$548 Cheap Flights from Dallas (DFW) to Samui Intl. Airport (USM)

View $548 flight on Wed, Oct 22, 2025Opens in a new window

Popular airlines from Dallas-Fort Worth Intl. Airport (DFW) to Samui Intl. Airport (USM)

Cheap Flights from Dallas to Samui Intl. Airport (DFW-USM)

Prices were available within the past 7 days and start at $548 for one-way flights and $994 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Apr 21 - Tue, Apr 28
DFW
Dallas
USM
Koh Samui
$994 Roundtrip, found 4 days ago
$994
Roundtrip
found 4 days ago
Select United flight, departing Tue, Apr 21 from Dallas to Koh Samui, returning Tue, Apr 28, priced at $994 found 4 days ago
EVA Airways
Mon, Mar 2 - Wed, Mar 18
DFW
Dallas
USM
Koh Samui
$1,003 Roundtrip, found 3 days ago
$1,003
Roundtrip
found 3 days ago
Select EVA Airways flight, departing Mon, Mar 2 from Dallas to Koh Samui, returning Wed, Mar 18, priced at $1,003 found 3 days ago
EVA Airways
Tue, Apr 21 - Tue, Apr 28
DFW
Dallas
USM
Koh Samui
$1,013 Roundtrip, found 4 days ago
$1,013
Roundtrip
found 4 days ago
Select EVA Airways flight, departing Tue, Apr 21 from Dallas to Koh Samui, returning Tue, Apr 28, priced at $1,013 found 4 days ago
EVA Airways
Mon, Mar 2 - Tue, Mar 17
DFW
Dallas
USM
Koh Samui
$1,023 Roundtrip, found 3 days ago
$1,023
Roundtrip
found 3 days ago
Select EVA Airways flight, departing Mon, Mar 2 from Dallas to Koh Samui, returning Tue, Mar 17, priced at $1,023 found 3 days ago
EVA Airways
Tue, Jan 27 - Tue, Feb 17
DFW
Dallas
USM
Koh Samui
$1,038 Roundtrip, found 5 days ago
$1,038
Roundtrip
found 5 days ago
Select EVA Airways flight, departing Tue, Jan 27 from Dallas to Koh Samui, returning Tue, Feb 17, priced at $1,038 found 5 days ago
EVA Airways
Sun, Apr 5 - Tue, Apr 14
DFW
Dallas
USM
Koh Samui
$1,043 Roundtrip, found 1 day ago
$1,043
Roundtrip
found 1 day ago
Select EVA Airways flight, departing Sun, Apr 5 from Dallas to Koh Samui, returning Tue, Apr 14, priced at $1,043 found 1 day ago
EVA Airways
Fri, Oct 17 - Tue, Oct 21
DFW
Dallas
USM
Koh Samui
$1,054 Roundtrip, found 7 hours ago
$1,054
Roundtrip
found 7 hours ago
Select EVA Airways flight, departing Fri, Oct 17 from Dallas to Koh Samui, returning Tue, Oct 21, priced at $1,054 found 7 hours ago
Turkish Airlines
Mon, Nov 10 - Tue, Nov 25
DFW
Dallas
USM
Koh Samui
$1,294 Roundtrip, found 5 days ago
$1,294
Roundtrip
found 5 days ago
Select Turkish Airlines flight, departing Mon, Nov 10 from Dallas to Koh Samui, returning Tue, Nov 25, priced at $1,294 found 5 days ago
Cathay Pacific
Mon, Oct 6 - Wed, Oct 15
DFW
Dallas
USM
Koh Samui
$1,363 Roundtrip, found 4 hours ago
$1,363
Roundtrip
found 4 hours ago
Select Cathay Pacific flight, departing Mon, Oct 6 from Dallas to Koh Samui, returning Wed, Oct 15, priced at $1,363 found 4 hours ago
Qatar Airways
Mon, Nov 17 - Fri, Nov 21
DFW
Dallas
USM
Koh Samui
$1,372 Roundtrip, found 2 days ago
$1,372
Roundtrip
found 2 days ago
Select Qatar Airways flight, departing Mon, Nov 17 from Dallas to Koh Samui, returning Fri, Nov 21, priced at $1,372 found 2 days ago

Alternative airports near Koh Samui

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Samui Intl. Airport USM. Cheapest and Closest option available. Average driving time to city center is 31 minutes. Flights from $1,333
USM
Samui Intl. Airport
CheapestClosest
Average driving time to city center31 min
Flights from $1,333
Flights from Dallas (DFW) to Samui Intl. Airport (USM)
Origin airport
Dallas-Fort Worth Intl.
Destination airport
Samui Intl. Airport
Airlines serving
Air France, British Airways, Cathay Pacific, EVA Airways, Finnair, Japan Airlines, KLM, Lufthansa, Qatar Airways, Turkish Airlines
Roundtrip price
$994
Distance
9294 mi

Dallas to Samui Intl. Airport Flights

The cheapest times to fly from Dallas to Samui Intl. Airport

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Dallas to Samui Intl. Airport are during the month of April. You can find some of the cheapest flights from Dallas to Samui Intl. Airport with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Dallas to Samui Intl. Airport

Sunday is one of the best days to book for cheap flights from Dallas to Samui Intl. Airport: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Dallas to Samui Intl. Airport

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Dallas to Samui Intl. Airport in 2025. You can also book with separate airlines for your outbound and return journeys, from $548 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Dallas to Samui Intl. Airport flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Dallas to Samui Intl. Airport airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Dallas-Fort Worth Intl. Airport (DFW) to Ko Samui Airport (USM) cost?
Snag a cheap one-way flight from $548 or cheap return flight from $994 from Dallas-Fort Worth Intl. Airport (DFW) to Ko Samui Airport (USM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Dallas-Fort Worth Intl. Airport (DFW) to Ko Samui Airport (USM)?
The cheapest month to fly from DFW to USM is April, when demand is low. Off-peak months are generally when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Dallas-Fort Worth Intl. Airport (DFW) to Ko Samui Airport (USM)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest DFW to USM flight.
How many flights per day from Dallas-Fort Worth Intl. Airport (DFW) to Ko Samui Airport (USM)?
You'll need to hop on a flight with a layover if you're traveling from Dallas-Fort Worth Intl. Airport (DFW) to Ko Samui Airport (USM). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from DFW to USM?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary depending on various factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Dallas-Fort Worth Intl. Airport (DFW) to Ko Samui Airport (USM)?
Choose a flight from Dallas-Fort Worth Intl. Airport (DFW) to Ko Samui Airport (USM) that takes off before 3 PM to reduce the risk of cancellations and delays. Departures after this hour have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Dallas-Fort Worth Intl. Airport (DFW) to Ko Samui Airport (USM) last-minute?
Last-minute bookings from DFW to USM are typically more expensive. To secure the lowest prices, start searching for flights as early as possible. That being said, if your travel plans are flexible, you may find a cheap fare right before you leave.
Is it cheaper to book a DFW to USM flight and hotel package?
Compared with arranging flights and hotels separately, booking a DFW to USM flight and hotel package with Expedia could result in significant savings. Better still, having everything in one place will take the hassle out of travel planning. Simply secure your flights and choose from our wide range of hotels, then personalize your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from Dallas-Fort Worth Intl. Airport (DFW) to Ko Samui Airport (USM)?
Typically, you're able to cancel or reschedule your DFW to USM flight. However, additional fees may apply, especially if your booking was made over 24 hours ago. Check your itinerary for the airline's rules and fees on flight changes, or if you need more details, head to our Customer Service portal.

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*Available to One Key members.