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Koh Samui

$1,352+ Cheap flights from Key Largo, FL to Koh Samui (USM)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/13. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — USM
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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Cheap flight deals from Key Largo to Koh Samui

Keep the following information in mind while searching for Key Largo to Koh Samui flight deals. Data was last updated febrero 20, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
1 star

Round-trip from

$1,352
(Gotogate)
Provider with most accurate pricing for Miami-Ko Samui flight deals.
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Provider most trusted by Cheapflights users for Miami-Ko Samui flights.
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From Key Largo to Ko Samui
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Find flight deals from Key Largo to Koh Samui

Cheapest flights from Key Largo to Koh Samui
Explore the most affordable flight options available from Key Largo to Koh Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 20, 2025.

This Gotogate deal was found by Cheapflights users on 2/18. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 3/136:25 pmMIA - USM
2 stops31h 40mMultiple Airlines
mar. 3/189:25 pmUSM - MIA
2 stops30h 57mMultiple Airlines
Deal found 2/18$1,352
This FlightHub deal was found by Cheapflights users on 2/19. 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.
mar. 3/1811:30 pmMIA - USM
2 stops31h 00mQatar Airways
mar. 3/253:05 pmUSM - MIA
2 stops37h 20mQatar Airways
Deal found 2/19$1,430
This FlightHub deal was found by Cheapflights users on 2/18. 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.
jue. 6/1210:15 pmMIA - USM
2 stops28h 30mTurkish Airlines
vie. 6/207:15 pmUSM - MIA
2 stops36h 05mTurkish Airlines
Deal found 2/18$1,745
This Gurufare deal was found by Cheapflights users on 2/19. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/181:05 pmMIA - USM
3 stops45h 00mSingapore Airlines
mar. 3/251:25 pmUSM - MIA
3 stops44h 09mSingapore Airlines
Deal found 2/19$2,558
This StudentUniverse deal was found by Cheapflights users on 2/18. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/122:22 pmMIA - USM
3 stops39h 28mLufthansa
vie. 6/204:25 pmUSM - MIA
2 stops33h 15mLufthansa
Deal found 2/18$2,723
This Justfly.com deal was found by Cheapflights users on 2/20. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 3/305:08 pmMIA - USM
2 stops38h 27mCathay Pacific
dom. 4/1310:55 amUSM - MIA
2 stops45h 33mCathay Pacific
Deal found 2/20$6,483
This SWISS deal was found by Cheapflights users on 2/20. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 3/295:40 pmMIA - USM
2 stops29h 50mSWISS
dom. 4/138:45 amUSM - MIA
2 stops40h 30mSWISS
Deal found 2/20$6,702

Find flights from Key Largo to Koh Samui within your budget

Customize your flight search to find flights from Key Largo to Koh Samui 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 febrero 20, 2025.

Fly from

Key Largo

Fly to

Koh Samui

Route

Depart

Return

Price

MiamiKoh Samui

MIA - USM

MIAUSM

Miami

jue. 3/13

6:25 pm-1:05 pm

2 stops31h 40m

Ko Samui

mar. 3/18

9:25 pm-5:22 pm

2 stops30h 57m

$1,352

MiamiKoh Samui

MIA - USM

MIAUSM

Miami

mar. 3/18

11:30 pm-5:30 pm

2 stops31h 00m

Ko Samui

mar. 3/25

3:05 pm-5:25 pm

2 stops37h 20m

$1,430

MiamiKoh Samui

MIA - USM

MIAUSM

Miami

mar. 3/18

1:05 pm-9:05 pm

3 stops45h 00m

Ko Samui

mar. 3/25

1:25 pm-10:34 pm

3 stops44h 09m

$2,558

MiamiKoh Samui

MIA - USM

MIAUSM

Miami

dom. 3/30

5:08 pm-6:35 pm

2 stops38h 27m

Ko Samui

dom. 4/13

10:55 am-9:28 pm

2 stops45h 33m

$6,483

MiamiKoh Samui

MIA - USM

MIAUSM

Miami

sáb. 3/29

5:40 pm-10:30 am

2 stops29h 50m

Ko Samui

dom. 4/13

8:45 am-2:15 pm

2 stops40h 30m

$6,702

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/18

Best time to book a flight from Key Largo to Koh Samui

Have a flexible travel schedule? Discover the best time to fly to Koh Samui 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.

