$482 Cheap Flights to Ko Samui
One-way
Departing from
United States
Going to
Ko Samui, Thailand
Ko Samui (USM)
Thailand • April, 2026
87% AI deal score
$1,550 $509
Ko Samui (USM)
Thailand • April, 2026
86% AI deal score
$1,175 $618
Top Cheap Flight Deals to Ko Samui
Recent round-trip flight deals to Ko Samui
Mon, Feb 2 - Mon, Feb 9
Cheapest
Seattle (SEA) - Ko Samui (USM)
Ozark Air Lines airlines • 2 stops • Seoul (ICN), Bangkok (BKK)
Ko Samui (USM) - Seattle (SEA)
Bangkok Airways airlines • 2 stops • Bangkok (BKK), Seoul (ICN)
$1,048
Mon, Dec 8 - Mon, Dec 15
San Francisco (SFO) - Ko Samui (USM)
Singapore Airlines Cargo airlines • 1 stop • Singapore (SIN)
Ko Samui (USM) - San Francisco (SFO)
Singapore Airlines Cargo airlines • 1 stop • Singapore (SIN)
$1,500
$1,272
-$228
15%
Fri, Jan 23 - Thu, Jan 29
Denver (DEN) - Ko Samui (USM)
Frontier Airlines airlines • 2 stops • Los Angeles (LAX), Singapore (SIN)
Ko Samui (USM) - Denver (DEN)
Transbrasil airlines • 2 stops • Singapore (SIN), Los Angeles (LAX)
$2,025
$1,346
-$679
34%
Wed, May 13 - Mon, May 18
Chicago (ORD) - Ko Samui (USM)
Etihad Airways airlines • 2 stops • Abu Dhabi (AUH), Bangkok (BKK)
Ko Samui (USM) - Chicago (ORD)
Bangkok Airways airlines • 2 stops • Bangkok (BKK), Taipei (TPE)
$1,368
Thu, May 7 - Tue, May 19
Minneapolis (MSP) - Ko Samui (USM)
Sun Country Airlines airlines • 3 stops • Seattle (SEA), Manila (MNL), Bangkok (BKK)
Ko Samui (USM) - Minneapolis (MSP)
Bangkok Airways airlines • 2 stops • Bangkok (BKK), Seoul (ICN)
$1,875
$1,429
-$446
24%
Sun, Feb 1 - Wed, Feb 11
Washington, D.C. (IAD) - Ko Samui (USM)
Etihad Airways airlines • 2 stops • Abu Dhabi (AUH), Bangkok (BKK)
Ko Samui (USM) - Washington, D.C. (IAD)
Bangkok Airways airlines • 2 stops • Bangkok (BKK), Abu Dhabi (AUH)
$1,470
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 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!
We found great last-minute flight deals to Ko Samui starting from $519, departing over the next two weeks.
⌛ Last-Minute
Los Angeles - USM
A great last-minute steal for a cross-country flight.
Found 3 days ago
$519
one-way
Facts About Flights 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
Sat, Sun
Based on the provided data, Friday is the best day to find cheap deals for Samui airport. Monday and Tuesday also appear to be good days to search for budget-friendly flights.
Avg. deal survival time
17.9 hours
Deals for Samui Airport typically last around 17.9 hours, so it's important to book quickly. This relatively short lifespan means you should monitor prices frequently and be ready to act fast when you find a suitable offer.
Rare deal frequency
12 deals
We found 12 rare deals for flights to/from Samui airport in the past month. These rare deals had an AI Deal Score of 90+ and usually consist of mistake fares, special promotions, or ultra-discounts.
Average price drop
-68%
The average price drop for flights to Samui Airport is 67.8%, indicating a significant potential for savings. Travelers looking to visit this destination could benefit from monitoring flight prices and booking when they drop to maximize their travel budget.
Next 4 weeks: deal forecast
Samui Weather Forecast and Price Trends (December 2025)
The weather in Samui next month is expected to be tropical with moderate rainfall. Prices are expected to remain stable with a slight increase due to the holiday season.
Top 5 biggest price drops (last 3 months)
Found on November 18
Jaipur - USM
$1,450 → $219
85%
Found on November 15
New York - USM
$2,950 → $483
84%
Found on November 17
Warsaw - USM
$2,775 → $508
82%
Found on November 16
Gold Coast - USM
$1,625 → $314
81%
Found on November 16
Perth - USM
$920 → $194
79%
Check these nearby airports too
Looking for more options? These airports near USM sometimes drop rare deals too:
Nakhon Si Thammarat (NST)
~14 rare deals/month
Sakon Nakhon (SNO)
~7 rare deals/month
Ranong (UNN)
~10 rare deals/month
Surat Thani International (URT)
~5 rare deals/month
If you’re flexible with departure cities, it’s worth keeping an eye on nearby airports — especially NST and SNO for long-haul deal surprises.
When Is the Best Time to Fly 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.
Ko Samui Weather
Weather in Ko Samui
Wed, Nov 19
85%
27° 26°
85%
Thu, Nov 20
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.
