$677 Cheap EVA Airways flights Houston (IAH) to Samui Intl. Airport (USM)

View $677 flight on Thu, Sep 4, 2025Opens in a new window

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$677 Cheap EVA Airways flights Houston (IAH) to Samui Intl. Airport (USM)

Prices were available within the past 7 days and start at $677 for one-way flights and $1,183 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

EVA Airways
Mon, Sep 1 - Mon, Sep 22
IAH
Houston
USM
Koh Samui
$1,183 Roundtrip, found 3 days ago
$1,183
Roundtrip
found 3 days ago
Select EVA Airways flight, departing Mon, Sep 1 from Houston to Koh Samui, returning Mon, Sep 22, priced at $1,183 found 3 days ago
Flights from Houston (IAH) to Samui Intl. Airport (USM)
Origin airport
George Bush Intercontinental
Destination airport
Samui Intl. Airport
Airlines serving
Air France, British Airways, Cathay Pacific, EVA Airways, KLM, Qatar Airways, Singapore Airlines, Turkish Airlines
Popular airline
EVA Airways
Distance
9519 mi

Frequently asked questions

How much is an EVA Air flight from George Bush Intercontinental Airport (IAH) to Ko Samui Airport (USM)?
You'll discover affordable round-trip EVA Air flights from $1,183 from IAH to USM by organizing your results from "Price (lowest to highest)" on Expedia. Or search for deals from $677 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from IAH to USM with EVA Air?
EVA Air flights to Koh Samui are often more affordable in the off-peak months of October and September. Whether you're searching for a one-way or a return ticket, you could land a better deal then.
What is the cheapest time to book flights from George Bush Intercontinental Airport (IAH) to Ko Samui Airport (USM) with EVA Air?
To discover cheap flights from IAH to USM with EVA Air, begin searching about one month before your intended departure. You can save 17% when you book your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Want another tip? Booking on Sunday offers average savings of 17% compared to Friday (the most expensive day).**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does EVA Air fly nonstop from George Bush Intercontinental Airport (IAH) to Ko Samui Airport (USM)?
Use the "Nonstop" filter when browsing for direct EVA Air flights from IAH to USM. You'll also be able to compare other carriers offering the same nonstop route.
What is the earliest EVA Air flight from IAH to USM?
Browse EVA Air's earliest flights from IAH to USM by checking our "Morning" and "Early Morning" filters. Not only will you arrive sooner, early departures also experience 20% fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does EVA Air fly into in Koh Samui?
EVA Air flights from George Bush Intercontinental Airport (IAH) to Koh Samui arrive at Ko Samui Airport (USM). This is the main gateway to this destination.
What kind of luggage can I take on an EVA Air flight from George Bush Intercontinental Airport (IAH) to Ko Samui Airport (USM)?
On a standard economy flight with EVA Air from IAH to USM, you can bring 1 checked-in bag up to 44 lb with dimensions no larger than 62 inches in total. For hand luggage, you can have 1 cabin bag weighing up to 15 lb and measuring no more than 45 inches. Size and weight allowances can differ depending on the airfare type and cabin class you're in. To make sure you're not hit with extra charges at the airport, check your EVA Air booking or look up the airline's website before you begin packing.
Why fly with EVA Air from IAH to USM?
With top-tier customer service and an excellent in-flight experience, EVA Air is the leading choice for many travelers flying from IAH to USM. Also, if you're an EVA Air Infinity MileageLands and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be spent on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my EVA Air flight from George Bush Intercontinental Airport (IAH) to Ko Samui Airport (USM)?
Depending on your fare type, a fee typically applies if you change or cancel your booking more than 24 hours after it's confirmed. To find tickets with more flexibility, select our "Changes included" or "No cancel fee" filter when you search for flights. For additional information on changing or canceling your reservation, go to "Trips," select your flight and click on "Manage Booking."

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*Available to One Key members.