Travel insights for flights from Key Largo to Koh Samui

Get recent, data-driven insights about flights from Key Largo to Koh Samui including ideal travel times, pricing trends, and more.

What is the cheapest time of day to fly from KE9 to USM?

Find hourly flight availability from Key Largo to Koh Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated febrero 20, 2025.

When flying from Key Largo to Koh Samui, 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 Koh Samui?

Use this chart to determine the cheapest time to fly round-trip from Key Largo to Koh Samui. Price data was last updated on February 16, 2025.

Travelers seeking maximum savings on their Key Largo to Koh Samui flight should consider departing on Thursday mornings when fares are most often at their lowest. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Koh Samui by month

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

In terms of precipitation, rainfall in Koh Samui ranges from 2.3 - 19.3 inches per month. November is typically the wettest month, when rainfall can reach 19.3 in. February is typically the driest time to visit Koh Samui when rainfall is around 2.3 in.

Temperature in Koh Samui by month

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

If weather is an important factor for your trip to Koh Samui, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 80.6 F).

Reviews of airlines servicing Koh Samui

Get insights into the airlines that provide service to Koh Samui. 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 Koh Samui. Reviews last updated febrero 20, 2025.
Singapore Airlines
8.1
Very good
1,299 reviews

Comfort

7.9

Overall

8.1

Crew

8.6

Food

7.7

Boarding

8.2

Entertainment

8.0

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

Singapore Airlines
8.1
Very good
1,299 reviews
Singapore Airlines
8.1
Very good
1,299 reviews

Comfort

7.9

Overall

8.1

Crew

8.6

Food

7.7

Boarding

8.2

Entertainment

8.0

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

Cathay Pacific
7.5
Good
821 reviews
Singapore Airlines
8.1
Very good
1,299 reviews

Comfort

7.9

Overall

8.1

Crew

8.6

Food

7.7

Boarding

8.2

Entertainment

8.0

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

SWISS
7.5
Good
1,568 reviews
Singapore Airlines
8.1
Very good
1,299 reviews

Comfort

7.9

Overall

8.1

Crew

8.6

Food

7.7

Boarding

8.2

Entertainment

8.0

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

Qatar Airways
7.4
Good
3,609 reviews
Singapore Airlines
8.1
Very good
1,299 reviews

Comfort

7.9

Overall

8.1

Crew

8.6

Food

7.7

Boarding

8.2

Entertainment

8.0

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

Turkish Airlines
7.3
Good
3,832 reviews
Singapore Airlines
8.1
Very good
1,299 reviews

Comfort

7.9

Overall

8.1

Crew

8.6

Food

7.7

Boarding

8.2

Entertainment

8.0

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

Related info for your journey

Find useful and relevant information for your journey from Key Largo to Koh Samui. 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 into for flights to Koh Samui from Key Largo?

    Located just 2.1 mi from the city center, Ko Samui is the airport most travelers will use when flying to Koh Samui from Key Largo. Booking flights from Key Largo to Ko Samui (USM) should be relatively easy as there are 0 daily inbound flights from Key Largo from 1 airline.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Key Largo to Koh Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Key Largo?

Book flights to Key Largo if you plan to visit one of these locations
Ko Pha Ngan
Ko Tao

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Top airline flying from Key Largo to Koh Samui

Discover the top airline that operate flights from Key Largo to Koh Samui. 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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest$1,338Average$1,479FlexibilityNo cancel feeOn-time68%
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