All airlines flying from Oklahoma City (OKC) to Houston George Bush (IAH).

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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon-Wed 13:41 Oklahoma City (OKC) 15:25 Houston George Bush (IAH) B
Lufthansa LH 8674 Non-stop Embraer EMB 175 (E7W) 1:44 Effective 2026-03-02 through 2026-03-04
Codeshare flight, operated by United Airlines.(UA 5531)
Daily 13:45 Oklahoma City (OKC) 15:24 Houston George Bush (IAH) B
Lufthansa LH 8674 Non-stop Embraer EMB 175 (E7W) 1:39 Effective 2026-01-06 through 2026-01-12
Codeshare flight, operated by United Airlines.(UA 5531)
Mon,Thu-Sun 13:45 Oklahoma City (OKC) 15:24 Houston George Bush (IAH) B
Lufthansa LH 8674 Non-stop Embraer EMB 175 (E7W) 1:39 Effective 2026-01-15 through 2026-02-08
Codeshare flight, operated by United Airlines.(UA 5531)
Tue 13:45 Oklahoma City (OKC) 15:24 Houston George Bush (IAH) B
Lufthansa LH 8674 Non-stop Embraer EMB 175 (E7W) 1:39 Operates only on 2026-02-10
Codeshare flight, operated by United Airlines.(UA 5531)
Mon,Tue,Thu-Sun 13:49 Oklahoma City (OKC) 15:25 Houston George Bush (IAH) B
Lufthansa LH 8674 Non-stop Embraer EMB 175 (E7W) 1:36 Valid until 2026-01-05
Codeshare flight, operated by United Airlines.(UA 5531)
Daily 13:50 Oklahoma City (OKC) 15:34 Houston George Bush (IAH) B
Lufthansa LH 8674 Non-stop Embraer EMB 175 (E7W) 1:44 Effective 2026-03-05 through 2026-03-28
Codeshare flight, operated by United Airlines.(UA 5531)
Daily 14:07 Oklahoma City (OKC) 15:40 Houston George Bush (IAH) B
Lufthansa LH 8674 Non-stop Embraer EMB 175 (E7W) 1:33 Effective from 2026-10-25
Codeshare flight, operated by United Airlines.(UA 5531)
Tue 15:30 Oklahoma City (OKC) 17:08 Houston George Bush (IAH) B
Lufthansa LH 8714 Non-stop Embraer EMB 175 (E7W) 1:38 Effective 2026-01-06 through 2026-02-10
Codeshare flight, operated by United Airlines.(UA 6234Z)
Mon,Wed-Sat 15:30 Oklahoma City (OKC) 17:09 Houston George Bush (IAH) B
Lufthansa LH 8714 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:39 Effective 2026-01-07 through 2026-02-11
Codeshare flight, operated by United Airlines.(UA 4242)
Sun 15:30 Oklahoma City (OKC) 17:05 Houston George Bush (IAH) C
Lufthansa LH 8714 Non-stop Boeing 737 MAX 8 (7M8) 1:35 Effective 2026-01-11 through 2026-02-08
Codeshare flight, operated by United Airlines.(UA 2464)
Daily 15:38 Oklahoma City (OKC) 17:21 Houston George Bush (IAH) B
Lufthansa LH 8714 Non-stop Embraer EMB 175 (E7W) 1:43 Effective 2026-03-29 through 2026-04-29
Codeshare flight, operated by United Airlines.(UA 6223)
Daily 15:40 Oklahoma City (OKC) 17:18 Houston George Bush (IAH) B
Lufthansa LH 8714 Non-stop Embraer EMB 175 (E7W) 1:38 Effective 2026-03-05 through 2026-03-28
Codeshare flight, operated by United Airlines.(UA 6223)
Daily 15:40 Oklahoma City (OKC) 17:23 Houston George Bush (IAH) B
Lufthansa LH 8714 Non-stop Embraer EMB 175 (E7W) 1:43 Effective 2026-04-30 through 2026-05-20
Codeshare flight, operated by United Airlines.(UA 6223)
Mon-Fri,Sun 15:42 Oklahoma City (OKC) 17:20 Houston George Bush (IAH) B
Lufthansa LH 8714 Non-stop Embraer EMB 175 (E7W) 1:38 Effective 2026-02-12 through 2026-03-04
Codeshare flight, operated by United Airlines.(UA 6234)
Sat 15:42 Oklahoma City (OKC) 17:21 Houston George Bush (IAH) B
Lufthansa LH 8714 Non-stop Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ) 1:39 Effective 2026-02-14 through 2026-02-28
Codeshare flight, operated by United Airlines.(UA 4316)
Mon-Wed,Fri-Sun 15:45 Oklahoma City (OKC) 17:19 Houston George Bush (IAH) B
Lufthansa LH 8714 Non-stop Embraer EMB 175 (E7W) 1:34 Valid until 2026-01-05
Codeshare flight, operated by United Airlines.(UA 6219)
Daily 15:45 Oklahoma City (OKC) 17:18 Houston George Bush (IAH) B
Lufthansa LH 8714 Non-stop Embraer EMB 175 (E7W) 1:33 Effective 2026-05-21 through 2026-10-23
Codeshare flight, operated by United Airlines.(UA 5567)
Daily 17:10 Oklahoma City (OKC) 18:41 Houston George Bush (IAH) B
Lufthansa LH 8714 Non-stop Embraer EMB 175 (E7W) 1:31 Effective from 2026-10-24
Codeshare flight, operated by United Airlines.(UA 5918)
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All airlines flying from Oklahoma City (OKC) to Houston George Bush (IAH).
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Lufthansa LH8674
13:41
Oklahoma City (OKC)

