Copa Airlines flight CM 1635: Houston George Bush - Oklahoma City

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FLIGHT SCHEDULE
Direct Codeshare Flights:
Tue 14:35 Houston George Bush (IAH) B 16:12 Oklahoma City (OKC)
CM 1635 Non-stop Embraer EMB 175 (E7W) 1:37 Operates only on 2026-01-06
Codeshare flight, operated by United Airlines.(UA 6334)
Mon-Wed,Fri,Sun 14:35 Houston George Bush (IAH) B 16:13 Oklahoma City (OKC)
CM 1635 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:38 Effective 2026-01-07 through 2026-01-14
Codeshare flight, operated by United Airlines.(UA 4287)
Mon-Thu 14:35 Houston George Bush (IAH) B 16:13 Oklahoma City (OKC)
CM 1635 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:38 Effective 2026-01-15 through 2026-01-22
Codeshare flight, operated by United Airlines.(UA 4287)
Mon-Wed,Fri,Sun 14:35 Houston George Bush (IAH) B 16:13 Oklahoma City (OKC)
CM 1635 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:38 Effective 2026-01-23 through 2026-02-03
Codeshare flight, operated by United Airlines.(UA 4287)
Mon-Fri,Sun 14:35 Houston George Bush (IAH) B 16:13 Oklahoma City (OKC)
CM 1635 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:38 Effective 2026-02-05 through 2026-02-11
Codeshare flight, operated by United Airlines.(UA 4287)
Mon,Wed-Fri,Sun 16:25 Houston George Bush (IAH) B 18:02 Oklahoma City (OKC)
CM 1635 Non-stop Embraer EMB 175 (E7W) 1:37 Effective 2026-02-12 through 2026-03-04
Codeshare flight, operated by United Airlines.(UA 6334)
Mon,Wed-Sun 16:28 Houston George Bush (IAH) B 18:06 Oklahoma City (OKC)
CM 1635 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:38 Effective 2026-03-05 through 2026-03-28
Codeshare flight, operated by United Airlines.(UA 4269)
Tue 16:28 Houston George Bush (IAH) B 18:05 Oklahoma City (OKC)
CM 1635 Non-stop Embraer EMB 175 (E7W) 1:37 Effective 2026-03-10 through 2026-03-24
Codeshare flight, operated by United Airlines.(UA 5320)
Daily 16:28 Houston George Bush (IAH) B 18:05 Oklahoma City (OKC)
CM 1635 Non-stop Embraer EMB 175 (E7W) 1:37 Effective 2026-03-29 through 2026-04-29
Codeshare flight, operated by United Airlines.(UA 5320)
Daily 16:35 Houston George Bush (IAH) B 18:12 Oklahoma City (OKC)
CM 1635 Non-stop Embraer EMB 175 (E7W) 1:37 Effective 2026-04-30 through 2026-05-20
Codeshare flight, operated by United Airlines.(UA 6334)
Thu 16:40 Houston George Bush (IAH) B 18:19 Oklahoma City (OKC)
CM 1635 Non-stop Embraer EMB 175 (E7W) 1:39 Operates only on 2026-01-08
Codeshare flight, operated by United Airlines.(UA 5278)
Fri 16:40 Houston George Bush (IAH) B 18:19 Oklahoma City (OKC)
CM 1635 Non-stop Embraer EMB 175 (E7W) 1:39 Operates only on 2026-01-16
Codeshare flight, operated by United Airlines.(UA 5278)
Thu 16:40 Houston George Bush (IAH) B 18:19 Oklahoma City (OKC)
CM 1635 Non-stop Embraer EMB 175 (E7W) 1:39 Operates only on 2026-01-29
Codeshare flight, operated by United Airlines.(UA 5278)
Daily 16:40 Houston George Bush (IAH) B 18:11 Oklahoma City (OKC)
CM 1635 Non-stop Embraer EMB 175 (E7W) 1:31 Effective 2026-05-21 through 2026-10-24
Codeshare flight, operated by United Airlines.(UA 6334)
Daily 16:40 Houston George Bush (IAH) B 18:11 Oklahoma City (OKC)
CM 1635 Non-stop Embraer EMB 175 (E7W) 1:31 Effective from 2026-10-26
Codeshare flight, operated by United Airlines.(UA 6334)
Tue 16:43 Houston George Bush (IAH) B 18:20 Oklahoma City (OKC)
CM 1635 Non-stop Embraer EMB 175 (E7W) 1:37 Effective 2026-02-17 through 2026-03-03
Codeshare flight, operated by United Airlines.(UA 6334)
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Copa Airlines flight CM 1635:
Houston George Bush - Oklahoma City
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Copa Airlines CM1635
14:35
Houston George Bush (IAH) B

