China Southern flight CZ 1634: San Francisco - Chicago O'Hare

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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon,Tue,Thu,Sat 22:49 San Francisco (SFO) 1 05:07 Chicago O'Hare (ORD) 3
CZ 1634 Non-stop Boeing 737 MAX 8 (7M8) 4:18 Valid until 2026-01-05
Codeshare flight, operated by American Airlines.(AA 2761)
The flight arrives 1 day after departure.
Mon,Tue,Thu,Sat 23:23 San Francisco (SFO) 1 05:42 Chicago O'Hare (ORD) 3
CZ 1634 Non-stop Boeing 737 MAX 8 (7M8) 4:19 Effective 2026-02-12 through 2026-02-19
Codeshare flight, operated by American Airlines.(AA 3048)
The flight arrives 1 day after departure.
Mon,Tue,Thu,Sat 23:23 San Francisco (SFO) 1 05:42 Chicago O'Hare (ORD) 3
CZ 1634 Non-stop Boeing 737 MAX 8 (7M8) 4:19 Effective 2026-02-23 through 2026-03-05
Codeshare flight, operated by American Airlines.(AA 3048)
The flight arrives 1 day after departure.
Mon,Tue,Thu,Sat 23:47 San Francisco (SFO) 1 06:09 Chicago O'Hare (ORD) 3
CZ 1634 Non-stop Boeing 737-800 (738) 4:22 Effective 2026-03-09 through 2026-04-06
Codeshare flight, operated by American Airlines.(AA 2113)
The flight arrives 1 day after departure.
Mon,Tue,Thu,Sat 23:47 San Francisco (SFO) 1 06:05 Chicago O'Hare (ORD) 3
CZ 1634 Non-stop Boeing 737 MAX 8 (7M8) 4:18 Effective 2026-04-07 through 2026-05-19
Codeshare flight, operated by American Airlines.(AA 2113)
The flight arrives 1 day after departure.
Mon,Tue,Thu,Sat 23:47 San Francisco (SFO) 1 06:05 Chicago O'Hare (ORD) 3
CZ 1634 Non-stop Airbus A321 (321) 4:18 Effective 2026-07-02 through 2026-08-04
Codeshare flight, operated by American Airlines.(AA 2565)
The flight arrives 1 day after departure.
Mon,Tue,Thu,Sat 23:50 San Francisco (SFO) 1 06:05 Chicago O'Hare (ORD) 3
CZ 1634 Non-stop Airbus A321 (321) 4:15 Effective 2026-05-21 through 2026-06-30
Codeshare flight, operated by American Airlines.(AA 2554)
The flight arrives 1 day after departure.
Mon,Tue,Thu,Sat 23:56 San Francisco (SFO) 1 06:05 Chicago O'Hare (ORD) 3
CZ 1634 Non-stop Airbus A321 (321) 4:09 Effective 2026-10-05 through 2026-10-29
Codeshare flight, operated by American Airlines.(AA 2761)
The flight arrives 1 day after departure.
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China Southern flight CZ 1634:
San Francisco - Chicago O'Hare
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
China Southern CZ1634
22:49
San Francisco (SFO) 1

05:07(+1)
Chicago O'Hare (ORD) 3
Valid until 2026-01-05
Mon
Tue
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 2761)
Duration: 4:18, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
China Southern CZ1634
23:23
San Francisco (SFO) 1

05:42(+1)
Chicago O'Hare (ORD) 3
Effective 2026-02-12 through 2026-02-19
Mon
Tue
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 3048)
Duration: 4:19, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
China Southern CZ1634
23:23
San Francisco (SFO) 1

05:42(+1)
Chicago O'Hare (ORD) 3
Effective 2026-02-23 through 2026-03-05
Mon
Tue
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 3048)
Duration: 4:19, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
China Southern CZ1634
23:47
San Francisco (SFO) 1

06:09(+1)
Chicago O'Hare (ORD) 3
Effective 2026-03-09 through 2026-04-06
Mon
Tue
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 2113)
Duration: 4:22, non-stop
Boeing 737-800 (738)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
China Southern CZ1634
23:47
San Francisco (SFO) 1

06:05(+1)
Chicago O'Hare (ORD) 3
Effective 2026-04-07 through 2026-05-19
Mon
Tue
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 2113)
Duration: 4:18, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
China Southern CZ1634
23:47
San Francisco (SFO) 1

06:05(+1)
Chicago O'Hare (ORD) 3
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 2565)
Duration: 4:18, non-stop
Airbus A321 (321)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
China Southern CZ1634
23:50
San Francisco (SFO) 1

06:05(+1)
Chicago O'Hare (ORD) 3
Effective 2026-05-21 through 2026-06-30
Mon
Tue
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 2554)
Duration: 4:15, non-stop
Airbus A321 (321)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
China Southern CZ1634
23:56
San Francisco (SFO) 1

06:05(+1)
Chicago O'Hare (ORD) 3
Effective 2026-10-05 through 2026-10-29
Mon
Tue
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 2761)
Duration: 4:09, non-stop
Airbus A321 (321)
The flight arrives 1 day after departure.
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  • CZ 1634 is a domestic flight departing from the San Francisco airport (SFO) and arriving at Chicago O'Hare airport (ORD).
  • The flight distance is 1840 miles, or 2962 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 4:09 and 4:22.
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