Cheap Flights to Knox County from $33

Popular airlines to Knox County

  • American Airlines

    American Airlines

  • United

    United

  • Southwest Airlines

    Southwest Airlines

  • Delta

    Delta

  • Frontier Airlines

    Frontier Airlines

  • JetBlue Airways

    JetBlue Airways

  • Alaska Airlines

    Alaska Airlines

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Top Cities to Visit in Knox County

Niobrara featuring landscape views and tranquil scenes
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Niobrara

Niobrara

How much is the cheapest flight to Knox County?

Prices were available within the past 7 days and start at $33 for one-way flights and $66 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Oct 23 - Mon, Oct 27
DEN
Denver
FSD
Sioux Falls
$66 Roundtrip, just found
$66
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Oct 23 from Denver to Sioux Falls, returning Mon, Oct 27, priced at $66 just found
Frontier Airlines
Thu, Dec 4 - Sun, Dec 7
DEN
Denver
FSD
Sioux Falls
$82 Roundtrip, found 2 days ago
$82
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Thu, Dec 4 from Denver to Sioux Falls, returning Sun, Dec 7, priced at $82 found 2 days ago
Frontier Airlines
Fri, Oct 17 - Mon, Oct 20
DEN
Denver
FSD
Sioux Falls
$85 Roundtrip, found 8 hours ago
$85
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Fri, Oct 17 from Denver to Sioux Falls, returning Mon, Oct 20, priced at $85 found 8 hours ago
Frontier Airlines
Thu, Oct 23 - Mon, Nov 3
DEN
Denver
FSD
Sioux Falls
$89 Roundtrip, found 3 days ago
$89
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Thu, Oct 23 from Denver to Sioux Falls, returning Mon, Nov 3, priced at $89 found 3 days ago
Frontier Airlines
Fri, Oct 24 - Mon, Nov 10
ORD
Chicago
FSD
Sioux Falls
$158 Roundtrip, found 3 days ago
$158
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Fri, Oct 24 from Chicago to Sioux Falls, returning Mon, Nov 10, priced at $158 found 3 days ago
Frontier Airlines
Thu, Oct 30 - Thu, Nov 6
IAH
Houston
FSD
Sioux Falls
$163 Roundtrip, found 21 hours ago
$163
Roundtrip
found 21 hours ago
Select Frontier Airlines flight, departing Thu, Oct 30 from Houston to Sioux Falls, returning Thu, Nov 6, priced at $163 found 21 hours ago
American Airlines
Sat, Dec 6 - Wed, Dec 10
DEN
Denver
FSD
Sioux Falls
$169 Roundtrip, found 3 days ago
$169
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sat, Dec 6 from Denver to Sioux Falls, returning Wed, Dec 10, priced at $169 found 3 days ago
Delta
Tue, Oct 28 - Wed, Oct 29
DEN
Denver
FSD
Sioux Falls
$179 Roundtrip, found 3 days ago
$179
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Oct 28 from Denver to Sioux Falls, returning Wed, Oct 29, priced at $179 found 3 days ago
United
Wed, Oct 22 - Thu, Oct 30
DEN
Denver
FSD
Sioux Falls
$184 Roundtrip, found 1 day ago
$184
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 22 from Denver to Sioux Falls, returning Thu, Oct 30, priced at $184 found 1 day ago
Alaska Airlines
Tue, Dec 30 - Wed, Jan 14
SEA
Seattle
FSD
Sioux Falls
$349 Roundtrip, found 1 hour ago
$349
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Tue, Dec 30 from Seattle to Sioux Falls, returning Wed, Jan 14, priced at $349 found 1 hour ago

Fargo Hector International Airport offers nonstop flights to cities across the US. From ski trips to golf getaways to a week on the beach, it's all within reach when you fly FAR.

Plan your trip and fly nonstop from Fargo to Atlanta, Chicago, Dallas, Denver, Las Vegas, Minneapolis/St. Paul, Nashville, and Phoenix-Mesa, with seasonal service to Orlando, Phoenix-Sky Harbor, and St. Pete–Clearwater.

Take advantage of our convenient new parking garage with affordable rates. Enjoy short lines, a simple terminal, and fast check-ins. From parking to boarding, it's smooth every step of the way.

Knox County Flights Information

Airlines serving
Frontier Airlines, United, Delta, American Airlines, Alaska Airlines
Roundtrip price
from $66

Trending flights to Knox County

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Oct 23 - Mon, Oct 27
DEN
Denver
FSD
Sioux Falls
$66 Roundtrip, just found
$66
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Oct 23 from Denver to Sioux Falls, returning Mon, Oct 27, priced at $66 just found
*Available to One Key members.