WestJet flight WS 1543: Houston George Bush - Calgary

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FLIGHT SCHEDULE
Direct Flights:
Daily 15:00 Houston George Bush (IAH) A 18:15 Calgary (YYC) WS 1543 Non-stop Boeing 737 MAX 8 (7M8) 4:15 Effective 2026-04-26 through 2026-10-24
Mon-Thu,Sun 18:20 Houston George Bush (IAH) A 21:51 Calgary (YYC) WS 1543 Non-stop Boeing 737-800 (73H) 4:31 Valid until 2026-01-05
Tue,Thu,Fri 18:20 Houston George Bush (IAH) A 21:51 Calgary (YYC) WS 1543 Non-stop Boeing 737-700 (73W) 4:31 Effective 2026-01-02 through 2026-01-09
Mon,Wed 18:20 Houston George Bush (IAH) A 21:51 Calgary (YYC) WS 1543 Non-stop Boeing 737-800 (73H) 4:31 Effective 2026-01-07 through 2026-01-12
Tue,Thu,Fri,Sun 18:20 Houston George Bush (IAH) A 21:51 Calgary (YYC) WS 1543 Non-stop Boeing 737-700 (73W) 4:31 Effective 2026-01-11 through 2026-01-25
Wed 18:20 Houston George Bush (IAH) A 21:51 Calgary (YYC) WS 1543 Non-stop Boeing 737 MAX 8 (7M8) 4:31 Operates only on 2026-01-14
Mon,Wed 18:20 Houston George Bush (IAH) A 21:51 Calgary (YYC) WS 1543 Non-stop Boeing 737-800 (73H) 4:31 Effective 2026-01-19 through 2026-01-21
Mon,Tue,Thu,Fri 18:20 Houston George Bush (IAH) A 21:51 Calgary (YYC) WS 1543 Non-stop Boeing 737-700 (73W) 4:31 Effective 2026-01-26 through 2026-01-30
Wed 18:20 Houston George Bush (IAH) A 21:51 Calgary (YYC) WS 1543 Non-stop Boeing 737-800 (73H) 4:31 Operates only on 2026-01-28
Mon,Wed,Sun 18:20 Houston George Bush (IAH) A 21:45 Calgary (YYC) WS 1543 Non-stop Boeing 737-800 (73H) 4:25 Effective 2026-02-01 through 2026-02-04
Tue,Thu,Fri,Sun 18:20 Houston George Bush (IAH) A 21:45 Calgary (YYC) WS 1543 Non-stop Boeing 737-700 (73W) 4:25 Effective 2026-02-03 through 2026-02-17
Mon 18:20 Houston George Bush (IAH) A 21:45 Calgary (YYC) WS 1543 Non-stop Boeing 737 MAX 8 (7M8) 4:25 Effective 2026-02-09 through 2026-03-09
Wed 18:20 Houston George Bush (IAH) A 21:45 Calgary (YYC) WS 1543 Non-stop Boeing 737-800 (73H) 4:25 Operates only on 2026-02-11
Tue-Fri,Sun 18:20 Houston George Bush (IAH) A 21:45 Calgary (YYC) WS 1543 Non-stop Boeing 737-700 (73W) 4:25 Effective 2026-02-18 through 2026-02-24
Wed 18:20 Houston George Bush (IAH) A 21:45 Calgary (YYC) WS 1543 Non-stop Boeing 737-800 (73H) 4:25 Operates only on 2026-02-25
Tue-Fri,Sun 18:20 Houston George Bush (IAH) A 21:45 Calgary (YYC) WS 1543 Non-stop Boeing 737-700 (73W) 4:25 Effective 2026-02-26 through 2026-03-10
Wed 18:20 Houston George Bush (IAH) A 21:45 Calgary (YYC) WS 1543 Non-stop Boeing 737 MAX 8 (7M8) 4:25 Operates only on 2026-03-11
Tue,Thu,Fri,Sun 18:20 Houston George Bush (IAH) A 21:45 Calgary (YYC) WS 1543 Non-stop Boeing 737-700 (73W) 4:25 Effective 2026-03-12 through 2026-03-31
Mon,Wed 18:20 Houston George Bush (IAH) A 21:45 Calgary (YYC) WS 1543 Non-stop Boeing 737-800 (73H) 4:25 Effective 2026-03-16 through 2026-03-18
Mon 18:20 Houston George Bush (IAH) A 21:45 Calgary (YYC) WS 1543 Non-stop Boeing 737 MAX 8 (7M8) 4:25 Effective 2026-03-23 through 2026-04-20
Wed 18:20 Houston George Bush (IAH) A 21:45 Calgary (YYC) WS 1543 Non-stop Boeing 737-800 (73H) 4:25 Operates only on 2026-03-25
Tue-Fri,Sun 18:20 Houston George Bush (IAH) A 21:45 Calgary (YYC) WS 1543 Non-stop Boeing 737-700 (73W) 4:25 Effective 2026-04-01 through 2026-04-07
Wed 18:20 Houston George Bush (IAH) A 21:45 Calgary (YYC) WS 1543 Non-stop Boeing 737-800 (73H) 4:25 Effective 2026-04-08 through 2026-04-22
Tue,Thu,Fri,Sun 18:20 Houston George Bush (IAH) A 21:45 Calgary (YYC) WS 1543 Non-stop Boeing 737-700 (73W) 4:25 Effective 2026-04-09 through 2026-04-24
Mon-Fri,Sun 18:20 Houston George Bush (IAH) A 21:51 Calgary (YYC) WS 1543 Non-stop Boeing 737-700 (73W) 4:31 Effective from 2026-10-25

