Cheap Flights to Clinton County from $40

View $40 flight on Wed, Jul 15, 2026Opens in a new window

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Popular airlines to Clinton County

  • American Airlines

  • Delta

  • United

  • Southwest Airlines

  • Frontier Airlines

  • Alaska Airlines

  • Air Canada

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How much is the cheapest flight to Clinton County?

Prices were available within the past 7 days and start at $40 for one-way flights and $84 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Wed, Jul 15 - Tue, Jul 21
DEN
Denver
STL
St. Louis
$84 Roundtrip, just found
$84
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Jul 15 from Denver to St. Louis, returning Tue, Jul 21, priced at $84 just found
Frontier Airlines
Tue, Aug 11 - Wed, Aug 19
DEN
Denver
STL
St. Louis
$88 Roundtrip, found 13 hours ago
$88
Roundtrip
found 13 hours ago
Select Frontier Airlines flight, departing Tue, Aug 11 from Denver to St. Louis, returning Wed, Aug 19, priced at $88 found 13 hours ago
Frontier Airlines
Tue, Aug 11 - Wed, Aug 19
DEN
Denver
STL
St. Louis
$98 Roundtrip, found 13 hours ago
$98
Roundtrip
found 13 hours ago
Select Frontier Airlines flight, departing Tue, Aug 11 from Denver to St. Louis, returning Wed, Aug 19, priced at $98 found 13 hours ago
Frontier Airlines
Tue, Jun 30 - Wed, Jul 1
DFW
Dallas
STL
St. Louis
$108 Roundtrip, just found
$108
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Jun 30 from Dallas to St. Louis, returning Wed, Jul 1, priced at $108 just found
Frontier Airlines
Tue, Jun 9 - Thu, Jun 11
DFW
Dallas
STL
St. Louis
$113 Roundtrip, found 8 hours ago
$113
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Tue, Jun 9 from Dallas to St. Louis, returning Thu, Jun 11, priced at $113 found 8 hours ago
Frontier Airlines
Thu, May 28 - Sun, May 31
DFW
Dallas
STL
St. Louis
$118 Roundtrip, just found
$118
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, May 28 from Dallas to St. Louis, returning Sun, May 31, priced at $118 just found
United
Wed, Jul 15 - Tue, Jul 21
DEN
Denver
STL
St. Louis
$217 Roundtrip, just found
$217
Roundtrip
just found
Select United flight, departing Wed, Jul 15 from Denver to St. Louis, returning Tue, Jul 21, priced at $217 just found
Southwest Airlines
Tue, Aug 4 - Wed, Aug 5
DEN
Denver
STL
St. Louis
$217 Roundtrip, found 1 hour ago
$217
Roundtrip
found 1 hour ago
Select Southwest Airlines flight, departing Tue, Aug 4 from Denver to St. Louis, returning Wed, Aug 5, priced at $217 found 1 hour ago
American Airlines
Wed, Jul 15 - Tue, Jul 21
DEN
Denver
STL
St. Louis
$237 Roundtrip, just found
$237
Roundtrip
just found
Select American Airlines flight, departing Wed, Jul 15 from Denver to St. Louis, returning Tue, Jul 21, priced at $237 just found
Delta
Wed, Jul 15 - Tue, Jul 21
DEN
Denver
STL
St. Louis
$237 Roundtrip, just found
$237
Roundtrip
just found
Select Delta flight, departing Wed, Jul 15 from Denver to St. Louis, returning Tue, Jul 21, priced at $237 just found

Trending flights to Clinton 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, Jul 16 - Mon, Jul 20
MCO
Orlando
STL
St. Louis
$128 Roundtrip, just found
$128
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Jul 16 from Orlando to St. Louis, returning Mon, Jul 20, priced at $128 just found

Frequently asked questions

How do I find cheap flights to Clinton County that have flexible change policies?
When it comes to traveling these days, flexibility is essential. That's why we've added a "No change fee" filter to help you locate flexible, low-cost tickets to Clinton County. It's at the top left of your screen directly below the "Flexible change policies" subheading.
Which airlines fly to Clinton County?
Let Allegiant Air get you there. This well-known carrier runs 125 flights a month to MidAmerica-St. Louis Airport (BLV), a Clinton County gateway.
How can I find cheap tickets to Clinton County?
In the last seven days, $84 was the best price for a flight to Clinton County. For an even cheaper fare, book well in advance and be flexible with your dates. Search for your journey to Clinton County, then compare prices for similar time frames by clicking on our "flexible dates" link.
How much is a flight to Clinton County?
In the last seven days, round-trip airfares to Clinton County sold from just $84 and reached a maximum of $237. For one-way trips taking off from Denver (DEN), the lowest amount paid during this time was $40.
What are the most popular airports to fly into in Clinton County?
Start planning your Clinton County journey by securing a seat on one of the 125 flights each month to MidAmerica-St. Louis Airport (BLV). This is the region's main entry point.
When is the cheapest time to fly to Clinton County?
Depart for Clinton County early in the week and you'll usually be rewarded with cheaper fares. Tuesday is generally the cheapest day to hop on a plane, followed closely by Monday. If you'd like to avoid the most expensive flights, keep clear of Saturdays.
How much is a plane ticket to Clinton County?
In the last seven days, fares to Clinton County ranged between $84 and $237. Prices tend to rise over time, so pick up a great deal today.
What months are the cheapest to book a flight to Clinton County?
February is the ideal month to get your hands on a bargain fare to Clinton County. Keep in mind that the most expensive time to book in the USA isn't during the height of summer, but the month of December.
How long is a flight to Clinton County?
Your flight to Clinton County could be short or long depending on where you depart from. Before you load your tablet with movies and TV shows, check out the average flight times for these popular domestic routes:

  • Fort Walton Beach, FL (VPS-Northwest Florida Regional) to MidAmerica-St. Louis Airport (BLV) - 1 hour and 44 minutes
  • Punta Gorda Airport (PGD) to MidAmerica-St. Louis Airport (BLV) - 2 hours and 24 minutes
  • St. Petersburg, FL (PIE-St. Petersburg-Clearwater Intl.) to MidAmerica-St. Louis Airport (BLV) - 2 hours and 13 minutes

What is the best time to go to Clinton County?
If you want to discover Clinton County's leading city when it's buzzing, go to New Baden sometime during March, July and September. Similar to most locations in the Northern Hemisphere, summertime here starts June 20, with temperatures ranging between 65ºF and 85ºF.

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Travel information

*Flight schedules are subject to change.

*Available to One Key members.

 

*Flight schedules are subject to change.

*Available to One Key members.