| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Sep 30 | SFO | ORD | 17:24 | 22:48 |
Landed
|
Track > |
United Airlines Flight UA3940 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 UA3940 flight from San Francisco to Chicago?
The average flight time from San Francisco to Chicago is 3 hours and 24 minutes. The flight distance is 2964 km / 1842 miles and the average flight speed is 872 km/h / 542 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA3940 San Francisco to Chicago?
The Airportia On-Time Performance Rating for United Airlines Flight UA3940 is 5/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA3940 arriving at?
Flight UA3940 arrives at Chicago O'Hare International Airport (ORD) Terminal 1.
When was the latest UA3940 flight?
The latest flight took off on Thursday, October 1st, 2026 with the flight status being Landed on 22:48.
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, 0% of all UA3940 flights are delayed. The average delay is 0 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 San Francisco SFO: AA557, WN3546, YP112, UA3875
Other flights arriving at Chicago ORD: KJ248, UA775, AA2841, OO4940
All flights connecting San Francisco SFO to Chicago ORD.