| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Sep 07 | SFO | ORD | 10:23 | 16:36 |
Unknown
|
Track > |
| Sep 06 | SFO | ORD | 10:17 | 16:39 |
Unknown
|
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| Sep 05 | SFO | ORD | 15:06 | 20:39 |
Delayed
|
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| Sep 04 | SFO | ORD | 10:32 | 16:36 |
Unknown
|
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| Sep 03 | SFO | ORD | 11:05 | 16:50 |
Landed
|
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| Sep 02 | SFO | ORD | 10:19 | 16:36 |
Unknown
|
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| Sep 01 | SFO | ORD | 10:36 | 16:36 |
Unknown
|
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| Aug 31 | SFO | ORD | 10:26 | 16:13 |
Diverted
|
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| Claim > | ||||||
| Aug 30 | SFO | ORD | 10:55 | 16:49 |
Landed
|
Track > |
| Aug 29 | SFO | ORD | 10:19 | 16:00 |
Landed
|
Track > |
United Airlines Flight UA1921 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 UA1921 flight from San Francisco to Chicago?
The average flight time from San Francisco to Chicago is 3 hours and 44 minutes. The flight distance is 2964 km / 1842 miles and the average flight speed is 725 km/h / 450 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA1921 San Francisco to Chicago?
The Airportia On-Time Performance Rating for United Airlines Flight UA1921 is 4.6/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA1921 arriving at?
Flight UA1921 arrives at Chicago O'Hare International Airport (ORD) Terminal 1.
When was the latest UA1921 flight?
The latest flight took off on Monday, September 7th, 2026 with the flight status being Unknown on 16:36.
How else can the flight UA1921 be referenced as?
This United Airlines flight can also be referenced as UAL1921, UA 1921, UAL 1921.
How often is flight UA1921 delayed?
On average, 30% of all UA1921 flights are delayed. The average delay is 90 minutes.
Can I get compensation for my delayed or cancelled UA1921 flight or baggage issues?
If your UA1921 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 UA1921 Flight Tracker above for more details.
Flight UA1921 is code-shared by 3 airlines using the flight numbers AC4065, NZ9301, VA8099
Other flights departing from San Francisco SFO: UA2836, UA781, OO5460, UA694
Other flights arriving at Chicago ORD: AA2738, AA2910, UA3784, OO5639
All flights connecting San Francisco SFO to Chicago ORD.