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

February 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

26 27 28 29 30 31 1$260 2$260 3$251 4$251 5$260 6$260 7$251 8$260 9$260 10$251 11$251 12$260 13$380 14$401 15$419 16$385 17$305 18$251 19$260 20$260 21$260 22$295 23$260 24$251 25$251 26$260 27$285 28$329 1$332

Fair Availability

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

Wednesday, February 18th, 2026

6 round-trip options

Returning

Mon, Feb 23, 2026•5 Day Trip

$305 USD

Google Flights

Returning

Tue, Feb 24, 2026•6 Day Trip

$251 USD

Google Flights

Returning

Wed, Feb 25, 2026•7 Day Trip

$251 USD

Google Flights

Returning

Thu, Feb 26, 2026•8 Day Trip

$260 USD

Google Flights

Returning

Fri, Feb 27, 2026•9 Day Trip

$285 USD

Google Flights

Returning

Sat, Feb 28, 2026•10 Day Trip

$325 USD

Google Flights