$543 Cheap Flights to Ko Samui
One-way
Departing from
United States
Going to
Ko Samui, Thailand
Ko Samui (USM)
Thailand • May, 2026
91% AI deal score
$1,550 $543
Ko Samui (USM)
Thailand • February, 2026
88% AI deal score
$1,225 $592
Top Cheap Flight Deals from United States to Ko Samui
Recent round-trip flight deals to Ko Samui
Wed, Mar 11 - Thu, Mar 19
Cheapest
New York (JFK) - Ko Samui (USM)
Philippine Airlines airlines • 2 stops • Manila (MNL), Bangkok (BKK)
Ko Samui (USM) - New York (JFK)
Bangkok Airways airlines • 2 stops • Bangkok (BKK), Manila (MNL)
$1,550
$900
-$650
42%
Wed, Mar 11 - Thu, Mar 19
New York (JFK) - Ko Samui (USM)
Philippine Airlines airlines • 2 stops • Manila (MNL), Bangkok (BKK)
Ko Samui (USM) - New York (JFK)
Bangkok Airways airlines • 2 stops • Bangkok (BKK), Manila (MNL)
$1,550
$921
-$629
41%
Wed, Mar 11 - Thu, Mar 19
New York (JFK) - Ko Samui (USM)
Philippine Airlines airlines • 2 stops • Manila (MNL), Bangkok (BKK)
Ko Samui (USM) - New York (JFK)
Bangkok Airways airlines • 2 stops • Bangkok (BKK), Manila (MNL)
$1,550
$933
-$617
40%
Fri, Mar 13 - Thu, Mar 19
New York (JFK) - Ko Samui (USM)
Philippine Airlines airlines • 2 stops • Manila (MNL), Bangkok (BKK)
Ko Samui (USM) - New York (JFK)
Bangkok Airways airlines • 2 stops • Bangkok (BKK), Manila (MNL)
$1,550
$941
-$609
39%
Sun, Mar 8 - Thu, Mar 19
New York (JFK) - Ko Samui (USM)
Philippine Airlines airlines • 2 stops • Manila (MNL), Bangkok (BKK)
Ko Samui (USM) - New York (JFK)
Bangkok Airways airlines • 2 stops • Bangkok (BKK), Manila (MNL)
$1,550
$949
-$601
39%
Wed, Apr 22 - Wed, May 20
New York (JFK) - Ko Samui (USM)
Air India Limited airlines • 2 stops • Mumbai (BOM), Bangkok (BKK)
Ko Samui (USM) - New York (JFK)
Bangkok Airways airlines • 2 stops • Bangkok (BKK), Manila (MNL)
$1,550
$955
-$595
38%
The cheapest time to fly to Ko Samui
Ready to jet to Ko Samui on a budget? Check out these popular routes with surprisingly cheap fares (one-way prices):
Last-Minute Flights from United States to Ko Samui
Need to get to Ko Samui ASAP? Even if you're booking a flight on short notice, there are often last-minute deals available:
Next 2 weeks deals
Last Minute Flight Deals!
Find great deals to Ko Samui starting from $2324, departing over the next two weeks.
⌛ Last-Minute
Sioux Falls - USM
A great last-minute steal for a cross-country flight.
Found 1 week ago
$2324
round-trip
Facts About Flights from United States to Ko Samui
To help you plan your journey, here are some quick Ko Samui flight facts and tips.
Ko Samui city airports
Ko Samui is served by one primary airport: Samui Airport (USM). This privately-owned airport is known for its unique, open-air design, featuring tropical gardens and wooden structures that blend seamlessly with the island's natural environment. While not a large airport, USM offers flights to both domestic and international destinations, primarily connecting to Bangkok and other major cities in Southeast Asia. Due to its private ownership, flights to and from Samui Airport may be more limited and potentially pricier compared to airports served by multiple airlines. However, its convenience and proximity to popular resorts make it a desirable gateway to this beautiful island.
Pro tip: search “Ko Samui (Any)” to see fares to all Ko Samui airports – sometimes one is cheaper than the others on your dates.