15:25
Houston George Bush (IAH) B
Effective 2026-03-02 through 2026-03-04
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 5531)
Duration: 1:44, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Lufthansa LH8674
13:45
Oklahoma City (OKC)

15:24
Houston George Bush (IAH) B
Effective 2026-01-06 through 2026-01-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5531)
Duration: 1:39, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Lufthansa LH8674
13:45
Oklahoma City (OKC)

15:24
Houston George Bush (IAH) B
Effective 2026-01-15 through 2026-02-08
Mon
Tue
-
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5531)
Duration: 1:39, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Lufthansa LH8674
13:45
Oklahoma City (OKC)

15:24
Houston George Bush (IAH) B
Operates only on 2026-02-10
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 5531)
Duration: 1:39, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Lufthansa LH8674
13:49
Oklahoma City (OKC)

15:25
Houston George Bush (IAH) B
Valid until 2026-01-05
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5531)
Duration: 1:36, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Lufthansa LH8674
13:50
Oklahoma City (OKC)

15:34
Houston George Bush (IAH) B
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5531)
Duration: 1:44, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Lufthansa LH8674
14:07
Oklahoma City (OKC)

15:40
Houston George Bush (IAH) B
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5531)
Duration: 1:33, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Lufthansa LH8714
15:30
Oklahoma City (OKC)

17:08
Houston George Bush (IAH) B
Effective 2026-01-06 through 2026-02-10
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines.(UA 6234Z)
Duration: 1:38, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Lufthansa LH8714
15:30
Oklahoma City (OKC)

17:09
Houston George Bush (IAH) B
Effective 2026-01-07 through 2026-02-11
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 4242)
Duration: 1:39, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Codeshare Flights:
Lufthansa LH8714
15:30
Oklahoma City (OKC)

17:05
Houston George Bush (IAH) C
Effective 2026-01-11 through 2026-02-08
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2464)
Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)
Direct Codeshare Flights:
Lufthansa LH8714
15:38
Oklahoma City (OKC)

17:21
Houston George Bush (IAH) B
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 6223)
Duration: 1:43, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Lufthansa LH8714
15:40
Oklahoma City (OKC)

17:18
Houston George Bush (IAH) B
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 6223)
Duration: 1:38, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Lufthansa LH8714
15:40
Oklahoma City (OKC)

17:23
Houston George Bush (IAH) B
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 6223)
Duration: 1:43, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Lufthansa LH8714
15:42
Oklahoma City (OKC)

17:20
Houston George Bush (IAH) B
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 6234)
Duration: 1:38, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Lufthansa LH8714
15:42
Oklahoma City (OKC)

17:21
Houston George Bush (IAH) B
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 4316)
Duration: 1:39, non-stop
Embraer ERJ 135 / ERJ 140 / ERJ 145 (ERJ)
Direct Codeshare Flights:
Lufthansa LH8714
15:45
Oklahoma City (OKC)

17:19
Houston George Bush (IAH) B
Valid until 2026-01-05
Mon
Tue
Wed
Thu
-
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 6219)
Duration: 1:34, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Lufthansa LH8714
15:45
Oklahoma City (OKC)

17:18
Houston George Bush (IAH) B
Effective 2026-05-21 through 2026-10-23
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5567)
Duration: 1:33, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Lufthansa LH8714
17:10
Oklahoma City (OKC)

18:41
Houston George Bush (IAH) B
Effective from 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5918)
Duration: 1:31, non-stop
Embraer EMB 175 (E7W)
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  • A domestic route departing from the Oklahoma City airport (OKC) and arriving at Houston George Bush airport (IAH).
  • 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 1:25 and 1:48.
Return (IAH-OKC) flights
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