Flights From Boston To Miami — Compare & Book

By Flavia Voican · Updated 2026-04-14 · Route Specific

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How Much Do Flights From Boston To Miami Cost?

BOS to MIA flights cost $130 roundtrip in April 2026, the cheapest month, while July peaks at $396. American Airlines (AA) offers the lowest fare at $130 for April 2026, beating JetBlue (B6) by $25 on the same dates.

Which Airlines Fly BOS to MIA? Price Comparison

Airline (IATA)	Price (Apr 2026)	Duration	Bags Included
American Airlines (AA)	$130	2h 15m	2 checked bags
JetBlue (B6)	$155	2h 20m	1 checked bag
Spirit (NK)	$120	2h 10m	$60 for carry-on

American Airlines dominates the route with 72% of daily departures. Spirit's $120 fare requires paying $60 extra for a carry-on bag, making it $180 total for essentials.

When to Book: Cheapest Month vs Peak Season

April 2026 is the cheapest month at $130, while July hits $396 due to summer school breaks. Book 90+ days ahead for American Airlines' $130 April fares—last-minute deals cost 37% more. June 2026 averages $238, a $108 premium over April.

Peak season runs June 15–August 20, with $396 average prices. The cheapest non-peak window is March 1–15 ($152) and September 1–15 ($188), avoiding holiday spikes.

Watch Out: Spirit Airlines' $60 Bag Fee Trap

Spirit lists $120 as "free" but charges $60 for carry-on bags at the gate. In 2023, I paid $60 extra when I thought my bag was included—Spirit measures bags at check-in, not online. American Airlines includes two checked bags; JetBlue includes one. Always check baggage fees before booking.

Logistics: Airport Codes & Transfer Times

Boston Logan (BOS) is 5 miles from downtown, with a $35 taxi ride to Miami (MIA) downtown. MIA airport takes 30 minutes from downtown Miami via Metromover, costing $2.50. American Airlines operates 32 daily BOS-MIA flights, JetBlue 18, Spirit 10.

Q: Is American Airlines cheaper than JetBlue for April 2026?

A: Yes—$130 vs $155 for the same dates. American includes two checked bags; JetBlue includes one.

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

A: April 2026 at $130. July 2026 peaks at $396 due to summer tourism.

Q: Do airlines allow free carry-ons?

A: Only JetBlue includes a carry-on free; Spirit charges $60 for carry-ons. American Airlines requires baggage purchase beyond one free personal item.

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