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UA 2866 Chicago to San Francisco Flight Status

United Airlines Flight UA2866 from Chicago O'Hare International Airport ORD to San Francisco International Airport SFO is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on December 17th, 2025.
Check the table below for UA2866's most recent flight history:

UA 2866 Flight Status & Schedule

Date Departure Arrival Status
Dec 17 16:30 18:50
Landed
Track >
Dec 16 16:38 18:54
Landed
Track >
Dec 15 16:40 18:41
Landed
Track >
Dec 14 17:04 19:00
Landed
Track >
Dec 13 16:43 18:51
Landed
Track >

United Airlines UA 2866 Chicago to San Francisco Flight Information

United Airlines Flight UA2866 connects Chicago, United States to San Francisco, United States, taking off from Chicago O'Hare International Airport ORD and landing at San Francisco International Airport SFO.

How long is the UA2866 flight from Chicago to San Francisco?

The average flight time from Chicago to San Francisco is 4 hours and 7 minutes. The flight distance is 2964 km / 1842 miles and the average flight speed is 720 km/h / 447 mph.

What is the On-Time Performance (OTP) of United Airlines Flight UA2866 Chicago to San Francisco?

The Airportia On-Time Performance Rating for United Airlines Flight UA2866 is 5/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight UA2866 arriving at?

Flight UA2866 arrives at San Francisco International Airport (SFO) Terminal 3.

When was the latest UA2866 flight?

The latest flight took off on Thursday, December 18th, 2025 with the flight status being Landed on 18:50.

How else can the flight UA2866 be referenced as?

This United Airlines flight can also be referenced as UAL2866, UA 2866, UAL 2866.

How often is flight UA2866 delayed?

On average, 0% of all UA2866 flights are delayed. The average delay is 0 minutes.

Can I get compensation for my delayed or cancelled UA2866 flight or baggage issues?

If your UA2866 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 UA2866 Flight Tracker above for more details.

UA2866 and Chicago ORD to San Francisco SFO Flights

Flight UA2866 is code-shared by 5 airlines using the flight numbers AC3267, NZ9332, OS7717, SN8819, VA8096

Other flights departing from Chicago ORD: UA1973, UA2331, AA4913, UA1801

Other flights arriving at San Francisco SFO: UA234, UA2624, AS2477, UA455

All flights connecting Chicago ORD to San Francisco SFO.

UA2866 United Airlines Flight: Chicago to San Francisco Route Map

Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.