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Cheap Flights from St. Louis to Seoul $912.66

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Cheapest Flights from St. Louis to Seoul (STL to ICN)

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Interesting Facts About Flights from St. Louis to Seoul (STL to ICN)

Question : What day in the next four weeks has the best fares?
Answer : Since low prices are preferred, look at January 3rd. As of December 5th, the cheapest ticket sales are coming in 21% below the average price for this route, so you can spend that extra cash on an adventure in Seoul.

Question : How many days should you spend in Seoul if you're flying in from Saint Louis?
Answer : Over the next two months, passengers from STL to ICN are planning on staying for 23 days on average.

Question : Will you do what it takes to get the absolute cheapest flight?
Answer : The lowest-cost day to fly in December is Wednesday. Flexibility is paramount when booking travel plans in order to keep costs down.

Question : How often are prices changing for this route?
Answer : Prices for STL to ICN do fluctuate a lot more than most routes. However, the sooner you book, the better price you tend to get.