Originally Posted by
A380.Q400
If you click on "departure airport" in the flights section, a dropdown will appear with a list of UK airports. At the top of the dropdown you will see two tabs - "UK Airports" and "Overseas Airports". The website automatically opens the "UK Airports" tab, but if you click on the "Overseas Airports" tab then it will bring up all of their non-UK airports.
Thanks to you and Skyhawk for pointing this out. I stand corrected.