CMB - IAD

$686 Find Cheap Flights from Colombo to Washington Dulles Airport - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Colombo to Dulles Intl departing on 9/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

Save 20% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$1,040
Typical prices: $1,068-$1,191
Etihad Airways
Mon 9/14Sun 2/14
CMB - IAD • 1 stop
Cheapest one-way
$686
Overall average: $966
Qatar Airways
Tue 9/8
CMB - IAD • 1 stop
Top airlines
Cheapest • from $1,040 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Colombo and Dulles Intl. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $1,334 (round-trip)
Shortest trip • 20h 05m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Dulles Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Colombo to Dulles Intl (CMB-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Colombo to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Colombo to Dulles Intl

Mon, Sep 14 - Sun, Feb 14
Etihad Airways Logo
9:50 pm - 9:45 am
CMB
-
IAD
21h 25m
1 stop
Etihad Airways Logo
2:35 pm - 8:10 am
IAD
-
CMB
31h 05m
1 stop
$1,040Etihad Airways
Mon, Sep 14 - Sun, Feb 14
Etihad Airways Logo
4:20 pm - 9:45 am
CMB
-
IAD
26h 55m
1 stop
Etihad Airways Logo
2:35 pm - 8:10 am
IAD
-
CMB
31h 05m
1 stop
$1,040Etihad Airways
Thu, Sep 24 - Sat, Feb 13
Etihad Airways Logo
9:50 pm - 9:45 am
CMB
-
IAD
21h 25m
1 stop
Etihad Airways Logo
2:35 pm - 8:15 pm
IAD
-
CMB
19h 10m
1 stop
$1,071Etihad Airways
Thu, Sep 24 - Sat, Feb 13
Etihad Airways Logo
4:10 am - 9:45 am
CMB
-
IAD
39h 05m
1 stop
Etihad Airways Logo
2:35 pm - 8:10 am
IAD
-
CMB
31h 05m
1 stop
$1,090Etihad Airways
Tue, Sep 1 - Tue, Sep 8
Qatar Airways Logo
10:30 am - 3:40 pm
CMB
-
IAD
38h 40m
1 stop
Qatar Airways Logo
9:00 pm - 9:40 am
IAD
-
CMB
27h 10m
1 stop
$1,113Qatar Airways
Thu, Sep 24 - Sat, Feb 13
Multiple Airlines Logo
2:10 pm - 11:21 am
CMB
-
IAD
30h 41m
2 stops
Multiple Airlines Logo
8:10 pm - 3:55 pm
IAD
-
CMB
33h 15m
2 stops
$1,128Multiple Airlines
Thu, Sep 24 - Sat, Feb 13
Air Canada Logo
1:10 pm - 2:22 pm
CMB
-
IAD
34h 42m
2 stops
Air Canada Logo
5:15 pm - 5:25 am
IAD
-
CMB
25h 40m
2 stops
$1,256Air Canada
Tue, Sep 1 - Tue, Sep 8
Multiple Airlines Logo
11:30 am - 9:45 am
CMB
-
IAD
31h 45m
2 stops
Multiple Airlines Logo
3:10 pm - 11:30 am
IAD
-
CMB
34h 50m
3 stops
$1,266Multiple Airlines
Tue, Sep 1 - Tue, Sep 8
Qatar Airways Logo
11:25 am - 3:40 pm
CMB
-
IAD
37h 45m
1 stop
Qatar Airways Logo
2:53 pm - 2:05 am
IAD
-
CMB
25h 42m
2 stops
$1,296Qatar Airways
Fri, Aug 28 - Fri, Sep 4
Qatar Airways Logo
11:25 am - 8:45 am
CMB
-
IAD
30h 50m
1 stop
Qatar Airways Logo
9:00 pm - 2:05 am
IAD
-
CMB
19h 35m
1 stop
$1,377Qatar Airways
Booking Insights

KAYAK's insights & trends for Colombo to Dulles Intl flights

Get data-powered insights and trends into flights from Colombo to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport departing in September.

