What’s the cost of a flight from Washington Dulles to Ko Samui?

Prices vary based on date, airline, and availability. Compare several options if you're flying between Washington and Ko Samui.

Choose a date to explore the best fares now.

If possible, avoid holiday periods: ticket prices tend to rise quickly and availability drops, especially on busy routes. Morning and evening flights are often in high demand too — book early to get a good fare.

What are the airport options between Washington and Ko Samui?

If both departure and destination cities offer multiple airports, comparing them can help you save time and money.

• Airports in Washington: Washington has 3 airports - Dulles international, Ronald Reagan, Washington International.
• Airports in Ko Samui: Ko Samui has one airport operating, Ko Samui - Koh Samui.

Some airports have different terminals for low-cost and traditional airlines — knowing in advance can save time. You can filter results to see only the airports that suit you.

Smart ways to search flights from Washington Dulles to Ko Samui

Use Jetcost to view tailored results based on what you care about — time, duration, number of stops, or even your preferred booking agency. Results include the best airlines and travel agencies.

Other popular destinations

Flying to Thailand? Other travelers also searched: Bangkok, Chiang Mai, Ko Samui, Krabi, Phuket.

Prefer non-stop flights? Just activate the filter to skip unnecessary layovers. If your dates are flexible, you can also explore different departure and return combinations to find the best fit.