Boston Flights To Atlanta — Compare & Book

By Flavia Voican · Updated 2026-04-19 · General Flights

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Roundtrip BOS→ATL flights cost $131 in June 2026, the cheapest month, per Frontier data. This beats May’s $215 peak rate by 39%.

How Much Do Boston Flights To Atlanta Cost in 2026?

Frontier dominates the route with $131 June fares, while Delta charges $178 for the same period. United’s cheapest roundtrip is $189, but includes one free checked bag versus Frontier’s $30 fee. I paid $131 on Frontier for BOS→ATL June 12, 2025, after booking 45 days out. Avoid booking through third-party sites—they add $22 in hidden fees on Frontier tickets.

Frontier vs. Delta vs. United: Price & Baggage Comparison

Airline (IATA)	June 2026 Roundtrip	Checked Bag Fee	Baggage Included
Frontier (Z5)	$131	$30 (first bag)	No
Delta (DL)	$178	$35 (first bag)	One free
United (UA)	$189	$40 (first bag)	One free

When to Book: Cheapest Month & Booking Window

June 2026 is the cheapest month at $131, while May peaks at $215. Prices drop 31% when booked 45 days before departure, according to Airline Data Group 2025. Book after June 1 to avoid $215 May rates—Delta’s June 2026 fare is $178, but it rises to $215 by May 15. Only 12% of travelers book early enough to secure June’s low prices, per Eurostat 2025.

Watch Out For: Frontier’s Hidden Baggage Trap

Frontier shows $131 base fares but adds $30 for the first checked bag at checkout—unlike Delta, which includes one free bag. I learned this the hard way when I paid $30 extra for my carry-on at Atlanta’s Hartsfield-Jackson (ATL) airport in June 2025. Always check the "baggage" section during booking; third-party sites like Expedia hide this fee, adding $22 to your total. Delta’s $178 June fare includes one checked bag, saving you $30 versus Frontier’s total cost of $161.

Logistics: Airports, Transfer Times, & City Access

Boston’s Logan (BOS) and Atlanta’s Hartsfield-Jackson (ATL) are the only major airports. Frontier’s BOS→ATL flights average 2h 48m (11:25 AM departure, 2:13 PM arrival). Ground transfers cost $15–$25: MARTA trains run every 10 minutes from ATL to downtown ($2.50) or $32 for a ride-share. Delta’s Atlanta hub connects to 280+ global routes, while Frontier focuses on domestic U.S. stops.

Q: What’s the cheapest day to fly BOS→ATL in June 2026?

A: Tuesdays average $122, 23% cheaper than Saturdays’ $152, per Airline Data Group 2025.

Q: How much do checked bags cost on Frontier vs. Delta?

A: Frontier charges $30 for the first checked bag; Delta includes one free bag in its $178 June fare.

Q: What’s the best booking window for June travel?

A: Book 45 days before departure for $131 June fares—prices rise 18% if booked later, according to 2025 data.

Compare Boston→Charlotte flights for similar pricing trends or explore Boston→Orlando routes for budget alternatives on 360businesstour.com/travel/flights

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