British Airways' latest promotion is out, and I give them credit for how long the promotional period is. For every adult that buys a ticket between selected routes, 2 children can fly free. BA's promotion page is here.
You must buy your tickets before 1st October 2017 and fly between 1st June – 31st October 2017. Do remember that if you are a British Airways Executive Club member with Bronze, Silver or Gold status, you can select your seats for free on Hand Baggage Only fares starting 14th June 2017.
The routes selected for this promotion are rather limited. The promotional fare applies to one way or return flights between London Heathrow and:
- Belfast, and
- Billund, Denmark.
More information about the promotion and its T&Cs can be found here.