stop Embraer EMB 175 (E7W) 1:52 Effective 2026-01-08 through 2026-01-14 Codeshare flight, operated by United Airlines.(UA 5503)
Mon,Tue,Thu,Fri 12:10 Houston George Bush (IAH) B 14:02 Birmingham (BHM) AC 4321 Non-stop Embraer EMB 175 (E7W) 1:52 Effective 2026-01-16 through 2026-01-22 Codeshare flight, operated by United Airlines.(UA 5503)
Tue,Thu-Sat 12:10 Houston George Bush (IAH) B 14:02 Birmingham (BHM) AC 4321 Non-stop Embraer EMB 175 (E7W) 1:52 Effective 2026-01-24 through 2026-01-30 Codeshare flight, operated by United Airlines.(UA 5503)
Mon,Fri 12:10 Houston George Bush (IAH) B 14:02 Birmingham (BHM) AC 4321 Non-stop Embraer EMB 175 (E7W) 1:52 Effective 2026-02-02 through 2026-02-06 Codeshare flight, operated by United Airlines.(UA 5503)
Tue,Wed 12:10 Houston George Bush (IAH) B 14:02 Birmingham (BHM) AC 4321 Non-stop Embraer EMB 175 (E7W) 1:52 Effective 2026-02-10 through 2026-02-11 Codeshare flight, operated by United Airlines.(UA 5503)
Wed 12:10 Houston George Bush (IAH) B 14:06 Birmingham (BHM) AC 4321 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:56 Operates only on 2026-04-08 Codeshare flight, operated by United Airlines.(UA 4256)
Thu 12:10 Houston George Bush (IAH) B 14:06 Birmingham (BHM) AC 4321 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:56 Operates only on 2026-04-16 Codeshare flight, operated by United Airlines.(UA 4256)
Fri 12:10 Houston George Bush (IAH) B 14:06 Birmingham (BHM) AC 4321 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:56 Operates only on 2026-04-24 Codeshare flight, operated by United Airlines.(UA 4256)
Sun 12:25 Houston George Bush (IAH) B 14:17 Birmingham (BHM) AC 4321 Non-stop Embraer EMB 175 (E7W) 1:52 Operates only on 2026-02-08 Codeshare flight, operated by United Airlines.(UA 5503)
Tue,Wed 14:20 Houston George Bush (IAH) B 16:12 Birmingham (BHM) AC 4321 Non-stop Embraer EMB 175 (E7W) 1:52 Effective 2026-01-07 through 2026-01-13 Codeshare flight, operated by United Airlines.(UA 4070)
Wed,Thu 14:20 Houston George Bush (IAH) B 16:12 Birmingham (BHM) AC 4321 Non-stop Embraer EMB 175 (E7W) 1:52 Effective 2026-01-15 through 2026-01-21 Codeshare flight, operated by United Airlines.(UA 4070)
Mon,Wed,Fri 14:20 Houston George Bush (IAH) B 16:12 Birmingham (BHM) AC 4321 Non-stop Embraer EMB 175 (E7W) 1:52 Effective 2026-01-23 through 2026-01-28 Codeshare flight, operated by United Airlines.(UA 4070)
Mon,Tue,Thu 14:20 Houston George Bush (IAH) B 16:12 Birmingham (BHM) AC 4321 Non-stop Embraer EMB 175 (E7W) 1:52 Effective 2026-02-03 through 2026-02-09 Codeshare flight, operated by United Airlines.(UA 4070)
Mon,Thu,Fri 14:20 Houston George Bush (IAH) B 16:12 Birmingham (BHM) AC 4321 Non-stop Embraer EMB 175 (E7W) 1:52 Effective 2026-02-12 through 2026-03-06 Codeshare flight, operated by United Airlines.(UA 4070)
Mon,Tue,Fri-Sun 14:20 Houston George Bush (IAH) B 16:12 Birmingham (BHM) AC 4321 Non-stop Embraer EMB 175 (E7W) 1:52 Effective 2026-03-07 through 2026-03-17 Codeshare flight, operated by United Airlines.(UA 4070)
Wed 14:20 Houston George Bush (IAH) B 16:13 Birmingham (BHM) AC 4321 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:53 Effective 2026-03-11 through 2026-03-25 Codeshare flight, operated by United Airlines.(UA 4316)
Mon,Tue,Thu,Sat,Sun 14:20 Houston George Bush (IAH) B 16:12 Birmingham (BHM) AC 4321 Non-stop Embraer EMB 175 (E7W) 1:52 Effective 2026-03-19 through 2026-03-26 Codeshare flight, operated by United Airlines.(UA 4070)
Fri,Sat 14:20 Houston George Bush (IAH) B 16:12 Birmingham (BHM) AC 4321 Non-stop Embraer EMB 175 (E7W) 1:52 Effective 2026-03-27 through 2026-03-28 Codeshare flight, operated by United Airlines.(UA 4070)
Daily 14:20 Houston George Bush (IAH) B 16:13 Birmingham (BHM) AC 4321 Non-stop Embraer EMB 175 (E7W) 1:53 Effective 2026-03-29 through 2026-04-07 Codeshare flight, operated by United Airlines.(UA 4070)
Daily 14:20 Houston George Bush (IAH) B 16:13 Birmingham (BHM) AC 4321 Non-stop Embraer EMB 175 (E7W) 1:53 Effective 2026-04-09 through 2026-04-15 Codeshare flight, operated by United Airlines.(UA 4070)
Daily 14:20 Houston George Bush (IAH) B 16:13 Birmingham (BHM) AC 4321 Non-stop Embraer EMB 175 (E7W) 1:53 Effective 2026-04-17 through 2026-04-23 Codeshare flight, operated by United Airlines.(UA 4070)
Mon-Wed,Sat,Sun 14:20 Houston George Bush (IAH) B 16:13 Birmingham (BHM) AC 4321 Non-stop Embraer EMB 175 (E7W) 1:53 Effective 2026-04-25 through 2026-04-29 Codeshare flight, operated by United Airlines.(UA 4070)
Daily 14:20 Houston George Bush (IAH) B 16:05 Birmingham (BHM) AC 4321 Non-stop Embraer EMB 175 (E7W) 1:45 Effective 2026-04-30 through 2026-05-20 Codeshare flight, operated by United Airlines.(UA 4070)
Daily 14:20 Houston George Bush (IAH) B 16:05 Birmingham (BHM) AC 4321 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:45 Effective from 2026-05-21 Codeshare flight, operated by United Airlines.(UA 4256)
Wed,Sun 14:22 Houston George Bush (IAH) B 16:14 Birmingham (BHM) AC 4321 Non-stop Embraer EMB 175 (E7W) 1:52 Effective 2026-02-15 through 2026-03-04 Codeshare flight, operated by United Airlines.(UA 4070)
Mon,Tue,Thu,Sat 14:25 Houston George Bush (IAH) B 16:13 Birmingham (BHM) AC 4321 Non-stop Embraer EMB 175 (E7W) 1:48 Valid until 2026-01-05 Codeshare flight, operated by United Airlines.(UA 4071)
Sat 16:20 Houston George Bush (IAH) B 18:12 Birmingham (BHM) AC 4321 Non-stop Embraer EMB 175 (E7W) 1:52 Effective 2026-02-14 through 2026-02-28 Codeshare flight, operated by United Airlines.(UA 4070)

