Cheap flights from Boston to Sugarloaf Key

View AU$91 flight on Tue, 21 Oct. 2025Opens in a new window

Popular airlines from Boston to Sugarloaf Key

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 35% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Boston (BOS) to Sugarloaf Key (MIA)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Thu, 14 Aug. - Thu, 21 Aug.
BOS
Boston
MIA
Miami
AU$211 Return, found 4 days ago
AU$211
Return
found 4 days ago
Select Spirit Airlines flight, departing Thu, 14 Aug. from Boston to Miami, returning Thu, 21 Aug., priced at AU$211 found 4 days ago
American Airlines
Sat, 25 Oct. - Mon, 27 Oct.
BOS
Boston
MIA
Miami
AU$217 Return, found 4 days ago
AU$217
Return
found 4 days ago
Select American Airlines flight, departing Sat, 25 Oct. from Boston to Miami, returning Mon, 27 Oct., priced at AU$217 found 4 days ago
Spirit Airlines
Thu, 14 Aug. - Tue, 19 Aug.
BOS
Boston
MIA
Miami
AU$231 Return, found 4 days ago
AU$231
Return
found 4 days ago
Select Spirit Airlines flight, departing Thu, 14 Aug. from Boston to Miami, returning Tue, 19 Aug., priced at AU$231 found 4 days ago
American Airlines
Wed, 13 Aug. - Thu, 14 Aug.
BOS
Boston
MIA
Miami
AU$243 Return, found 3 days ago
AU$243
Return
found 3 days ago
Select American Airlines flight, departing Wed, 13 Aug. from Boston to Miami, returning Thu, 14 Aug., priced at AU$243 found 3 days ago
Delta
Tue, 12 Aug. - Fri, 15 Aug.
BOS
Boston
MIA
Miami
AU$247 Return, found 4 days ago
AU$247
Return
found 4 days ago
Select Delta flight, departing Tue, 12 Aug. from Boston to Miami, returning Fri, 15 Aug., priced at AU$247 found 4 days ago
United
Tue, 12 Aug. - Wed, 13 Aug.
BOS
Boston
MIA
Miami
AU$323 Return, found 4 days ago
AU$323
Return
found 4 days ago
Select United flight, departing Tue, 12 Aug. from Boston to Miami, returning Wed, 13 Aug., priced at AU$323 found 4 days ago

Find the cheapest month to fly from Boston (BOS) to Miami (MIA)

March is typically the cheapest month to fly

From AU$81 - AU$507 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.