Flights to The Dakotas from St. Louis - $100

View $100 flight on Sat, Aug 30, 2025Opens in a new window

Popular airlines from St. Louis to The Dakotas

  • United

    United

  • Delta

    Delta

  • American Airlines

    American Airlines

  • Frontier Airlines

    Frontier Airlines

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Cheap Flights from St. Louis to The Dakotas (STL-FSD)

Prices were available within the past 7 days and start at $100 for one-way flights and $199 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, Aug 30 - Sun, Aug 31
STL
St. Louis
FSD
Sioux Falls
$199 Roundtrip, found 3 days ago
$199
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Aug 30 from St. Louis to Sioux Falls, returning Sun, Aug 31, priced at $199 found 3 days ago
American Airlines
Sat, Aug 30 - Tue, Sep 2
STL
St. Louis
FSD
Sioux Falls
$214 Roundtrip, found 3 days ago
$214
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sat, Aug 30 from St. Louis to Sioux Falls, returning Tue, Sep 2, priced at $214 found 3 days ago
United
Sat, Aug 30 - Tue, Sep 2
STL
St. Louis
FSD
Sioux Falls
$214 Roundtrip, found 3 days ago
$214
Roundtrip
found 3 days ago
Select United flight, departing Sat, Aug 30 from St. Louis to Sioux Falls, returning Tue, Sep 2, priced at $214 found 3 days ago
American Airlines
Wed, Oct 29 - Fri, Oct 31
STL
St. Louis
FSD
Sioux Falls
$225 Roundtrip, found 22 hours ago
$225
Roundtrip
found 22 hours ago
Select American Airlines flight, departing Wed, Oct 29 from St. Louis to Sioux Falls, returning Fri, Oct 31, priced at $225 found 22 hours ago
American Airlines
Wed, Oct 29 - Fri, Oct 31
STL
St. Louis
FSD
Sioux Falls
$226 Roundtrip, found 22 hours ago
$226
Roundtrip
found 22 hours ago
Select American Airlines flight, departing Wed, Oct 29 from St. Louis to Sioux Falls, returning Fri, Oct 31, priced at $226 found 22 hours ago
Frontier Airlines
Tue, Aug 26 - Mon, Sep 8
STL
St. Louis
FAR
Fargo
$240 Roundtrip, found 6 days ago
$240
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Tue, Aug 26 from St. Louis to Fargo, returning Mon, Sep 8, priced at $240 found 6 days ago

Find the cheapest month to fly from St. Louis (STL) to Rapid City (RAP)

September is typically the cheapest month to fly

From $248 - $486 per traveler.

Graph displaying average flight prices per month

Alternative airports

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Rapid City Regional RAP. Flights from $324
RAP
Rapid City Regional
Flights from $324
Select flight to Sioux Falls Regional FSD. Flights from $259
FSD
Sioux Falls Regional
Flights from $259
Select flight to Hector Intl. FAR. Flights from $409
FAR
Hector Intl.
Flights from $409
Select flight to Minot Intl. MOT. Cheapest option available. Flights from $243
MOT
Minot Intl.
Cheapest
Flights from $243
Select flight to Bismarck Municipal BIS. Flights from $254
BIS
Bismarck Municipal
Flights from $254
Select flight to Grand Forks Intl. GFK. Flights from $294
GFK
Grand Forks Intl.
Flights from $294
Select flight to Williston, ND (XWA-Basin Intl.) XWA. Flights from $478
XWA
Williston, ND (XWA-Basin Intl.)
Flights from $478
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