IAD - CMB

$408 Find Cheap Flights from Washington Dulles Airport to Colombo

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Colombo departing on 3/9. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Colombo Bandaranaike Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Colombo.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Colombo.
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Everything you should know

Cheapest round-trip
$851
Typical prices: $851-$990
Etihad Airways
Wed 3/11Tue 3/24
IAD - CMB • 1 stop
Cheapest one-way
$408
Typical prices: $436-$497
Etihad Airways
Mon 3/9
IAD - CMB • 1 stop
Top airlines
Etihad Airways
Cheapest • from $851 (round-trip)
Qatar Airways
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 Dulles Intl and Colombo. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
New Delhi (DEL)
Cheapest • Avg $1,244 (round-trip)
Doha (DOH)
Shortest trip • 20h 12m (one-way)
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 17% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Colombo!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Colombo 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 Dulles Intl to Colombo

Wed, Mar 11 - Tue, Mar 24
Etihad Airways Logo
3:35 pm - 8:15 am
IAD
-
CMB
31h 10m
1 stop
Etihad Airways Logo
4:00 am - 10:05 am
CMB
-
IAD
39h 35m
1 stop
$851Etihad Airways
Sun, Mar 22 - Sun, Apr 26
Etihad Airways Logo
3:35 pm - 2:50 am
IAD
-
CMB
25h 45m
1 stop
Etihad Airways Logo
4:20 pm - 9:45 am
CMB
-
IAD
26h 55m
1 stop
$856Etihad Airways
Sat, Apr 4 - Wed, Apr 22
Etihad Airways Logo
3:10 pm - 8:35 am
IAD
-
CMB
31h 55m
1 stop
Etihad Airways Logo
4:10 am - 9:45 am
CMB
-
IAD
39h 05m
1 stop
$859Etihad Airways
Fri, May 1 - Fri, Jun 5
Turkish Airlines Logo
9:45 pm - 5:20 am
IAD
-
CMB
22h 05m
1 stop
Turkish Airlines Logo
6:50 am - 11:35 am
CMB
-
IAD
38h 15m
1 stop
$865Turkish Airlines
Fri, May 1 - Fri, Jun 5
Turkish Airlines Logo
9:45 pm - 5:20 am
IAD
-
CMB
22h 05m
1 stop
Turkish Airlines Logo
6:50 am - 7:50 pm
CMB
-
IAD
22h 30m
1 stop
$869Turkish Airlines
Fri, May 8 - Mon, May 25
Etihad Airways Logo
3:10 pm - 2:55 pm
IAD
-
CMB
38h 15m
1 stop
Etihad Airways Logo
9:50 pm - 9:45 am
CMB
-
IAD
21h 25m
1 stop
$870Etihad Airways
Thu, Apr 2 - Sun, Apr 19
Etihad Airways Logo
3:10 pm - 8:35 pm
IAD
-
CMB
19h 55m
1 stop
Etihad Airways Logo
4:20 pm - 9:45 am
CMB
-
IAD
26h 55m
1 stop
$871Etihad Airways
Mon, Mar 30 - Fri, Apr 24
Etihad Airways Logo
3:10 pm - 8:35 am
IAD
-
CMB
31h 55m
1 stop
Etihad Airways Logo
4:10 am - 9:45 am
CMB
-
IAD
39h 05m
1 stop
$875Etihad Airways
Sat, Apr 4 - Sun, Apr 19
Etihad Airways Logo
3:10 pm - 8:35 pm
IAD
-
CMB
19h 55m
1 stop
Etihad Airways Logo
4:20 pm - 9:45 am
CMB
-
IAD
26h 55m
1 stop
$881Etihad Airways
Fri, Apr 3 - Sun, Apr 19
Etihad Airways Logo
3:10 pm - 8:35 pm
IAD
-
CMB
19h 55m
1 stop
Etihad Airways Logo
4:20 pm - 9:45 am
CMB
-
IAD
26h 55m
1 stop
$883Etihad Airways
Booking Insights

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

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike 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 Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport is February, where tickets cost $881 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,510 and $1,383 respectively.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport?

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

To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low seasonNovember
Cheapest flight$408
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 41% increase in price.
Flight from Washington Dulles Airport to Colombo

When to book flights from Dulles Intl to Colombo

Are your dates flexible? Find out the best times to travel from Dulles Intl to Colombo 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 Washington Dulles Airport to Colombo flights

  • Can I bring my pet on the flight from Washington Dulles Airport to Colombo?

