Cheap Flights to Franklin County from ₩127,700

View ₩127,700 flight on Fri, Feb 20, 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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How much is the cheapest flight to Franklin County?

Prices were available within the past 7 days and start at ₩127,700 for one-way flights and ₩255,300 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, Feb 20 - Fri, Feb 27
SEA
Seattle
STL
St. Louis
₩255,300 Roundtrip, found 14 hours ago
₩255,300
Roundtrip
found 14 hours ago
Select Delta flight, departing Fri, Feb 20 from Seattle to St. Louis, returning Fri, Feb 27, priced at ₩255,300 found 14 hours ago
Hawaiian Airlines
Fri, Feb 20 - Fri, Feb 27
SEA
Seattle
STL
St. Louis
₩284,300 Roundtrip, found 14 hours ago
₩284,300
Roundtrip
found 14 hours ago
Select Hawaiian Airlines flight, departing Fri, Feb 20 from Seattle to St. Louis, returning Fri, Feb 27, priced at ₩284,300 found 14 hours ago
Delta
Sat, Feb 21 - Sat, Feb 28
SEA
Seattle
STL
St. Louis
₩285,600 Roundtrip, found 1 day ago
₩285,600
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Feb 21 from Seattle to St. Louis, returning Sat, Feb 28, priced at ₩285,600 found 1 day ago
Delta
Wed, May 27 - Mon, Jun 1
SEA
Seattle
STL
St. Louis
₩299,400 Roundtrip, found 6 days ago
₩299,400
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, May 27 from Seattle to St. Louis, returning Mon, Jun 1, priced at ₩299,400 found 6 days ago
Delta
Sat, Feb 21 - Sat, Feb 28
SEA
Seattle
STL
St. Louis
₩307,200 Roundtrip, found 1 day ago
₩307,200
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Feb 21 from Seattle to St. Louis, returning Sat, Feb 28, priced at ₩307,200 found 1 day ago
Hawaiian Airlines
Fri, Feb 20 - Fri, Feb 27
SEA
Seattle
STL
St. Louis
₩313,200 Roundtrip, found 14 hours ago
₩313,200
Roundtrip
found 14 hours ago
Select Hawaiian Airlines flight, departing Fri, Feb 20 from Seattle to St. Louis, returning Fri, Feb 27, priced at ₩313,200 found 14 hours ago
Delta
Sat, Feb 21 - Sat, Feb 28
SEA
Seattle
STL
St. Louis
₩314,500 Roundtrip, found 1 day ago
₩314,500
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Feb 21 from Seattle to St. Louis, returning Sat, Feb 28, priced at ₩314,500 found 1 day ago
American Airlines
Fri, Feb 20 - Fri, Feb 27
SEA
Seattle
STL
St. Louis
₩320,200 Roundtrip, found 14 hours ago
₩320,200
Roundtrip
found 14 hours ago
Select American Airlines flight, departing Fri, Feb 20 from Seattle to St. Louis, returning Fri, Feb 27, priced at ₩320,200 found 14 hours ago
United
Fri, Feb 20 - Fri, Feb 27
SEA
Seattle
STL
St. Louis
₩445,900 Roundtrip, found 14 hours ago
₩445,900
Roundtrip
found 14 hours ago
Select United flight, departing Fri, Feb 20 from Seattle to St. Louis, returning Fri, Feb 27, priced at ₩445,900 found 14 hours ago
Aer Lingus
Fri, Jan 16 - Mon, Jan 19
IOM
Isle of Man
STL
St. Louis
₩1,455,600 Roundtrip, found 21 hours ago
₩1,455,600
Roundtrip
found 21 hours ago
Select Aer Lingus flight, departing Fri, Jan 16 from Isle of Man to St. Louis, returning Mon, Jan 19, priced at ₩1,455,600 found 21 hours ago

Trending flights to Franklin County

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Mar 30 - Wed, Apr 8
ICN
Seoul
STL
St. Louis
₩908,300 Roundtrip, found 6 days ago
₩908,300
Roundtrip
found 6 days ago
Select American Airlines flight, departing Mon, Mar 30 from Seoul to St. Louis, returning Wed, Apr 8, priced at ₩908,300 found 6 days 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. ₩255,300 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 ₩127,700 in the last seven days. Round-trip journeys to Franklin County ranged from only ₩255,300 to ₩1,455,600 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 ₩255,300 and ₩1,455,600. 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 65ºF and 85ºF 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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