Cheap Flights from Washington (IAD) to Colombo (CMB)

Start packing your bags, because round-trip flights between Dulles Intl. Airport and Colombo International Airport start from . That's based on fares listed within the last 7 days on Expedia for flights departing within the next year. Prices can rise quickly, so book today to nab the best deal. Prices and availability are subject to change. Additional terms apply.

The majority of flights can be cancelled online, but each air carrier has different terms and conditions. If you do need to cancel your flight, go to our Customer Service Portal and follow the instructions.

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 Washington Dulles Intl. Airport (IAD) to CMB flights, you'll see a "no change fees" filter for you to select.

With a flight distance of 14,400 kilometres between Chantilly and Seeduwa - Katunayake, this is a long-haul trip. Remember to stay hydrated and move your legs every now and then.

Unfortunately, there aren't any airlines that directly fly between IAD and CMB. You'll need to book a flight with one or more stops.

Late planners can occasionally score a bargain, with some super cheap airfares from Dulles Intl. Airport to Bandaranaike Intl. Airport (CMB) appearing a few weeks prior to the departure date. If you'd rather plan ahead, Expedia compares and updates all the best flight deals continuously — as early as 12 months in advance in some cases. It depends on the carrier though, as not all airlines advertise prices so far in advance.