    Emirates Airlines and Qatar Airways allow pets on their flights, subject to specific regulations. Emirates permits cats, dogs, and birds in the cabin or cargo hold, depending on the animal's destination and size. Qatar Airways permits cats and dogs in the cabin, with some restrictions based on the flight duration and destination.

  • What kid services are available during the flight?

    Emirates Airlines offers a range of services for young travelers, including dedicated meals, entertainment options, and special assistance for unaccompanied minors. Qatar Airways also provides child-friendly meals, a variety of entertainment choices, and the option for unaccompanied minors to receive personalized care throughout their journey.

  • How can I travel from the airport to the city center?

    In Colombo, various taxi and bus companies operate at the airport to transport passengers to the city center. You can choose from reliable services like Kangaroo Cabs, PickMe, and Uber for convenient and safe transportation. These companies offer both regular taxis and ride-hailing options.

  • Can the airlines flying from Washington Dulles Airport to Colombo accommodate special dietary requirements?

    Both Emirates Airlines and Qatar Airways cater to special dietary needs. Passengers can request special meals in advance, such as vegetarian, vegan, gluten-free, or religious-specific, ensuring their dietary requirements are met during the flight. It's recommended to inform the airline of your dietary preferences when booking your ticket.

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport was $408 for a one-way ticket and $851 for a round-trip.

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

    Yes, you’ll need a passport to travel to Colombo from Washington Dulles Airport.

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

    Washington Dulles Airport airport is called Washington, D.C. Dulles Intl and the only airport in Colombo is Colombo Bandaranaike Intl.

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

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

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

    Star Alliance, and oneworld are the airline alliances operating flights between Washington Dulles Airport and Colombo, with Star Alliance being the most commonly used for this route.

  • What is the most popular layover when flying to Colombo from Washington Dulles Airport?

    Abu Dhabi is the most popular layover city among KAYAK users traveling from Washington Dulles Airport to Colombo.

  • Which is the best airline for flights from Washington, D.C. to Colombo, Emirates or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Colombo are Emirates and Alaska Airlines. With an average price for the route of $1,716 and an overall rating of 8.1, Emirates is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $985 and an overall rating of 8.0.

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

    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 Washington Dulles Airport to Colombo.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Colombo from Washington Dulles Airport 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 Washington Dulles Airport to Colombo?

    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 Colombo with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and CMB 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 Washington Dulles Airport to Colombo?

    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 Colombo from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport

  • When booking your flight from Washington Dulles Airport (IAD) to Colombo (CMB), you'll find various ticket classes offered by different airlines. For example, Emirates Airlines provides Economy, Business, and First Class options, allowing you to choose the level of comfort and service that suits your needs. Qatar Airways offers different classes with varying amenities and benefits, such as Economy, Business, and Qsuite, their innovative and luxurious business class experience.
  • Several airlines offer special amenities to enhance your travel experience. Singapore Airlines, for instance, is renowned for its exceptional service and features like spacious seats, in-flight entertainment, and delectable meals. Etihad Airways provides passengers with the luxury of the Residence, a private three-room suite, and the First Apartments, offering an unmatched level of comfort and privacy.
  • If you're conscious of carbon emissions, consider flying with airlines prioritizing environmental sustainability. Delta Air Lines has implemented initiatives to reduce its carbon footprint, such as investing in fuel-efficient aircraft and utilizing sustainable aviation fuel. Another eco-conscious option is Virgin Atlantic, which has committed to achieving net-zero carbon emissions by 2050 through various measures, including improving fuel efficiency and supporting sustainable aviation fuel development.
  • Some flights from Washington Dulles Airport to Colombo may include layovers, varying in duration and location. For instance, Emirates Airlines often offers layovers in Dubai, allowing you to explore the vibrant city during your journey. Qatar Airways frequently offers layovers in Doha, allowing passengers to discover Qatar's capital's rich culture and attractions.
  • Each airline has its own baggage policy, so you must familiarize yourself with the guidelines. For example, Emirates Airlines typically allows Economy Class passengers to check in up to 77 lbs of baggage, while Business and First Class passengers enjoy higher weight allowances. Qatar Airways offers a baggage allowance of up to 66 lbs for Economy Class, with increased limits for Business and First Class passengers.

Reviews of the top 5 airlines serving from Dulles Intl to Colombo

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Colombo. 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 Dulles Intl to Colombo? 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 3745 reviews
7.9Crew
7.3Food
7.4Entertainment
7.4Comfort
7.5Boarding
Airline reviews

Extremely uncomfortable seats with very little cushioning, unable to recline enough to sleep comfortably on this 13 hour overnight flight. My body was in pain by the end.

