Ko Samui

$489+ Cheap flights to Ko Samui

— USM
Oct 7 — Oct 141
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Flights to Ko Samui in 2026

Cheapest flights to Ko Samui

Sun 10/1810:00 am -
2 stops24h 35m
Sun 10/253:35 pm -
2 stops25h 10m
Deal found 9/3$934
Sat 10/241:00 am -
2 stops43h 10m
Thu 10/297:55 am -
2 stops49h 35m
Deal found 9/6$1,007
Mon 10/53:45 pm -
2 stops28h 25m
Mon 10/123:25 pm -
2 stops35h 35m
Deal found 9/5$1,034
Thu 11/510:30 am -
2 stops32h 40m
Thu 11/127:00 am -
2 stops26h 00m
Deal found 9/3$1,040
Wed 9/2310:00 am -
2 stops24h 35m
Mon 10/56:00 am -
2 stops25h 35m
Deal found 9/5$1,056
Sun 11/11:40 pm -
2 stops29h 30m
Sat 11/78:30 am -
2 stops33h 15m
Deal found 9/6$1,075
Sun 10/2511:00 pm -
2 stops23h 20m
Wed 10/289:40 am -
2 stops34h 20m
Deal found 9/5$1,083
Sat 10/33:45 pm -
2 stops28h 25m
Sat 10/105:55 pm -
2 stops25h 40m
Deal found 9/3$1,088
Mon 9/2810:55 am -
2 stops34h 30m
Wed 10/76:00 am -
2 stops27h 30m
Deal found 9/6$1,108
Thu 10/2210:00 pm -
2 stops26h 40m
Thu 10/293:50 pm -
2 stops34h 45m
Deal found 9/6$1,116
Wed 9/239:35 pm -
2 stops33h 25m
Mon 10/57:00 pm -
2 stops31h 10m
Deal found 9/2$1,126
Sun 10/2511:20 am -
2 stops32h 50m
Thu 10/299:30 pm -
2 stops29h 05m
Deal found 9/5$1,132

Find flight deals to Ko Samui

Popular in

December

Cheapest in

February

Average price

$1,679

Round-trip from

$880

One-way from

$446
Highest demand for flights based on searches. 19% potential increase in price ($419 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($71 potential savings vs. average RT price).
Average for round-trip flights in September 2026
From New York to Ko Samui
One-way flight from New York to Ko Samui (USM)

Cheapflights Fare Finder

 
Use the filters below to find and compare flights to Ko Samui that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest round-trip

