Cheap flights from Atlanta to the United Kingdom from £172

The cheapest month to fly to United Kingdom from Atlanta is in January. Flight prices, which tend to average around £617, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of January, then departing from Atlanta during the month March is also very affordable. Most momondo users find prices during this month for around £618.

The cheapest day to depart from Atlanta to United Kingdom is on a Tuesday. Travellers who choose to depart for United Kingdom on a Tuesday will often find tickets for as low as £663. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Atlanta to United Kingdom for around £823.

The cheapest time of day to fly to United Kingdom is in the evening when flights can be purchased for as low as £712. Try not to purchase tickets in the afternoon because they tend to be around £749. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Atlanta Hartsfield-Jackson to London Heathrow for the best Atlanta Hartsfield-Jackson - United Kingdom flight prices

You are more likely to see cheaper flights to United Kingdom from Atlanta when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £742 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from Atlanta for as low as £691 on momondo.

There are 3 cabin classes available to choose from on Atlanta to United Kingdom flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

British Airways, JetBlue, and American Airlines are the most popular carriers operating from Atlanta Hartsfield-Jackson to United Kingdom

Virgin Atlantic, KLM and British Airways are the top three most popular airlines that fly to United Kingdom from Atlanta according to our data. Virgin Atlantic is the first choice among our users, with 60% of people opting to fly with this airline when travelling to United Kingdom. Keep in mind that there are 7 different airlines that fly to United Kingdom on a routine basis, so you have a few additional options to choose from.

Historically, on average around 13% of flights between Atlanta and United Kingdom have experienced a delay on any given week. The average delay length over the past 12 months has been 129 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the morning have, in the past, seen delays more frequently in comparison.

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Virgin Atlantic have had the fewest delays on this route over the last 12 months, with about 10% of their flights experiencing any sort of delay.

As of September 2026, there are 34 flights per day flying from Atlanta to United Kingdom. The most common time of day flights depart is 22:00, with 80% of flights taking off in the evening.

The number of flights available between Atlanta and United Kingdom is 244 per week as of September 2026. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.