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Incheon Intl

$463+ Cheap flights from Louisville (SDF) to Incheon Intl (ICN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — ICN
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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Cheap flight deals from Louisville to Incheon Intl

Cheapest flights from Louisville to Incheon Intl
Explore the most affordable flight options available from Louisville to Incheon Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.

This United Airlines deal was found by Cheapflights users on 12/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/149:00 amSDF - ICN
2 stops30h 40mUnited Airlines
Fri 1/96:00 pmICN - SDF
2 stops34h 26mUnited Airlines
Deal found 12/4$1,665
This United Airlines deal was found by Cheapflights users on 12/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/133:33 pmSDF - ICN
2 stops34h 42mUnited Airlines
Sat 12/206:00 pmICN - SDF
2 stops30h 03mUnited Airlines
Deal found 12/4$1,774
This Korean Air deal was found by Cheapflights users on 12/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:35 amSDF - ICN
1 stop18h 55mMultiple Airlines
Sat 12/207:30 pmICN - SDF
1 stop17h 33mMultiple Airlines
Deal found 12/4$2,019
This United Airlines deal was found by Cheapflights users on 12/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/173:40 pmSDF - ICN
2 stops34h 35mUnited Airlines
Wed 12/316:00 pmICN - SDF
2 stops34h 22mUnited Airlines
Deal found 12/4$2,203
This Delta deal was found by Cheapflights users on 12/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:35 amSDF - ICN
1 stop18h 55mDelta
Sat 12/202:30 pmICN - SDF
2 stops20h 21mDelta
Deal found 12/4$2,277
This Delta deal was found by Cheapflights users on 12/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/146:35 amSDF - ICN
2 stops19h 55mDelta
Fri 1/96:00 pmICN - SDF
1 stop16h 56mDelta
Deal found 12/4$2,410
This American Airlines deal was found by Cheapflights users on 12/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/147:12 amSDF - ICN
1 stop19h 33mAmerican Airlines
Fri 1/97:15 pmICN - SDF
1 stop36h 18mAmerican Airlines
Deal found 12/4$2,624
This Korean Air deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:35 amSDF - ICN
1 stop18h 55mMultiple Airlines
Wed 12/317:30 pmICN - SDF
1 stop17h 33mMultiple Airlines
Deal found 12/3$2,920

Find flight deals from Louisville to Incheon Intl

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Incheon Intl (ICN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$920
(Delta)

One-way from

$463
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$2,150
Provider with most accurate pricing for Louisville Intl-Incheon Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Incheon Intl flights.
Search Deals
From Louisville Intl to Incheon Intl
Search Deals
One-way flight from Louisville Intl to Incheon Intl
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($66 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to Incheon Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 4, 2025.
Use the filters below to find and compare flights from Louisville to Incheon Intl Airport that are best for you.

