If you are trying to find a flight offer from London Heathrow Airport to Atlanta, try to look for departures on Mondays and stay clear of leaving on the Friday, as it's usually the priciest day. When flying back again from Atlanta, Tuesday is definitely the cheapest day to fly https://www.scribd.com/document/822940254/5-Tips-to-Book-the-Best-Business-Class-Flights-to-Bangkok-Thailand