Cheap Flights to Jefferson County from $20 (2026/2027)

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Festus

Flights
Festus

How Much Does it Cost To Fly To Jefferson County?

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Wed, Sep 23 - Wed, Sep 30
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$38 Roundtrip, found 3 hours ago
$38
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Wed, Sep 23 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Wed, Sep 30, priced at $38 found 3 hours ago
Wed, Oct 7 - Mon, Oct 12
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$44 Roundtrip, found 2 days ago
$44
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Wed, Oct 7 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Mon, Oct 12, priced at $44 found 2 days ago
Wed, Sep 16 - Fri, Sep 18
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$57 Roundtrip, found 1 day ago
$57
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Wed, Sep 16 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Fri, Sep 18, priced at $57 found 1 day ago
Sat, Oct 3 - Sat, Oct 10
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$80 Roundtrip, just found
$80
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Oct 3 from Denver Intl. to Lambert-St. Louis Intl., returning Sat, Oct 10, priced at $80 just found
Sat, Oct 3 - Sat, Oct 3
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$113 Roundtrip, found 5 days ago
$113
Roundtrip
found 5 days ago
Select Delta flight, departing Sat, Oct 3 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sat, Oct 3, priced at $113 found 5 days ago
Thu, Oct 1 - Mon, Oct 12
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$151 Roundtrip, found 3 days ago
$151
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Thu, Oct 1 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Mon, Oct 12, priced at $151 found 3 days ago
Thu, Sep 24 - Sun, Sep 27
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$157 Roundtrip, found 19 hours ago
$157
Roundtrip
found 19 hours ago
Select Southwest Airlines flight, departing Thu, Sep 24 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sun, Sep 27, priced at $157 found 19 hours ago
Wed, Nov 4 - Sat, Nov 7
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$170 Roundtrip, found 4 days ago
$170
Roundtrip
found 4 days ago
Select United flight, departing Wed, Nov 4 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sat, Nov 7, priced at $170 found 4 days ago
OriginDestinationTravel DatesFlights From*
ATLSt. LouisSeptember 23 to September 30$38
DENSt. LouisSeptember 26 to October 3$80
PIEMascoutahDecember 4 to December 7$105
SEASt. LouisOctober 24 to October 29$142
DFWSt. LouisNovember 12 to November 15$163
LGASt. LouisSeptember 9 to September 16$201
LGASt. LouisSeptember 9 to September 16$201
TPASt. LouisOctober 7 to October 12$208
PHLSt. LouisOctober 17 to October 19$232
LAXSt. LouisOctober 28 to November 2$278
FCOSt. LouisNovember 7 to November 11$952
*Prices include taxes and fees
OriginDestinationTravel DatesFlights From*
DFWSt. LouisAugust 29 to September 12$314
EWRSt. LouisAugust 30 to September 9$325
TTNSt. LouisAugust 29 to August 30$345
DENSt. LouisAugust 29 to September 3$365
TPASt. LouisAugust 30 to September 3$365
LGASt. LouisAugust 29 to September 5$411
LAXSt. LouisAugust 28 to August 30$470
SEASt. LouisAugust 30 to September 28$472
ATLSt. LouisAugust 28 to August 30$492
*Prices include taxes and fees

Best Jefferson County Flight and Hotel Packages

Price found within the past 48 hours. Click for updated prices.
The Wildwood Hotel
3.5-star property

The Wildwood Hotel

Nov 5 - Nov 9

4 night stay

Portland (PDX) to St. Louis (STL)

United • Non-stop roundtrip • Coach
Save 100% on your flight
Price was $1,250, price is now $740 per person
$740
per person
found 14 hours ago
Holiday Inn St Louis SW - Route 66 by IHG
3.0-star property

Holiday Inn St Louis SW - Route 66 by IHG

Sep 5 - Sep 9

4 night stay

Portland (PDX) to St. Louis (STL)

Alaska Airlines • Roundtrip • Coach
Price was $1,058, price is now $750 per person
$750
per person
found 1 day ago
The Cheshire
4.0-star property

The Cheshire

Nov 5 - Nov 9

4 night stay

Portland (PDX) to St. Louis (STL)

United • Non-stop roundtrip • Coach
Price was $1,033, price is now $764 per person
$764
per person
found 14 hours ago
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Travelers ❤️ These Jefferson County 🏨

Clayton Plaza Hotel & Extended Stay

Clayton Plaza Hotel & Extended Stay

3.5 out of 5
7750 Carondelet Avenue St. Louis MO
Book a stay at this business-friendly hotel in St. Louis. Enjoy free breakfast, free WiFi, and a 24-hour fitness center. Our guests praise the breakfast and the pool in our reviews. Popular attractions St. Louis Zoo and Forest Park are located nearby.
9/10 Wonderful! (3,336 reviews)
"I’d stay again"

Reviewed on Aug 26, 2026

Opens in a new windowClayton Plaza Hotel & Extended Stay
Hyatt Regency St. Louis at The Arch

Hyatt Regency St. Louis at The Arch

4 out of 5
315 Chestnut St St. Louis MO
Book a stay at this business-friendly hotel in St. Louis. Enjoy free WiFi, 3 restaurants, and 2 bars/lounges. Our guests praise the helpful staff and the clean rooms in our reviews. Popular attractions Gateway Arch and Busch Stadium are located nearby.
Opens in a new windowHyatt Regency St. Louis at The Arch
Hollywood Casino & Hotel St. Louis

Hollywood Casino & Hotel St. Louis

3.5 out of 5
777 Casino Center Drive Maryland Heights MO
Book a stay at this business-friendly hotel in Maryland Heights. Enjoy free parking, 7 restaurants, and a casino. Our guests praise the helpful staff and the clean rooms in our reviews. Popular attractions Hollywood Casino Amphitheatre and Ameristar Casino St. Charles are located nearby.
Opens in a new windowHollywood Casino & Hotel St. Louis
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Renaissance St. Louis Airport Hotel

Renaissance St. Louis Airport Hotel

4 out of 5
9801 Natural Bridge Road St. Louis MO
Book a stay at this business-friendly hotel in St. Louis. Enjoy an outdoor pool, breakfast (surcharge), and a free airport shuttle. Our guests praise the helpful staff and the clean rooms in our reviews. Popular attractions Westport Plaza and Blanche M. Touhill Performing Arts Center are located nearby.
Opens in a new windowRenaissance St. Louis Airport Hotel
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.