Flight prices are below average for this route right now.

Flights to Washington, D.C. Dulles Intl Airport from Colombo Bandaranaike Intl Airport usually cost between $1,553 and $1,593 in September.
The lowest price found in the past 5 days was $1,040 on Etihad Airways (Sep 14-Feb 14).

What is the cheapest month to fly from Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport is January, where tickets cost $0 (return) on average. On the other hand, the most expensive months are December and August, where the average cost of round-trip tickets is $1,691 and $1,555 respectively.

Good to know

Low season

February

Cheapest flight

$686
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Colombo to Washington Dulles Airport

When to book flights from Colombo to Dulles Intl

Are your dates flexible? Find out the best times to travel from Colombo to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Colombo to Washington Dulles Airport flights

  • What is the cheapest flight from Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport?

    In the last 5 days, the lowest price for a flight from Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport was $686 for a one-way ticket and $1,040 for a round-trip.

  • Do I need a passport to fly between Colombo and Washington Dulles Airport?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Colombo and on arrival in Washington Dulles Airport.

  • Which airports will I be using when flying from Colombo to Washington Dulles Airport?

    Colombo and Washington Dulles Airport are both served by 1 main airport. You will leave Colombo from Colombo Bandaranaike Intl and will be arriving at Washington, D.C. Dulles Intl.

  • Which aircraft models fly most regularly from Colombo to Washington Dulles Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Colombo to Washington Dulles Airport?

    oneworld is the only airline alliance operating flights between Colombo and Washington Dulles Airport.

  • Which is the best airline for flights from Colombo to Washington, D.C., Qatar Airways or Etihad Airways?

    The two airlines most popular with KAYAK users for flights from Colombo to Washington, D.C. are Qatar Airways and Etihad Airways. With an average price for the route of $1,328 and an overall rating of 7.4, Qatar Airways is the most popular choice. Etihad Airways is also a great choice for the route, with an average price of $1,227 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from Colombo to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Colombo to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Colombo to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Colombo is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Colombo to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back to Colombo with another airline. Booking your flights between Colombo and IAD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Colombo to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport from Colombo up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Colombo to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Colombo to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Colombo to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
Qatar AirwaysOverall score based on 3738 reviews
7.3Comfort
7.3Food
7.9Crew
7.5Boarding
7.3Entertainment
Airline reviews

Amazing airline accommodations. The cabins were so great. The food was very good and the flight attendants were so nice. Made a 15 hour flight seem easy.

10.0 ExcellentBrian, Feb 2026
DOH - ATL
Read more Qatar Airways reviews

Amazing airline accommodations. The cabins were so great. The food was very good and the flight attendants were so nice. Made a 15 hour flight seem easy.

I paid extra for seating when first booking flight to be in a comfortable economy seat They still changed it to a middle seat regardless. When I asked for it to be changed back to aisle, they could only give me one at the back of the plane in the least comfortable seats.

Same as already mentioned. This was more comforting as I got my aisle seat for my knee.

When we checked in at the Siem Reap Airport in Cambodia, we were only given three boarding passes and told that we would have to check in with American when we arrived in Boston. This was a source of stress for us. After we landed in Boston, we had a long passage from Terminal E to Terminal B (American Airline ticketing counter). Because the electronic ticketing kiosks for check-in would not recognize our Confirmation Code, we had to wait for an hour in a long line where only two AA reps were taking care of Special Services passengers. In many years of both business and recreational travel, I have never had this experience. I would expect more from AA being in partnership with other airlines to do a better job with this.

Qatar Airways is an excellent service provider. The crew members were attentive and helpful. The aircraft was very clean. This was the longest leg of our journey, so it would have been nice to have more leg room for comfort. We appreciated the crew's service of four hot meals to all of us during this long flight. Also, it was helpful that the crew asked us to keep the window shades down for the entire journey, allowing the environment to get lots of rest during the trip. For families traveling with little children, this was helpful to them to keep them settled.

