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$413+ 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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SEL
Dec 4 — Dec 111
Thu 12/4
Thu 12/11
1 adult, Economy
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Cheapflights Tip: The best prices from Key Largo to Seoul are usually found in January or October, 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 November 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$789
(Kiwi.com)

One-way from

$413
(Air Canada)

Popular in

May

Cheapest in

January

Average price

$1,074
Provider with most accurate pricing for Miami-Seoul (SEL) flight deals.
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Provider most trusted by Cheapflights users for Miami-Seoul (SEL) flights.
Search Deals
From Key Largo to Seoul (SEL)
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One-way flight from Key Largo to Seoul (SEL)
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($148 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 4, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/28:21 amMIA - ICN
1 stop31h 19mMultiple Airlines
Sun 12/79:20 pmICN - MIA
2 stops27h 28mMultiple Airlines
Deal found 11/2$789
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/212:41 pmMIA - ICN
1 stop26h 59mMultiple Airlines
Sun 12/149:20 pmICN - MIA
2 stops27h 28mMultiple Airlines
Deal found 11/3$805
This Air Canada deal was found by Cheapflights users on 11/4. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/198:00 amMIA - ICN
2 stops43h 10mAir Canada
Wed 12/35:55 pmICN - MIA
2 stops42h 34mAir Canada
Deal found 11/4$831
This Air Canada deal was found by Cheapflights users on 11/2. 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.
Tue 11/189:05 pmMIA - ICN
1 stop31h 20mAir Canada
Tue 12/96:55 pmICN - MIA
2 stops31h 39mAir Canada
Deal found 11/2$838
This Air Canada deal was found by Cheapflights users on 11/2. 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 11/2612:25 pmMIA - ICN
2 stops38h 45mAir Canada
Wed 12/175:55 pmICN - MIA
2 stops20h 21mAir Canada
Deal found 11/2$839
This Air Canada deal was found by Cheapflights users on 11/3. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:25 amMIA - ICN
1 stop21h 00mAir Canada
Wed 12/105:55 pmICN - MIA
2 stops32h 39mAir Canada
Deal found 11/3$841
This Orbitz deal was found by Cheapflights users on 11/2. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/28:00 amMIA - ICN
2 stops24h 25mMultiple Airlines
Tue 12/98:10 pmICN - MIA
1 stop38h 06mMultiple Airlines
Deal found 11/2$861
This Air Canada deal was found by Cheapflights users on 11/3. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2412:25 pmMIA - ICN
2 stops38h 45mAir Canada
Sat 2/216:55 pmICN - MIA
2 stops30h 44mAir Canada
Deal found 11/3$869
This Air Canada deal was found by Cheapflights users on 11/3. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2412:25 pmMIA - ICN
2 stops38h 45mAir Canada
Sat 12/136:55 pmICN - MIA
2 stops31h 39mAir Canada
Deal found 11/3$872
This Ovago deal was found by Cheapflights users on 11/3. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/27:09 amMIA - GMP
2 stops24h 56mJapan Airlines
Sun 12/148:00 amGMP - MIA
2 stops28h 00mJapan Airlines
Deal found 11/3$999
This Expedia deal was found by Cheapflights users on 11/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/27:09 amMIA - GMP
2 stops24h 56mJapan Airlines
Tue 12/97:40 pmGMP - MIA
2 stops39h 23mJapan Airlines
Deal found 11/4$1,001
This Travelocity deal was found by Cheapflights users on 11/3. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/17:09 amMIA - GMP
2 stops24h 56mJapan Airlines
Mon 12/812:05 pmGMP - MIA
2 stops39h 58mJapan Airlines
Deal found 11/3$1,051

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 November 4, 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

