Asiana Airlines
flight
OZ 9521:
San Francisco - Houston George Bush
San Francisco - Houston George Bush
FLIGHT SCHEDULE
Direct Codeshare Flights:
Asiana Airlines OZ9521
Valid until 2026-01-05
Mon
Tue
-
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 1932)
Duration: 3:49, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Asiana Airlines OZ9521
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 1932)
Duration: 3:49, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Asiana Airlines OZ9521
Effective 2026-02-12 through 2026-03-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 2305)
Duration: 3:50, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Asiana Airlines OZ9521
Operates only on 2026-03-04
Mon
-
-
Tue
-
-
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 2305)
Duration: 3:50, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Asiana Airlines OZ9521
Effective 2026-03-29 through 2026-10-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 2305)
Duration: 4:06, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Asiana Airlines OZ9521
Effective from 2026-10-19
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 2305)
Duration: 4:06, non-stop Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Asiana Airlines OZ9521
Operates only on 2026-03-03
Mon
-
-
Tue
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 2305)
Duration: 3:50, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Asiana Airlines OZ9521
Effective 2026-03-05 through 2026-03-07
Mon
-
-
Tue
-
-
Wed
-
-
Thu
Fri
Sat
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 2305)
Duration: 3:48, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Asiana Airlines OZ9521
Effective 2026-03-08 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 2305)
Duration: 3:48, non-stop Boeing 737-900 (739)
- OZ 9521 is a domestic flight departing from the San Francisco airport (SFO) and arriving at Houston George Bush airport (IAH).
- The flight distance is 1631 miles, or 2625 km.
- The timezone of the departure airport is UTC-8 , and the timezone of the arrival airport is UTC-6 . 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 3:48 and 4:06.