Informational Guide to LAX Airport - NON OFFICIAL

UA661 United Airlines - Flight Status

Codeshare Flights
The flight NZ9689 from Air New Zealand (NZ) is a codeshare flight operated by United Airlines (UA) under the flight number UA661. Check this page for details about flight UA661.

Below, you can find details about United Airlines flight UA661, which currently operates between the airports of Chicago - Chicago O'Hare International Airport (Airport Code ORD) and Los Angeles - Los Angeles International Airport (Airport Code LAX).
This flight data pertains specifically to the flight's details for Sunday, December 07, 2025.

UA661 On Time performance:
69
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

UA661 United Airlines from Chicago

Scheduled - Delayed
Delay: 69 minutes
Flight Status for Sunday December 07, 2025
This flight was also scheduled for Yesterday (December 06, 2025). See it here
This flight is also scheduled for Tomorrow (December 08, 2025). See it here

Airline information

United Airlines
United Airlines
Equipment: Airbus A321neo

Departure

Chicago (ORD)
December 07, 2025
Chicago O'Hare International Airport
Estimated Departure Time:
09:32 pm
Terminal:
1
Gate:
C21
Scheduled Departure Time: 08:12 pm

Arrival

Los Angeles (LAX)
December 07, 2025
Los Angeles International Airport
Estimated Arrival Time:
12:04 am (2025-12-08)
Terminal:
8
Gate:
81
Scheduled Arrival Time: 10:55 pm
Baggage: 2
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.los-angeles-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:

- AC5576 - Air Canada

- LH9164 - Lufthansa

- NZ9689 - Air New Zealand

- VA8031 - Virgin Australia

Additional Information

Which is the frequency of flight UA661?
The flight UA661 is scheduled to flight on daily basis.

Which is the distance of flight UA661?
The distance between the two airports is 1742 miles.

Which is the flight time of flight UA661?
The scheduled flight time gate to gate is: 04:43 hours.
The real flight time gate to gate on average is: 04:35 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 Chicago: 2025-12-07 20:39:15
Current Time in Los Angeles: 2025-12-07 18:39:15

Alternative Flights

The following airlines serves the same route between Chicago and Los Angeles:

American Airlines
- Flight Number: AA1077. (On Time performance: 86 - Average Delay: 9 minutes)
- Flight Number: AA1302.
- Flight Number: AA1937.
- Flight Number: AA1979. (On Time performance: 72 - Average Delay: 17 minutes)
- Flight Number: AA2124. (On Time performance: 83 - Average Delay: 10 minutes)
- Flight Number: AA2716.
- Flight Number: AA2917. (On Time performance: 90 - Average Delay: 7 minutes)
- Flight Number: AA2970. (On Time performance: 95 - Average Delay: 1 minutes)
- Flight Number: AA2998. (On Time performance: 50 - Average Delay: 38 minutes)
- Flight Number: AA3194. (On Time performance: 54 - Average Delay: 28 minutes)
- Flight Number: AA369. (On Time performance: 89 - Average Delay: 6 minutes)
- Flight Number: AA638. (On Time performance: 83 - Average Delay: 36 minutes)
- Flight Number: AA779. (On Time performance: 100 - Average Delay: 0 minutes)
- Flight Number: AA793. (On Time performance: 64 - Average Delay: 39 minutes)
- Flight Number: AA830.
- Flight Number: AA885.
- Flight Number: AA891. (On Time performance: 79 - Average Delay: 33 minutes)
- Flight Number: AA892. (On Time performance: 78 - Average Delay: 19 minutes)

Frontier Airlines
- Flight Number: F92445. (On Time performance: 79 - Average Delay: 9 minutes)

Spirit Airlines
- Flight Number: NK1331. (On Time performance: 72 - Average Delay: 11 minutes)
- Flight Number: NK3353.
- Flight Number: NK797.

United Airlines
- Flight Number: UA1044. (On Time performance: 84 - Average Delay: 9 minutes)
- Flight Number: UA1363. (On Time performance: 94 - Average Delay: 6 minutes)
- Flight Number: UA1967. (On Time performance: 78 - Average Delay: 20 minutes)
- Flight Number: UA2124. (On Time performance: 82 - Average Delay: 20 minutes)
- Flight Number: UA2227. (On Time performance: 73 - Average Delay: 31 minutes)
- Flight Number: UA2361. (On Time performance: 89 - Average Delay: 6 minutes)
- Flight Number: UA2396. (On Time performance: 86 - Average Delay: 10 minutes)
- Flight Number: UA2607. (On Time performance: 72 - Average Delay: 24 minutes)
- Flight Number: UA2684. (On Time performance: 84 - Average Delay: 14 minutes)
- Flight Number: UA576. (On Time performance: 88 - Average Delay: 15 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 October 26, 2025 to December 01, 2025, we have obtained these figures.
Total number of flights: 36
On Time: 25 ( 69 % )
Moderate Delay: 6 ( 17 % )
Significant Delay: 1 ( 3 % )
Major Delay: 4 ( 11 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )

Average Delay: 18 minutes.
Delays analyzed by Weekday: We have gathered available data from last six months, spanning from October 26, 2025 to December 01, 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 October 26, 2025 to November 30, 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.

Last Past Flights UA661

Date
Departure
Arrival
Duration
Aircraft
Status
Saturday
06 December
08:18 pm
Chicago (ORD)
10:55 pm
Los Angeles (LAX)
04h 37min
Airbus A321neo
Airbus A321neo
Landed - On-time
Friday
05 December
08:17 pm
Chicago (ORD)
10:30 pm
Los Angeles (LAX)
04h 13min
Airbus A321neo
Airbus A321neo
Landed - On-time
Thursday
04 December
08:43 pm
Chicago (ORD)
11:02 pm
Los Angeles (LAX)
04h 19min
Airbus A321neo
Airbus A321neo
Landed - On-time
Wednesday
03 December
06:25 am
()
09:02 am
Los Angeles (LAX)
Airbus A321neo
Airbus A321neo
Landed - DIVERTED
Wednesday
03 December
09:55 pm
Chicago (ORD)
11:54 pm
Chicago (ORD)
Airbus A321neo
Airbus A321neo
- DIVERTED
Tuesday
02 December
08:23 pm
Chicago (ORD)
11:02 pm
Los Angeles (LAX)
Airbus A321neo
Airbus A321neo
Landed - On-time
Monday
01 December
10:34 pm
Chicago (ORD)
12:56 am
Los Angeles (LAX)
Airbus A321neo
Airbus A321neo
Landed - Delayed
Sunday
30 November
10:00 pm
Chicago (ORD)
12:29 am
Los Angeles (LAX)
Boeing 737-900
Boeing 737-900
Landed - Delayed
Saturday
29 November
09:57 pm
Chicago (ORD)
12:41 am
Los Angeles (LAX)
Airbus A321neo
Airbus A321neo
Landed - Delayed
Friday
28 November
08:25 pm
Chicago (ORD)
11:17 pm
Los Angeles (LAX)
Airbus A321neo
Airbus A321neo
Landed - Delayed