| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jul 29 | ORD | SFO | 10:30 | 12:38 |
Landed Late
|
Track > |
United Airlines Flight UA3940 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 UA3940 flight from Chicago to San Francisco?
The average flight time from Chicago to San Francisco is 4 hours and 8 minutes. The flight distance is 2964 km / 1842 miles and the average flight speed is 717 km/h / 446 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA3940 Chicago to San Francisco?
The Airportia On-Time Performance Rating for United Airlines Flight UA3940 is 4.3/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA3940 arriving at?
Flight UA3940 arrives at San Francisco International Airport (SFO) Terminal 3.
When was the latest UA3940 flight?
The latest flight took off on Wednesday, July 29th, 2026 with the flight status being Landed on 12:38.
How else can the flight UA3940 be referenced as?
This United Airlines flight can also be referenced as UAL3940, UA 3940, UAL 3940.
How often is flight UA3940 delayed?
On average, 100% of all UA3940 flights are delayed. The average delay is 43 minutes.
Can I get compensation for my delayed or cancelled UA3940 flight or baggage issues?
If your UA3940 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 UA3940 Flight Tracker above for more details.
Other flights departing from Chicago ORD: AA2530, AA3733, UA5680, AA107
Other flights arriving at San Francisco SFO: AA2562, AS3025, AS3205, AS3486
All flights connecting Chicago ORD to San Francisco SFO.