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

UA4657 United Airlines - Flight Status

Codeshare Flights
The flight NZ9368 from Air New Zealand (NZ) is a codeshare flight operated by United Airlines (UA) under the flight number UA4657. Check this page for details about flight UA4657.

Below, you can find details about United Airlines flight UA4657, which currently operates between the airports of Aspen - Aspen Airport (Airport Code ASE) and San Francisco - San Francisco International Airport (Airport Code SFO).
This flight data pertains specifically to the flight's details for Sunday, February 01, 2026.

UA4657 On Time performance:
92
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

UA4657 United Airlines from Aspen

Scheduled - On-time
Flight Status for Sunday February 01, 2026
This flight was also scheduled for Yesterday (January 30, 2026). See it here
This flight is also scheduled for Today (January 31, 2026). See it here

Airline information

United Airlines
United Airlines
Equipment: Embraer 175 (Enhanced Winglets)

Departure

Aspen (ASE)
February 01, 2026
Aspen Airport
Estimated Departure Time:
09:40 am
Terminal:
-
Gate:
-
Scheduled Departure Time: 09:40 am

Arrival

San Francisco (SFO)
February 01, 2026
San Francisco International Airport
Estimated Arrival Time:
11:41 am
Terminal:
3
Gate:
E3
Scheduled Arrival Time: 11:41 am
Baggage: 6
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:

- NZ9368 - Air New Zealand

Additional Information

Which is the frequency of flight UA4657?
The flight UA4657 is scheduled to flight on daily basis.

Which is the distance of flight UA4657?
The distance between the two airports is 847 miles.

Which is the flight time of flight UA4657?
The scheduled flight time gate to gate is: 03:01 hours.
The real flight time gate to gate on average is: 02:38 hours.

Are the departure airport and arrival airport at the same Time Zone?
No, each airport is in a different timezone. The times shown above, are presented in the local time of each respective airport.
Current Time in Aspen: 2026-01-31 22:50:41
Current Time in San Francisco: 2026-01-31 21:50:41

Alternative Flights

The following airline serve the same route between Aspen and San Francisco:
United Airlines - Flight Number: UA5480. (On Time performance: 83 - Average Delay: 7 minutes)

Punctuality and delays

We have gathered data from recent months and present below an analysis of how timely the flights have been.

In terms of On-Time Performance, by analyzing the flight data from the last three months, spanning from January 06, 2026 to January 29, 2026, we have obtained these figures.
Total number of flights: 24
On Time: 22 ( 92 % )
Moderate Delay: 1 ( 4 % )
Significant Delay: 0 ( 0 % )
Major Delay: 1 ( 4 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )

Average Delay: 8 minutes.
Delays analyzed by Weekday: We have gathered available data from last six months, spanning from July 30, 2025 to January 29, 2026. Next, you can observe the results broken down by day of the week: number of flights analyzed, on-time performance per day, and average delay per day.

Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from March 30, 2025 to September 24, 2025. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.

Note: We have excluded some months from the graph, since the quantity and quality of the data is not representative enough.

Last Past Flights UA4657

Date
Departure
Arrival
Duration
Aircraft
Status
Friday
30 January
09:30 am
Aspen (ASE)
10:58 am
San Francisco (SFO)
02h 28min
Embraer 175 (E
Embraer 175 (E
Landed - On-time
Thursday
29 January
09:27 am
Aspen (ASE)
11:18 am
San Francisco (SFO)
02h 51min
Embraer 175 (E
Embraer 175 (E
Landed - On-time
Wednesday
28 January
09:36 am
Aspen (ASE)
11:19 am
San Francisco (SFO)
02h 43min
Embraer 175 (E
Embraer 175 (E
Landed - On-time
Tuesday
27 January
09:35 am
Aspen (ASE)
11:09 am
San Francisco (SFO)
02h 34min
Embraer 175 (E
Embraer 175 (E
Landed - On-time
Monday
26 January
09:40 am
Aspen (ASE)
11:41 am
San Francisco (SFO)
03h 01min
Embraer 175 (E
Embraer 175 (E
Sunday
25 January
09:30 am
Aspen (ASE)
11:43 am
San Francisco (SFO)
03h 13min
Embraer 175 (E
Embraer 175 (E
Landed - On-time
Saturday
24 January
12:10 pm
Aspen (ASE)
02:11 pm
San Francisco (SFO)
03h 01min
Embraer 175 (E
Embraer 175 (E
Friday
23 January
09:31 am
Aspen (ASE)
11:06 am
San Francisco (SFO)
02h 35min
Embraer 175 (E
Embraer 175 (E
Landed - On-time
Thursday
22 January
09:24 am
Aspen (ASE)
10:56 am
San Francisco (SFO)
02h 32min
Embraer 175 (E
Embraer 175 (E
Landed - On-time
Wednesday
21 January
10:14 am
Aspen (ASE)
11:39 am
San Francisco (SFO)
02h 25min
Embraer 175 (E
Embraer 175 (E
Landed - On-time