Wed 1/14

6:20 pm-5:45 am

1 stop21h 25m

Incheon Intl

Mon 1/19

7:25 pm-10:48 pm

1 stop17h 23m

$957

MiamiIncheon

MIA - ICN

MIAICN

Miami

Fri 2/27

4:36 pm-4:50 pm

2 stops34h 14m

Incheon Intl

Sun 3/15

7:40 pm-6:15 am

1 stop23h 35m

$962

MiamiIncheon

MIA - ICN

MIAICN

Miami

Fri 2/27

4:36 pm-4:50 pm

2 stops34h 14m

Incheon Intl

Wed 3/11

7:25 pm-12:57 am

1 stop18h 32m

$962

MiamiIncheon

MIA - ICN

MIAICN

Miami

Fri 2/27

4:36 pm-4:50 pm

2 stops34h 14m

Incheon Intl

Mon 3/16

7:25 pm-12:57 am

1 stop18h 32m

$962

MiamiSeoul

MIA - GMP

MIAGMP

Miami

Tue 12/2

7:09 am-10:05 pm

2 stops24h 56m

Seoul Gimpo Intl

Sun 12/14

8:00 am-10:00 pm

2 stops28h 00m

$999

MiamiSeoul

MIA - GMP

MIAGMP

Miami

Tue 12/2

7:09 am-10:05 pm

2 stops24h 56m

Seoul Gimpo Intl

Tue 12/9

12:05 pm-9:03 pm

2 stops46h 58m

$1,001

MiamiIncheon

MIA - ICN

MIAICN

Miami

Thu 2/26

6:00 am-4:50 pm

2 stops20h 50m

Incheon Intl

Sat 3/14

6:00 pm-12:57 am

1 stop19h 57m

$1,014

MiamiSeoul

MIA - GMP

MIAGMP

Miami

Mon 1/19

7:55 pm-6:20 pm

2 stops32h 25m

Seoul Gimpo Intl

Sat 1/31

8:00 am-9:09 pm

2 stops27h 09m

$1,020

MiamiIncheon

MIA - ICN

MIAICN

Miami

Sat 2/28

8:35 am-5:40 am

1 stop31h 05m

Incheon Intl

Tue 3/17

11:45 am-5:50 am

3 stops31h 05m

$1,039

MiamiSeoul

MIA - GMP

MIAGMP

Miami

Mon 12/1

7:09 am-10:05 pm

2 stops24h 56m

Seoul Gimpo Intl

Mon 12/8

12:05 pm-2:03 pm

2 stops39h 58m

$1,051

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 35 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 October 31, 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, November is the cheapest month in which you can book a flight from Key Largo to Seoul (average of $512). Flying from Key Largo to Seoul in December is currently the most expensive (average of $1,234). 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 November 4, 2025.

It’s typically best to fly out from Key Largo to Seoul in the afternoon. Doing so could potentially save you 16% on the flight price compared to flying in the evening, which is usually more expensive.

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 Monday afternoons when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Key Largo to Seoul?

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 November 4, 2025.
See what other customers who have flown with Korean Air, Delta, and United Airlines from Key Largo to Seoul have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,160 reviews

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Crew

8.7

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
1,160 reviews
Korean Air
8.4
Very good
1,160 reviews

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Crew

8.7

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
8,002 reviews
Korean Air
8.4
Very good
1,160 reviews

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Crew

8.7

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.
United Airlines
7.4
Good
8,998 reviews
Korean Air
8.4
Very good
1,160 reviews

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Crew

8.7

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
11,038 reviews
Korean Air
8.4
Very good
1,160 reviews

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Crew

8.7

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.
Air Canada
7.1
Good
10,400 reviews
Korean Air
8.4
Very good
1,160 reviews

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Crew

8.7

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.

  • How long is the flight from Key Largo to Seoul?

    Delta and Japan Airlines can get you from Key Largo to Seoul in just under 21h 25m. Your travel time can differ by up to 3h 31m. Key Largo and Seoul are separated by a distance of 7729 mi. This flight may include one or multiple stops.

  • 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, November is the cheapest month in which you can book a flight from Key Largo to Seoul (average of $512). Flying from Key Largo to Seoul in December is currently the most expensive (average of $1,234). 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 5 airlines flying from Key Largo to Seoul

Discover the top 5 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 November 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$430Average$1,669FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$789Average$1,162FlexibilityNo cancel feeOn-time67%
DeltaCheapest$826Average$1,305FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$856Average$1,333FlexibilityNo cancel feeOn-time71%
Korean AirCheapest$1,052Average$1,516FlexibilityNo cancel feeOn-time81%

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