16:12
Oklahoma City (OKC)
Operates only on 2026-01-06
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 6334)
Duration: 1:37, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Copa Airlines CM1635
14:35
Houston George Bush (IAH) B

16:13
Oklahoma City (OKC)
Effective 2026-01-07 through 2026-01-14
Mon
Tue
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 4287)
Duration: 1:38, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Codeshare Flights:
Copa Airlines CM1635
14:35
Houston George Bush (IAH) B

16:13
Oklahoma City (OKC)
Effective 2026-01-15 through 2026-01-22
Mon
Tue
Wed
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 4287)
Duration: 1:38, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Codeshare Flights:
Copa Airlines CM1635
14:35
Houston George Bush (IAH) B

16:13
Oklahoma City (OKC)
Effective 2026-01-23 through 2026-02-03
Mon
Tue
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 4287)
Duration: 1:38, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Codeshare Flights:
Copa Airlines CM1635
14:35
Houston George Bush (IAH) B

16:13
Oklahoma City (OKC)
Effective 2026-02-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 4287)
Duration: 1:38, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Codeshare Flights:
Copa Airlines CM1635
16:25
Houston George Bush (IAH) B

18:02
Oklahoma City (OKC)
Effective 2026-02-12 through 2026-03-04
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 6334)
Duration: 1:37, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Copa Airlines CM1635
16:28
Houston George Bush (IAH) B

18:06
Oklahoma City (OKC)
Effective 2026-03-05 through 2026-03-28
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4269)
Duration: 1:38, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Codeshare Flights:
Copa Airlines CM1635
16:28
Houston George Bush (IAH) B

18:05
Oklahoma City (OKC)
Effective 2026-03-10 through 2026-03-24
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 5320)
Duration: 1:37, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Copa Airlines CM1635
16:28
Houston George Bush (IAH) B

18:05
Oklahoma City (OKC)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5320)
Duration: 1:37, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Copa Airlines CM1635
16:35
Houston George Bush (IAH) B

18:12
Oklahoma City (OKC)
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 6334)
Duration: 1:37, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Copa Airlines CM1635
16:40
Houston George Bush (IAH) B

18:19
Oklahoma City (OKC)
Operates only on 2026-01-08
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 5278)
Duration: 1:39, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Copa Airlines CM1635
16:40
Houston George Bush (IAH) B

18:19
Oklahoma City (OKC)
Operates only on 2026-01-16
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 5278)
Duration: 1:39, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Copa Airlines CM1635
16:40
Houston George Bush (IAH) B

18:19
Oklahoma City (OKC)
Operates only on 2026-01-29
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 5278)
Duration: 1:39, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Copa Airlines CM1635
16:40
Houston George Bush (IAH) B

18:11
Oklahoma City (OKC)
Effective 2026-05-21 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 6334)
Duration: 1:31, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Copa Airlines CM1635
16:40
Houston George Bush (IAH) B

18:11
Oklahoma City (OKC)
Effective from 2026-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 6334)
Duration: 1:31, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Copa Airlines CM1635
16:43
Houston George Bush (IAH) B

18:20
Oklahoma City (OKC)
Effective 2026-02-17 through 2026-03-03
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 6334)
Duration: 1:37, non-stop
Embraer EMB 175 (E7W)
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Parallax here IAH-OKC
  • CM 1635 is a domestic flight departing from the Houston George Bush airport (IAH) and arriving at Oklahoma City airport (OKC).
  • The flight distance is 396 miles, or 637 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 1:31 and 1:39.
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