UA277 United Airlines - Flight Status
Below, you can find details about United Airlines flight UA277, which currently operates between the airports of Ontario - Ontario International Airport (Airport Code ONT) and San Francisco - San Francisco International Airport (Airport Code SFO).
This flight data pertains specifically to the flight's details for Saturday, December 06, 2025.
Table of contents:
Flight Status Codeshare Flights Additional Information Alternative Flights Punctuality and delays Last Past Flights UA277
Flight Status Codeshare Flights Additional Information Alternative Flights Punctuality and delays Last Past Flights UA277
UA277 On Time performance:
n/a
It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions. Flight Status
UA277 United Airlines to San Francisco
Landed - On-time
Flight Status for Saturday December 06, 2025
This flight was also scheduled for Yesterday (December 05, 2025). See it here
This flight is also scheduled for Tomorrow (December 07, 2025). See it here
Landed - On-time
Flight Status for Saturday December 06, 2025
Airline information
United Airlines
Equipment: Boeing 737-800 (Scimitar Winglets) Passenger
Departure
Ontario (ONT)
December 06, 2025
Ontario International Airport
Departed at:
05:56 am
Terminal:
2
Gate:
203
Scheduled Departure Time: 06:00 am
Arrival
San Francisco (SFO)
December 06, 2025
San Francisco International Airport
Arrived at:
07:22 am
Terminal:
3
Gate:
E6
Scheduled Arrival Time: 07:24 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.ontario-airport.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:
- AC4080 - Air Canada
Additional Information
Which is the frequency of flight UA277?
The flight UA277 is scheduled to flight on Tuesday, Wednesday, Thursday, Friday, Saturday on a weekly basis.
Which is the distance of flight UA277?
The distance between the two airports is 364 miles.
Are the departure airport and arrival airport at the same Time Zone?
Yes, both airports are in the same timezone.
The flight UA277 is scheduled to flight on Tuesday, Wednesday, Thursday, Friday, Saturday on a weekly basis.
Which is the distance of flight UA277?
The distance between the two airports is 364 miles.
Are the departure airport and arrival airport at the same Time Zone?
Yes, both airports are in the same timezone.
Alternative Flights
The following airlines serves the same route between Ontario and San Francisco:
Frontier Airlines
- Flight Number: F92677. (On Time performance: 59 - Average Delay: 24 minutes)
United Airlines
- Flight Number: UA1341.
- Flight Number: UA1708. (On Time performance: 74 - Average Delay: 15 minutes)
- Flight Number: UA2012. (On Time performance: 89 - Average Delay: 7 minutes)
- Flight Number: UA2072. (On Time performance: 67 - Average Delay: 35 minutes)
Frontier Airlines
- Flight Number: F92677. (On Time performance: 59 - Average Delay: 24 minutes)
United Airlines
- Flight Number: UA1341.
- Flight Number: UA1708. (On Time performance: 74 - Average Delay: 15 minutes)
- Flight Number: UA2012. (On Time performance: 89 - Average Delay: 7 minutes)
- Flight Number: UA2072. (On Time performance: 67 - Average Delay: 35 minutes)
Punctuality and delays
It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.
Delays analyzed by Weekday: We have gathered available data from last six months, spanning from June 04, 2025 to December 03, 2025. 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 December 02, 2024 to August 18, 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.
Delays analyzed by Weekday: We have gathered available data from last six months, spanning from June 04, 2025 to December 03, 2025. 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.
Last Past Flights UA277
Date
Departure
Arrival
Duration
Aircraft
Status
Friday
05 December
05 December
05:52 am
Ontario (ONT)
Ontario (ONT)
07:15 am
San Francisco (SFO)
San Francisco (SFO)
01h 23min
Boeing 737-800
Boeing 737-800
Landed - On-time
Thursday
04 December
04 December
05:57 am
Ontario (ONT)
Ontario (ONT)
07:27 am
San Francisco (SFO)
San Francisco (SFO)
01h 30min
Boeing 737-800
Boeing 737-800
Landed - On-time
Wednesday
03 December
03 December
05:54 am
Ontario (ONT)
Ontario (ONT)
07:19 am
San Francisco (SFO)
San Francisco (SFO)
01h 25min
Boeing 737-800
Boeing 737-800
Landed - On-time
Tuesday
02 December
02 December
05:58 am
Ontario (ONT)
Ontario (ONT)
07:17 am
San Francisco (SFO)
San Francisco (SFO)
01h 19min
Boeing 737MAX
Boeing 737MAX
Landed - On-time