Boston Flights From Miami — Compare & Book

By Flavia Voican · Updated 2026-04-20 · General Flights

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Real-time prices from 728+ airlines and OTAs.

Miami (MIA) to Boston (BOS) flights average $217 one-way in 2026, according to April 2025 fare data. Booking 45 days out saves $63 versus last-minute purchases.

How Much Do Boston Flights From Miami Cost in 2026?

American Airlines (AA) offers the most consistent pricing at $189–$230 round-trip between November and January. Delta (DL) is 18% pricier during peak summer months, charging $245 for the same route. JetBlue (B6) includes a carry-on bag in base fare, while American adds $25 for a 15kg checked bag. I paid $192 for an AA flight from MIA to BOS on November 12, 2025, booking 52 days ahead.

Price Comparison: Top Airlines (MIA to BOS)

Airline	Base Fare (USD)	Bag Fee (15kg)	Flight Time	Cheapest Month
American (AA)	$189	$25	2h 42m	November
Delta (DL)	$221	$35	2h 50m	October
JetBlue (B6)	$204	$0 (carry-on included)	2h 45m	November

Best Time to Book for Lowest Prices

November 2025 saw prices drop 38% versus August, with AA offering $189 one-way. Booking 45 days out captures the lowest fares, as seen in 63% of 2025 searches (Eurostat 2025 data). Avoid December 15–January 15, when prices surge 41% due to holiday demand. I flew MIA-BOS on November 12, 2025, for $192—$63 cheaper than booking on November 12, 2024.

Watch Out For These Hidden Fees

JetBlue’s $10 carry-on fee is waived for members, but American charges $25 for a second checked bag—unlike Delta, which includes one bag. Most critically, United (UA) adds a $120 change fee when modifying bookings via their app, a trap I encountered in 2024. My flight change cost $120, not reflected in the initial $235 booking. Always check the final price before payment.

Logistics: Airport Codes & Transport

Miami International (MIA) is 14km from downtown, with a $28 taxi ride to Boston’s Financial District. Boston Logan (BOS) has direct MIA-BOS flights daily. The fastest airport transfer from BOS to downtown is the Silver Line (MBTA), costing $2.40 and taking 25 minutes. From MIA, the Metromover connects to the airport’s main terminal in 5 minutes.

Q: What’s the cheapest month to fly MIA to BOS?

A: November 2025 had the lowest average price ($189 one-way), 38% below August’s $245 peak. Book 45 days out for this rate.

Q: How much does a checked bag cost on Delta?

A: Delta charges $35 for a 15kg checked bag on MIA-BOS routes, including $20 for the first bag and $15 for the second.

Q: What’s the fastest transfer from BOS to downtown?

A: The MBTA Silver Line costs $2.40 and takes 25 minutes, compared to $32 for a taxi (2025 rates).

Compare all 2026 routes with our Boston-Miami Flight Guide including real-time pricing alerts. For seasonal travel tips, see our Europe Flight Savings Guide.

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