$1,744+ Cheap flights from Raleigh (RDU) 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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — USM
Jan 22 — Jan 291
1 adult, Economy
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Find cheap flights from Raleigh to Ko Samui with Cheapflights
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 Raleigh to Ko Samui
Best flights from Raleigh to Ko SamuiDiscover carefully curated flight deals from Raleigh to Ko Samui that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.
Discover carefully curated flight deals from Raleigh to Ko Samui that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.
This Ovago deal was found by Cheapflights users on 12/21. 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 2/36:03 pmRDU - USM
2 stops37h 32mMultiple Airlines
Fri 4/35:25 pmUSM - RDU
3 stops51h 57mMultiple Airlines
Deal found 12/21![Multiple Airlines logo]()
$1,744
This Qatar Airways deal was found by Cheapflights users on 12/21. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/32:51 pmRDU - USM
3 stops30h 29mQatar Airways
Fri 4/35:25 pmUSM - RDU
3 stops30h 28mQatar Airways
Deal found 12/21![Qatar Airways logo]()
$2,078
Find flight deals from Raleigh to Ko Samui
Discover tips and strategies to find the most affordable flight options for your journey from Raleigh (RDU) to Ko Samui (USM). 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 23, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $1,744 (Ovago) |
Cheapflights Fare Finder
Customize your flight search to find flights from Raleigh 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 December 23, 2025.
Use the filters below to find and compare flights from Raleigh to Ko Samui that are best for you.
Fly from
Raleigh
Fly to
Ko Samui
Route
Depart
Return
Price
RaleighKo Samui
RDU - USM
RDUUSM
Raleigh-Durham
Tue 2/3
6:03 pm-7:35 pm
2 stops37h 32m
Ko Samui
Fri 4/3
5:25 pm-10:22 am
3 stops51h 57m
$1,744
RaleighKo Samui
RDU - USM
RDUUSM
Raleigh-Durham
Tue 2/3
2:51 pm-9:20 am
3 stops30h 29m
Ko Samui
Fri 4/3
5:25 pm-12:53 pm
3 stops30h 28m
$2,078
Compare providers for flights from Raleigh to Ko Samui
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 Raleigh to Ko Samui in December.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Raleigh-Ko Samui flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Raleigh-Ko Samui flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Raleigh-Ko Samui flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Raleigh-Ko Samui 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 Raleigh-Ko Samui 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 Raleigh to Ko Samui
Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Raleigh 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 Raleigh to Ko Samui
Prices
Delays
What is the cheapest time of day to fly from RDU to USM?
Find hourly flight availability from Raleigh 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 December 23, 2025.
One of the essential ways to save on airfare from Raleigh to Ko Samui is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 77% on airfare.
What is the cheapest day to fly from Raleigh to Ko Samui?
Use this chart to determine the cheapest time to fly round-trip from Raleigh to Ko Samui. Price data was last updated on March 30, 2025.
Travelers seeking maximum savings on their Raleigh to Ko Samui flight should consider departing on Monday mornings when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
How often are flights from Raleigh to Ko Samui delayed?
About 12% of weekly flights between Raleigh and Ko Samui have experienced delays in the past year, with the average delay time being 129 minutes.
What is the most punctual flight time for Raleigh to Ko Samui flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Raleigh to Ko Samui flights?
Over the last year, Frontier have had the lowest number of delays on this route, with just 8% of flights being delayed.
Related info for your journey
Find useful and relevant information for your journey from Raleigh 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 Ko Samui?
Book flights to Ko Samui if you plan to visit one of these locationsKo Tao
Ko Pha Ngan