SriLankan Airlines
UL503 Flight Status
According to Trip.com latest record on status for SriLankan Airlines flight UL503 from Colombo to London (CMB-LHR): Flights for Sep 12, 2026 are scheduled, with the next departure slated for 13:10 from CMB and an expected arrival at 20:00 at LHR .
Fri, Sep 11
Sat, Sep 12
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In Flight
Your flight has departed Colombo and is expected to arrive in London at 19:51.
11h 20m
Check-in Counter
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Boarding Gate
9
Arrival Gate
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Baggage
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Scheduled
Your flight will depart on time.
11h 20m
Check-in Counter
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Boarding Gate
--
Arrival Gate
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Baggage
--
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UL503
UL503 Aircraft Specifications
According to Trip.com real-time data, the UL503 flight from Colombo to London on 9/12/2026 is operated using the aircraft model Airbus A330-300. This aircraft has been in service for 10y, 11m. The aircraft has 297 seats.
Airbus A330-300
On-Time Departure
87
%
On-Time Arrival
93
%
Avg. Delay
0 minutes
Aircraft Age
10y, 11m
Total Seats
297
Flight Distance
--
Economy
Business
Cabin Amenities
Meal included
Seatback entertainment system
Wi-Fi (additional charge)
USB port and power outlet
Seat Information
--
Legroom
43 cm
Seat width
110°
Reclining Angle
2-4-2
Seat layout example
Cabin Amenities
Meal included
Seatback entertainment system
Wi-Fi (additional charge)
USB port and power outlet
Seat Information
--
Legroom
53 cm
Seat width
180°
Reclining Angle
Fully reclinable
1-2-1
Seat layout example
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UL503 Flight History
Trip.com historical records show that the last UL503 flight departed on Fri, Sep 11 from CMB at approximately 13:17. This flight is expected to arrrive in LHR at 19:51.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Sun, Sep 6 | Colombo (CMB) | London (LHR) | 333 | 13:18 | 20:03 | Arrived |
| Mon, Sep 7 | Colombo (CMB) | London (LHR) | 333 | 13:16 | 19:57 | Arrived |
| Tue, Sep 8 | Colombo (CMB) | London (LHR) | 333 | 13:25 | 19:24 | Diverted |
| Thu, Sep 10 | Colombo (CMB) | London (LHR) | 333 | 13:28 | 20:11 | Arrived |
| Fri, Sep 11 | Colombo (CMB) | London (LHR) | 333 | 13:17 | 19:51 | In Flight |
| Sat, Sep 12 | Colombo (CMB) | London (LHR) | 333 | 13:10 | 20:00 | Scheduled |
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UL503 On-Time Performance
Based on the average performance of this flight over the last 30 trips, the on-time departure rate of UL503 is 87% (Late on average 16 minutes), and the on-time arrival rate is 93% (Early on average 0 minutes).
On-Time Departures
Punctuality
87
%
Late on average
16 minutes
Early
3
%
On time
83
%
30 mins late
10
%
60 mins late
3
%
90 mins late
0
%
Cancelled
0
%
On-Time Arrivals
Punctuality
93
%
Early on average
0 minutes
Early
57
%
On time
37
%
30 mins late
7
%
60 mins late
0
%
90 mins late
0
%
Cancelled
0
%
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Flight FAQs
-
What is the current status of flight ul503?
Flight ul503 has not departed yet and is currently on schedule. Scheduled departure 13:10, arrival 20:00 (updated Sep 12, 2026). -
Is flight ul503 on time today?
Flight ul503 has not departed yet and is currently on schedule. Scheduled departure is 13:10, with arrival at 20:00. Recheck gate and timing before you head to the airport. -
Has flight ul503 departed yet? What is the departure time?
Flight ul503 is scheduled to depart at 13:10. The latest actual or estimated departure time is 13:10, and the current status is Scheduled (updated Sep 12, 2026). -
When is flight ul503 scheduled to arrive?
Flight ul503 is scheduled to arrive at 20:00. The latest estimated or actual arrival time is 20:00. Status is Scheduled as of Sep 12, 2026. -
What route does flight ul503 fly?
Flight ul503 is operated by SriLankan Airlines from Colombo (CMB) to London (LHR). Typical flight time is about 11 hours 20 minutes; operating days may include Saturday. -
How can I check real-time status for flight ul503?
Track flight ul503 on this Trip.com status page for live departure, arrival, gate and baggage updates. For push alerts on the go, open the same flight in the Trip.com App and turn on flight notifications. -
If flight ul503 is delayed or canceled, what should I do?
If ul503 is delayed or canceled, first confirm the latest status here (Scheduled, updated Sep 12, 2026). Contact SriLankan Airlines or your booking channel for rebooking or refund options, and check Trip.com Manage Booking if you booked on Trip.com. -
Has flight ul503 departed from Colombo?
Flight ul503 has not departed from Colombo (CMB) yet and is currently on schedule for 13:10. -
What is the seat configuration for flight ul503?
Flight ul503 usually flies a Airbus A330-300 with seat layout 2-4-2. Layouts can differ by aircraft subtype and cabin product—confirm your seat map in Manage Booking after you purchase.
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When You Land: London Weather & Time Zone
Partly clear
|
17°C - 23°C
Weather forecast for your arrival day
-4.5 hour time difference
Time on arrival: Colombo 00:30
|
London 20:00
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