New YorkKo Samui

JFK New York John F Kennedy Intl - USM Ko Samui

JFKUSM

New York John F Kennedy Intl

Wed 9/16

1:55 am-3:25 pm

2 stops26h 30m

Ko Samui

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$489

New YorkKo Samui

JFK New York John F Kennedy Intl - USM Ko Samui

JFKUSM

New York John F Kennedy Intl

Fri 9/18

2:55 pm-7:40 pm

1 stop41h 45m

Ko Samui

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$498

NewarkKo Samui

EWR Newark - USM Ko Samui

EWRUSM

Newark

Tue 9/15

1:00 am-8:25 pm

3 stops56h 25m

Ko Samui

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$518

New YorkKo Samui

JFK New York John F Kennedy Intl - USM Ko Samui

JFKUSM

New York John F Kennedy Intl

Sat 11/7

10:00 pm-10:35 am

2 stops24h 35m

Ko Samui

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$591

New YorkKo Samui

JFK New York John F Kennedy Intl - USM Ko Samui

JFKUSM

New York John F Kennedy Intl

Fri 9/25

10:20 pm-4:35 pm

2 stops31h 15m

Ko Samui

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$618

NewarkKo Samui

EWR Newark - USM Ko Samui

EWRUSM

Newark

Thu 9/17

6:30 am-7:40 pm

2 stops26h 10m

Ko Samui

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$676

NewarkKo Samui

EWR Newark - USM Ko Samui

EWRUSM

Newark

Sat 9/26

12:25 am-4:35 pm

2 stops29h 10m

Ko Samui

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$737

NewarkKo Samui

EWR Newark - USM Ko Samui

EWRUSM

Newark

Sun 9/27

12:25 am-5:05 pm

2 stops29h 40m

Ko Samui

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$737
Quickest round-trip

NewarkKo Samui

EWR Newark - USM Ko Samui

EWRUSM

Newark

Fri 11/6

1:25 am-1:05 pm

2 stops23h 40m

Ko Samui

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$833

New YorkKo Samui

JFK New York John F Kennedy Intl - USM Ko Samui

JFKUSM

New York John F Kennedy Intl

Sat 11/7

8:55 pm-5:00 pm

3 stops32h 05m

Ko Samui

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$949

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/6

Showing 1-10 of 32 resultsSorted by cheapest first
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Compare providers for flights to Ko Samui

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals to Ko Samui in September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: Out of all of the providers offering Ko Samui flight deals, Cheapflights users have found AranGrant to have the most accurate pricing on Cheapflights vs. their site about >95% of the time, users can find the same price on Ko Samui flight deals on Cheapflights and AranGrant. This is based on searches made for Ko Samui flights over the past month.
  • Most trusted provider: AranGrant is the most trusted provider by Cheapflights users offering Ko Samui flight deals. With a user feedback rating of 3 out of 3 stars (3 being the best), AranGrant has received the most positive sentiment from Cheapflights users searching for flights to Ko Samui. This is based on data collected from Cheapflights searches made over the past month.

Best time to book a flight to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight to Ko Samui

How long is the flight to Ko Samui?

On average, a flight from New York to Ko Samui takes 26 hours 12 minutes. Flights to Ko Samui from other popular cities in USA will vary in length. Below are a few examples of popular routes and their flight times.

Rainfall in Ko Samui 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

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).

The best insider tips for flights to Ko Samui

Cheapflights partnered with top experts to bring you the best recommendations for your Ko Samui trip
Our travel experts
Duncan Madden

Duncan Madden

Expert on EVA Air

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Brandon Schultz

Brandon Schultz

Expert on Qatar Airways

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Gabriel Leigh

Gabriel Leigh

Expert on Singapore Airlines

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Ramsey Qubein

Ramsey Qubein

Expert on USM

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Reviews of airlines servicing Ko Samui

Get a feel of what it's like to fly with EVA Air and Singapore Airlines to Thailand by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

8.0

Food

8.1

Crew

8.7

Comfort

8.3

Boarding

8.5

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Daisy,May 2026

SFO - TPE

This ways excellent experience when I took the EVA airline. We will take EVA again!

Entertainment

8.0

Food

8.1

Crew

8.7

Comfort

8.3

Boarding

8.5

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Daisy,May 2026

SFO - TPE

This ways excellent experience when I took the EVA airline. We will take EVA again!

Entertainment

8.0

Food

8.1

Crew

8.7

Comfort

8.3

Boarding

8.5

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Daisy,May 2026

SFO - TPE

This ways excellent experience when I took the EVA airline. We will take EVA again!

FAQs about flying to Ko Samui

Before traveling to Koh Samui, ensure your passport is valid for the duration of your planned trip date from Thailand. Most travelers, including U.S. citizens, can enter Thailand without a visa for up to 30 days for tourism purposes. However, visa requirements can vary based on nationality, so it's important to verify the specific requirements for your country. Carrying a copy of your passport and entry stamp is also advisable while exploring the island.

Koh Samui is served by Samui International Airport (USM), which hosts both domestic and international flights. The airport is well-connected with direct flights from major cities in Thailand like Bangkok, Phuket, and Chiang Mai, as well as international flights from select locations. For travelers coming from further afield, connecting through Bangkok's Suvarnabhumi Airport (BKK) or Don Mueang International Airport (DMK) is often the most convenient route, with frequent short-haul flights to Koh Samui. Booking flights in advance is especially recommended during peak tourist seasons like the dry months between December and February.

Upon arriving in Koh Samui, it's important to be aware of Thailand's strict regulations on importing certain items. This includes tight restrictions on bringing in plants, food items, and animal products to protect the local environment and agriculture. Customs officials at Samui International Airport (USM) may inspect your luggage for such items. To avoid any issues upon arrival, familiarize yourself with Thailand's customs regulations regarding prohibited and restricted items. This awareness is not only crucial for a hassle-free entry but also helps in preserving the delicate ecosystem of the island.

