August is the cheapest month to fly this route, with average fares around $1047 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $1289 | $1176 | Peak | |
| June 2026 | $1178 | $1029 | ||
| July 2026 | $1110 | $1037 | ||
| August 2026 | $1047 | $1037 | Best |
Departing on Tuesday offers the lowest average fares at $1106. Thursday departures are the most expensive at $1208, a difference of $102.
The best time to fly is August. Set up an alert and we'll notify you when prices drop.
Get Started Free →The cheapest month to fly from Atlanta to London is August, with average round-trip fares around $1047. The lowest fare found in August is $1037.
Tuesday departures are the cheapest, averaging $1106 round trip. The most expensive day is Thursday at $1208.
Based on current pricing trends, booking for August travel offers the best value. Avoid May if possible, as fares average $1289 compared to $1047 in the cheapest month. June is a solid middle-ground option at $1178.
Flying in August instead of May can save you approximately $242 per round trip. The cheapest month averages $1047 while the most expensive averages $1289.
Airlines, flight times, price calendar, and more for Atlanta to London
View ATL → LHR Details