Photo by Mike Kostial

Popular airlines to Jefferson County
American Airlines
Delta
United
Southwest Airlines
Frontier Airlines
Alaska Airlines
Air Canada
- Plan, book, fly with confidence
trending down icon Be in the knowGet alerts if flight prices drop or rise*bex rewards loyalty icon Book smarterSave up to 15% on select hotels after you book a flight*payments icon
Cheap round-trip flights to Jefferson County
Prices were available within the past 7 days and start at €43 for one-way flights and €84 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, 20 Sep - Mon, 22 Sep
ORD
Chicago
STL
St. Louis
€84 Return, found 13 hours ago
€84
Return
found 13 hours ago

Sat, 20 Sep - Mon, 22 Sep
ORD
Chicago
STL
St. Louis
€111 Return, found 13 hours ago
€111
Return
found 13 hours ago

Sat, 20 Sep - Mon, 22 Sep
ORD
Chicago
STL
St. Louis
€119 Return, found 13 hours ago
€119
Return
found 13 hours ago

Sat, 20 Sep - Mon, 22 Sep
ORD
Chicago
STL
St. Louis
€131 Return, found 13 hours ago
€131
Return
found 13 hours ago

Sat, 20 Sep - Mon, 22 Sep
ORD
Chicago
STL
St. Louis
€135 Return, found 13 hours ago
€135
Return
found 13 hours ago

Sat, 20 Sep - Mon, 22 Sep
ORD
Chicago
STL
St. Louis
€136 Return, found 13 hours ago
€136
Return
found 13 hours ago

Sat, 20 Sep - Mon, 22 Sep
ORD
Chicago
STL
St. Louis
€145 Return, found 13 hours ago
€145
Return
found 13 hours ago

Sat, 20 Sep - Mon, 22 Sep
ORD
Chicago
STL
St. Louis
€146 Return, found 13 hours ago
€146
Return
found 13 hours ago

Fri, 14 Nov - Sat, 22 Nov
ORD
Chicago
STL
St. Louis
€154 Return, found 13 hours ago
€154
Return
found 13 hours ago

Fri, 21 Nov - Mon, 8 Dec
DUB
Dublin
STL
St. Louis
€773 Return, found 3 days ago
€773
Return
found 3 days ago
About Jefferson County
Expedia offers flights to Jefferson County to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Jefferson County or destinations around the world and discover how easy it is to make your flight reservations on Expedia.
Top Flight Destinations In Jefferson County
Top Flight Destinations In World
- Flights to United Kingdom
- Flights to United States of America
- Flights to Canada
- Flights to Philippines
- Flights to France
- Flights to Greece
- Flights to Australia
- Flights to China
- Flights to Switzerland
- Flights to Sweden
- Flights to Japan
- Flights to Spain
- Flights to Russia
- Flights to Italy
- Flights to Argentina
- Flights to Norway
- Flights to Brazil
- Flights to India
- Flights to Germany
- Flights to Türkiye
Top Jefferson County Hotels
- Hyatt Regency St. Louis at The Arch
- Drury Plaza Hotel St. Louis at the Arch
- Clayton Plaza Hotel & Extended Stay
- Pear Tree Inn St. Louis Airport
- Hollywood Casino & Hotel St. Louis
- Magnolia Hotel St. Louis, a Tribute Portfolio Hotel
- Renaissance St. Louis Airport Hotel
- Pear Tree Inn St. Louis Near Union Station
- Moonrise Hotel
- River City Casino & Hotel
- 21C Museum Hotel St Louis
- Forest Park Hotel by MDR
- AC Hotel St. Louis Clayton
- Drury Inn & Suites St. Louis Union Station
- Larkspur Landing Extended Stay Suites St. Louis Riverport - Airport West
- Live by Loews - St.Louis
- Heritage Inn & Suites St. Louis/Fenton, Trademark by Wyndham
Trending flights to Jefferson County
These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, 27 Oct - Fri, 7 Nov
DUB
Dublin
STL
St. Louis
€761 Return, found 1 hour ago
€761
Return
found 1 hour ago
*Available to Expedia members.