AC 4321 is a domestic flight departing from the Houston George Bush airport (IAH) and arriving at Birmingham airport (BHM).
The flight distance is 561 miles, or 902 km.
The timezone of both the departure and the arrival airports is UTC-6 . Current time at both airports is (loading...).
For direct flights, the flight time varies between 1:45 and 1:56.

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Air Canada flight AC 4321:
Houston George Bush - Birmingham

FLIGHT SCHEDULE

Direct Codeshare Flights:

Air Canada AC4321

12:05

Houston George Bush (IAH) B

13:58

Birmingham (BHM)

Operates only on 2026-03-12

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 4256)

Duration: 1:53, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Direct Codeshare Flights:

Air Canada AC4321

12:05

Houston George Bush (IAH) B

13:58

Birmingham (BHM)

Operates only on 2026-03-20

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 4256)

Duration: 1:53, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Direct Codeshare Flights:

Air Canada AC4321

12:10

Houston George Bush (IAH) B

14:05

Birmingham (BHM)

Valid until 2026-01-06

Mon
-

Tue

Wed

Thu
-

Fri

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 4256)

Duration: 1:55, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Direct Codeshare Flights:

Air Canada AC4321

12:10

Houston George Bush (IAH) B

14:02

Birmingham (BHM)

Effective 2026-01-08 through 2026-01-14

Mon

Tue
-

Wed

Thu

Fri

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 5503)

Duration: 1:52, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

Air Canada AC4321

12:10

Houston George Bush (IAH) B

14:02

Birmingham (BHM)

Effective 2026-01-16 through 2026-01-22

Mon

Tue

Wed
-

Thu

Fri

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 5503)

Duration: 1:52, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

Air Canada AC4321

12:10

Houston George Bush (IAH) B

14:02

Birmingham (BHM)

Effective 2026-01-24 through 2026-01-30

Mon
-

Tue

Wed
-

Thu

Fri

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 5503)

Duration: 1:52, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

Air Canada AC4321

12:10

Houston George Bush (IAH) B

14:02

Birmingham (BHM)

Effective 2026-02-02 through 2026-02-06

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 5503)

Duration: 1:52, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

Air Canada AC4321

12:10

Houston George Bush (IAH) B

14:02

Birmingham (BHM)

Effective 2026-02-10 through 2026-02-11

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 5503)

Duration: 1:52, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

Air Canada AC4321

12:10

Houston George Bush (IAH) B

14:06

Birmingham (BHM)

Operates only on 2026-04-08

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 4256)

