Cheap Flights to St. Charles County from ₩161,000

View ₩161,000 flight on Wed, Apr 15, 2026Opens in a new window

Popular airlines to St. Charles County

  • American Airlines

  • Delta

  • United

  • Southwest Airlines

  • Frontier Airlines

  • Alaska Airlines

  • Air Canada

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How much is the cheapest flight to St. Charles County?

Prices were available within the past 7 days and start at ₩161,000 for one-way flights and ₩450,300 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sun, Apr 19 - Sat, Apr 25
SEA
Seattle
STL
St. Louis
₩450,300 Roundtrip, found 23 hours ago
₩450,300
Roundtrip
found 23 hours ago
Select Delta flight, departing Sun, Apr 19 from Seattle to St. Louis, returning Sat, Apr 25, priced at ₩450,300 found 23 hours ago
Delta
Wed, Apr 15 - Mon, Apr 20
ONT
Ontario
STL
St. Louis
₩480,000 Roundtrip, found 6 days ago
₩480,000
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Apr 15 from Ontario to St. Louis, returning Mon, Apr 20, priced at ₩480,000 found 6 days ago
Delta
Sun, Apr 19 - Sat, Apr 25
SEA
Seattle
STL
St. Louis
₩509,100 Roundtrip, found 23 hours ago
₩509,100
Roundtrip
found 23 hours ago
Select Delta flight, departing Sun, Apr 19 from Seattle to St. Louis, returning Sat, Apr 25, priced at ₩509,100 found 23 hours ago
United
Sun, Apr 19 - Sat, Apr 25
SEA
Seattle
STL
St. Louis
₩525,600 Roundtrip, found 23 hours ago
₩525,600
Roundtrip
found 23 hours ago
Select United flight, departing Sun, Apr 19 from Seattle to St. Louis, returning Sat, Apr 25, priced at ₩525,600 found 23 hours ago
Delta
Sat, May 2 - Sat, May 9
ONT
Ontario
STL
St. Louis
₩537,600 Roundtrip, found 1 day ago
₩537,600
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, May 2 from Ontario to St. Louis, returning Sat, May 9, priced at ₩537,600 found 1 day ago
Delta
Sun, Apr 19 - Sat, Apr 25
SEA
Seattle
STL
St. Louis
₩543,800 Roundtrip, found 23 hours ago
₩543,800
Roundtrip
found 23 hours ago
Select Delta flight, departing Sun, Apr 19 from Seattle to St. Louis, returning Sat, Apr 25, priced at ₩543,800 found 23 hours ago
Delta
Mon, May 4 - Mon, May 11
ONT
Ontario
STL
St. Louis
₩552,800 Roundtrip, found 5 days ago
₩552,800
Roundtrip
found 5 days ago
Select Delta flight, departing Mon, May 4 from Ontario to St. Louis, returning Mon, May 11, priced at ₩552,800 found 5 days ago
American Airlines
Wed, Apr 15 - Mon, Apr 20
ONT
Ontario
STL
St. Louis
₩555,500 Roundtrip, found 6 days ago
₩555,500
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Apr 15 from Ontario to St. Louis, returning Mon, Apr 20, priced at ₩555,500 found 6 days ago
Hawaiian Airlines
Wed, Apr 15 - Mon, Apr 20
LAX
Los Angeles
STL
St. Louis
₩569,000 Roundtrip, found 6 days ago
₩569,000
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Wed, Apr 15 from Los Angeles to St. Louis, returning Mon, Apr 20, priced at ₩569,000 found 6 days ago
Air Canada
Fri, Nov 6 - Tue, Nov 10
ICN
Seoul
STL
St. Louis
₩1,452,900 Roundtrip, found 2 days ago
₩1,452,900
Roundtrip
found 2 days ago
Select Air Canada flight, departing Fri, Nov 6 from Seoul to St. Louis, returning Tue, Nov 10, priced at ₩1,452,900 found 2 days ago

Trending flights to St. Charles 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.

Air Canada
Fri, Nov 6 - Tue, Nov 10
ICN
Seoul
STL
St. Louis
₩1,452,900 Roundtrip, found 2 days ago
₩1,452,900
Roundtrip
found 2 days ago
Select Air Canada flight, departing Fri, Nov 6 from Seoul to St. Louis, returning Tue, Nov 10, priced at ₩1,452,900 found 2 days ago

Frequently asked questions

How do I find cheap flights to St. Charles County that have flexible change policies?
We understand that things can change from one minute to the next, so booking a flexible ticket with Expedia is always a clever idea. Simply mark the "No change fee" box directly below the "Flexible change policies" filter. Your low-priced, flexible flight to St. Charles County is just a few clicks away.
Which airlines fly to St. Charles County?
When you're ready to reserve your seat to or near St. Charles County, these well-known carriers are waiting to welcome you on board:

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

How can I find cheap tickets to St. Charles County?
An excellent strategy for walking away with cheap fares is to be flexible with your travel dates. Start by searching for your flight to St. Charles County, then click on the "flexible dates" link for a list of prices for nearby days. Want another tip? Book well ahead of time. To give you an idea of costs, ₩450,300 was the lowest price for a flight to St. Charles County in the last seven days.
How much is a flight to St. Charles County?
One-way flights taking off from Seattle (SEA) sold for as low as ₩161,000 in the last seven days. During this time, the price of a return airfare to St. Charles County varied between ₩450,300 and ₩1,452,900. If you find a deal, book as fast as you can — these fares don't stick around for long.
What are the most popular airports to fly into in St. Charles County?
Get ready to pack your bags and jet into Lambert-St. Louis Intl. Airport (STL), St. Charles County's leading flight hub. Lock in a seat on one of the 4,902 flights that land at this popular destination each month.
When is the cheapest time to fly to St. Charles County?
Fly out on a Tuesday to raise your chances of bagging the cheapest deal to St. Charles County. Mondays are usually the second most affordable day to take off. Saturday is typically the most expensive day to fly anywhere.
How much is a plane ticket to St. Charles County?
In the last seven days, plane tickets to St. Charles County fluctuated from ₩450,300 to ₩1,452,900.
What is the best time to go to St. Charles County?
Foristell, St. Charles County's most prominent city, is a terrific destination to explore at anytime. Not a big fan of chilly weather? Then journey here from June 20 onward during the summer months, when average temperatures vary from 65ºF to 85ºF. March, April and May is when Foristell is really buzzing.
What months are the cheapest to book a flight to St. Charles County?
A cheap month to score a fantastic deal to St. Charles County is February, whereas prices are at their highest in December. Keep clear of this month if you're on a tight budget.

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About St. Charles County

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About St. Charles County

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