$635 Cheap Flights from St. Louis (STL) to Daegu (TAE)

View $635 flight on Sat, Oct 18, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Daegu (TAE-Daegu Intl.)

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Cheap Flights from St. Louis to Daegu (STL-TAE)

Prices were available within the past 7 days and start at $635 for one-way flights and $948 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, Sep 5 - Mon, Sep 22
STL
St. Louis
TAE
Daegu
$948 Roundtrip, found 6 days ago
$948
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Sep 5 from St. Louis to Daegu, returning Mon, Sep 22, priced at $948 found 6 days ago
Delta
Fri, Sep 5 - Sat, Sep 20
STL
St. Louis
TAE
Daegu
$1,231 Roundtrip, found 6 days ago
$1,231
Roundtrip
found 6 days ago
Select Delta flight, departing Fri, Sep 5 from St. Louis to Daegu, returning Sat, Sep 20, priced at $1,231 found 6 days ago
Delta
Fri, Sep 5 - Sun, Sep 21
STL
St. Louis
TAE
Daegu
$1,232 Roundtrip, found 6 days ago
$1,232
Roundtrip
found 6 days ago
Select Delta flight, departing Fri, Sep 5 from St. Louis to Daegu, returning Sun, Sep 21, priced at $1,232 found 6 days ago
Korean Air
Thu, Sep 18 - Mon, Sep 29
STL
St. Louis
TAE
Daegu
$1,233 Roundtrip, found 6 days ago
$1,233
Roundtrip
found 6 days ago
Select Korean Air flight, departing Thu, Sep 18 from St. Louis to Daegu, returning Mon, Sep 29, priced at $1,233 found 6 days ago
American Airlines
Fri, Sep 26 - Sat, Oct 11
STL
St. Louis
TAE
Daegu
$1,236 Roundtrip, found 6 days ago
$1,236
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Sep 26 from St. Louis to Daegu, returning Sat, Oct 11, priced at $1,236 found 6 days ago
Delta
Sat, Sep 20 - Mon, Oct 6
STL
St. Louis
TAE
Daegu
$1,237 Roundtrip, found 6 days ago
$1,237
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Sep 20 from St. Louis to Daegu, returning Mon, Oct 6, priced at $1,237 found 6 days ago
Delta
Thu, Oct 2 - Mon, Oct 13
STL
St. Louis
TAE
Daegu
$1,238 Roundtrip, found 6 days ago
$1,238
Roundtrip
found 6 days ago
Select Delta flight, departing Thu, Oct 2 from St. Louis to Daegu, returning Mon, Oct 13, priced at $1,238 found 6 days ago
Delta
Tue, Sep 16 - Sun, Sep 28
STL
St. Louis
TAE
Daegu
$1,239 Roundtrip, found 6 days ago
$1,239
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Sep 16 from St. Louis to Daegu, returning Sun, Sep 28, priced at $1,239 found 6 days ago
Delta
Thu, Oct 16 - Sat, Nov 1
STL
St. Louis
TAE
Daegu
$1,240 Roundtrip, found 6 days ago
$1,240
Roundtrip
found 6 days ago
Select Delta flight, departing Thu, Oct 16 from St. Louis to Daegu, returning Sat, Nov 1, priced at $1,240 found 6 days ago
Delta
Mon, Oct 13 - Wed, Oct 29
STL
St. Louis
TAE
Daegu
$1,241 Roundtrip, found 6 days ago
$1,241
Roundtrip
found 6 days ago
Select Delta flight, departing Mon, Oct 13 from St. Louis to Daegu, returning Wed, Oct 29, priced at $1,241 found 6 days ago

Alternative airports near Daegu

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Daegu Intl. TAE. Cheapest and Closest option available. Average driving time to city center is 20 minutes. Flights from $1,422
TAE
Daegu Intl.
CheapestClosest
Average driving time to city center20 min
Flights from $1,422
Flights from St. Louis (STL) to Daegu (TAE)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Daegu Intl.
Roundtrip price
$947
Distance
6710 mi

St. Louis to Daegu Flights

The cheapest times to fly from St. Louis to Daegu

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Daegu are during the month of September. You can find some of the cheapest flights from St. Louis to Daegu with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Daegu

Sunday is one of the best days to book for cheap flights from St. Louis to Daegu: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Daegu

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Daegu in 2025. You can also book with separate airlines for your outbound and return journeys, from $635 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Daegu flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Daegu airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Daegu Intl. Airport (TAE) cost?
Discover the latest flight deals from STL to TAE by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from STL to TAE?
The cheapest flights from STL to TAE are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from STL to TAE?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from STL to TAE. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Daegu Intl. Airport (TAE)?
You'll have to take a flight with a layover if you're traveling from Lambert-St. Louis Intl. Airport (STL) to Daegu Intl. Airport (TAE). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from STL to TAE?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary depending on a number of factors, such as the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Daegu Intl. Airport (TAE)?
Opt for a flight from Lambert-St. Louis Intl. Airport (STL) to Daegu Intl. Airport (TAE) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Daegu Intl. Airport (TAE) last-minute?
Last-minute fares from STL to TAE are usually more expensive. To lock in the lowest prices, start looking for flights well in advance. That said, if you can play around with your travel dates, it's possible to land a cheap ticket right before your trip.
Is it cheaper to book a STL to TAE flight and hotel package?
Securing a STL to TAE flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Choose from our impressive range of stays and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Daegu Intl. Airport (TAE)?
Typically, you can cancel or reschedule your STL to TAE flight. However, additional charges may apply, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you want more details, go to our Customer Service portal.

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*Available to One Key members.