UL503 SriLankan Airlines - Flight Status
Below, you can find details about SriLankan Airlines flight UL503, which currently operates between the airports of Colombo - Colombo Bandaranaike International Airport (Airport Code CMB) and London - London Heathrow Airport (Airport Code LHR).
This flight data pertains specifically to the flight's details for Tuesday, December 30, 2025.
Table of contents:
Flight Status Codeshare Flights Additional Information Alternative Flights Punctuality and delays Last Past Flights UL503
Flight Status Codeshare Flights Additional Information Alternative Flights Punctuality and delays Last Past Flights UL503
UL503 On Time performance:
82
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
UL503 SriLankan Airlines to London
En Route - On-time
Flight Status for Tuesday December 30, 2025
This flight was also scheduled for Yesterday (December 29, 2025). See it here
This flight is also scheduled for Tomorrow (December 31, 2025). See it here
En Route - On-time
Flight Status for Tuesday December 30, 2025
Airline information
SriLankan Airlines
Equipment: Airbus A330-300
Departure
Colombo (CMB)
December 30, 2025
Colombo Bandaranaike International Airport
Departed at:
12:58
Gate:
-
Scheduled Departure Time: 12:50
Arrival
London (LHR)
December 30, 2025
London Heathrow Airport
Estimated Arrival Time:
18:50
Terminal:
3
Gate:
-
Scheduled Arrival Time: 19:10
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.colombo-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:
- AC6887 - Air Canada
Additional Information
Which is the frequency of flight UL503?
The flight UL503 is scheduled to flight on daily basis.
Which is the distance of flight UL503?
The distance between the two airports is 8718 kilometers.
Which is the flight time of flight UL503?
The scheduled flight time gate to gate is: 11:50 hours.
The real flight time gate to gate on average is: 11:32 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 Colombo: 2025-12-30 22:00:47
Current Time in London: 2025-12-30 16:30:47
The flight UL503 is scheduled to flight on daily basis.
Which is the distance of flight UL503?
The distance between the two airports is 8718 kilometers.
Which is the flight time of flight UL503?
The scheduled flight time gate to gate is: 11:50 hours.
The real flight time gate to gate on average is: 11:32 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 Colombo: 2025-12-30 22:00:47
Current Time in London: 2025-12-30 16:30:47
Alternative Flights
The following airline serve the same route between Colombo and London:
SriLankan Airlines - Flight Number: UL505. (On Time performance: 88 - Average Delay: 37 minutes)
SriLankan Airlines - Flight Number: UL505. (On Time performance: 88 - Average Delay: 37 minutes)
Punctuality and delays
We have gathered data from recent months and present below an analysis of how timely the flights have been.
Delays analyzed by Weekday: We have gathered available data from last six months, spanning from June 27, 2025 to December 26, 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 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.
In terms of On-Time Performance, by analyzing the flight data from the last three months, spanning from September 27, 2025 to December 26, 2025, we have obtained these figures.
Total number of flights: 91
On Time: 75 ( 82 % )
Moderate Delay: 7 ( 8 % )
Significant Delay: 3 ( 3 % )
Major Delay: 6 ( 7 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )
Average Delay: 11 minutes.
Total number of flights: 91
On Time: 75 ( 82 % )
Moderate Delay: 7 ( 8 % )
Significant Delay: 3 ( 3 % )
Major Delay: 6 ( 7 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )
Average Delay: 11 minutes.
Last Past Flights UL503
Date
Departure
Arrival
Duration
Aircraft
Status
Monday
29 December
29 December
13:08
Colombo (CMB)
Colombo (CMB)
19:34
London (LHR)
London (LHR)
11h 56min
Airbus A330-30
Airbus A330-30
Landed - Delayed
Sunday
28 December
28 December
13:03
Colombo (CMB)
Colombo (CMB)
19:30
London (LHR)
London (LHR)
11h 57min
Airbus A330-30
Airbus A330-30
Landed - Delayed
Saturday
27 December
27 December
12:58
Colombo (CMB)
Colombo (CMB)
18:57
London (LHR)
London (LHR)
11h 29min
Airbus A330-30
Airbus A330-30
Landed - On-time
Friday
26 December
26 December
13:47
Colombo (CMB)
Colombo (CMB)
19:28
London (LHR)
London (LHR)
11h 11min
Airbus A330-30
Airbus A330-30
Landed - Delayed
Thursday
25 December
25 December
13:11
Colombo (CMB)
Colombo (CMB)
18:52
London (LHR)
London (LHR)
11h 11min
Airbus A330-30
Airbus A330-30
Landed - On-time
Wednesday
24 December
24 December
12:53
Colombo (CMB)
Colombo (CMB)
18:44
London (LHR)
London (LHR)
11h 21min
Airbus A330-30
Airbus A330-30
Landed - On-time
Tuesday
23 December
23 December
13:21
Colombo (CMB)
Colombo (CMB)
19:05
London (LHR)
London (LHR)
11h 14min
Airbus A330-30
Airbus A330-30
Landed - On-time
Monday
22 December
22 December
13:26
Colombo (CMB)
Colombo (CMB)
19:14
London (LHR)
London (LHR)
11h 18min
Airbus A330-30
Airbus A330-30
Landed - On-time
Sunday
21 December
21 December
13:15
Colombo (CMB)
Colombo (CMB)
18:51
London (LHR)
London (LHR)
11h 06min
Airbus A330-30
Airbus A330-30
Landed - On-time
Saturday
20 December
20 December
12:58
Colombo (CMB)
Colombo (CMB)
18:52
London (LHR)
London (LHR)
11h 24min
Airbus A330-30
Airbus A330-30
Landed - On-time