Sri Lanka Airlines, a OneWorld Alliance member located in Sri Lanka, primarily flies to regional destinations within South Asia. Sri Lanka Airlines also has flights to numerous cities in East Asia and a few select cities in Europe.

[first]
To search for award space on X, you will need to use the British Airways website, which is a partner of X.
Log in to your Executive account on British Airways. If you don’t have an account yet, click this link to sign up:

Click Executive Club then click Spending Avios

On the Spending Avios page, under Choose your Reward, click Book a reward flight

On the Book Flights with Avios page, enter all the necessary information for your trip:
After filling out all the necessary information, click Get Flights

If you get a prompt that says Changes to reward flight fare prices, check the box to agree to the terms and conditions, and click Continue.

If a pop-up appears asking if you want to add a stopover for your flight, click No, I want to continue without stopovers and Continue.
Write down any available award space; make sure to include flight number, dates, and cabin class. If you would like to change the date, you can click on the dates within the week or select the change button.

Call the frequent flier program you are trying to redeem your miles on and ask to speak to an agent. Once he or she is on the line, state the flights you’ve found available award space on and they should be able to book the award for you.