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Cheap Flights from Seattle to Koh Samui, TH, Thailand - SEA to USM Last modified: Jul 25, 2016 1:44 AM

How Much Does it Cost to Fly from Seattle to Koh Samui (SEA to USM)?

We have collected flight cost data from across the web for travel from Seattle to Koh Samui, and have found the average flight price for this trip to be $4,285.

When Can I Buy the Cheapest Flight from Seattle to Koh Samui (SEA to USM)?

Airlines can adjust prices for plane tickets from Seattle to Koh Samui based on the day and time that you decide to book your flight. We have collected data from all airlines, and have discovered that the best days to book flights are Tuesdays, Wednesdays, and Saturdays. Read our article to find more information about the best time to buy airline tickets.

Airports for Your Route

These pages contain information about the major airports in Seattle and Koh Samui, so you can feel comfortable knowing how to get around whether you are about to take off or you just landed.

Cheap International Flights from Seattle - SEA

FlightsAirlineLowest Price
Seattle to Bangkok American, Alaska, JetBlue, Hawaiian, Bangkok, Thai, United $854
Seattle to Phuket American, Alaska, Hawaiian, Bangkok, Thai, United $1,018
Seattle to Singapore American, Alaska, JetBlue, Hawaiian, Singapore, United $834
Seattle to Ho Chi Minh City American, Alaska, Hawaiian, United, Vietnam $549
Seattle to Kuala Lumpur American, Alaska, Hawaiian, Malaysia, United $724
Seattle to Hong Kong American, Alaska, JetBlue, Cathay, Hawaiian, Hong Kong, United $671
Seattle to Phnom Penh American, Alaska, Hawaiian, United $871
Seattle to Manila American, Alaska, Hawaiian, Philippine, United $636
Seattle to Delhi Jet Airways, American, Air India, Alaska, United $901
Seattle to Tokyo American, Alaska, JetBlue, Hawaiian, JAL, All Nippon, United, Island Air $858
Seattle to Beijing Sichuan, American, Alaska, Air China, China Southern, Hawaiian, Hainan, Xiamen, China Eastern, Shandong, United $557
Seattle to Shanghai Sichuan, American, Alaska, Air China, China Southern, Hawaiian, Hainan, Xiamen, China Eastern, Shandong, United $563

Cheap International Flights to Koh Samui - USM

FlightsAirlineLowest Price
Vancouver to Koh Samui Air Canada, Bangkok, Thai $1,488
Vancouver to Bangkok Air Canada, Bangkok, Thai, Air Transat, WestJet $674
Portland to Bangkok American, Alaska, JetBlue, Hawaiian, Thai, United $870
Vancouver to Phuket Air Canada, Bangkok, Thai $893
Vancouver to Kuala Lumpur Air Canada, Malaysia $774
Vancouver to Singapore Air Canada, Singapore $777
Portland to Phuket American, Alaska, Hawaiian, Bangkok, Thai, United $1,357
Vancouver to Shanghai Sichuan, Air Canada, Air China, China Southern, Hainan, Xiamen, China Eastern, Air Transat, WestJet $464
Victoria to Bangkok Air Canada, Thai $787
Vancouver to Krabi Air Canada, Bangkok, Thai $975
Vancouver to Ho Chi Minh City Air Canada, Vietnam $637
Vancouver to Hong Kong Air Canada, Cathay, Hong Kong, Dragonair, WestJet $535
Portland to Ho Chi Minh City American, Alaska, Hawaiian, United, Vietnam $702
Vancouver to Beijing Sichuan, Air Canada, Air China, China Southern, Hainan, Xiamen, China Eastern, Shandong, Air Transat, WestJet $464
Portland to Singapore American, Alaska, JetBlue, Hawaiian, Singapore, United $881
Vancouver to Phnom Penh Air Canada $892
Vancouver to Penang Air Canada, Malaysia $863
Vancouver to Jakarta Air Canada, Garuda $768
Cheap Flights from Seattle to Koh Samui, TH, Airfare Search for SEA to USM, Airline One-Way and Roundtrip Schedules