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

$408 USD

-38%$251 USD

Verified Nov 3, 2025 at 9:27 AM

December 2025

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

1$530 2$251 3$251 4$260 5$260 6$251 7$260 8$260 9$251 10$251 11$260 12$260 13$325 14$325 15$325 16$340 17$404 18$407 19$585 20$539 21$572 22$585 23$470 24$531 25$370 26$367 27$445 28$334 29$367 30$334 31$305 1 2 3 4

Fair Availability

22% of dates checked are available within 10% of the lowest price

Wednesday, December 31st, 2025

6 round-trip options

Returning

Mon, Jan 5, 2026•5 Day Trip

$399 USD

Google Flights

Returning

Tue, Jan 6, 2026•6 Day Trip

$305 USD

Google Flights

Returning

Wed, Jan 7, 2026•7 Day Trip

$305 USD

Google Flights

Returning

Thu, Jan 8, 2026•8 Day Trip

$305 USD

Google Flights

Returning

Fri, Jan 9, 2026•9 Day Trip

$325 USD

Google Flights

Returning

Sat, Jan 10, 2026•10 Day Trip

$312 USD

Google Flights