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$422+ Cheap flights from Key Largo, FL to Seoul (SEL)

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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SEL
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Key Largo to Seoul are usually found in January or February, booked 62 days in advance, depart on a Thursday or Monday and return on a Tuesday

Cheap flight deals from Key Largo to Seoul

Keep the following information in mind while searching for Key Largo to Seoul flight deals. Data was last updated June 12, 2025.

Round-trip from

$906
(American Airlines)

One-way from

$429
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$1,363
From Key Largo to Seoul (SEL)
Search Deals
One-way flight from Key Largo to Seoul (SEL)
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. 3% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Key Largo to Seoul

Cheapest flights from Key Largo to Seoul
Explore the most affordable flight options available from Key Largo to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Delta deal was found by Cheapflights users on 6/10. 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.
Tue 9/236:15 pmMIA - ICN
1 stop20h 45mDelta
Tue 10/77:40 pmICN - MIA
1 stop23h 27mDelta
Deal found 6/10$857
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 10/145:18 amMIA - ICN
1 stop21h 12mAmerican Airlines
Tue 10/286:50 pmICN - MIA
1 stop17h 18mAmerican Airlines
Deal found 6/10$867
This FlightHub deal was found by Cheapflights users on 6/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/149:09 pmMIA - GMP
2 stops35h 41mJapan Airlines
Tue 10/287:50 amGMP - MIA
2 stops49h 19mJapan Airlines
Deal found 6/10$913
This Japan Airlines deal was found by Cheapflights users on 6/10. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/219:30 pmMIA - GMP
2 stops24h 15mMultiple Airlines
Sat 10/257:55 amGMP - MIA
2 stops20h 21mMultiple Airlines
Deal found 6/10$941
This Air Canada deal was found by Cheapflights users on 6/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/196:25 pmMIA - ICN
1 stop32h 40mAir Canada
Wed 12/36:50 pmICN - MIA
1 stop36h 32mAir Canada
Deal found 6/12$955
This United Airlines deal was found by Cheapflights users on 6/9. 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.
Fri 10/313:45 pmMIA - ICN
2 stops23h 55mUnited Airlines
Mon 11/312:45 pmICN - MIA
2 stops23h 13mUnited Airlines
Deal found 6/9$958
This Expedia deal was found by Cheapflights users on 6/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/27:55 amMIA - ICN
1 stop19h 20mMultiple Airlines
Tue 9/1610:35 amICN - MIA
2 stops23h 59mMultiple Airlines
Deal found 6/11$993
This FlightHub deal was found by Cheapflights users on 6/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1910:30 pmMIA - ICN
1 stop29h 50mTurkish Airlines
Tue 12/212:10 amICN - MIA
1 stop34h 25mTurkish Airlines
Deal found 6/11$1,065
This SmartFares deal was found by Cheapflights users on 6/10. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/214:40 pmMIA - ICN
1 stop22h 20mKorean Air
Sat 10/259:30 amICN - MIA
1 stop23h 01mKorean Air
Deal found 6/10$1,072
This Vliegwinkel deal was found by Cheapflights users on 6/10. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/29:25 pmMIA - ICN
1 stop29h 05mFinnair
Mon 8/185:25 pmICN - MIA
1 stop20h 34mFinnair
Deal found 6/10$1,339
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/238:40 amMIA - GMP
2 stops24h 40mANA
Tue 10/77:55 pmGMP - MIA
2 stops32h 52mANA
Deal found 6/11$1,909

Cheapflights Fare Finder

Customize your flight search to find flights from Key Largo to Seoul 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 June 12, 2025.
Use the filters below to find and compare flights from Key Largo to Seoul that are best for you.

