Cheap flights from Atlanta to London from $176

The cheapest month to fly to London from Atlanta is in October. Flight prices, which tend to average around $676, are often lower during this time because this is during the off-season. The month of November is another great option to travel to London, with average flight prices from Atlanta averaging around $717.

The cheapest day to depart from Atlanta to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $813. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $960. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

Flying to London from Atlanta in the evening is the least expensive time of day to depart. momondo users have found prices as low as $841 when looking at flights departing in the evening. Flights to London are more costly in the afternoon, with an average ticket price of $945. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to London from Atlanta when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $860 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Atlanta for as low as $803 on momondo.

There are 4 cabin classes available to choose from on Atlanta Hartsfield-Jackson to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Atlanta to London.

As of February 2026, prices for Atlanta to London flights are approximately 17% cheaper when compared to flights at the same time last year.

Historically, on average around 17% of flights between Atlanta and London have experienced a delay on any given week. The average delay length over the past 12 months has been 140 minutes.

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

Sunday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, Virgin Atlantic have had the least number of delays on this route over the last 12 months; with about 9% of their flights experiencing any sort of delay.

Copenhagen (CPH) was the most common stop: 39% of momondo users choosing 1-stop flights on this route connected there.

Flights via New York (JFK) offer the lowest average round-trip price of $440.

Flights connecting via Amsterdam (AMS) have the shortest average one-way travel time: 11h 35m.

Frankfurt am Main (FRA) has the shortest average layover time for this route: 1h 34m.

The number of flights available between Atlanta and London is 23 per day as of February 2026. The most frequent departure time is 10:00PM, with 82% of daily flights leaving in the evening.

The number of flights available between Atlanta and London is 161 per week as of February 2026. The most frequent departure day is Wed, with 15% of weekly flights leaving on this day.