Asiana Airlines flight OZ 6304: Chicago O'Hare - San Francisco

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FLIGHT SCHEDULE
Direct Codeshare Flights:
Tue,Wed,Fri 17:16 Chicago O'Hare (ORD) 1 20:10 San Francisco (SFO) 3
OZ 6304 Non-stop Airbus A321neo (32Q) 4:54 Effective 2026-01-06 through 2026-01-16
Codeshare flight, operated by United Airlines.(UA 2166)
Mon,Thu 17:16 Chicago O'Hare (ORD) 1 20:10 San Francisco (SFO) 3
OZ 6304 Non-stop Airbus A321neo (32Q) 4:54 Effective 2026-01-19 through 2026-01-26
Codeshare flight, operated by United Airlines.(UA 2166)
Mon,Tue,Thu,Sun 17:16 Chicago O'Hare (ORD) 1 20:10 San Francisco (SFO) 3
OZ 6304 Non-stop Airbus A321neo (32Q) 4:54 Effective 2026-01-27 through 2026-02-02
Codeshare flight, operated by United Airlines.(UA 2166)
Tue-Thu,Sun 17:16 Chicago O'Hare (ORD) 1 20:10 San Francisco (SFO) 3
OZ 6304 Non-stop Airbus A321neo (32Q) 4:54 Effective 2026-02-04 through 2026-02-11
Codeshare flight, operated by United Airlines.(UA 2166)
Mon-Sat 18:17 Chicago O'Hare (ORD) 1 21:20 San Francisco (SFO) 3
OZ 6304 Non-stop Airbus A321neo (32Q) 5:03 Effective 2026-02-12 through 2026-03-04
Codeshare flight, operated by United Airlines.(UA 2179)
Sun 18:18 Chicago O'Hare (ORD) 1 21:21 San Francisco (SFO) 3
OZ 6304 Non-stop Airbus A321neo (32Q) 5:03 Effective 2026-02-15 through 2026-03-01
Codeshare flight, operated by United Airlines.(UA 2179)
Daily 18:20 Chicago O'Hare (ORD) 1 21:26 San Francisco (SFO) 3
OZ 6304 Non-stop Airbus A321neo (32Q) 5:06 Effective 2026-03-05 through 2026-03-28
Codeshare flight, operated by United Airlines.(UA 2179)
Daily 18:20 Chicago O'Hare (ORD) 1 21:20 San Francisco (SFO) 3
OZ 6304 Non-stop Airbus A321neo (32Q) 5:00 Effective 2026-03-29 through 2026-05-20
Codeshare flight, operated by United Airlines.(UA 2179)
Daily 18:20 Chicago O'Hare (ORD) 1 21:20 San Francisco (SFO) 3
OZ 6304 Non-stop Airbus A321neo (32Q) 5:00 Effective from 2026-10-25
Codeshare flight, operated by United Airlines.(UA 2179)
Mon,Wed-Sun 18:25 Chicago O'Hare (ORD) 1 21:29 San Francisco (SFO) 3
OZ 6304 Non-stop Airbus A321neo (32Q) 5:04 Valid until 2026-01-05
Codeshare flight, operated by United Airlines.(UA 2179)
Daily 18:25 Chicago O'Hare (ORD) 1 21:22 San Francisco (SFO) 3
OZ 6304 Non-stop Airbus A321neo (32Q) 4:57 Effective 2026-05-21 through 2026-10-24
Codeshare flight, operated by United Airlines.(UA 2179)
Mon,Thu,Sat,Sun 18:29 Chicago O'Hare (ORD) 1 21:30 San Francisco (SFO) 3
OZ 6304 Non-stop Airbus A321neo (32Q) 5:01 Effective 2026-01-08 through 2026-01-18
Codeshare flight, operated by United Airlines.(UA 2179)
Tue,Wed,Fri-Sun 18:29 Chicago O'Hare (ORD) 1 21:30 San Francisco (SFO) 3
OZ 6304 Non-stop Airbus A321neo (32Q) 5:01 Effective 2026-01-20 through 2026-01-25
Codeshare flight, operated by United Airlines.(UA 2179)
Tue,Wed,Fri,Sat 18:29 Chicago O'Hare (ORD) 1 21:30 San Francisco (SFO) 3
OZ 6304 Non-stop Airbus A321neo (32Q) 5:01 Effective 2026-01-28 through 2026-02-03
Codeshare flight, operated by United Airlines.(UA 2179)
Mon,Fri,Sat 18:29 Chicago O'Hare (ORD) 1 21:30 San Francisco (SFO) 3
OZ 6304 Non-stop Airbus A321neo (32Q) 5:01 Effective 2026-02-06 through 2026-02-09
Codeshare flight, operated by United Airlines.(UA 2179)
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Asiana Airlines flight OZ 6304:
Chicago O'Hare - San Francisco
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Asiana Airlines OZ6304
17:16
Chicago O'Hare (ORD) 1

