Cheap Flights to St. Louis County from $64

Popular airlines to St. Louis County

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

  • Southwest Airlines

    Southwest Airlines

  • Frontier Airlines

    Frontier Airlines

  • Alaska Airlines

    Alaska Airlines

  • Air Canada

    Air Canada

  • 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 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

How much is the cheapest flight to St. Louis County?

Prices were available within the past 7 days and start at $64 for one-way flights and $87 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Sep 11 - Thu, Sep 11
DFW
Dallas
STL
St. Louis
$87 Roundtrip, found 4 days ago
$87
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Thu, Sep 11 from Dallas to St. Louis, returning Thu, Sep 11, priced at $87 found 4 days ago
Frontier Airlines
Thu, Oct 23 - Sun, Oct 26
DFW
Dallas
STL
St. Louis
$119 Roundtrip, found 1 hour ago
$119
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, Oct 23 from Dallas to St. Louis, returning Sun, Oct 26, priced at $119 found 1 hour ago
Frontier Airlines
Sat, Oct 11 - Sat, Oct 11
DEN
Denver
STL
St. Louis
$122 Roundtrip, found 2 days ago
$122
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sat, Oct 11 from Denver to St. Louis, returning Sat, Oct 11, priced at $122 found 2 days ago
American Airlines
Sat, Sep 13 - Sat, Sep 20
DFW
Dallas
STL
St. Louis
$127 Roundtrip, found 4 days ago
$127
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, Sep 13 from Dallas to St. Louis, returning Sat, Sep 20, priced at $127 found 4 days ago
Southwest Airlines
Wed, Oct 1 - Thu, Oct 2
DAL
Dallas
STL
St. Louis
$133 Roundtrip, found 4 days ago
$133
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Wed, Oct 1 from Dallas to St. Louis, returning Thu, Oct 2, priced at $133 found 4 days ago
United
Sat, Nov 8 - Tue, Nov 18
DEN
Denver
STL
St. Louis
$139 Roundtrip, found 3 hours ago
$139
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Nov 8 from Denver to St. Louis, returning Tue, Nov 18, priced at $139 found 3 hours ago
Frontier Airlines
Thu, Oct 23 - Sat, Oct 25
MCO
Orlando
STL
St. Louis
$144 Roundtrip, found 20 hours ago
$144
Roundtrip
found 20 hours ago
Select Frontier Airlines flight, departing Thu, Oct 23 from Orlando to St. Louis, returning Sat, Oct 25, priced at $144 found 20 hours ago
Spirit Airlines
Thu, Aug 28 - Sun, Aug 31
MCO
Orlando
STL
St. Louis
$162 Roundtrip, found 7 hours ago
$162
Roundtrip
found 7 hours ago
Select Spirit Airlines flight, departing Thu, Aug 28 from Orlando to St. Louis, returning Sun, Aug 31, priced at $162 found 7 hours ago
United
Tue, Dec 30 - Tue, Jan 6
EWR
New York
STL
St. Louis
$163 Roundtrip, found 4 days ago
$163
Roundtrip
found 4 days ago
Select United flight, departing Tue, Dec 30 from New York to St. Louis, returning Tue, Jan 6, priced at $163 found 4 days ago
United
Tue, Sep 9 - Tue, Sep 16
SEA
Seattle
STL
St. Louis
$168 Roundtrip, found 4 hours ago
$168
Roundtrip
found 4 hours ago
Select United flight, departing Tue, Sep 9 from Seattle to St. Louis, returning Tue, Sep 16, priced at $168 found 4 hours ago

Airports in St. Louis County

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

Select flight to Lambert-St. Louis Intl. STL. Cheapest option available. Flights from $234
STL
Lambert-St. Louis Intl.
Cheapest
Flights from $234

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.

St. Louis County Flights Information

Airlines serving
Frontier Airlines, Southwest Airlines, American Airlines, United, Spirit Airlines
Roundtrip price
from $87

Trending flights to St. Louis 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, Sep 11 - Thu, Sep 11
DFW
Dallas
STL
St. Louis
$87 Roundtrip, found 4 days ago
$87
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Thu, Sep 11 from Dallas to St. Louis, returning Thu, Sep 11, priced at $87 found 4 days ago
*Available to One Key members.