UA321 United Airlines - Flight Status
Below, you can find details about United Airlines flight UA321, which currently operates between the airports of Philadelphia - Philadelphia International Airport (Airport Code PHL) and Chicago - Chicago O'Hare International Airport (Airport Code ORD).
This flight data pertains specifically to the flight's details for Sunday, December 21, 2025.
Table of contents:
Flight Status Codeshare Flights Additional Information Alternative Flights Punctuality and delays Last Past Flights UA321
Flight Status Codeshare Flights Additional Information Alternative Flights Punctuality and delays Last Past Flights UA321
UA321 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
UA321 United Airlines to Chicago
Landed - Delayed
Delay: 28 minutes
Flight Status for Sunday December 21, 2025
This flight was also scheduled for Yesterday (December 20, 2025). See it here
This flight is also scheduled for Tomorrow (December 22, 2025). See it here
Landed - Delayed
Delay: 28 minutes
Flight Status for Sunday December 21, 2025
Airline information
United Airlines
Equipment: Boeing 737MAX 8 Passenger
Departure
Philadelphia (PHL)
December 21, 2025
Philadelphia International Airport
Departed at:
06:14 am
Terminal:
D
Gate:
D9
Scheduled Departure Time: 06:10 am
Arrival
Chicago (ORD)
December 21, 2025
Chicago O'Hare International Airport
Arrived at:
08:06 am
Terminal:
1
Gate:
B4
Scheduled Arrival Time: 07:38 am
Baggage: 5
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.philadelphia-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:
- AC3005 - Air Canada
- NH7459 - ANA All Nippon Airways
- NZ2736 - Air New Zealand
Additional Information
Which is the frequency of flight UA321?
The flight UA321 is scheduled to flight on Friday, Saturday, Sunday on a weekly basis.
Which is the distance of flight UA321?
The distance between the two airports is 676 miles.
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 Philadelphia: 2025-12-21 12:39:12
Current Time in Chicago: 2025-12-21 11:39:12
The flight UA321 is scheduled to flight on Friday, Saturday, Sunday on a weekly basis.
Which is the distance of flight UA321?
The distance between the two airports is 676 miles.
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 Philadelphia: 2025-12-21 12:39:12
Current Time in Chicago: 2025-12-21 11:39:12
Alternative Flights
The following airlines serves the same route between Philadelphia and Chicago:
American Airlines
- Flight Number: AA1181. (On Time performance: 67 - Average Delay: 23 minutes)
- Flight Number: AA1333. (On Time performance: 80 - Average Delay: 11 minutes)
- Flight Number: AA1452. (On Time performance: 79 - Average Delay: 28 minutes)
- Flight Number: AA1524. (On Time performance: 89 - Average Delay: 9 minutes)
- Flight Number: AA1652. (On Time performance: 69 - Average Delay: 27 minutes)
- Flight Number: AA1854. (On Time performance: 71 - Average Delay: 45 minutes)
- Flight Number: AA1889. (On Time performance: 67 - Average Delay: 23 minutes)
- Flight Number: AA1937.
- Flight Number: AA2332. (On Time performance: 78 - Average Delay: 33 minutes)
- Flight Number: AA2456. (On Time performance: 60 - Average Delay: 78 minutes)
- Flight Number: AA2857. (On Time performance: 87 - Average Delay: 9 minutes)
- Flight Number: AA2901. (On Time performance: 67 - Average Delay: 28 minutes)
- Flight Number: AA2970.
- Flight Number: AA2974.
- Flight Number: AA3177. (On Time performance: 67 - Average Delay: 17 minutes)
- Flight Number: AA779. (On Time performance: 57 - Average Delay: 32 minutes)
- Flight Number: AA790.
- Flight Number: AA971. (On Time performance: 87 - Average Delay: 8 minutes)
Frontier Airlines
- Flight Number: F92111. (On Time performance: 70 - Average Delay: 35 minutes)
United Airlines
- Flight Number: UA1285.
- Flight Number: UA1316.
- Flight Number: UA1659. (On Time performance: 87 - Average Delay: 7 minutes)
- Flight Number: UA1801. (On Time performance: 80 - Average Delay: 27 minutes)
- Flight Number: UA2665. (On Time performance: 52 - Average Delay: 54 minutes)
- Flight Number: UA308. (On Time performance: 57 - Average Delay: 26 minutes)
- Flight Number: UA457. (On Time performance: 50 - Average Delay: 41 minutes)
- Flight Number: UA622. (On Time performance: 81 - Average Delay: 20 minutes)
American Airlines
- Flight Number: AA1181. (On Time performance: 67 - Average Delay: 23 minutes)
- Flight Number: AA1333. (On Time performance: 80 - Average Delay: 11 minutes)
- Flight Number: AA1452. (On Time performance: 79 - Average Delay: 28 minutes)
- Flight Number: AA1524. (On Time performance: 89 - Average Delay: 9 minutes)
- Flight Number: AA1652. (On Time performance: 69 - Average Delay: 27 minutes)
- Flight Number: AA1854. (On Time performance: 71 - Average Delay: 45 minutes)
- Flight Number: AA1889. (On Time performance: 67 - Average Delay: 23 minutes)
- Flight Number: AA1937.
- Flight Number: AA2332. (On Time performance: 78 - Average Delay: 33 minutes)
- Flight Number: AA2456. (On Time performance: 60 - Average Delay: 78 minutes)
- Flight Number: AA2857. (On Time performance: 87 - Average Delay: 9 minutes)
- Flight Number: AA2901. (On Time performance: 67 - Average Delay: 28 minutes)
- Flight Number: AA2970.
- Flight Number: AA2974.
- Flight Number: AA3177. (On Time performance: 67 - Average Delay: 17 minutes)
- Flight Number: AA779. (On Time performance: 57 - Average Delay: 32 minutes)
- Flight Number: AA790.
- Flight Number: AA971. (On Time performance: 87 - Average Delay: 8 minutes)
Frontier Airlines
- Flight Number: F92111. (On Time performance: 70 - Average Delay: 35 minutes)
United Airlines
- Flight Number: UA1285.
- Flight Number: UA1316.
- Flight Number: UA1659. (On Time performance: 87 - Average Delay: 7 minutes)
- Flight Number: UA1801. (On Time performance: 80 - Average Delay: 27 minutes)
- Flight Number: UA2665. (On Time performance: 52 - Average Delay: 54 minutes)
- Flight Number: UA308. (On Time performance: 57 - Average Delay: 26 minutes)
- Flight Number: UA457. (On Time performance: 50 - Average Delay: 41 minutes)
- Flight Number: UA622. (On Time performance: 81 - Average Delay: 20 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 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
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 UA321
Date
Departure
Arrival
Duration
Aircraft
Status
Saturday
20 December
20 December
08:20 am
Philadelphia (PHL)
Philadelphia (PHL)
09:48 am
Chicago (ORD)
Chicago (ORD)
02h 28min
Boeing 737MAX
Boeing 737MAX
Landed - Delayed
Friday
19 December
19 December
06:29 am
Philadelphia (PHL)
Philadelphia (PHL)
07:54 am
Chicago (ORD)
Chicago (ORD)
02h 25min
Boeing 737MAX
Boeing 737MAX
Landed - On-time