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Parallax here IAH-YYC

WS 1543 is an international flight departing from Houston George Bush airport, United States (IAH) and arriving at Calgary airport, Canada (YYC).
The flight distance is 1746 miles, or 2810 km.
The timezone of the departure airport is UTC-6 , and the timezone of the arrival airport is UTC-7 . 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 4:15 and 4:31.

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WestJet flight WS 1543:
Houston George Bush - Calgary

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FLIGHT SCHEDULE

Direct Flights:

WestJet WS1543

15:00

Houston George Bush (IAH) A

18:15

Calgary (YYC)

Effective 2026-04-26 through 2026-10-24

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:15, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

WestJet WS1543

18:20

Houston George Bush (IAH) A

21:51

Calgary (YYC)

Valid until 2026-01-05

Mon

Tue

Wed

Thu

Fri
-

Sat
-

Sun

Duration: 4:31, non-stop
Boeing 737-800 (73H)

Direct Flights:

WestJet WS1543

18:20

Houston George Bush (IAH) A

21:51

Calgary (YYC)

Effective 2026-01-02 through 2026-01-09

Mon
-

Tue

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 4:31, non-stop
Boeing 737-700 (73W)

Direct Flights:

WestJet WS1543

18:20

Houston George Bush (IAH) A

21:51

Calgary (YYC)

Effective 2026-01-07 through 2026-01-12

Mon

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:31, non-stop
Boeing 737-800 (73H)

Direct Flights:

WestJet WS1543

18:20

Houston George Bush (IAH) A

21:51

Calgary (YYC)

Effective 2026-01-11 through 2026-01-25

Mon
-

Tue

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 4:31, non-stop
Boeing 737-700 (73W)

Direct Flights:

WestJet WS1543

18:20

Houston George Bush (IAH) A

21:51

Calgary (YYC)

Operates only on 2026-01-14

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:31, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

WestJet WS1543

18:20

Houston George Bush (IAH) A

21:51

Calgary (YYC)

Effective 2026-01-19 through 2026-01-21

Mon

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:31, non-stop
Boeing 737-800 (73H)

Direct Flights:

WestJet WS1543

18:20

Houston George Bush (IAH) A

21:51

Calgary (YYC)

Effective 2026-01-26 through 2026-01-30

Mon

Tue

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 4:31, non-stop
Boeing 737-700 (73W)

Direct Flights:

