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Thai Airways Flights to Koh Samui

Thai Airways Routes to Koh Samui

New York to Koh Samui

22 hr+ (2 Stops minimum)
A good deal is under $900 roundtrip
Book 3-6 months in advance as Koh Samui (USM) is a small airport served mainly by Bangkok Airways connections; routing through Bangkok (BKK) is the most reliable option. Aim for Tuesday or Wednesday departures to find lower fares.

Los Angeles to Koh Samui

20-24 hr (2 Stops typical, e.g. LAX → Bangkok BKK → USM)
A good deal is under $900 roundtrip
Book 3-5 months in advance for best fares, as Koh Samui is a popular winter-sun destination. Routing through Bangkok (BKK) with Thai Airways and onward Bangkok Airways connection is the most common itinerary.

Chicago to Koh Samui

20 hr 30 min (2 Stops typical)
A good deal is under $900 roundtrip
Book 3-6 months in advance for best fares. Routing through Bangkok (BKK) then connecting to USM on Bangkok Airways is the most common and often cheapest itinerary.

Miami to Koh Samui

22 hr (2+ Stops)
A good deal is under $900 roundtrip
Book 3-6 months in advance for best fares. Most itineraries connect through Bangkok (BKK) and then require a short hop to Koh Samui (USM) operated by Bangkok Airways, so factor in layover time when comparing options.

San Francisco to Koh Samui

22 hr - 30 hr+ (2+ Stops)
A good deal is under $900 roundtrip
Book 3-5 months in advance for best fares, as Koh Samui is a popular resort destination with limited direct connections. Routing through Bangkok (BKK) or Singapore (SIN) typically offers the most competitive fares and shortest layovers.

Boston to Koh Samui

22 hr 30 min (2+ Stops)
A good deal is under $900 roundtrip
Book 3-5 months in advance for best fares. Routing through Bangkok (BKK) or Singapore (SIN) typically offers the most competitive prices and reliable connections to Koh Samui.

Seattle to Koh Samui

22 hr 30 min (2+ Stops)
A good deal is under $900 roundtrip
Book 3-5 months in advance for best fares, as Koh Samui (USM) is a small regional airport with limited connections requiring multiple stops, keeping prices elevated. Routing through Bangkok (BKK/DMK) then connecting to USM via Bangkok Airways is the most common and often most affordable path.

Denver to Koh Samui

22 hr (2+ Stops)
A good deal is under $900 roundtrip
Book 3-6 months in advance and look for connections through Bangkok (BKK) or Seoul (ICN). Traveling mid-week and avoiding Thai holiday periods can save 15-20%.

Washington D.C. to Koh Samui

22 hr 30 min (2+ Stops)
A good deal is under $900 roundtrip
Book 3-6 months in advance for best fares. Routing through Bangkok (BKK) then connecting to Koh Samui on Bangkok Airways is the most common itinerary, so look for partner fares that bundle the final leg.

Dallas to Koh Samui

22 hr (2+ Stops)
A good deal is under $900 roundtrip
Book 3-6 months in advance for best fares. Routing through Bangkok (BKK) then connecting to USM via Bangkok Suvarnabhumi is the most common and cost-effective path.

Atlanta to Koh Samui

22 hr+ (2+ Stops)
A good deal is under $900 roundtrip
Book 3-6 months in advance for best fares. Most itineraries connect through Bangkok (BKK/DMK) and then take a short Bangkok Airways hop to Koh Samui (USM), so look for through-fares that bundle both legs.

Houston to Koh Samui

22 hr (2+ Stops)
A good deal is under $900 roundtrip
Book 3-6 months in advance and look for connections through Bangkok (BKK) or Hong Kong (HKG). Traveling mid-week and avoiding Thai holiday periods can save 15-25%.

Honolulu to Koh Samui

20 hr+ (2+ Stops)
A good deal is under $900 roundtrip
Book 3-6 months in advance as this multi-stop route has limited direct options. Connecting through Bangkok (BKK) or Seoul (ICN) typically yields the best fares and shortest layovers.

Las Vegas to Koh Samui

22 hr - 30 hr+ (2+ Stops)
A good deal is under $900 roundtrip
Book 3-5 months in advance as this multi-stop route has limited seat availability. Routing through Bangkok (BKK) then connecting to Koh Samui via Bangkok Airways is the most common and reliable itinerary.

London to Koh Samui

17 hr 30 min (1-2 Stops)
A good deal is under $700 roundtrip
Book 3-6 months in advance for best fares, especially for peak winter travel. Routing via Bangkok (BKK) with Thai Airways or via Gulf hubs with Emirates or Qatar often yields the best combination of price and convenience.

Paris to Koh Samui

18 hr 30 min (1 Stop, typical via Bangkok BKK)
A good deal is under $700 roundtrip
Book 3-5 months in advance for best fares. Most itineraries require a connection in Bangkok (BKK/DMK) before the short hop to Koh Samui on Bangkok Airways, so allow at least 2-3 hours for the connection.

Toronto to Koh Samui

20 hr 30 min (2 Stops)
A good deal is under $900 roundtrip
Book 3-6 months in advance for best fares. Routing through Bangkok (BKK) then connecting to USM via Bangkok Airways is the most common and often cheapest option.

Sydney to Koh Samui

11 hr 30 min (1 Stop)
A good deal is under $600 roundtrip
Book 2-4 months in advance for best fares, as Koh Samui is a popular resort destination. Connecting through Bangkok (BKK) or Singapore (SIN) typically offers the most options and competitive pricing.

Singapore to Koh Samui

3 hr 30 min (1 Stop, typically via Bangkok BKK/DMK)
A good deal is under $150 roundtrip
Bangkok Airways dominates this route with a near-monopoly on the USM leg, so fares rarely drop dramatically. Book at least 4–6 weeks ahead and consider flying into Bangkok first on a budget carrier to save money.

Amsterdam to Koh Samui

16 hr 30 min (2 Stops)
A good deal is under $700 roundtrip
Book 2-4 months in advance for best fares. Routing through Bangkok (BKK) with a connection to USM via Bangkok Airways is the most common and reliable option.

Frankfurt to Koh Samui

18 hr 30 min (2 Stops)
A good deal is under $700 roundtrip
Book 2-4 months in advance for best fares. Routing through Bangkok (BKK) with Thai Airways and onward Bangkok Airways connection to USM is the most reliable option.

Dublin to Koh Samui

20 hr+ (2 Stops)
A good deal is under $900 roundtrip
Book 3-6 months in advance for best fares. Routing through Bangkok (BKK) or a Gulf hub typically offers the most competitive prices and convenient connections.

Mumbai to Koh Samui

10 hr 30 min (1 Stop)
A good deal is under $500 roundtrip
Book 2-4 months in advance for best fares, as Koh Samui is a hub-dependent destination served primarily through Bangkok (BKK/DMK). Connecting via Bangkok Suvarnabhumi on Bangkok Airways typically offers the most reliable onward service to USM.

Koh Samui Quick Facts

Best Time to Visit
January to April
Currency
Thai Baht (฿)
Airport Transit
Koh Samui Airport (USM) is located on the island itself; taxis and songthaews (shared minivans) take approximately 15 to 30 minutes to most resorts

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Other Airlines Flying to Koh Samui

EVA AirCathay PacificBangkok AirwaysEmiratesSingapore AirlinesKorean AirJapan AirlinesQatar AirwaysAir France (codeshare via BKK)Bangkok Airways (via BKK or DMK)Thai Airways (via BKK)Emirates (via DXB-BKK codeshare)KLMLufthansaIndiGo
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