$28 Cheap flight deals from Atlanta (ATL) to Southwest Illinois (STL)

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This Weekend's Flight Deals from Atlanta to Southwest Illinois

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Jul 4 - Mon, Jul 6
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$419 Roundtrip, found 21 hours ago
$419
Roundtrip
found 21 hours ago
Select Frontier Airlines flight, departing Sat, Jul 4 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Mon, Jul 6, priced at $419 found 21 hours ago
Fri, Jul 3 - Mon, Jul 6
ATL
Hartsfield-Jackson Atlanta Intl.
MWA
Veterans Airport of Southern Illinois
$1,773 Roundtrip, found 6 days ago
$1,773
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Fri, Jul 3 from Hartsfield-Jackson Atlanta Intl. to Veterans Airport of Southern Illinois, returning Mon, Jul 6, priced at $1,773 found 6 days ago

Airfares from $28 One Way, $56 Round Trip from Atlanta to Southwest Illinois

Prices starting at $56 for return flights and $28 for one-way flights to Southwest Illinois were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Oct 9 - Sun, Oct 11
ATL
Atlanta
STL
St. Louis
$56 Roundtrip, found 11 hours ago
$56
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Fri, Oct 9 from Atlanta to St. Louis, returning Sun, Oct 11, priced at $56 found 11 hours ago
Fri, Jul 31 - Fri, Aug 7
ATL
Atlanta
STL
St. Louis
$58 Roundtrip, just found
$58
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Jul 31 from Atlanta to St. Louis, returning Fri, Aug 7, priced at $58 just found
Fri, Oct 9 - Mon, Oct 12
ATL
Atlanta
STL
St. Louis
$66 Roundtrip, found 11 hours ago
$66
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Fri, Oct 9 from Atlanta to St. Louis, returning Mon, Oct 12, priced at $66 found 11 hours ago
Wed, Aug 26 - Sat, Aug 29
ATL
Atlanta
STL
St. Louis
$117 Roundtrip, found 1 day ago
$117
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Aug 26 from Atlanta to St. Louis, returning Sat, Aug 29, priced at $117 found 1 day ago
Wed, Aug 26 - Sat, Aug 29
ATL
Atlanta
STL
St. Louis
$137 Roundtrip, found 1 day ago
$137
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Wed, Aug 26 from Atlanta to St. Louis, returning Sat, Aug 29, priced at $137 found 1 day ago

Southwest Illinois economy flight packages

Price found within the past 48 hours. Click for updated prices.
WoodSpring Suites St Peters-OFallon
2.5-star property

WoodSpring Suites St Peters-OFallon

8.6/10 Excellent! (170 reviews)

Aug 1 - Aug 8

7 night stay

Atlanta (ATL) to St. Louis (STL)

Delta • Coach

St. Louis (STL) to Atlanta (ATL)

Frontier Airlines • Coach
Price was $362, price is now $350 per person
$350
per person
found 1 day ago
No frills hotel is very good. Worth staying for the cost. We were there 6 nights and very satisfied. Room was clean, the staff friendly bed comfortable and it was quiet.

Reviewed on Jun 29, 2026

The Wildwood Hotel
3.5-star property

The Wildwood Hotel

9.2/10 Wonderful! (1,663 reviews)

Aug 1 - Aug 8

7 night stay

Atlanta (ATL) to St. Louis (STL)

Delta • Coach

St. Louis (STL) to Atlanta (ATL)

Frontier Airlines • Coach
Price was $1,109, price is now $547 per person
$547
per person
found 1 day ago
The pool steps were extremely slippery and not level. My son and I slipped going into the pool. Plus the railing into the pool was loose. The free breakfast was pretty weak. The only warm items they had, you to heat up yourself. The property was clean and the room was nice. Great water pressure but the shower head was very low.

Reviewed on Jul 1, 2026

Heritage Inn & Suites St. Louis/Fenton, Trademark by Wyndham
3.0-star property

Heritage Inn & Suites St. Louis/Fenton, Trademark by Wyndham

7.8/10 Good! (1,377 reviews)

Aug 1 - Aug 8

7 night stay

Atlanta (ATL) to St. Louis (STL)

Delta • Coach

St. Louis (STL) to Atlanta (ATL)

Frontier Airlines • Coach
Price was $485, price is now $485 per person
$485
per person
found 1 day ago
The floors in our room weren't thoroughly cleaned prior to our arrival. When we entered upon arrival there was no soap in the bathroom. There were also contacts on the floor under the bathroom sink/counter. In the main portion of our room, I found a cookie on the floor by the bed and chips under the desk.

Reviewed on Jul 1, 2026

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More About Flying To Southwest Illinois from Atlanta

Route Information for Flights from Atlanta to Southwest Illinois

Origin Airport IATA Code
ATL
Destination Airport IATA Code
STL
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

Atlanta to Southwest Illinois

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Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.