WestJet WS1543

18:20

Houston George Bush (IAH) A

21:51

Calgary (YYC)

Operates only on 2026-01-28

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:31, non-stop
Boeing 737-800 (73H)

Direct Flights:

WestJet WS1543

18:20

Houston George Bush (IAH) A

21:45

Calgary (YYC)

Effective 2026-02-01 through 2026-02-04

Mon

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:25, non-stop
Boeing 737-800 (73H)

Direct Flights:

WestJet WS1543

18:20

Houston George Bush (IAH) A

21:45

Calgary (YYC)

Effective 2026-02-03 through 2026-02-17

Mon
-

Tue

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 4:25, non-stop
Boeing 737-700 (73W)

Direct Flights:

WestJet WS1543

18:20

Houston George Bush (IAH) A

21:45

Calgary (YYC)

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

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

WestJet WS1543

18:20

Houston George Bush (IAH) A

21:45

Calgary (YYC)

Operates only on 2026-02-11

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:25, non-stop
Boeing 737-800 (73H)

Direct Flights:

WestJet WS1543

18:20

Houston George Bush (IAH) A

21:45

Calgary (YYC)

Effective 2026-02-18 through 2026-02-24

Mon
-

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 4:25, non-stop
Boeing 737-700 (73W)

Direct Flights:

WestJet WS1543

18:20

Houston George Bush (IAH) A

21:45

Calgary (YYC)

Operates only on 2026-02-25

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:25, non-stop
Boeing 737-800 (73H)

Direct Flights:

WestJet WS1543

18:20

Houston George Bush (IAH) A

21:45

Calgary (YYC)

Effective 2026-02-26 through 2026-03-10

Mon
-

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 4:25, non-stop
Boeing 737-700 (73W)

Direct Flights:

WestJet WS1543

18:20

Houston George Bush (IAH) A

21:45

Calgary (YYC)

Operates only on 2026-03-11

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

WestJet WS1543

18:20

Houston George Bush (IAH) A

21:45

Calgary (YYC)

Effective 2026-03-12 through 2026-03-31

Mon
-

Tue

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 4:25, non-stop
Boeing 737-700 (73W)

Direct Flights:

WestJet WS1543

18:20

Houston George Bush (IAH) A

21:45

Calgary (YYC)

Effective 2026-03-16 through 2026-03-18

Mon

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:25, non-stop
Boeing 737-800 (73H)

Direct Flights:

WestJet WS1543

18:20

Houston George Bush (IAH) A

21:45

Calgary (YYC)

Effective 2026-03-23 through 2026-04-20

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

WestJet WS1543

18:20

Houston George Bush (IAH) A

21:45

Calgary (YYC)

Operates only on 2026-03-25

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:25, non-stop
Boeing 737-800 (73H)

Direct Flights:

WestJet WS1543

18:20

Houston George Bush (IAH) A

21:45

Calgary (YYC)

Effective 2026-04-01 through 2026-04-07

Mon
-

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 4:25, non-stop
Boeing 737-700 (73W)

Direct Flights:

WestJet WS1543

18:20

Houston George Bush (IAH) A

21:45

Calgary (YYC)

Effective 2026-04-08 through 2026-04-22

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:25, non-stop
Boeing 737-800 (73H)

Direct Flights:

WestJet WS1543

18:20

Houston George Bush (IAH) A

21:45

Calgary (YYC)

Effective 2026-04-09 through 2026-04-24

Mon
-

Tue

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 4:25, non-stop
Boeing 737-700 (73W)

Direct Flights:

WestJet WS1543

18:20

Houston George Bush (IAH) A

21:51

Calgary (YYC)

Effective from 2026-10-25

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 4:31, non-stop
Boeing 737-700 (73W)

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Parallax here IAH-YYC

WS 1543 is an international flight departing from Houston George Bush airport, United States (IAH) and arriving at Calgary airport, Canada (YYC).
The flight distance is 1746 miles, or 2810 km.
The timezone of the departure airport is UTC-6 , and the timezone of the arrival airport is UTC-7 . 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 4:15 and 4:31.

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