20:10
San Francisco (SFO) 3
Effective 2026-01-06 through 2026-01-16
Mon
-
Tue
Wed
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2166)
Duration: 4:54, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Asiana Airlines OZ6304
17:16
Chicago O'Hare (ORD) 1

20:10
San Francisco (SFO) 3
Effective 2026-01-19 through 2026-01-26
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2166)
Duration: 4:54, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Asiana Airlines OZ6304
17:16
Chicago O'Hare (ORD) 1

20:10
San Francisco (SFO) 3
Effective 2026-01-27 through 2026-02-02
Mon
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2166)
Duration: 4:54, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Asiana Airlines OZ6304
17:16
Chicago O'Hare (ORD) 1

20:10
San Francisco (SFO) 3
Effective 2026-02-04 through 2026-02-11
Mon
-
Tue
Wed
Thu
Fri
-
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2166)
Duration: 4:54, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Asiana Airlines OZ6304
18:17
Chicago O'Hare (ORD) 1

21:20
San Francisco (SFO) 3
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 2179)
Duration: 5:03, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Asiana Airlines OZ6304
18:18
Chicago O'Hare (ORD) 1

21:21
San Francisco (SFO) 3
Effective 2026-02-15 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2179)
Duration: 5:03, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Asiana Airlines OZ6304
18:20
Chicago O'Hare (ORD) 1

21:26
San Francisco (SFO) 3
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2179)
Duration: 5:06, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Asiana Airlines OZ6304
18:20
Chicago O'Hare (ORD) 1

21:20
San Francisco (SFO) 3
Effective 2026-03-29 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2179)
Duration: 5:00, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Asiana Airlines OZ6304
18:20
Chicago O'Hare (ORD) 1

21:20
San Francisco (SFO) 3
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2179)
Duration: 5:00, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Asiana Airlines OZ6304
18:25
Chicago O'Hare (ORD) 1

21:29
San Francisco (SFO) 3
Valid until 2026-01-05
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2179)
Duration: 5:04, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Asiana Airlines OZ6304
18:25
Chicago O'Hare (ORD) 1

21:22
San Francisco (SFO) 3
Effective 2026-05-21 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2179)
Duration: 4:57, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Asiana Airlines OZ6304
18:29
Chicago O'Hare (ORD) 1

21:30
San Francisco (SFO) 3
Effective 2026-01-08 through 2026-01-18
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2179)
Duration: 5:01, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Asiana Airlines OZ6304
18:29
Chicago O'Hare (ORD) 1

21:30
San Francisco (SFO) 3
Effective 2026-01-20 through 2026-01-25
Mon
-
Tue
Wed
Thu
-
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2179)
Duration: 5:01, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Asiana Airlines OZ6304
18:29
Chicago O'Hare (ORD) 1

21:30
San Francisco (SFO) 3
Effective 2026-01-28 through 2026-02-03
Mon
-
Tue
Wed
Thu
-
Fri
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 2179)
Duration: 5:01, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Asiana Airlines OZ6304
18:29
Chicago O'Hare (ORD) 1

21:30
San Francisco (SFO) 3
Effective 2026-02-06 through 2026-02-09
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 2179)
Duration: 5:01, non-stop
Airbus A321neo (32Q)
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Parallax here ORD-SFO
  • OZ 6304 is a domestic flight departing from the Chicago O'Hare airport (ORD) and arriving at San Francisco airport (SFO).
  • The flight distance is 1840 miles, or 2962 km.
  • The timezone of the departure airport is UTC-6 , and the timezone of the arrival airport is UTC-8 . 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 4:54 and 5:06.
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