$594 Cheap Flights to Ko Samui
One-way
Departing from
United States
Going to
Ko Samui, Thailand
Ko Samui (USM)
Thailand • April, 2026
74% AI deal score
$1,175 $771
Ko Samui (USM)
Thailand • October, 2026
51% AI deal score
$698
Ko Samui (USM)
Thailand • November, 2025
39% AI deal score
$594
Ko Samui (USM)
Thailand • April, 2026
38% AI deal score
$4,613
Ko Samui (USM)
Thailand • February, 2026
36% AI deal score
$4,513
This is the lowest one-way flight price found by RatePunk users in the last 24 hours for a flight departing from Ko Samui. Fares are subject to change and may not be available for all dates. (Data last updated 11/6/2025).
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Top Cheap Flight Deals to Ko Samui
Recent round-trip flight deals to Ko Samui
Sun, Apr 26 - Thu, Apr 30
Cheapest
Los Angeles (LAX) - Ko Samui (USM)
Ozark Air Lines airlines • 2 stops • Seoul (ICN), Bangkok (BKK)
Ko Samui (USM) - Los Angeles (LAX)
Bangkok Airways airlines • 2 stops • Bangkok (BKK), Seoul (ICN)
$1,175
$922
-$253
22%
Wed, Jan 21 - Mon, Jan 26
Houston (IAH) - Ko Samui (USM)
Spirit Airlines airlines • 3 stops • Los Angeles (LAX), Guangzhou (CAN), Bangkok (BKK)
Ko Samui (USM) - Houston (IAH)
Bangkok Airways airlines • 3 stops • Bangkok (BKK), Guangzhou (CAN), Los Angeles (LAX)
$1,800
$1,067
-$733
41%
Wed, Jan 21 - Tue, Jan 27
Houston (IAH) - Ko Samui (USM)
Spirit Airlines airlines • 3 stops • Los Angeles (LAX), Guangzhou (CAN), Bangkok (BKK)
Ko Samui (USM) - Houston (IAH)
Bangkok Airways airlines • 3 stops • Bangkok (BKK), Singapore (SIN), Los Angeles (LAX)
$1,800
$1,067
-$733
41%
Thu, Mar 26 - Tue, Mar 31
New York (JFK) - Ko Samui (USM)
Etihad Airways airlines • 2 stops • Abu Dhabi (AUH), Bangkok (BKK)
Ko Samui (USM) - New York (JFK)
Bangkok Airways airlines • 2 stops • Bangkok (BKK), Manila (MNL)
$1,550
$1,061
-$489
32%
Wed, Jan 21 - Mon, Jan 26
Houston (IAH) - Ko Samui (USM)
Spirit Airlines airlines • 3 stops • Los Angeles (LAX), Guangzhou (CAN), Bangkok (BKK)
Ko Samui (USM) - Houston (IAH)
Bangkok Airways airlines • 3 stops • Bangkok (BKK), Guangzhou (CAN), Los Angeles (LAX)
$1,800
$1,087
-$713
40%
Sun, Nov 16 - Sun, Nov 23
Los Angeles (LAX) - Ko Samui (USM)
Singapore Airlines Cargo airlines • 1 stop • Singapore (SIN)
Ko Samui (USM) - Los Angeles (LAX)
Singapore Airlines Cargo airlines • 1 stop • Singapore (SIN)
$1,079
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 Getaways
Find great deals to Ko Samui, Thailand starting from $1601, departing over the next two weeks.
⌛ Last-Minute
Houston - USM
A great last-minute steal for a cross-country flight.
Found 1 week ago
$1601
round-trip
⌛ Last-Minute
Houston - USM
A great last-minute steal for a cross-country flight.
Found 1 week ago
$1781
round-trip
Tip: If you don’t see your city listed, try a quick search anyway – new deals appear daily. Airlines sometimes slash prices a few days before departure to avoid empty seats.
Keep in mind, while last-minute fares can be lucky finds, booking about a month in advance generally yields cheaper flights on average. If you have flexibility, try to plan ahead. But if an unexpected trip to Ko Samui pops up, check our site – you might get lucky with a sudden fare drop.
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.
Typical price range (round-trip)
$500 - $1200
Generally, flights to Ko Samui range from $500 to $1200. Prices tend to increase during peak tourist seasons like December and August due to higher demand. Keep an eye out for deals during the shoulder seasons (April-June and September-November) for better rates!
Flight frequency
100+ flights
Flights to Ko Samui are generally available throughout the week, but the frequency can increase during peak tourist seasons like December and August. You might find more flight options during the day compared to late at night.
USM Airport Deal Stats
Current most discounted routes
Avg. most discounted routes (last 3 months)
USM airport insights
Best days to catch a deal
Sun, Sat
Based on the data provided, Wednesday is the best day to find a deal for Samui airport. Thursday and Friday also offer better chances of finding deals compared to the other days.
Avg. deal survival time
11.4 hours
Deals for airport Samui typically last around 11.4 hours. This means that you should book quickly if you find a deal that you like!
Rare deal frequency
11 deals
In the past month, we discovered 11 rare deals for flights to Samui Airport. These exceptional finds, identified by an AI Deal Score of 90 or higher, typically include mistake fares, special promotions, or ultra-discounts.
