| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| May 11 | SFO | ORD | 15:05 | 20:25 |
Landed
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| May 10 | SFO | ORD | 15:00 | 20:24 |
Landed
|
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| May 09 | SFO | ORD | 15:07 | 20:37 |
Landed
|
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| May 04 | SFO | ORD | 14:47 | 21:03 |
Unknown
|
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| May 03 | SFO | ORD | 14:39 | 21:31 |
Delayed
|
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| May 02 | SFO | ORD | 14:50 | 20:46 |
Unknown
|
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United Airlines Flight UA1851 connects San Francisco, United States to Chicago, United States, taking off from San Francisco International Airport SFO and landing at Chicago O'Hare International Airport ORD.
How long is the UA1851 flight from San Francisco to Chicago?
The average flight time from San Francisco to Chicago is 3 hours and 48 minutes. The flight distance is 2964 km / 1842 miles and the average flight speed is 774 km/h / 481 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA1851 San Francisco to Chicago?
The Airportia On-Time Performance Rating for United Airlines Flight UA1851 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA1851 arriving at?
Flight UA1851 arrives at Chicago O'Hare International Airport (ORD) Terminal 1.
When was the latest UA1851 flight?
The latest flight took off on Tuesday, May 12th, 2026 with the flight status being Landed on 20:25.
How else can the flight UA1851 be referenced as?
This United Airlines flight can also be referenced as UAL1851, UA 1851, UAL 1851.
How often is flight UA1851 delayed?
On average, 17% of all UA1851 flights are delayed. The average delay is 28 minutes.
Can I get compensation for my delayed or cancelled UA1851 flight or baggage issues?
If your UA1851 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 UA1851 Flight Tracker above for more details.
Flight UA1851 is code-shared by 2 airlines using the flight numbers AC5196, NZ9302
Other flights departing from San Francisco SFO: UA433, UA5744, B61216, AS2333
Other flights arriving at Chicago ORD: QR8834, AA1009, AA2711, AA4533
All flights connecting San Francisco SFO to Chicago ORD.