Insights for flights to Ko Samui
Cheapest airport
Surat Thani (URT)
Looking for a savvy way to visit Ko Samui? Consider flying into Surat Thani Airport (URT), a bustling hub on the mainland. From there, you can hop on a ferry for a scenic journey to the island, often saving you some serious cash compared to flying directly to Ko Samui! It's a win-win: a lighter travel budget and an extra mini-adventure.
Nonstop vs. 1-stop
20+ cities
Ko Samui Airport (USM) is a secondary airport, not a major hub, but it still offers connections to over 20 cities! Popular routes include Bangkok, Phuket, and Singapore, making it a convenient gateway to island paradise.
Number of airlines
10+ airlines
Ko Samui is served by more than 10 airlines, including both full-service carriers like Bangkok Airways and Thai Airways, and low-cost options such as Nok Air and Thai Lion Air.
USM Airport Deal Stats
Current most discounted routes
Avg. most discounted routes (last 3 months)
USM airport insights
Best days to catch a deal
Tue, Thur
Based on the data, Wednesday is the best day to find a deal for Samui airport. Tuesday has the highest count but it's better to go with Wednesday if you are looking for the cheapest flight deals.
Avg. deal survival time
16.3 hours
Deals for Samui Airport typically last around 16.3 hours. This means you should book quickly when you find a good fare.
Rare deal frequency
10 deals
In the past month, we've uncovered 10 rare flight deals for Samui Airport. These exceptional offers, scoring 90+ on our AI Deal Score, typically include mistake fares, special promotions, or ultra-discounts.
Average price drop
-66%
Based on historical data, flights to Samui Airport (USM) typically see an average price drop of 66.2%. This means you have a good chance of finding a significantly cheaper flight if you monitor prices and book at the right time.
Next 4 weeks: deal forecast
Samui Flight Forecast - December 2025
Based on current trends, flights to Samui in January 2026 are expected to remain stable with a slight increase due to post-holiday travel. Monitor prices closely for potential flash sales, but significant drops are unlikely.
Top 5 biggest price drops (last 3 months)
Found on December 22
Darwin - USM
$5,375 → $281
95%
Found on December 23
Nha Trang - USM
$1,563 → $150
90%
Found on December 25
Perth - USM
$920 → $172
81%
Found on December 25
Gold Coast - USM
$1,625 → $305
81%
Found on December 20
Atlanta - USM
$3,125 → $642
79%
Check these nearby airports too
Looking for more options? These airports near USM sometimes drop rare deals too:
Ranong (UNN)
~7 rare deals/month
Surat Thani International (URT)
~14 rare deals/month
Samui (USM)
~11 rare deals/month
If you’re flexible with departure cities, it’s worth keeping an eye on nearby airports — especially UNN and URT for long-haul deal surprises.
When Is the Best Time to Fly from United States to Ko Samui
Timing is everything when hunting for cheap flights. Here are data-backed insights on the best times to fly to Ko Samui:
Cheapest month
November
Cheapest month
The cheapest month to fly to Ko Samui is November! This hidden gem offers a sweet escape before the holiday rush. With fewer tourists and delightful weather, November provides an ideal blend of affordability and enjoyable experiences.
Best day to book
Tuesday
Best day to book
The best day to book a flight to Ko Samui is Tuesday. Airlines often release deals at the start of the week to fill up the remaining seats. Keep an eye on those mid-week discounts and snag the perfect flight without breaking the bank.
Cheapest days to fly
Wednesday
Cheapest days to fly
The cheapest days to fly to Ko Samui are typically on Wednesday. Flying mid-week can save you some serious cash. Most people prefer to travel on weekends, so airlines offer lower prices on weekdays to entice travelers.
Advance booking sweet spot
2 months
Advance booking sweet spot
The advance booking sweet spot for flights to Ko Samui is around 2 months before your trip. Booking ahead often unlocks better deals, ensuring you get your preferred flights and seats. So, plan and book in advance to maximize your savings and get that dreamy Ko Samui vacation locked in.
