Informational Guide to San Francisco Airport (SFO) - NON OFFICIAL

UA1577 United Airlines - Flight Status

Codeshare Flights
The flight AC5081 from Air Canada (AC) is a codeshare flight operated by United Airlines (UA) under the flight number UA1577. Check this page for details about flight UA1577.
Warning
This flight has been diverted and landed in a different airport than scheduled. Contact airline to obtain more information. This was the original destination:
San Francisco (SFO) - San Francisco International Airport
There is more than one flight with the same flight number on the same day. This is the other flight:
UA1577 Chicago (ORD) to San Francisco (SFO) Departure: 05:04 pm Arrival: 08:56 pm Check flight

Below, you can find details about United Airlines flight UA1577, which currently operates between the airports of Chicago - Chicago O'Hare International Airport (Airport Code ORD) and Chicago - Chicago O'Hare International Airport (Airport Code ORD).
This flight data pertains specifically to the flight's details for Monday, May 04, 2026.

Table of contents:
Flight Status Codeshare Flights
UA1577 On Time performance:
81
We have calculated the percentage of flights that arrived within 15 minutes of their scheduled time, or earlier, based on real flight data from the last 3 months. More about punctuality and delays

Flight Status

UA1577 United Airlines from Chicago

En Route - Delayed
Delay: 70 minutes
Flight Status for Monday May 04, 2026
This flight is also scheduled for Today (May 05, 2026). See it here
This flight is also scheduled for Tomorrow (May 06, 2026). See it here

Airline information

United Airlines
United Airlines
Equipment: Airbus A321neo

Departure

Chicago (ORD)
May 04, 2026
Chicago O'Hare International Airport
Departed at:
02:11 pm
Terminal:
2
Gate:
E10
Scheduled Departure Time: 02:15 pm

Arrival

Chicago (ORD)
May 04, 2026
Chicago O'Hare International Airport
Estimated Arrival Time:
06:22 pm
Terminal:
3
Gate:
E10
Scheduled Arrival Time: 05:12 pm
Disclaimer
The information displayed on this website is gathered from third-party providers with a wide reputation on the sector, which in turn obtain the information from the airlines. This data is provided only for informative purposes. www.airport-sfo.com assumes no responsibility for loss or damage as a result of relying on information posted here. Please contact your airline to verify flight status.

Codeshare Flights

This flight is shared with other airlines, this means that these other flights are the same:

- AC5081 - Air Canada

- LH9178 - Lufthansa

- NZ9326 - Air New Zealand

- VA8095 - Virgin Australia