Cheap Flights to Franklin County | Popular Routes to Franklin County from HK$693

View HK$693 flight on Tue, 17 Feb 2026Opens in a new window

Popular airlines to Franklin 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

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Cheap round-trip flights to Franklin County

Prices were available within the past 7 days and start at HK$693 for one-way flights and HK$2,149 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 7 Feb - Sat, 7 Feb
DCA
Washington
STL
St. Louis
HK$2,149 Return, found 1 day ago
HK$2,149
Return
found 1 day ago
Select Delta flight, departing Sat, 7 Feb from Washington to St. Louis, returning Sat, 7 Feb, priced at HK$2,149 found 1 day ago
Delta
Sat, 23 May - Sat, 30 May
SEA
Seattle
STL
St. Louis
HK$2,267 Return, found 4 days ago
HK$2,267
Return
found 4 days ago
Select Delta flight, departing Sat, 23 May from Seattle to St. Louis, returning Sat, 30 May, priced at HK$2,267 found 4 days ago
United
Sat, 7 Feb - Sat, 7 Feb
DCA
Washington
STL
St. Louis
HK$2,536 Return, found 1 day ago
HK$2,536
Return
found 1 day ago
Select United flight, departing Sat, 7 Feb from Washington to St. Louis, returning Sat, 7 Feb, priced at HK$2,536 found 1 day ago
American Airlines
Fri, 13 Feb - Sat, 14 Feb
SEA
Seattle
STL
St. Louis
HK$2,598 Return, found 14 hours ago
HK$2,598
Return
found 14 hours ago
Select American Airlines flight, departing Fri, 13 Feb from Seattle to St. Louis, returning Sat, 14 Feb, priced at HK$2,598 found 14 hours ago
American Airlines
Fri, 13 Feb - Sat, 14 Feb
SEA
Seattle
STL
St. Louis
HK$2,629 Return, found 14 hours ago
HK$2,629
Return
found 14 hours ago
Select American Airlines flight, departing Fri, 13 Feb from Seattle to St. Louis, returning Sat, 14 Feb, priced at HK$2,629 found 14 hours ago
Delta
Wed, 18 Feb - Wed, 4 Mar
PHL
Philadelphia
STL
St. Louis
HK$2,944 Return, found 1 day ago
HK$2,944
Return
found 1 day ago
Select Delta flight, departing Wed, 18 Feb from Philadelphia to St. Louis, returning Wed, 4 Mar, priced at HK$2,944 found 1 day ago
United
Thu, 29 Jan - Mon, 2 Feb
YVR
Vancouver
STL
St. Louis
HK$2,987 Return, found 1 day ago
HK$2,987
Return
found 1 day ago
Select United flight, departing Thu, 29 Jan from Vancouver to St. Louis, returning Mon, 2 Feb, priced at HK$2,987 found 1 day ago
Air Canada
Thu, 29 Jan - Mon, 2 Feb
YVR
Vancouver
STL
St. Louis
HK$3,260 Return, found 1 day ago
HK$3,260
Return
found 1 day ago
Select Air Canada flight, departing Thu, 29 Jan from Vancouver to St. Louis, returning Mon, 2 Feb, priced at HK$3,260 found 1 day ago
Lufthansa
Fri, 30 Jan - Thu, 5 Feb
VIE
Vienna
STL
St. Louis
HK$6,750 Return, found 19 hours ago
HK$6,750
Return
found 19 hours ago
Select Lufthansa flight, departing Fri, 30 Jan from Vienna to St. Louis, returning Thu, 5 Feb, priced at HK$6,750 found 19 hours ago
Lufthansa
Fri, 30 Jan - Thu, 5 Feb
VIE
Vienna
STL
St. Louis
HK$6,945 Return, found 19 hours ago
HK$6,945
Return
found 19 hours ago
Select Lufthansa flight, departing Fri, 30 Jan from Vienna to St. Louis, returning Thu, 5 Feb, priced at HK$6,945 found 19 hours ago

About Franklin County

Expedia offers flights to Franklin County to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Franklin County or destinations around the world and discover how easy it is to make your flight reservations on Expedia.

Frequently asked questions

How do I find cheap flights to Franklin County that have flexible change policies?
At Expedia, we've been channeling our inner yoga master to provide you with the most flexible airfares in town. Simply check the "No change fee" box right underneath the "Flexible change policies" heading to find your perfect flight to Franklin County.
Which airlines fly to Franklin County?
With a great range of airlines operating flights into or near Franklin County, the choice is yours:

  • Southwest Airlines - 2,214 flights to or near Franklin County each month, including 2,214 flights to Lambert-St. Louis Intl. Airport (STL) per month.
  • American Airlines - 789 flights to or near Franklin County each month, including 789 flights to Lambert-St. Louis Intl. Airport (STL) per month.
  • Delta Air Lines - 650 flights to or near Franklin County each month, including 650 flights to Lambert-St. Louis Intl. Airport (STL) per month.

How can I find cheap tickets to Franklin County?
You'll always walk away with an awesome deal with Expedia, but our "flexible dates" feature makes it that much easier. Enter your preferred travel date, then check the flexible dates box above to reveal the cheapest prices for nearby days. HK$2,149 was the cheapest price for a flight to Franklin County in the last seven days.
How much is a flight to Franklin County?
If you were flying one way from Seattle (SEA), you could've nabbed a cheap ticket for just HK$693 in the last seven days. Round-trip journeys to Franklin County ranged from only HK$2,149 to HK$7,382 during this same period.
What are the most popular airports to fly into in Franklin County?
Get ready to pack your bags and jet into Lambert-St. Louis Intl. Airport (STL), Franklin County's main flight hub. Secure a seat on one of the 4,902 flights that land here every month.
When is the cheapest time to fly to Franklin County?
Consider leaving earlier in the week to score the best airfare to Franklin County. Tuesday is routinely the most affordable day to fly, with Monday a close second. Saturday often has the highest prices. This is because many travelers choose to start their trip on a weekend.
How much is a plane ticket to Franklin County?
In the last seven days, airfares to Franklin County ranged between HK$2,149 and HK$7,382. Prices tend to rise over time, so find a top deal today.
What is the best time to go to Franklin County?
Summer begins June 20 in the Northern Hemisphere, and these warmer months are a fantastic time to visit the top Franklin County city of Washington. Average temperatures fluctuate between 18ºC and 29ºC throughout this season. The biggest crowds flock here in April, June and September.
What months are the cheapest to book a flight to Franklin County?
The best month to book low-cost airfares to Franklin County is February. Bear in mind that in the U.S, an expensive time to secure a ticket is during the busy month of December.

Trending flights to Franklin 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.

China Airlines
Tue, 10 Nov - Sun, 15 Nov
HKG
Hong Kong SAR
STL
St. Louis
HK$7,382 Return, found 11 hours ago
HK$7,382
Return
found 11 hours ago
Select China Airlines flight, departing Tue, 10 Nov from Hong Kong SAR to St. Louis, returning Sun, 15 Nov, priced at HK$7,382 found 11 hours ago
*Available to Expedia members.