| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jun 04 | PHL | SFO | 18:01 | 20:50 |
En-Route
|
Track > |
| Jun 02 | PHL | SFO | 16:43 | 18:58 |
Landed
|
Track > |
| Jun 01 | PHL | SFO | 18:38 | 21:53 |
Delayed
|
Track > |
| May 30 | PHL | SFO | 17:46 | 20:46 |
Landed
|
Track > |
| May 28 | PHL | SFO | 19:06 | 21:28 |
Landed Late
|
Track > |
| May 26 | PHL | SFO | 17:48 | 20:04 |
Landed
|
Track > |
| May 25 | PHL | SFO | 18:40 | 21:07 |
Landed Late
|
Track > |
| May 23 | PHL | SFO | 17:48 | 20:21 |
Landed
|
Track > |
| Apr 06 | PHL | SFO | 15:58 | 18:44 |
Landed
|
Track > |
| Apr 04 | PHL | SFO | 16:06 | 18:35 |
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 35 minutes. The flight distance is 4047 km / 2515 miles and the average flight speed is 718 km/h / 446 mph.
How many CZ1637 flights are operated per week?
4 flights per week. The flight CZ1637 is operated on Monday, Tuesday, 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 4.8/5 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 Friday, June 5th, 2026 with the flight status being En-Route on 20:50.
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 39 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: AA1314, AA1984, AA2663, AA5534
Other flights arriving at San Francisco SFO: UA1118, AA2663, UA1272, AA1430
All flights connecting Philadelphia PHL to San Francisco SFO.
