RM 1,756 Cheap Flights from Washington (IAD) to Bangkok (BKK)

Within the past 7 days on Expedia, for flights departing within the next year, the lowest price listed for a round-trip flight from IAD to Suvarnabhumi Intl. Airport (BKK) was RM 3,613. Fares this good don't wait forever, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply.

Every air carrier has its own terms and conditions. If you do decide to cancel, follow the easy instructions on our Customer Service Portal.

Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Dulles Intl. Airport to Bangkok Airport flights, you'll see a "no change fees" filter for you to select.

With a flight distance of 14,200 kilometres between Chantilly and Bang Phli, this is a long-haul journey. Remember to stay hydrated and move your legs every now and then.

At present, no airlines offer direct flights from IAD to Suvarnabhumi Intl. Airport (BKK). You'll have to book a flight with one or more stops. To score the best connections and price, lock in your airfare well in advance.

Tickets from IAD to BKK are available up to 12 months prior to departure on Expedia. And although you may occasionally score a fantastic last-minute deal, it's never something you can count on. Also, booking your flights in advance means you'll have more options — and you can avoid getting stuck in the dreaded middle seat! We regularly update our fares to make sure you get the biggest bargains, so keep checking in for all the latest specials.