If you are looking for a flight offer from London Heathrow Airport to Atlanta, hunt for departures on Mondays and prevent leaving with a Friday, as it's always the priciest day. When flying again from Atlanta, Tuesday is the cheapest working day to fly and Saturday is the most costly. https://www.tumblr.com/businessclassflightdealstosydney/769189348113629184/how-to-select-the-right-christmas-vacation