United Flight UA523 Deals & Information (2025/2026)

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Frequently asked questions

What route does flight number UA523 take?
You'll be touching down at San Francisco Airport from John F. Kennedy Intl. Airport (JFK) if you've booked a ticket on flight number UA523. You'll be in the air for 6 hours and 37 minutes during this trip. It's also good to note that it conveniently operates non-stop.
What terminal does UA523 fly out of?
You'll likely be jetting out of Terminal 7 if you're booked on UA523 direct from New York, NY Airport (JFK-John F. Kennedy Intl.) to SFO.
What kind of plane is on flight number UA523?
The Boeing 767-300 is the type of aircraft most commonly used for flight number UA523. This flight nearly always heads off from JFK and lands at San Francisco Airport.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your UA523 flight with Travelocity, please visit our Customer Service Portal.