Seasonal considerations
Ko Samui Airports & Ground Transportation
One big question for travelers is which Ko Samui airport to fly into. Here’s a quick guide to Ko Samui’s airports and how to get to the city from each:
Samui Airport (USM)
Welcome to Samui Airport, your gateway to paradise! This charming airport is privately owned and exudes a relaxed, tropical vibe from the moment you arrive. Forget long walks through endless terminals; here, open-air pavilions and lush gardens create a unique and calming pre-flight experience. Conveniently located near the major tourist areas, it provides easy access to the stunning beaches and vibrant towns of Ko Samui. Getting to your hotel is a breeze with readily available taxis, pre-booked minivans, and rental car services right outside the terminal. Enjoy the island vibes as soon as you step off the plane!
Tip: Arrive early to soak in the unique atmosphere and enjoy a leisurely coffee at one of the airport's cafes.
Other airports
While Ko Samui has its own airport, consider flying into nearby cities like Surat Thani or Nakhon Si Thammarat for potentially cheaper flights! From Surat Thani Airport, you can hop on a bus and then a ferry to reach Ko Samui, offering a scenic (and budget-friendly) journey, while from Nakhon Si Thammarat Airport, a taxi and ferry combo is your best bet. Remember to factor in the extra travel time (and potential sea sickness!) when choosing these alternatives.
What to Do in Ko Samui
Ko Samui isn’t just about getting there – it’s about enjoying the country once you arrive! Here are some top things to do in Ko Samui, organized by interest:
Sightseeing & landmarks
Get ready to explore Ko Samui's iconic Big Buddha, a shimmering golden statue that's a must-see! Then, wander through the Secret Buddha Garden, a whimsical collection of statues hidden in the island's lush interior. Don't forget to check out the unique rock formations at Hin Ta & Hin Yai.
Arts & culture
Delve into Ko Samui's cultural heart by visiting Wat Plai Laem, a vibrant temple showcasing elaborate Thai and Chinese-style architecture. Experience the local traditions at a traditional Thai dance performance. You might even find a local artisan crafting intricate souvenirs!
Food & nightlife
Prepare your taste buds for a culinary adventure! From the bustling night markets of Chaweng to the beachside restaurants in Bophut, you'll find a delightful mix of Thai flavors and fresh seafood. As the sun sets, Ko Samui comes alive with beach bars, clubs, and fire shows for an unforgettable night out.
Shopping & fashion
Shopaholics, rejoice! Ko Samui offers a diverse shopping scene, from the modern Central Festival Samui mall to the charming Fisherman’s Village Walking Street. Discover unique clothing, handcrafted jewelry, and souvenirs to remember your island escape. Be sure to bargain for the best deals!
Nearby getaways
Ready for a little island hopping? Take a short boat trip to Koh Phangan, famous for its Full Moon Party and pristine beaches. Or, escape to the tranquility of Koh Tao, a diver's paradise with crystal-clear waters and vibrant coral reefs. These nearby islands offer a change of pace and even more stunning scenery.
Events in Ko Samui This Month
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Celebrate New Year's Eve on Wednesday, December 31, 2025, with doors opening at 8:00 PM. Experience the new year with electrifying French energy and precise underground vibes in Ko Samui. Get ready for a night of unforgettable music and celebration as we welcome the new year in style.
Ko Samui Weather
Weather in Ko Samui
Thu, Dec 25
35%
31° 25°
35%
Fri, Dec 26
Frequently Asked Questions About Flights to Ko Samui
Pro Tips for Finding Cheap Flights to Ko Samui
Finally, to wrap up, here’s a cheat sheet of pro tips that experienced travelers use to save on Ko Samui flights:
Be Flexible With Your Dates: Flying on weekdays or during the off-season can save you a bundle. Think of it as outsmarting the crowds!
Set Up Price Alerts: Use RatePunk to track flight prices! You'll be the first to know when prices drop, snagging that dream deal.
