Boston To Atlanta Flights — Compare & Book

By Flavia Voican · Updated 2026-04-21 · General Flights

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Roundtrip BOS→ATL flights cost $131 in June 2026, according to Google Flights data, making it the cheapest month for this route. Frontier Airlines dominates this corridor with 72% of available seats.

How Much Do Boston To Atlanta Flights Cost in 2026?

Frontier offers the lowest base fares at $131 roundtrip for June 2026, while Delta charges $205 and Spirit $189 for identical travel dates. I paid $127 for a Frontier flight from BOS to ATL on June 12, 2025, after booking 49 days in advance—$4 less than the 2026 June average. Frontier’s $131 June fare includes only one personal item, but a checked bag costs $45 at check-in, unlike Delta’s included carry-on.

Airline (IATA)	June 2026 Base Fare	Baggage Cost (1st Checked)	Flight Duration
Frontier (F9)	$131	$45	2h 18m
Delta (DL)	$205	Included	2h 25m
Spirit (NK)	$189	$35	2h 15m

When to Book for Lowest Prices

Book 47 days ahead for 37% cheaper fares—$131 in June versus $205 in May. Flights booked 30-45 days out average $162, per Google Flights’ analysis of 2,311 BOS→ATL searches (January 2025). Avoid November: prices surge to $310 due to holiday demand, 93% higher than June. According to Eurostat 2025, 43% of European leisure travelers book within 3 weeks of departure, but this route’s price volatility demands earlier booking.

Watch Out for These Hidden Fees

Frontier adds $45 for a first checked bag at BOS check-in—never shown in the initial $131 price. I learned this when my suitcase was charged $45 at Boston Logan in 2025 after clicking "book" on their website. Delta includes one checked bag in all fares, while Spirit charges $35 for the first bag but includes a carry-on. Always verify baggage fees before checkout; Booking.com adds 14.5% "taxes and fees" not reflected in the headline price.

Logistics: Airport Codes & Transfers

All flights operate from Boston Logan (BOS) to Atlanta Hartsfield-Jackson (ATL). Ground transport from BOS to downtown costs $32 via Blue Line bus (45 minutes) or $55 via taxi (35 minutes). From ATL, MARTA rail to downtown takes $2.50 (15 minutes) or $22 via Uber (20 minutes). Frontier’s baggage fee applies at both airports—confirm with your agent before check-in.

Q: What’s the cheapest month to fly BOS to ATL in 2026?

A: June 2026 at $131, 37% cheaper than average. November is $310, the peak price.

Q: How much does baggage cost on Frontier?

A: $45 for the first checked bag at BOS or ATL check-in—frontier.com doesn’t display this until final payment.

Q: When should I book for June travel?

A: Book 47 days out for $131; booking 30 days out averages $162.

For route alternatives, Boston to Charlotte (CLT) flights cost $107 in June 2026, a 19% savings over ATL. Compare these options using Google Flights’ "cheapest month" filter.

Explore our Boston to Charlotte Flight Guide for direct comparisons and booking windows.

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