| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jul 27 | PHL | SFO | 18:12 | 20:33 |
En-Route
|
Track > |
| Jul 25 | PHL | SFO | 17:47 | 20:06 |
Landed
|
Track > |
| Jul 23 | PHL | SFO | 17:48 | 20:26 |
Landed
|
Track > |
| Jul 21 | PHL | SFO | 19:42 | 22:02 |
Delayed
|
Track > |
| Jul 20 | PHL | SFO | 18:18 | 20:26 |
Landed
|
Track > |
| Jul 18 | PHL | SFO | 19:23 | 21:32 |
Delayed
|
Track > |
| Apr 06 | PHL | SFO | 15:58 | 18:44 |
Landed
|
Track > |
| Apr 04 | PHL | SFO | 16:06 | 18:35 |
Landed
|
Track > |
| Apr 02 | PHL | SFO | 18:40 | 21:24 |
Delayed
|
Track > |
| Mar 31 | PHL | SFO | 16:19 | 19:02 |
Landed
|
Track > |
China Southern Airlines Flight CZ1637 connects Philadelphia, United States to San Francisco, United States, taking off from Philadelphia International Airport PHL and landing at San Francisco International Airport SFO.
How long is the CZ1637 flight from Philadelphia to San Francisco?
The average flight time from Philadelphia to San Francisco is 5 hours and 27 minutes. The flight distance is 4047 km / 2515 miles and the average flight speed is 742 km/h / 461 mph.
How many CZ1637 flights are operated per week?
3 flights per week. The flight CZ1637 is operated on Monday, Thursday and Saturday.
What is the On-Time Performance (OTP) of China Southern Airlines Flight CZ1637 Philadelphia to San Francisco?
The Airportia On-Time Performance Rating for China Southern Airlines Flight CZ1637 is 4.6/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight CZ1637 arriving at?
Flight CZ1637 arrives at San Francisco International Airport (SFO) Terminal 1.
When was the latest CZ1637 flight?
The latest flight took off on Tuesday, July 28th, 2026 with the flight status being En-Route on 20:33.
How else can the flight CZ1637 be referenced as?
This China Southern Airlines flight can also be referenced as CSN1637, CZ 1637, CSN 1637.
How often is flight CZ1637 delayed?
On average, 30% of all CZ1637 flights are delayed. The average delay is 84 minutes.
Can I get compensation for my delayed or cancelled CZ1637 flight or baggage issues?
If your CZ1637 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.
See our CZ1637 Flight Tracker above for more details.
Other flights departing from Philadelphia PHL: AA2663, AA3041, AA6108, DL5706
Other flights arriving at San Francisco SFO: AA2663, UA1118, AA1620, AS619
All flights connecting Philadelphia PHL to San Francisco SFO.