4.0 OkayAnonymous, Feb 2026
MIA - DOH
Read more Qatar Airways reviews

Extremely uncomfortable seats with very little cushioning, unable to recline enough to sleep comfortably on this 13 hour overnight flight. My body was in pain by the end.

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.

Our experience on the Doha to Hyderabad segment was extremely stressful due to prolonged delays and a lack of clear communication from the airline. We were traveling as a family, including children, and the uncertainty around timing and next steps caused significant distress. There was very little proactive information provided during the delay, and we were not given clear written explanations about what was happening or how long it might take. This made it difficult to manage the situation, especially while caring for children in a transit environment. In addition, one member of our party was ultimately unable to continue travel, which added to the emotional strain and disruption of the trip. Overall, the experience highlighted gaps in communication, customer care, and handling of unexpected situations. We are sharing this feedback so that future passengers, especially families, are supported with clearer communication and better assistance during irregular operations.

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 would help id flight crew were not rude and showed some courtesy. They were shouting at passengers and yelling instructions as if we were school children at lunch cafeteria!!

All good. Over four hours flight if provided snacks like Qatar Airways would be better

Lobster starter in business class was not good, tough, served cold, and without butter. Movie selection was missing latest releases, did not offer older classic, high quality movies

Food was absolutely pathetic. I wasted so much food which I thought was inedible. I also loathe the inflight entertainment system which has very little content

My entire row did not have power for the full duration of a 14.5 hour flight. Could not charge any devices such as laptop or phones for the entirety of the long flight. The flight attendants tried to remedy the issue by resetting the power, but were not successful. The only other solution provided was to move me to another seat on the plane which was in the middle row. I had paid for a “preferred” seat that was a window seat. This was a downgrade being offered due to the power issue.

Nothing to complain. The staff and flight was good especially the seats which was better compared than the cloth ones on Qatar airways

Dear Team, I purchased a full travel package that included 2 checked bags through you and JustFly. However, when I arrived at the airport, my ticket showed 0 checked bags. Since I was traveling internationally to India with 2 bags, It was a $200 per bag at the counter, which was extremely disappointing. For an international trip, why would I ever choose a no‑bag option for only $20–$30 less? This seems like an error in the booking process, and I am requesting clarification and a resolution. I have called JustFly and on phone for 1 hr :53 min and they couldn't help till I show some kind of proof etc which isn't possible but besides that love your service and using it for years !

Good one but just notice that you have to ask several time to get water or coffee .

Early arrival. Good boarding. Deplaning this flight is very slow both coming and going. Baggage arrived quickly for Pearson

No entertainment except on app. No outlets working to charge. Good service

I booked and paid for a Business Class seat for myself and my wife. 4 hours before the flight i get a call saying the plane they sent doesn't have the correct layout to accommodate all the business class seats they sold me 3 months earlier at a premium of $1500 a ticket. So they have to bump me from Business to Economy and will give me a $400 credit (total of $800 for both seats) that I could turn in at Abu Dahbi for $400 in US cash. They then promised a row that we could have to ourselves and the arm rests would go up so we could spread out for each of us. My wife was taken care of but I was put in the exit row with the flight attendents set as part of the three...and the arm rest did not go up. When we got to Abu Dahbi, they would not exchange our credit for cash as promised. Very disappointed they took my money 3 months ago and refused to reimburse for the change in seats or follow the promises made.

It was fantastic. The flight from Chicago to Abu Dahbi was fantastic. The crew, food and service were amazing. Everything was handled by the crew member assigned to us , Nicholas, was usually done before we asked for it. Highly recommend Etihad!

Etihad Check In counter/Station manager in Heathrow was bothering and not helpful at all. They are rude and not customer oriented

I missed my flight ,staff unhelpful, they sat and watched me wait ,gangway door closed, English was a problem no announcement I was on time now I missed my month vacation ,lost 1400 bucks no refund I'm sick to my stomach

It’s a business class ticket but they didn’t give a lounge access

Crew was amazing as usual. Very comfortable for a 13hour flight. Check in at ATL was terrible. Ticket counter charged me $200 for a small bag. Apparently Kayak sold me a zero luggage ticket. No carry on no checked. So the check in desk charged me a bullshit $200 dollar fee for a small gym bag weighing less than 20lbs. In true 3rd party ticket buying. This will turn into a finger pointing process between Kayak and Etihad. Now I'm going to have to ship my bag back in the mail a day ahead of my return flight.

