$1,557+ Cheap flights from Key Largo, FL to Ko 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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — USM
Apr 7 — Apr 141
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Key Largo to Ko Samui
Keep the following information in mind while searching for Key Largo to Ko Samui flight deals. Data was last updated April 2, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $1,557 (Travelocity) |
Find flight deals from Key Largo to Ko Samui
Cheapest flights from Key Largo to Ko SamuiExplore the most affordable flight options available from Key Largo to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 2, 2025.
Explore the most affordable flight options available from Key Largo to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 2, 2025.
This Travelocity deal was found by Cheapflights users on 4/1. 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.
Sun 5/1111:55 pmMIA - USM
2 stops47h 35mMultiple Airlines
Thu 5/158:00 amUSM - MIA
2 stops37h 05mMultiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$1,557
Cheapflights Fare Finder
Customize your flight search to find flights from Key Largo to Ko 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 April 2, 2025.
Use the filters below to find and compare flights from Key Largo to Ko Samui that are best for you.
Fly from
Key Largo
Fly to
Ko Samui
Route
Depart
Return
Price
MiamiKo Samui
MIA - USM
MIAUSM
Miami
Sun 5/11
11:55 pm-10:30 am
2 stops47h 35m
Ko Samui
Thu 5/15
8:00 am-10:05 am
2 stops37h 05m
$1,557
Best time to book a flight from Key Largo to Ko Samui
Have a flexible travel schedule? Discover the best time to fly to Ko 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.
Cheapflights Insights
Everything you need to know about your flight from Key Largo to Ko Samui
What is the cheapest time of day to fly from KE9 to USM?
Find hourly flight availability from Key Largo to Ko Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 2, 2025.
When flying from Key Largo to Ko 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 Ko Samui?
Use this chart to determine the cheapest time to fly round-trip from Key Largo to Ko Samui. Price data was last updated on March 30, 2025.
Travelers seeking maximum savings on their Key Largo to Ko 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 Ko Samui by month
Plan your trip to Ko Samui by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Ko 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 Ko Samui when rainfall is around 2.3 in.
Temperature in Ko Samui by month
Plan your trip to Ko Samui by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Ko 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).
Related info for your journey
Find useful and relevant information for your journey from Key Largo to Ko Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Key Largo?
Book flights to Key Largo if you plan to visit one of these locationsKo Tao
Ko Pha Ngan
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Alternative routes for Key Largo to Ko Samui
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Key Largo to Ko Samui
Discover the top airline that operate flights from Key Largo to Ko 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 April 2, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,338 | Average$1,479 | FlexibilityNo cancel fee | On-time68% |