Average price drop
-57%
Travelers can save big on flights to Samui, with an average price drop of 57.4%. This means you have a high chance of snagging a great deal on your next trip to this beautiful destination.
Next 4 weeks: deal forecast
Samui Forecast for Next Month
Based on current trends, flight prices to Samui are expected to remain stable next month. There are no significant price drops or increases anticipated for flights to Samui.
Top 5 biggest price drops (last 3 months)
Found on November 3
Darwin - USM
$10,750 → $1,554
86%
Found on October 31
Gold Coast - USM
$1,625 → $276
83%
Found on November 3
Perth - USM
$920 → $168
82%
Found on October 30
Sydney - USM
$905 → $206
77%
Found on October 30
Vienna - USM
$1,650 → $385
77%
Check these nearby airports too
Looking for more options? These airports near USM sometimes drop rare deals too:
Nakhon Si Thammarat (NST)
~10 rare deals/month
Ranong (UNN)
~3 rare deals/month
Surat Thani International (URT)
~12 rare deals/month
If you’re flexible with departure cities, it’s worth keeping an eye on nearby airports — especially NST and UNN 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
Distinct
Seasonal considerations
Ko Samui definitely has distinct seasonal considerations for booking flights! The dry season (December to April) is the peak, meaning higher prices. The shoulder months (May, June, September, October) offer a sweet spot with good weather and fewer crowds, while the monsoon season (July-August, November) sees lower prices but wetter conditions.
TL;DR: Want the lowdown on snagging the best Ko Samui flight deals? November is your cheapest month, and Tuesdays are prime for booking. Aim to fly on a Wednesday to save even more, and book about 2 months in advance. Keep in mind the seasonal changes, but this island is fantastic year-round!
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.
Airport transfers
Getting around Ko Samui from its airport is a breeze with options galore! Taxis and private car services offer door-to-door convenience, while shared minivans provide a more budget-conscious choice. For ultimate freedom, consider renting a car or scooter to explore the island at your own pace.
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.
No matter your interest – be it art, food, nightlife, or nature – Ko Samui has something for everyone. And the best part? Many events and attractions refresh throughout the year, so there’s always something new to experience each visit.
Ko Samui Weather
Weather in Ko Samui
Mon, Nov 3
45%
30° 26°
45%
Tue, Nov 4
35%
30° 26°
35%
Wed, Nov 5
35%
30° 26°
35%
Thu, Nov 6
45%
30° 26°
45%
Fri, Nov 7
25%
30° 26°
25%
Sat, Nov 8
25%
31° 27°
25%
Sun, Nov 9
35%
31° 26°
35%
Here’s a quick look at the weather you can expect, plus this week’s forecast:
Seasons: Ko Samui experiences a tropical monsoon climate with distinct wet and dry seasons. The dry season typically runs from January to April, featuring sunny skies and temperatures ranging from 24°C to 32°C (75°F to 90°F). The wet season, from May to December, brings increased rainfall and humidity, with temperatures remaining warm, between 25°C and 31°C (77°F to 88°F).
Rain: Ko Samui experiences rainfall primarily during the wet season, from May to December, with peak rainfall in October and November. While rain is frequent, it's often in the form of short, intense showers, and travel is still possible, though some outdoor activities may be affected.
This week's forecast: This week in Ko Samui (November 3-9, 2025) will see consistent temperatures, with highs around 29.7°C to 30.6°C (85.5°F to 87.1°F) and lows between 25.6°C and 26.6°C (78.1°F to 79.9°F). There is a moderate chance of rain throughout the week, with some days featuring isolated thunderstorms.
(We update the weather forecast weekly so you know what to expect during your travel week. Always check a day or two before your flight for the most current conditions.)
Frequently Asked Questions About Flights to Ko Samui
(Have more questions?) Feel free to reach out or check our comprehensive Ko Samui travel guide. We’re here to help make your flight to Ko Samui (and the trip itself) as smooth as possible.
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.
Consider Nearby Airports: Sometimes flying into a smaller, nearby airport can significantly cut costs. A little extra travel time can mean big savings!
Book in Advance (But Not Too Early!): Aim to book a few months ahead for the sweet spot. Too early, and you might miss price drops; too late, and prices skyrocket.
Mix and Match Airlines: Don't be afraid to fly one airline to Ko Samui and another on the way back. This can unlock better prices than sticking with a single carrier.
Embrace Layovers: Non-direct flights with layovers are often cheaper. Think of it as a mini-adventure on your way to paradise, Ko Samui!
Clear Your Cookies (Seriously!): Airlines sometimes track your searches and raise prices accordingly. Clear your browser cookies or use incognito mode to see the real deals.
Check Budget Airlines: Budget airlines can offer incredibly low fares. Just be sure to factor in any extra costs for baggage or seat selection!
Use Reward Points and Miles: Loyalty programs can unlock serious discounts or even free flights. Cash in those points for a tropical getaway!
Consider Package Deals: Bundling your flight with a hotel or rental car can sometimes be cheaper than booking everything separately. It's like getting a surprise bonus for your trip!
By keeping these tips in mind, you’ll be well-equipped to find the cheapest flights to Ko Samui and make the most of your travel budget. After all, the more you save on your flight, the more you can spend on a Broadway show, a nice meal, or an extra tour in Ko Samui! 🎉✈️