Good overall. Seat spacing a bit tight between IST and ISB.

Excellent staff despite some trying passenger situations. Very impressed with their good attitudes and kindness.

Crew were unfriendly, touch screen for movies didn't work very well, seats were tight and uncomfortable

After arriving in Istanbul, the transit information on the electronic board showed a tight departure time, and the gate changed in the middle, making it difficult to make it on time.

Typically good service onboard but baggage delay in airport was significant

My, Syed Zawar Hussein Shirazi frequently flyer membership number was not included on my boarding pass from O’Hare to Istanbul despite my reminder to the attendant at check in. Further she forgot to give me my boarding pass form Istanbul to Lahore and she needs to improve her customer service, please 🙏

Everything about that day was great I was happy with how things went as a first time traveling with the airline thank you for all that you’ve doing by taking us there to our various destinations thanks.

They oversold the tickets by one which was my ticket so I didn’t have a ticket till last second

Not good. I was supposed to be in Mint but got in economy class

Service was slow and checked bag was off last evening when flying business

For my arriving destination, we were delayed multiple times to the point that we arrived 6 hours after we were originally scheduled. On my flight home, they overbooked and involuntarily removed passengers (including me) from the plane. It was not a good experience.

It was good experience this time. The flight was on time.

I very rarely fly American and my experience today reenforces that is the correct decision. While the staff were all very courteous, our flight was first thing in the morning so there was no reason to be delayed, yet appropriate maintenance checks weren’t completed prior to our flight so we were delayed multiple times. Not a great showing, American Airlines.

It's very confusing because Kayak has it as American Airlines, but it was Hawaiian Airlines, but operated by Alaska Airlines. I had to go to the airport for my boarding pass because American said I didn't have any trips.

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

Flight boarded, departed and landed on time. Excellent service from flight attendant in FIRST

This was one of the most frustrating travel experiences I've had to date. I had changed my flight day of to this one as it was slated to depart on time. It ended up being so delayed that my original flight took off before this one did. The boarding process began but eventually stopped and everyone had to get off the plane as a problem was identified. The person at the front desk just tried to laugh it off as if this wasn't already a huge inconvenience. From there, we eventually got to board only to sit at the gate for an additional hour because of some additional issue. This was extremely frustrating and caused a lot of stress.

It was a little concerning to hear the ground crew arguing with the flight crew over baggage space. Instead of taking them and checking them, they started checking for space in the first class cabin moving items around like the flight crew didn't know what they were doing. I was embarrassed for them.

delayed due to weather. Could not communicate with family since the wifi was broken

I got sick nothing contagious but distressing and the care I received by Kayla? Keighly the flight attendant will be memorable for ever. Thank You

We were made to wait in the airport for six hours for a flight that was ultimately canceled.

Both flights were significantly delayed. The flight experience itself was great.

My flight got delayed and eventually canceled, then rescheduled. I and several others had a connection from Boston to Paris and asked several times if we would make it. They assured us we would and then rebooked us mid flight without our consent and closed doors early even though they said they communicated we were a bit delayed. We got stranded in Boston and I opted with being rebooked for a different connection to France since they refused to pay for a Hotel. I've now been in Europe for 5 days and still haven't recieved my bags. There was absolutely no urgency for the fact that I'm in a foreign country with absolutely no change of clothes or any of my medication. Such an overwhelming and frustrating experience.

Automated scanning was slow and somewhat haphazard. Too many people were unfamiliar with the tech and were forced to learn on the fly. The hands off approach of the gate staff made it more uncomfortable. This needs work. Overall the flight and cabin crew were excellent.

The crew for the flight was A+ top notch. They were friendly and professional and made the flight a very relaxing and enjoable.

Rude crew member. She seemed annoyed at me without me saying a single word. Also loudly admonished me for having my bag next to my seat instead of tucked away before landing. Just telling me to put it away and guiding me without giving me a lecture would have been enough.

No included food for a 5 hour flight and the entertainment was only accessible if you had wired headphones (not provided). Otherwise though, great and smooth flying and customer service.

Crew were fantastic and so catering and wonderful! Full score for the entire crew!

Because of weather and mechanical issues our flight was 4 hours late. The only compensation offered to us was a meal voucher to be used only at Boston Airport and only on the day issued. But by the time it was offered to us all the restaurants were closed, so there was no way to use that offer.

Friendly crew, efficient boarding and flight arrived early. Couldn’t ask for a better experience

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

Information on your arrival and departure airports