$819 Cheap Flights from Pittsburgh (PIT) to Samui Intl. Airport (USM)

View $819 flight on Thu, Jan 15, 2026Opens in a new window

Popular airlines from Pittsburgh Intl. Airport (PIT) to Samui Intl. Airport (USM)

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Cheap Flights from Pittsburgh to Samui Intl. Airport (PIT-USM)

Prices were available within the past 7 days and start at $819 for one-way flights and $1,440 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Jan 13 - Mon, Jan 26
PIT
Pittsburgh
USM
Koh Samui
$1,440 Roundtrip, found 3 days ago
$1,440
Roundtrip
found 3 days ago
Select United flight, departing Tue, Jan 13 from Pittsburgh to Koh Samui, returning Mon, Jan 26, priced at $1,440 found 3 days ago
United
Thu, Jan 15 - Mon, Jan 26
PIT
Pittsburgh
USM
Koh Samui
$1,456 Roundtrip, found 3 days ago
$1,456
Roundtrip
found 3 days ago
Select United flight, departing Thu, Jan 15 from Pittsburgh to Koh Samui, returning Mon, Jan 26, priced at $1,456 found 3 days ago
United
Thu, Jan 15 - Thu, Jan 29
PIT
Pittsburgh
USM
Koh Samui
$1,469 Roundtrip, found 3 days ago
$1,469
Roundtrip
found 3 days ago
Select United flight, departing Thu, Jan 15 from Pittsburgh to Koh Samui, returning Thu, Jan 29, priced at $1,469 found 3 days ago
United
Sun, Jan 18 - Mon, Jan 26
PIT
Pittsburgh
USM
Koh Samui
$1,471 Roundtrip, found 3 days ago
$1,471
Roundtrip
found 3 days ago
Select United flight, departing Sun, Jan 18 from Pittsburgh to Koh Samui, returning Mon, Jan 26, priced at $1,471 found 3 days ago
United
Thu, Jan 15 - Thu, Jan 29
PIT
Pittsburgh
USM
Koh Samui
$1,477 Roundtrip, found 3 days ago
$1,477
Roundtrip
found 3 days ago
Select United flight, departing Thu, Jan 15 from Pittsburgh to Koh Samui, returning Thu, Jan 29, priced at $1,477 found 3 days ago
United
Tue, Jan 13 - Sat, Jan 31
PIT
Pittsburgh
USM
Koh Samui
$1,480 Roundtrip, found 3 days ago
$1,480
Roundtrip
found 3 days ago
Select United flight, departing Tue, Jan 13 from Pittsburgh to Koh Samui, returning Sat, Jan 31, priced at $1,480 found 3 days ago
United
Thu, Jan 15 - Thu, Jan 29
PIT
Pittsburgh
USM
Koh Samui
$1,489 Roundtrip, found 3 days ago
$1,489
Roundtrip
found 3 days ago
Select United flight, departing Thu, Jan 15 from Pittsburgh to Koh Samui, returning Thu, Jan 29, priced at $1,489 found 3 days ago
United
Thu, Jan 15 - Thu, Jan 29
PIT
Pittsburgh
USM
Koh Samui
$1,496 Roundtrip, found 3 days ago
$1,496
Roundtrip
found 3 days ago
Select United flight, departing Thu, Jan 15 from Pittsburgh to Koh Samui, returning Thu, Jan 29, priced at $1,496 found 3 days ago
American Airlines
Thu, Jan 15 - Thu, Jan 29
PIT
Pittsburgh
USM
Koh Samui
$1,537 Roundtrip, found 3 days ago
$1,537
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Jan 15 from Pittsburgh to Koh Samui, returning Thu, Jan 29, priced at $1,537 found 3 days ago
British Airways
Mon, Jan 12 - Tue, Jan 27
PIT
Pittsburgh
USM
Koh Samui
$2,317 Roundtrip, found 3 days ago
$2,317
Roundtrip
found 3 days ago
Select British Airways flight, departing Mon, Jan 12 from Pittsburgh to Koh Samui, returning Tue, Jan 27, priced at $2,317 found 3 days ago

Frequently asked questions

How much does a flight from Pittsburgh Intl. Airport (PIT) to Ko Samui Airport (USM) cost?
Lock in a cheap one-way flight from $819 or cheap return flight from $1,440 from Pittsburgh Intl. Airport (PIT) to Ko Samui Airport (USM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Pittsburgh Intl. Airport (PIT) to Ko Samui Airport (USM)?
The cheapest month to fly from PIT to USM is January, when there's less demand. Off-peak months are often when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Pittsburgh Intl. Airport (PIT) to Ko Samui Airport (USM)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll take you from PIT to USM. Then, sort your results by "Price (lowest to highest)" to snag a great deal.
How many flights per day from Pittsburgh Intl. Airport (PIT) to Ko Samui Airport (USM)?
There are no daily direct flights departing from Pittsburgh Intl. Airport (PIT) to Ko Samui Airport (USM). But you can book flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from PIT to USM?
Usually you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* However, this can change based on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Pittsburgh Intl. Airport (PIT) to Ko Samui Airport (USM)?
To avoid potential delays on the Pittsburgh Intl. Airport (PIT) to Ko Samui Airport (USM) route, travel before 3 PM. Later departures have a 22% higher chance of being canceled.**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 Pittsburgh Intl. Airport (PIT) to Ko Samui Airport (USM) last-minute?
Last-minute bookings from PIT to USM are typically more expensive. For the best prices, start searching for flights early. That being said, if you're flexible with your travel plans, it's possible to find a cheap ticket right before you leave.
Is it cheaper to book a PIT to USM flight and hotel package?
You can save money by securing a PIT to USM flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. After selecting your ideal accommodations and flights, you can add extras such as activities, tours and car rentals.
Can I cancel or change the date of my flight from Pittsburgh Intl. Airport (PIT) to Ko Samui Airport (USM)?
Typically, you can modify or cancel your PIT to USM flight. However, additional charges may apply, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you need further information, head to our Customer Service portal.

Travel information

Origin airport
Pittsburgh Intl.
Destination airport
Samui Intl. Airport
Airlines serving
British Airways
Roundtrip price
$1,439
Distance
8978 mi

Book with confidence

Pittsburgh to Samui Intl. Airport Flights

The cheapest times to fly from Pittsburgh 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 Pittsburgh to Samui Intl. Airport are during the month of January. You can find some of the cheapest flights from Pittsburgh to Samui Intl. Airport with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Pittsburgh 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 Pittsburgh 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 Pittsburgh to Samui Intl. Airport in 2025. You can also book with separate airlines for your outbound and return journeys, from $819 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 Pittsburgh 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 Pittsburgh 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.

 

Pittsburgh to Samui Intl. Airport Flights
*Available to One Key members.