| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Dec 17 | MCI | SFO | 07:53 | 09:36 |
Landed
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| Dec 16 | MCI | SFO | 07:57 | 09:31 |
Landed
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| Dec 15 | MCI | SFO | 09:37 | 10:54 |
Delayed
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| Dec 14 | MCI | SFO | 07:59 | 09:20 |
Landed
|
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| Dec 13 | MCI | SFO | 07:43 | 09:04 |
Landed
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| Dec 12 | MCI | SFO | 07:57 | 09:22 |
Landed
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| Dec 11 | MCI | SFO | 07:39 | 08:57 |
Landed
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| Dec 10 | MCI | SFO | 07:41 | 09:10 |
Landed
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| Dec 09 | MCI | SFO | 08:11 | 09:36 |
Landed
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| Dec 08 | MCI | SFO | 08:39 | 10:03 |
Landed Late
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United Airlines Flight UA643 connects Kansas City, United States to San Francisco, United States, taking off from Kansas City International Airport MCI and landing at San Francisco International Airport SFO.
How long is the UA643 flight from Kansas City to San Francisco?
The average flight time from Kansas City to San Francisco is 3 hours and 25 minutes. The flight distance is 2406 km / 1495 miles and the average flight speed is 703 km/h / 437 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA643 Kansas City to San Francisco?
The Airportia On-Time Performance Rating for United Airlines Flight UA643 is 4.8/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA643 arriving at?
Flight UA643 arrives at San Francisco International Airport (SFO) Terminal 2.
When was the latest UA643 flight?
The latest flight took off on Wednesday, December 17th, 2025 with the flight status being Landed on 09:36.
How else can the flight UA643 be referenced as?
This United Airlines flight can also be referenced as UAL643, UA0643, UA 643, UAL 643.
How often is flight UA643 delayed?
On average, 40% of all UA643 flights are delayed. The average delay is 27 minutes.
Can I get compensation for my delayed or cancelled UA643 flight or baggage issues?
If your UA643 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 UA643 Flight Tracker above for more details.
Flight UA643 is code-shared by 2 airlines using the flight numbers NZ9504, OZ6318
Other flights departing from Kansas City MCI: WN1240, UA2745, WN1226, WN4247
Other flights arriving at San Francisco SFO: UA1048, UA1406, UA1390, DL2636
All flights connecting Kansas City MCI to San Francisco SFO.