  • What should I pack for a trip to Koh Samui?

    For a trip to Koh Samui, Thailand's idyllic island, your packing list should cater to a tropical beach environment. Light, airy clothing is essential due to the warm, humid climate prevalent year-round. Essentials include swimwear for the island's stunning beaches, a sunhat, UV-protection sunglasses, and plenty of sunscreens to shield against the intense tropical sun. Casual beachwear is perfect for daytime, while evenings can call for slightly smarter attire, especially if you plan to visit upscale restaurants or beach clubs. A light rain jacket or umbrella is advisable, particularly if you’re visiting during the monsoon season from September to November. Comfortable sandals are ideal for the beach and general exploring, while a pair of closed-toe shoes may be needed for certain activities or dining establishments. Don’t forget to pack insect repellent to protect against mosquitoes, especially during the evening or when visiting more remote areas of the island.

  • What are some activities and attractions in Koh Samui?

    Koh Samui is renowned for its stunning natural beauty, vibrant nightlife, and rich cultural heritage. The island’s beaches, such as Chaweng, Lamai, and Maenam, offer crystal-clear waters and soft sands, perfect for relaxation, swimming, and water sports. For a cultural experience, visit the Big Buddha Temple (Wat Phra Yai) and the beautifully ornate Wat Plai Laem. Nature enthusiasts will enjoy a trip to Angthong National Marine Park, a pristine archipelago ideal for snorkeling, kayaking, and hiking. The Na Muang Waterfalls, with their natural beauty and swimming spots, are a refreshing escape. For a unique experience, visit the Fisherman’s Village in Bophut, known for its rustic buildings, boutique shops, and lively night market. The island also offers a range of wellness and spa retreats, reflecting Thailand’s reputation for excellent therapeutic treatments.

  • Is there public transportation from Samui International Airport to downtown areas in Koh Samui?

    Public transportation options from Samui International Airport (USM) to major areas on Koh Samui are somewhat limited. The most common and convenient way to travel around the island is by taxi or minivan, both of which are readily available at the airport. These offer direct travel to your hotel or other destinations on the island. While there are no formal bus services directly from the airport, shared minivan services can be a cost-effective option, especially if you’re traveling alone or with a small group. For greater flexibility and the freedom to explore the island at your leisure, renting a scooter or a car is a popular choice among visitors. It's recommended to book your transportation from the airport in advance, particularly during peak tourist seasons, to ensure a smooth start to your stay in Koh Samui.

  • What airport do you fly into for flights to Ko Samui?

    For a flight to Ko Samui, you will be flying into Ko Samui. Ko Samui (USM) is just 2.1 mi from the center of the city.

  • Can I find cheaper flights to Ko Samui if I am willing to have layovers?

    Yes, flights with layovers are often cheaper than direct flights. Keep an eye out for flight deals to Ko Samui on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Ko Samui?

    Based on reviews from Cheapflights users, Singapore Airlines is rated the highest out of the airlines that fly to Ko Samui.

  • What is the cheapest airport to fly to in Ko Samui?

    Ko Samui is currently the cheapest airport to fly to in Ko Samui. One-way flights to Ko Samui typically cost $56, while round-trip flights cost around $125.

  • How much is a round-trip flight to Ko Samui?

    A round-trip flight to Ko Samui will typically cost around $216, however they can be found for as little as $125.

  • Where does the fastest flight to Ko Samui depart from?

    For those looking to save time traveling to Ko Samui, New York offers the quickest one-way flight (22 hours 15 minutes).

  • Does Ko Samui have rental cars?

    Yes. Those touching down at Ko Samui can take advantage of the rental car services offered upon their arrival.

  • Are there hotels close to Ko Samui?

    Yes. Ko Samui has hotels nearby for those requiring accommodations. Diamond Pool Villa Samui is the closest property to Ko Samui (0.0 mi away from Ko Samui).

See more FAQs

Traveling to a place near Ko Samui?

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

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