May is the cheapest month to fly this route, with average fares around $169 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $169 | $124 | Best | |
| June 2026 | $183 | $88 | ||
| July 2026 | $184 | $128 | ||
| August 2026 | $200 | $189 | Peak |
Departing on Tuesday offers the lowest average fares at $158. Sunday departures are the most expensive at $199, a difference of $41.
The best time to fly is May. Set up an alert and we'll notify you when prices drop.
Get Started Free →The cheapest month to fly from Atlanta to Boston is May, with average round-trip fares around $169. The lowest fare found in May is $124.
Tuesday departures are the cheapest, averaging $158 round trip. The most expensive day is Sunday at $199.
Based on current pricing trends, booking for May travel offers the best value. Avoid August if possible, as fares average $200 compared to $169 in the cheapest month. July is a solid middle-ground option at $184.
Flying in May instead of August can save you approximately $31 per round trip. The cheapest month averages $169 while the most expensive averages $200.
Airlines, flight times, price calendar, and more for Atlanta to Boston
View ATL → BOS Details