Fly from

Key Largo

Fly to

Seoul

Route

Depart

Return

Price

MiamiIncheon

MIA - ICN

MIAICN

Miami

Tue 9/23

6:15 pm-4:00 am

1 stop20h 45m

Incheon Intl

Tue 10/7

7:40 pm-6:07 am

1 stop23h 27m

$857

MiamiIncheon

MIA - ICN

MIAICN

Miami

Tue 10/14

5:18 am-3:30 pm

1 stop21h 12m

Incheon Intl

Tue 10/28

6:50 pm-11:08 pm

1 stop17h 18m

$867

MiamiIncheon

MIA - ICN

MIAICN

Miami

Wed 11/19

7:50 am-5:05 pm

2 stops43h 15m

Incheon Intl

Wed 12/3

6:50 pm-10:37 pm

2 stops41h 47m

$955

MiamiIncheon

MIA - ICN

MIAICN

Miami

Fri 10/31

3:45 pm-4:40 am

2 stops23h 55m

Incheon Intl

Mon 11/3

12:45 pm-9:58 pm

2 stops23h 13m

$958

MiamiIncheon

MIA - ICN

MIAICN

Miami

Tue 9/2

7:55 am-4:15 pm

1 stop19h 20m

Incheon Intl

Tue 9/16

10:35 am-9:34 pm

2 stops23h 59m

$993

MiamiIncheon

MIA - ICN

MIAICN

Miami

Wed 11/19

10:30 pm-6:20 pm

1 stop29h 50m

Incheon Intl

Tue 12/2

12:10 am-8:35 pm

1 stop34h 25m

$1,065

MiamiIncheon

MIA - ICN

MIAICN

Miami

Tue 10/21

4:40 pm-4:00 am

1 stop22h 20m

Incheon Intl

Sat 10/25

9:30 am-7:31 pm

1 stop23h 01m

$1,072

MiamiSeoul

MIA - GMP

MIAGMP

Miami

Wed 7/2

8:35 am-9:50 pm

2 stops24h 15m

Seoul Gimpo Intl

Tue 9/2

12:05 pm-2:50 pm

2 stops39h 45m

$1,137

MiamiIncheon

MIA - ICN

MIAICN

Miami

Sat 8/2

9:25 pm-3:30 pm

1 stop29h 05m

Incheon Intl

Mon 8/18

5:25 pm-12:59 am

1 stop20h 34m

$1,339

MiamiSeoul

MIA - GMP

MIAGMP

Miami

Sat 8/2

8:36 am-9:50 pm

2 stops24h 14m

Seoul Gimpo Intl

Mon 8/18

12:05 pm-8:57 pm

2 stops21h 52m

$1,567

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 25 results
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Best time to book a flight from Key Largo to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul from Key Largo 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 Key Largo to Seoul

How far ahead should I book a flight from Key Largo to Seoul?

Use this chart to determine the optimal time to book a round-trip flight from Key Largo to Seoul. Price data was last updated on June 9, 2025.

The price you pay for your flight from Key Largo to Seoul may vary depending on when you book. For the best chance of a lower fare, look to book 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Key Largo to Seoul?

Currently, February is the cheapest month in which you can book a flight from Key Largo to Seoul (average of $1,000). Flying from Key Largo to Seoul in December is currently the most expensive (average of $1,635). 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 KE9 to SEL?

Find hourly flight availability from Key Largo to Seoul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

When flying from Key Largo to Seoul, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Key Largo to Seoul?

Use this chart to determine the cheapest time to fly round-trip from Key Largo to Seoul. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Key Largo to Seoul flight should consider departing on Thursday afternoons when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Seoul by month

Plan your trip to Seoul by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seoul ranges from 1.1 - 10.0 inches per month. July is typically the wettest month, when rainfall can reach 10.0 in. December is typically the driest time to visit Seoul when rainfall is around 1.1 in.

Temperature in Seoul by month

Plan your trip to Seoul by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seoul, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Seoul

Get insights into the airlines that provide service to Seoul. 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 Seoul. Reviews last updated June 12, 2025.
Peruse reviews from past customers who have flown with Korean Air, Japan Airlines and ANA from Key Largo to Seoul to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,088 reviews

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

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
1,088 reviews
Korean Air
8.4
Very good
1,088 reviews

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

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.
Japan Airlines
8.3
Very good
1,490 reviews
Korean Air
8.4
Very good
1,088 reviews

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

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.
ANA
8.3
Very good
882 reviews
Korean Air
8.4
Very good
1,088 reviews

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

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
8.0
Very good
7,946 reviews
Korean Air
8.4
Very good
1,088 reviews

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

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.
Alaska Airlines
8.0
Very good
10,000 reviews
Korean Air
8.4
Very good
1,088 reviews

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

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 Key Largo to Seoul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Key Largo to Seoul one-way?

    $491 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on Japan Airlines and American Airlines, with prices starting from $493 and $499, respectively.

  • Can I find deals for flights from Key Largo to Seoul that include hotel bookings?

    Yes. In addition to deals on Key Largo to Seoul flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Key Largo to Seoul?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Key Largo to Seoul.

  • Can I find deals for business class flights from Key Largo to Seoul?

    Yes. Cheapflights offers flight deals from Key Largo to Seoul 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 Key Largo to Seoul?

    Currently, February is the cheapest month in which you can book a flight from Key Largo to Seoul (average of $1,000). Flying from Key Largo to Seoul in December is currently the most expensive (average of $1,635). 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

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Top 6 airlines flying from Key Largo to Seoul

Discover the top 6 airlines that operate flights from Key Largo to Seoul. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$575Average$1,279FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$660Average$1,498FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$789Average$1,163FlexibilityNo cancel feeOn-time67%
DeltaCheapest$876Average$1,314FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$1,052Average$1,520FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$1,079Average$1,163FlexibilityNo cancel feeOn-time77%

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