SriLankan Airlines
UL503 Flight status
According to Trip.com real-time data, the UL503 flight operated by SriLankan Airlines on Aug 29, 2026, flying from Colombo (CMB) to London (LHR), departed at 13:28 (local time in Colombo, UTC+5.5) and is expected to arrive at 19:55 (local time in London, UTC+1) at Heathrow Airport (LHR).
Fri, Aug 28
Sat, Aug 29
Sun, Aug 30
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Arrived
The flight has arrived 12m late
11h 20m
Check-in Counter
--
Boarding Gate
14
Arrival Gate
--
Baggage
2
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En route
Your flight has departed Colombo and is expected to arrive in London at 19:55.
11h 20m
Check-in Counter
--
Boarding Gate
R5
Arrival Gate
--
Baggage
--
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Scheduled
Your flight will depart on time.
11h 20m
Check-in Counter
--
Boarding Gate
--
Arrival Gate
--
Baggage
--
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Information provided by VariFlight
For real-time updates, please check airport displays or contact your airline.
You can also explore more flights from Colombo to London or track other flights with our flight status tracker.
Track the Previous Flight Status: Landed at Colombo
UL122
|
Chennai (MAA)
Colombo (CMB)
Colombo (CMB)
Scheduled: 11:20
|
6m early
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UL503 Aircraft Details
According to Trip.com real-time data, the UL503 flight from Colombo to London on 8/29/2026 is operated using the aircraft model Airbus A330-300. This aircraft has been in service for 10y, 8m. The aircraft has 297 seats.
Airbus A330-300
Punctuality (Departure)
83
%
Punctuality (Arrival)
90
%
Early on average
4 minutes
Age
10y, 8m
Seats
297
Flight Distance
--
Economy
Business
In-Flight Services
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
In-Flight Services
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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Flight History for UL503
Trip.com historical records show that the last UL503 flight departed on Fri, Aug 28 from CMB at approximately 13:31. This flight is expected to arrrive in LHR at 20:12.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Mon, Aug 24 | Colombo (CMB) | London (LHR) | 333 | 13:12 | 19:50 | Arrived |
| Tue, Aug 25 | Colombo (CMB) | London (LHR) | 333 | 13:23 | 20:08 | Arrived |
| Wed, Aug 26 | Colombo (CMB) | London (LHR) | 333 | 13:16 | 19:56 | Arrived |
| Thu, Aug 27 | Colombo (CMB) | London (LHR) | 333 | 13:25 | 20:32 | Arrived |
| Fri, Aug 28 | Colombo (CMB) | London (LHR) | 333 | 13:31 | 20:12 | Arrived |
| Sat, Aug 29 | Colombo (CMB) | London (LHR) | 333 | 13:28 | 19:55 | En route |
| Sun, Aug 30 | 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 83% (Late on average 19 minutes), and the on-time arrival rate is 90% (Early on average 4 minutes).
On-Time Departures
Punctuality
83
%
Late on average
19 minutes
Early
0
%
On time
83
%
30 mins late
10
%
60 mins late
7
%
90 mins late
0
%
Cancelled
0
%
On-Time Arrivals
Punctuality
90
%
Early on average
4 minutes
Early
73
%
On time
17
%
30 mins late
10
%
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 departed (status: En route). Departure 13:28, estimated arrival 19:55 (updated Aug 29, 2026). -
Is flight ul503 on time today?
Flight ul503 has already departed (status: En route). It took off at 13:28 and is estimated to arrive at 19:55. -
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 13:28, and the current status is En route (updated Aug 29, 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 19:55. Status is En route as of Aug 29, 2026. -
What is the gate information for flight ul503?
For flight ul503, the departure terminal is T1 and the boarding gate is R5. Gate assignments can change at short notice—confirm on airport screens before heading to security. -
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 (En route, updated Aug 29, 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 departed from Colombo (CMB) at 13:28 (status: En route). -
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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Arrival Info: London Weather & Current Time
Mostly cloudy
|
15°C - 19°C
Weather forecast for your arrival day
-4.5 hour time difference
Time on arrival: Colombo 00:25
|
London 19:55
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