
$900 Cheap Cathay Pacific flights from Washington to Samui Intl. Airport (IAD to USM)
Find The Best Day To Fly from Washington to Samui Intl. Airport
Amazing Cathay Pacific IAD to USM Flight Deals
The cheapest flights to Samui Intl. Airport found within the past 7 days were $2,081 round trip and $900 one way. Prices and availability subject to change. Additional terms may apply.
Discover our best Cathay Pacific flight from Washington IAD to Samui Intl. Airport USM
To find the best deals on flights to Washington from Samui Intl. Airport with Cathay Pacific, just enter your travel dates, filter by Cathay Pacific, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.
Return flights from Washington IAD to Samui Intl. Airport USM with Cathay Pacific
If you’re planning a round trip, booking return flights with Cathay Pacific is usually the most cost-effective option. With airfares ranging from $2,081 to $2,081, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply.
Book one-way Cathay Pacific flights from Washington IAD to Samui Intl. Airport USM
A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way Cathay Pacific flight from Washington to Samui Intl. Airport costs from $900. Prices and availability subject to change. Additional terms may apply.
The easy way to find cheap flights to Samui Intl. Airport USM from Washington IAD with Cathay Pacific
To find a cheap Cathay Pacific flight from Washington IAD to Samui Intl. Airport USM, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference.
How to find our best airfare deals on Cathay Pacific flights from Washington IAD to Samui Intl. Airport USM
If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as May, or if you book a flight with a stopover.
Find nonstop flights from Washington IAD to Samui Intl. Airport USM with Cathay Pacific
If you’re keen to be on Samui Intl. Airport soil fast, don’t waste time with a stopover—filter your search results to show direct Cathay Pacific flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it.
Flexible airline tickets for Cathay Pacific flights from Washington IAD to Samui Intl. Airport USM
Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.
There are a lot of reasons to book your flights to Samui Intl. Airport USM from Washington IAD with Cathay Pacific on Travelocity
At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.
Airport code | Country | Airport name | Number of flights |
|---|---|---|---|
| HKG | HKG | Hong Kong Intl. | 35 |
| ANC | USA | Ted Stevens Anchorage Intl. | 12 |
| PVG | CHN | Pudong Intl. | 3 |
| LAX | USA | Los Angeles Intl. | 3 |
| TPE | TWN | Taoyuan Intl. | 2 |
| SGN | VNM | Tan Son Nhat Intl. | 2 |
| DFW | USA | Dallas-Fort Worth Intl. | 2 |
| LHR | GBR | Heathrow | 2 |
| NRT | JPN | Narita Intl. | 2 |
| KIX | JPN | Kansai Intl. | 2 |
Travelers ❤️ these 🏨 after their flight to Samui Intl. Airport

The Briza Beach Resort, Samui
Le petit déjeuner était parfait et le personnel très serviable et adorable. La piscine, petite, nous avons pied partout, mais propre. Accès à la mer par une échelle en métal rouillé, pas facile. Un autre accès par des marches en béton, à marée basse mais glissant en bas. La plage n'est pas propre. ...
Reviewed on Apr 1, 2026

Hyatt Regency Koh Samui
All the staff were delightful. The kids club and its staff deserves a special mention. The activities were great and the staff were so kind and friendly. My daughter loved it so much.
Reviewed on Mar 29, 2026

Marasca Samui - Small Luxury Hotels of the World
The room is clean and spacious. The front desk staff was welcoming and helpful. However, cleaning staff is not attentive (I ate fruit in the room and the table was still sticky the next day, amenities were not replaced consistently). On weekends, music from neighboring parties is heard (and felt!) ...
Reviewed on Dec 5, 2025
