$1,224 Cheap SriLankan Airlines flights Colombo (CMB) to Washington (IAD)

You’ll discover affordable round-trip SriLankan Airlines flights from $2,150 from CMB to IAD by organizing your results from “Price (lowest to highest)” on Expedia. Or search for options from $1,224 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

January is one of the cheapest months to get away to Washington with SriLankan Airlines. You could also find excellent prices on return and one-way tickets in February.

Start your search for SriLankan Airlines flights from CMB to IAD about one month before you want to leave. The most affordable time to book an international flight is generally 18 to 29 days ahead of your departure date when you can save 17% versus booking four to five months in advance. No matter your itinerary or fare class, the best day to book international airfare is usually Sunday. Friday is often the most expensive. Passengers who book on a Sunday can save 17% on average compared to those who book on a Friday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Fill in your dates, hit search and select the “Nonstop” filter on Expedia to find any direct flights from CMB to IAD with SriLankan Airlines or other carriers.

Browse SriLankan Airlines’s earliest flights from CMB to IAD by using our “Early Morning” and “Morning” filters. Not only will you get to your destination sooner, early departures are also 20% less likely to be canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Washington Dulles Intl. Airport (IAD) is the main Washington hub for SriLankan Airlines flights from Bandaranaike Intl. Airport (CMB).

SriLankan Airlines allows you to bring 1 checked-in bag weighing up to 66 lb with maximum dimensions of 62 inches on standard economy flights from CMB to IAD. Additionally, you can take 1 cabin bag with you in the cabin. This carry-on luggage must not exceed 45 inches and weigh less than 15 lb. Baggage rules can differ based on your fare type and cabin class, so double-check your booking or SriLankan Airlines’s website to avoid any additional fees at the airport.

Traveling from CMB to IAD with SriLankan Airlines means enjoying a host of benefits, including a 4-star airline rating and top-tier customer service. Plus, when you book through Expedia, One Key™ members can collect OneKeyCash™* to use on select future travel purchases. That’s on top of the SriLankan FlySmiLes points you can earn with SriLankan Airlines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on the type of fare you purchased, a fee typically applies if you cancel or change your flight more than 24 hours after it’s been confirmed. To secure flexible plane tickets, select our “Changes included” and “No cancel fee” boxes while looking for flights. For additional information on modifying or canceling your reservation, go to “Trips,” select your flight and click on “Manage Booking.”