Cheap flights from Denver to South Sioux Falls

View AU$325 flight on Tue, 9 Sep. 2025Opens in a new window

Popular airlines from Denver to South Sioux Falls

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

  • 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 Denver (DEN) to South Sioux Falls (FSD)

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.

American Airlines
Tue, 9 Sep. - Tue, 16 Sep.
DEN
Denver
FSD
Sioux Falls
AU$301 Return, found 1 day ago
AU$301
Return
found 1 day ago
Select American Airlines flight, departing Tue, 9 Sep. from Denver to Sioux Falls, returning Tue, 16 Sep., priced at AU$301 found 1 day ago
American Airlines
Tue, 9 Sep. - Tue, 16 Sep.
DEN
Denver
FSD
Sioux Falls
AU$355 Return, found 1 day ago
AU$355
Return
found 1 day ago
Select American Airlines flight, departing Tue, 9 Sep. from Denver to Sioux Falls, returning Tue, 16 Sep., priced at AU$355 found 1 day ago
United
Tue, 9 Sep. - Tue, 16 Sep.
DEN
Denver
FSD
Sioux Falls
AU$378 Return, found 1 day ago
AU$378
Return
found 1 day ago
Select United flight, departing Tue, 9 Sep. from Denver to Sioux Falls, returning Tue, 16 Sep., priced at AU$378 found 1 day ago
American Airlines
Tue, 9 Sep. - Tue, 16 Sep.
DEN
Denver
FSD
Sioux Falls
AU$393 Return, found 1 day ago
AU$393
Return
found 1 day ago
Select American Airlines flight, departing Tue, 9 Sep. from Denver to Sioux Falls, returning Tue, 16 Sep., priced at AU$393 found 1 day ago
American Airlines
Tue, 9 Sep. - Tue, 16 Sep.
DEN
Denver
FSD
Sioux Falls
AU$408 Return, found 1 day ago
AU$408
Return
found 1 day ago
Select American Airlines flight, departing Tue, 9 Sep. from Denver to Sioux Falls, returning Tue, 16 Sep., priced at AU$408 found 1 day ago
Delta
Tue, 9 Sep. - Tue, 16 Sep.
DEN
Denver
FSD
Sioux Falls
AU$415 Return, found 1 day ago
AU$415
Return
found 1 day ago
Select Delta flight, departing Tue, 9 Sep. from Denver to Sioux Falls, returning Tue, 16 Sep., priced at AU$415 found 1 day ago

Find the cheapest month to fly from Denver (DEN) to Sioux Falls (FSD)

September is typically the cheapest month to fly

From AU$74 - AU$313 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.