Informational Guide to Raleigh–Durham International Airport (RDU) - NON OFFICIAL

UA1221 United Airlines - Flight Status

Below, you can find details about United Airlines flight UA1221, which currently operates between the airports of San Francisco - San Francisco International Airport (Airport Code SFO) and Raleigh/Durham - Raleigh-Durham International Airport (Airport Code RDU).
This flight data pertains specifically to the flight's details for Wednesday, December 31, 2025.

UA1221 On Time performance:
67
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

UA1221 United Airlines from San Francisco

Landed - On-time
Flight Status for Wednesday December 31, 2025
This flight was also scheduled for Yesterday (December 30, 2025). See it here

Airline information

United Airlines
United Airlines
Equipment: Boeing 737MAX 8 Passenger

Departure

San Francisco (SFO)
December 30, 2025
San Francisco International Airport
Departed at:
09:06 pm
Terminal:
3
Gate:
F20
Scheduled Departure Time: 09:10 pm

Arrival

Raleigh/Durham (RDU)
December 31, 2025
Raleigh-Durham International Airport
Arrived at:
05:01 am
Terminal:
2
Gate:
D13
Scheduled Arrival Time: 05:16 am
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.raleigh-durham-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:

- NZ9568 - Air New Zealand

- VA8573 - Virgin Australia

Additional Information

Which is the frequency of flight UA1221?
The flight UA1221 is scheduled to flight on daily basis.

Which is the distance of flight UA1221?
The distance between the two airports is 2396 miles.

Which is the flight time of flight UA1221?
The scheduled flight time gate to gate is: 05:06 hours.
The real flight time gate to gate on average is: 04:46 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 San Francisco: 2025-12-31 19:16:27
Current Time in Raleigh/Durham: 2025-12-31 22:16:27

Alternative Flights

The following airline serve the same route between San Francisco and Raleigh/Durham:
United Airlines - Flight Number: UA2080. (On Time performance: 84 - Average Delay: 12 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 December 19, 2025 to December 24, 2025, we have obtained these figures.
Total number of flights: 6
On Time: 4 ( 67 % )
Moderate Delay: 1 ( 17 % )
Significant Delay: 1 ( 17 % )
Major Delay: 0 ( 0 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )

Average Delay: 11 minutes.
Delays analyzed by Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Month: It is not possible to calculate the On-Time Performance for this flight accurately by month due to insufficient or non-representative data, as doing so could lead to misleading conclusions

Last Past Flights UA1221

Date
Departure
Arrival
Duration
Aircraft
Status
Tuesday
30 December
09:02 pm
San Francisco (SFO)
05:16 am
Raleigh/Durham (RDU)
05h 14min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Monday
29 December
09:04 pm
San Francisco (SFO)
04:53 am
Raleigh/Durham (RDU)
04h 49min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Sunday
28 December
09:54 pm
San Francisco (SFO)
05:53 am
Raleigh/Durham (RDU)
04h 59min
Boeing 737MAX
Boeing 737MAX
Landed - Delayed
Saturday
27 December
09:26 pm
San Francisco (SFO)
04:57 am
Raleigh/Durham (RDU)
04h 31min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Friday
26 December
09:50 pm
San Francisco (SFO)
05:17 am
Raleigh/Durham (RDU)
04h 27min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Thursday
25 December
09:05 pm
San Francisco (SFO)
04:53 am
Raleigh/Durham (RDU)
04h 48min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Wednesday
24 December
10:05 pm
San Francisco (SFO)
05:35 am
Raleigh/Durham (RDU)
04h 30min
Boeing 737MAX
Boeing 737MAX
Landed - Delayed
Tuesday
23 December
09:54 pm
San Francisco (SFO)
05:27 am
Raleigh/Durham (RDU)
04h 33min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Monday
22 December
09:48 pm
San Francisco (SFO)
05:53 am
Raleigh/Durham (RDU)
05h 05min
Boeing 737MAX
Boeing 737MAX
Landed - Delayed
Sunday
21 December
09:06 pm
San Francisco (SFO)
04:53 am
Raleigh/Durham (RDU)
04h 47min
Boeing 737MAX
Boeing 737MAX
Landed - On-time