Lufthansa
flight
LH 8631:
Houston George Bush - Phoenix Sky Harbor
Houston George Bush - Phoenix Sky Harbor
FLIGHT SCHEDULE
Direct Codeshare Flights:
Lufthansa LH8631
Effective 2026-05-21 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 1031)
Duration: 2:56, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Lufthansa LH8631
Effective 2026-01-06 through 2026-01-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 1589)
Duration: 3:04, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Lufthansa LH8631
Effective 2026-01-15 through 2026-02-08
Mon
Tue
-
-
Wed
-
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 1589)
Duration: 3:04, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Lufthansa LH8631
Operates only on 2026-02-10
Mon
-
-
Tue
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 1589)
Duration: 3:04, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Lufthansa LH8631
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 2162)
Duration: 3:04, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Lufthansa LH8631
Effective 2026-02-12 through 2026-02-18
Mon
Tue
-
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 683)
Duration: 3:09, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Lufthansa LH8631
Effective 2026-02-20 through 2026-03-01
Mon
-
-
Tue
Wed
Thu
-
-
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 683)
Duration: 3:09, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Lufthansa LH8631
Effective 2026-03-02 through 2026-03-04
Mon
Tue
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 683)
Duration: 3:09, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Lufthansa LH8631
Effective 2026-03-05 through 2026-03-07
Mon
-
-
Tue
-
-
Wed
-
-
Thu
Fri
Sat
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 2617)
Duration: 3:08, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Lufthansa LH8631
Effective 2026-03-08 through 2026-03-28
Mon
Tue
-
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 2617)
Duration: 3:08, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Lufthansa LH8631
Effective 2026-03-29 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 1031)
Duration: 3:00, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Lufthansa LH8631
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 1860)
Duration: 2:56, non-stop Boeing 737-800 (738)
- LH 8631 is a domestic flight departing from the Houston George Bush airport (IAH) and arriving at Phoenix Sky Harbor airport (PHX).
- The flight distance is 1007 miles, or 1620 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 2:56 and 3:09.