Boston (BOS) to Sioux Falls (FSD) flight deal from $251 USD in economy class

AAAmerican Airlines

Round Trip•Economy

BOS

Logan International Airport

Boston, United States

FSD

Sioux Falls Regional Airport (Joe Foss Field)

Sioux Falls, United States

$409 USD

-39%$251 USD

Verified Nov 28, 2025 at 2:46 PM

December 2025

Today

Mon

Tue

Wed

Thu

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Sat

Sun

1$439 2$439 3$439 4$404 5$365 6$365 7$365 8$365 9$339 10$339 11$339 12$304 13$260 14$347 15$347 16$322 17$439 18$474 19$474 20$794 21$585 22$623 23$554 24$587 25$545 26$571 27$625 28$579 29$370 30$369 31$335 1$260 2$269 3$294 4$269

Fair Availability

23% of dates checked are available within 10% of the lowest price

Tuesday, December 16th, 2025

6 round-trip options

Returning

Sun, Dec 21, 2025•5 Day Trip

$322 USD

Google Flights

Returning

Mon, Dec 22, 2025•6 Day Trip

$439 USD

Google Flights

Returning

Tue, Dec 23, 2025•7 Day Trip

$424 USD

Google Flights

Returning

Wed, Dec 24, 2025•8 Day Trip

$439 USD

Google Flights

Returning

Thu, Dec 25, 2025•9 Day Trip

$484 USD

Google Flights

Returning

Fri, Dec 26, 2025•10 Day Trip

$553 USD

Google Flights