The seat cushions are absolutely lacking, not sure if they know the passengers are traveling for 14 hours straight, but the padding made our back and butt ache like crazy. The entertainment console had its own problems, either the headphone jack wasn't working or the power outlet via usb or ac outlet was not working. Not to mention the seat handles were not adjustable in some planes in the middle or on the aisle. Qatar/Indigo may be operating a very old fleet of planes to make as much profit as possible, but passengers may not be following them for long, should this treatment of its customers continue. Qatar/Indigo, wake up and do it right by your customers, or they may not be your customers anymore.

It was very good. It was a long flight and being a tight with little leg room.

I recently travelled with Qatar Airways from Doha to Dulles in the QSuite, and the experience was nothing short of exceptional. The QSuite truly feels like a First-Class experience, with its luxurious design, privacy, and comfort. The cabin crew, especially the lady in charge of the cabin, was remarkable—professional, attentive, and genuinely kind. The food was excellent, and the comfort of the seat was absolutely first-class, making the journey smooth and enjoyable. While the in-flight experience was outstanding, I have a few points of feedback. Firstly, the content available in the in-flight entertainment system could be expanded and upgraded to include a more diverse and updated collection. This would elevate the entertainment experience to match the premium standards of the QSuite. Secondly, regarding the Wi-Fi service: while QSuite passengers receive one hour of complimentary Wi-Fi, any additional usage requires a fee of USD 10. Considering the premium pricing of QSuite, it would be more fitting to include unlimited Wi-Fi as part of the experience, further enhancing the luxury offered to passengers. Lastly, I must highlight an issue with luggage handling. Unfortunately, my luggage did not make it through the transit, which was disappointing. While the ground crew assured me that it would be delivered to my home on the same day as it was arriving on the next flight, this promise was not fulfilled, and the delay added unnecessary inconvenience to an otherwise excellent experience. Overall, the QSuite experience was exceptional, but addressing these areas would further solidify Qatar Airways’ position as a leader in luxury air travel.

Do not overbook flights and kick out confirmed ticketed passengers :-(

Vistara i bought a biz class fare but a few days before vistara always changes my biz class flight to economy .. happened to me 4 times .. seated could be wider .. boarding could be more organized .. crew did their best but not enough resources all in all very poor experience Qatar Delhi .. only complain .. no clear signage to lounge for transferring pax .. its a Delhi shot coming.. no feeling of exclusivity for biz/ 1st class pax.. but everything else was much better .. once i boarded Qatar .. i loved it Qatar to Washington .. only complain i boarding .. too crowded .. no separate area for biz/1st class should hav completely separate area for upper class.. security is stifling pax comfort by the gate ..but everything else was great

The crew were really bad mannered! And spoiled all my mood throughout the flight!

The staff was excellent. They checked on my needs at the appropriate amount, letting me sleep when I needed, checking up when I was awake.

Limit the number of usage of wine or please arrange our seats. The passenger was drunk on this flight and not on Thiruvananthapuram to Abudhabi.

The seats seemed smaller than other business class offerings. The entertainment menu was limited. Flight crew was good.

It was excellent service in the snow storm gives us hotel and transportation. It will be more better if u can add one more meal because it’s a long flight boring journey. If you give extra meal time passes faster and can enjoy the trip better

Food quality and varites were very minimum. Surprised to have no desserts. Business class tickets should have lounge access and seats selection. They should be allowed to board while people with wheel chair, secial assistance and family with childrem.

I liked the crew, the food and the foot space. I did not like the comfort of the seats.

In Colombo when I-drop my baggage Sri Lanka air line crew not polite way talk very rude

1st of all on February 27th Abu Dhabi to Delhi flight the seat wasn't comfortable at all, coming back the Lounge at Abu Dhabi didn't have anything. Than the Food in the flight

Overall mediocre experience. Check in was good. They're were discriminatory. They were not attentive, food choices were not vegetarian friendly. The food served was frozen.

Everything you need to know for your flight from Colombo to Dulles Intl

Information on your arrival and departure airports