Duration: 1:56, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Direct Codeshare Flights:

Air Canada AC4321

12:10

Houston George Bush (IAH) B

14:06

Birmingham (BHM)

Operates only on 2026-04-16

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 4256)

Duration: 1:56, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Direct Codeshare Flights:

Air Canada AC4321

12:10

Houston George Bush (IAH) B

14:06

Birmingham (BHM)

Operates only on 2026-04-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 4256)

Duration: 1:56, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Direct Codeshare Flights:

Air Canada AC4321

12:25

Houston George Bush (IAH) B

14:17

Birmingham (BHM)

Operates only on 2026-02-08

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 5503)

Duration: 1:52, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

Air Canada AC4321

14:20

Houston George Bush (IAH) B

16:12

Birmingham (BHM)

Effective 2026-01-07 through 2026-01-13

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 4070)

Duration: 1:52, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

Air Canada AC4321

14:20

Houston George Bush (IAH) B

16:12

Birmingham (BHM)

Effective 2026-01-15 through 2026-01-21

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 4070)

Duration: 1:52, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

Air Canada AC4321

14:20

Houston George Bush (IAH) B

16:12

Birmingham (BHM)

Effective 2026-01-23 through 2026-01-28

Mon

Tue
-

Wed

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 4070)

Duration: 1:52, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

Air Canada AC4321

14:20

Houston George Bush (IAH) B

16:12

Birmingham (BHM)

Effective 2026-02-03 through 2026-02-09

Mon

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 4070)

Duration: 1:52, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

Air Canada AC4321

14:20

Houston George Bush (IAH) B

16:12

Birmingham (BHM)

Effective 2026-02-12 through 2026-03-06

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 4070)

Duration: 1:52, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

Air Canada AC4321

14:20

Houston George Bush (IAH) B

16:12

Birmingham (BHM)

Effective 2026-03-07 through 2026-03-17

Mon

Tue

Wed
-

Thu
-

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4070)

Duration: 1:52, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

Air Canada AC4321

14:20

Houston George Bush (IAH) B

16:13

Birmingham (BHM)

Effective 2026-03-11 through 2026-03-25

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 4316)

Duration: 1:53, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Direct Codeshare Flights:

Air Canada AC4321

14:20

Houston George Bush (IAH) B

16:12

Birmingham (BHM)

Effective 2026-03-19 through 2026-03-26

Mon

Tue

Wed
-

Thu

Fri
-

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4070)

Duration: 1:52, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

Air Canada AC4321

14:20

Houston George Bush (IAH) B

16:12

Birmingham (BHM)

Effective 2026-03-27 through 2026-03-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 4070)

Duration: 1:52, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

Air Canada AC4321

14:20

Houston George Bush (IAH) B

16:13

Birmingham (BHM)

Effective 2026-03-29 through 2026-04-07

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4070)

Duration: 1:53, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

Air Canada AC4321

14:20

Houston George Bush (IAH) B

16:13

Birmingham (BHM)

Effective 2026-04-09 through 2026-04-15

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4070)

Duration: 1:53, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

Air Canada AC4321

14:20

Houston George Bush (IAH) B

16:13

Birmingham (BHM)

Effective 2026-04-17 through 2026-04-23

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4070)

Duration: 1:53, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

Air Canada AC4321

14:20

Houston George Bush (IAH) B

16:13

Birmingham (BHM)

Effective 2026-04-25 through 2026-04-29

Mon

Tue

Wed

Thu
-

Fri
-

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4070)

Duration: 1:53, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

Air Canada AC4321

14:20

Houston George Bush (IAH) B

16:05

Birmingham (BHM)

Effective 2026-04-30 through 2026-05-20

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4070)

Duration: 1:45, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

Air Canada AC4321

14:20

Houston George Bush (IAH) B

16:05

Birmingham (BHM)

Effective from 2026-05-21

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4256)

Duration: 1:45, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)

Direct Codeshare Flights:

Air Canada AC4321

14:22

Houston George Bush (IAH) B

16:14

Birmingham (BHM)

Effective 2026-02-15 through 2026-03-04

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 4070)

Duration: 1:52, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

Air Canada AC4321

14:25

Houston George Bush (IAH) B

16:13

Birmingham (BHM)

Valid until 2026-01-05

Mon

Tue

Wed
-

Thu

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 4071)

Duration: 1:48, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

Air Canada AC4321

16:20

Houston George Bush (IAH) B

18:12

Birmingham (BHM)

Effective 2026-02-14 through 2026-02-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 4070)

Duration: 1:52, non-stop
Embraer EMB 175 (E7W)

AC 4321 is a domestic flight departing from the Houston George Bush airport (IAH) and arriving at Birmingham airport (BHM).
The flight distance is 561 miles, or 902 km.
The timezone of both the departure and the arrival airports is UTC-6 . Current time at both airports is (loading...).
For direct flights, the flight time varies between 1:45 and 1:56.

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All IAH-BHM flights

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