Fly from

Louisville

Fly to

Incheon Intl

Route

Depart

Return

Price

LouisvilleIncheon

SDF - ICN

SDFICN

Louisville Intl

Fri 1/23

3:30 pm-5:40 am

2 stops24h 10m

Incheon Intl

Tue 1/27

12:45 pm-8:28 pm

2 stops21h 43m

$920

LouisvilleIncheon

SDF - ICN

SDFICN

Louisville Intl

Sat 1/17

3:37 pm-3:30 pm

2 stops33h 53m

Incheon Intl

Sat 1/24

7:25 pm-11:50 pm

1 stop18h 25m

$920

LouisvilleIncheon

SDF - ICN

SDFICN

Louisville Intl

Mon 1/5

5:45 pm-3:30 pm

2 stops31h 45m

Incheon Intl

Fri 1/16

7:25 pm-11:55 pm

1 stop18h 30m

$1,120

LouisvilleIncheon

SDF - ICN

SDFICN

Louisville Intl

Fri 1/23

6:23 am-3:30 pm

1 stop19h 07m

Incheon Intl

Tue 1/27

9:35 am-6:11 pm

1 stop22h 36m

$1,179

LouisvilleIncheon

SDF - ICN

SDFICN

Louisville Intl

Mon 1/5

6:23 am-3:30 pm

1 stop19h 07m

Incheon Intl

Fri 1/16

7:30 pm-11:06 pm

1 stop17h 36m

$1,183

LouisvilleIncheon

SDF - ICN

SDFICN

Louisville Intl

Wed 5/13

6:36 am-5:20 pm

1 stop21h 44m

Incheon Intl

Wed 7/8

4:25 pm-10:36 pm

1 stop19h 11m

$1,187

LouisvilleIncheon

SDF - ICN

SDFICN

Louisville Intl

Fri 4/17

6:04 am-3:30 pm

1 stop20h 26m

Incheon Intl

Fri 4/24

5:25 pm-11:59 pm

1 stop19h 34m

$1,196

LouisvilleIncheon

SDF - ICN

SDFICN

Louisville Intl

Fri 4/10

7:53 am-3:30 pm

1 stop18h 37m

Incheon Intl

Fri 4/17

5:25 pm-11:59 pm

1 stop19h 34m

$1,196

LouisvilleIncheon

SDF - ICN

SDFICN

Louisville Intl

Fri 4/10

5:45 pm-4:20 am

2 stops21h 35m

Incheon Intl

Fri 4/17

11:30 am-10:03 pm

2 stops23h 33m

$1,200

LouisvilleIncheon

SDF - ICN

SDFICN

Louisville Intl

Fri 4/17

3:25 pm-4:20 am

2 stops23h 55m

Incheon Intl

Fri 4/24

4:50 pm-1:29 pm

2 stops33h 39m

$1,200

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 11 results
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Compare providers for flights from Louisville to Incheon Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Louisville to Incheon Intl in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Louisville-Incheon Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Louisville-Incheon Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Louisville-Incheon Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Louisville-Incheon Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Louisville-Incheon Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Louisville to Incheon Intl

Have a flexible travel schedule? Discover the best time to fly to Incheon Intl from Louisville with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Louisville to Incheon Intl Airport

What is the cheapest month to book a flight from Louisville to Incheon Intl Airport?

Currently, December is the cheapest month in which you can book a flight from Louisville to Incheon Intl Airport (average of $526). Flying from Louisville to Incheon Intl Airport in July is currently the most expensive (average of $1,127). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SDF to ICN?

Find hourly flight availability from Louisville to Incheon Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 4, 2025.

It’s typically best to fly out from Louisville to Incheon Intl Airport at noon. Doing so could potentially save you 37% on the flight price compared to flying in the evening, which is usually more expensive.

Reviews of airlines servicing Incheon Intl

Get insights into the airlines that provide service to Incheon Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Incheon Intl. Reviews last updated December 4, 2025.
Read through reviews of airlines operating flights from Louisville to Incheon Intl Airport, such as Korean Air, Delta, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,179 reviews

Boarding

8.5

Overall

8.4

Crew

8.7

Comfort

8.3

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,179 reviews
Korean Air
8.4
Very good
1,179 reviews

Boarding

8.5

Overall

8.4

Crew

8.7

Comfort

8.3

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Delta
7.9
Good
8,011 reviews
Korean Air
8.4
Very good
1,179 reviews

Boarding

8.5

Overall

8.4

Crew

8.7

Comfort

8.3

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
American Airlines
7.2
Good
11,043 reviews
Korean Air
8.4
Very good
1,179 reviews

Boarding

8.5

Overall

8.4

Crew

8.7

Comfort

8.3

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Louisville to Incheon Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Louisville to Incheon Intl?

    Louisville Intl (SDF), located 5.3 mi from the city center, is the airport you fly out of when you book flights from Louisville to Incheon Intl. 3 airlines have flights from Louisville Intl to Incheon Intl on a regular basis. Booking flights from Louisville Intl to Incheon Intl should not be difficult; the airport handles an average of 0 outbound flights to Incheon Intl per day.

  • How long is the flight from Louisville to Incheon Intl Airport?

    A quick flight from Louisville to Incheon Intl Airport can take about 19h 07m. United Airlines provides one of the quickest options available for as low as $1,179. The distance between Louisville and Incheon Intl Airport is about 6819 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Louisville to Incheon Intl Airport round-trip?

    Our cheapest airline available from Louisville to Incheon Intl Airport is Delta. Our recent data shows that you can find tickets from as low as $921 on this airline. Additional options worth looking into are American Airlines and Korean Air, starting at $952 and $1,046 round-trip. These flights start at 35% lower than the current average price 3 months from now.

  • Can I find deals for flights from Louisville to Incheon Intl that include hotel bookings?

    Yes. In addition to deals on Louisville to Incheon Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Louisville to Incheon Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to Incheon Intl.

  • Can I find deals for business class flights from Louisville to Incheon Intl?

    Yes. Cheapflights offers flight deals from Louisville to Incheon Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Louisville to Incheon Intl Airport?

    Currently, December is the cheapest month in which you can book a flight from Louisville to Incheon Intl Airport (average of $526). Flying from Louisville to Incheon Intl Airport in July is currently the most expensive (average of $1,127). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Incheon Intl Airport?

Book flights to Incheon Intl Airport if you plan to visit one of these locations
Suwon
Seongnam

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Alternative routes for Louisville to Incheon Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Louisville to Incheon Intl

Discover the top 3 airlines that operate flights from Louisville to Incheon Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$921Average$1,127FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$952Average$1,478FlexibilityNo cancel feeOn-time71%
Korean AirCheapest$1,112Average$1,650FlexibilityNo cancel feeOn-time81%

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