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$2,245 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, 13 Feb - Sat, 14 Feb
SEA
Seattle
STL
St. Louis
HK$2,245 Return, found 18 hours ago
HK$2,245
Return
found 18 hours ago
Select Delta flight, departing Fri, 13 Feb from Seattle to St. Louis, returning Sat, 14 Feb, priced at HK$2,245 found 18 hours ago
Delta
Sat, 23 May - Sat, 30 May
SEA
Seattle
STL
St. Louis
HK$2,267 Return, found 16 hours ago
HK$2,267
Return
found 16 hours ago
Select Delta flight, departing Sat, 23 May from Seattle to St. Louis, returning Sat, 30 May, priced at HK$2,267 found 16 hours ago
United
Fri, 13 Feb - Sat, 14 Feb
SEA
Seattle
STL
St. Louis
HK$2,417 Return, found 18 hours ago
HK$2,417
Return
found 18 hours ago
Select United flight, departing Fri, 13 Feb from Seattle to St. Louis, returning Sat, 14 Feb, priced at HK$2,417 found 18 hours ago
Delta
Sat, 17 Jan - Sun, 18 Jan
LAX
Los Angeles
STL
St. Louis
HK$2,460 Return, found 5 days ago
HK$2,460
Return
found 5 days ago
Select Delta flight, departing Sat, 17 Jan from Los Angeles to St. Louis, returning Sun, 18 Jan, priced at HK$2,460 found 5 days ago
Delta
Fri, 13 Feb - Sat, 14 Feb
SEA
Seattle
STL
St. Louis
HK$2,557 Return, found 18 hours ago
HK$2,557
Return
found 18 hours ago
Select Delta flight, departing Fri, 13 Feb from Seattle to St. Louis, returning Sat, 14 Feb, priced at HK$2,557 found 18 hours ago
Delta
Sat, 23 May - Sat, 30 May
SEA
Seattle
STL
St. Louis
HK$2,611 Return, found 16 hours ago
HK$2,611
Return
found 16 hours ago
Select Delta flight, departing Sat, 23 May from Seattle to St. Louis, returning Sat, 30 May, priced at HK$2,611 found 16 hours ago
United
Fri, 13 Feb - Sat, 14 Feb
SEA
Seattle
STL
St. Louis
HK$2,642 Return, found 18 hours ago
HK$2,642
Return
found 18 hours ago
Select United flight, departing Fri, 13 Feb from Seattle to St. Louis, returning Sat, 14 Feb, priced at HK$2,642 found 18 hours ago
Alaska Airlines
Fri, 13 Feb - Sat, 14 Feb
SEA
Seattle
STL
St. Louis
HK$2,758 Return, found 18 hours ago
HK$2,758
Return
found 18 hours ago
Select Alaska Airlines flight, departing Fri, 13 Feb from Seattle to St. Louis, returning Sat, 14 Feb, priced at HK$2,758 found 18 hours ago
American Airlines
Fri, 13 Feb - Sat, 14 Feb
SEA
Seattle
STL
St. Louis
HK$2,837 Return, found 18 hours ago
HK$2,837
Return
found 18 hours ago
Select American Airlines flight, departing Fri, 13 Feb from Seattle to St. Louis, returning Sat, 14 Feb, priced at HK$2,837 found 18 hours ago
China Airlines
Mon, 26 Jan - Sat, 31 Jan
HKG
Hong Kong SAR
STL
St. Louis
HK$7,119 Return, found 14 hours ago
HK$7,119
Return
found 14 hours ago
Select China Airlines flight, departing Mon, 26 Jan from Hong Kong SAR to St. Louis, returning Sat, 31 Jan, priced at HK$7,119 found 14 hours ago

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
Mon, 26 Jan - Sat, 31 Jan
HKG
Hong Kong SAR
STL
St. Louis
HK$7,119 Return, found 14 hours ago
HK$7,119
Return
found 14 hours ago
Select China Airlines flight, departing Mon, 26 Jan from Hong Kong SAR to St. Louis, returning Sat, 31 Jan, priced at HK$7,119 found 14 hours ago

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$2,245 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$2,245 to HK$7,119 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$2,245 and HK$7,119. 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.

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About Franklin County

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About Franklin County

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