A blue kayak on calm river water with trees and rocky cliffs in the background.

Cheap Flights to Jefferson County | Popular Routes to Jefferson County from HK$1,566

View HK$1,566 flight on Tue, 11 Aug 2026Opens in a new window

Popular airlines to Jefferson County

  • American Airlines

  • Delta

  • United

  • Southwest Airlines

  • Alaska Airlines

  • Frontier Airlines

  • Air Canada

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 35% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Jefferson County

Prices were available within the past 7 days and start at HK$1,566 for one-way flights and HK$3,389 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 11 Aug - Sun, 16 Aug
LAX
Los Angeles
STL
St. Louis
HK$3,389 Return, found 15 hours ago
HK$3,389
Return
found 15 hours ago
Select Delta flight, departing Tue, 11 Aug from Los Angeles to St. Louis, returning Sun, 16 Aug, priced at HK$3,389 found 15 hours ago
Delta
Fri, 14 Aug - Tue, 18 Aug
LAX
Los Angeles
STL
St. Louis
HK$3,508 Return, found 1 day ago
HK$3,508
Return
found 1 day ago
Select Delta flight, departing Fri, 14 Aug from Los Angeles to St. Louis, returning Tue, 18 Aug, priced at HK$3,508 found 1 day ago
American Airlines
Sat, 8 Aug - Sat, 15 Aug
LAX
Los Angeles
STL
St. Louis
HK$3,529 Return, found 4 days ago
HK$3,529
Return
found 4 days ago
Select American Airlines flight, departing Sat, 8 Aug from Los Angeles to St. Louis, returning Sat, 15 Aug, priced at HK$3,529 found 4 days ago
Delta
Fri, 14 Aug - Mon, 17 Aug
LAX
Los Angeles
STL
St. Louis
HK$3,625 Return, found 1 day ago
HK$3,625
Return
found 1 day ago
Select Delta flight, departing Fri, 14 Aug from Los Angeles to St. Louis, returning Mon, 17 Aug, priced at HK$3,625 found 1 day ago
Delta
Fri, 14 Aug - Tue, 18 Aug
LAX
Los Angeles
STL
St. Louis
HK$3,626 Return, found 1 day ago
HK$3,626
Return
found 1 day ago
Select Delta flight, departing Fri, 14 Aug from Los Angeles to St. Louis, returning Tue, 18 Aug, priced at HK$3,626 found 1 day ago
Delta
Tue, 11 Aug - Sun, 16 Aug
LAX
Los Angeles
STL
St. Louis
HK$3,636 Return, found 15 hours ago
HK$3,636
Return
found 15 hours ago
Select Delta flight, departing Tue, 11 Aug from Los Angeles to St. Louis, returning Sun, 16 Aug, priced at HK$3,636 found 15 hours ago
Delta
Tue, 11 Aug - Sun, 16 Aug
LAX
Los Angeles
STL
St. Louis
HK$3,765 Return, found 15 hours ago
HK$3,765
Return
found 15 hours ago
Select Delta flight, departing Tue, 11 Aug from Los Angeles to St. Louis, returning Sun, 16 Aug, priced at HK$3,765 found 15 hours ago
United
Tue, 11 Aug - Sun, 16 Aug
LAX
Los Angeles
STL
St. Louis
HK$3,858 Return, found 15 hours ago
HK$3,858
Return
found 15 hours ago
Select United flight, departing Tue, 11 Aug from Los Angeles to St. Louis, returning Sun, 16 Aug, priced at HK$3,858 found 15 hours ago
Lufthansa
Mon, 13 Jul - Mon, 10 Aug
HKG
Hong Kong SAR
STL
St. Louis
HK$11,229 Return, found 1 day ago
HK$11,229
Return
found 1 day ago
Select Lufthansa flight, departing Mon, 13 Jul from Hong Kong SAR to St. Louis, returning Mon, 10 Aug, priced at HK$11,229 found 1 day ago
Cathay Pacific
Tue, 7 Jul - Sat, 25 Jul
HKG
Hong Kong SAR
STL
St. Louis
HK$12,763 Return, found 3 hours ago
HK$12,763
Return
found 3 hours ago
Select Cathay Pacific flight, departing Tue, 7 Jul from Hong Kong SAR to St. Louis, returning Sat, 25 Jul, priced at HK$12,763 found 3 hours ago

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.

Delta
Sun, 4 Oct - Sun, 18 Oct
HKG
Hong Kong SAR
STL
St. Louis
HK$9,337 Return, found 1 day ago
HK$9,337
Return
found 1 day ago
Select Delta flight, departing Sun, 4 Oct from Hong Kong SAR to St. Louis, returning Sun, 18 Oct, priced at HK$9,337 found 1 day ago

Book with confidence

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.
About Jefferson County
*Available to Expedia members.