Air Canada
flight
AC 4643:
Houston George Bush - Amarillo
Houston George Bush - Amarillo
FLIGHT SCHEDULE
Direct Codeshare Flights:
Air Canada AC4643
Effective 2026-01-06 through 2026-01-17
Mon
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Tue
Wed
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Thu
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Fri
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Sat
Sun
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Codeshare flight, operated by United Airlines.
(UA 5293)
Duration: 2:01, non-stop Canadair CRJ (CRJ)
Direct Codeshare Flights:
Air Canada AC4643
Effective 2026-01-07 through 2026-01-16
Mon
Tue
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Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 4821)
Duration: 2:01, non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Codeshare Flights:
Air Canada AC4643
Effective 2026-01-18 through 2026-01-24
Mon
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Tue
Wed
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Thu
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Fri
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-
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 5293)
Duration: 2:01, non-stop Canadair CRJ (CRJ)
Direct Codeshare Flights:
Air Canada AC4643
Effective 2026-01-19 through 2026-02-02
Mon
Tue
-
-
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 4821)
Duration: 2:01, non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Codeshare Flights:
Air Canada AC4643
Effective 2026-01-27 through 2026-02-10
Mon
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Tue
Wed
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Thu
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Fri
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-
Sat
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 5293)
Duration: 2:01, non-stop Canadair CRJ (CRJ)
Direct Codeshare Flights:
Air Canada AC4643
Effective 2026-02-05 through 2026-02-11
Mon
Tue
-
-
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 4821)
Duration: 2:01, non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Codeshare Flights:
Air Canada AC4643
Effective 2026-02-12 through 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 4821)
Duration: 1:59, non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Codeshare Flights:
Air Canada AC4643
Effective 2026-03-08 through 2026-03-28
Mon
Tue
-
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 4821)
Duration: 1:59, non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Codeshare Flights:
Air Canada AC4643
Effective from 2026-03-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 4821)
Duration: 1:50, non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Codeshare Flights:
Air Canada AC4643
Operates only on 2026-02-04
Mon
-
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Tue
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Wed
Thu
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-
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 4821)
Duration: 2:01, non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Codeshare Flights:
Air Canada AC4643
Effective 2026-03-10 through 2026-03-24
Mon
-
-
Tue
Wed
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Thu
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Fri
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Sat
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Sun
-
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Codeshare flight, operated by United Airlines.
(UA 4821)
Duration: 2:05, non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
- AC 4643 is a domestic flight departing from the Houston George Bush airport (IAH) and arriving at Amarillo airport (AMA).
- The flight distance is 518 miles, or 834 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 1:50 and 2:05.