$537 Find Cheap Flights from Sri Lanka to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Dulles Intl departing on 3/15. 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 Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Washington, D.C., as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$1,000
Overall average: $1,176
Multiple Airlines
Sun 1/11Sun 1/18
CMB - IAD • 3 stops
Cheapest one-way
$537
Typical prices: $769-$1,097
Multiple Airlines
Sun 3/15
CMB - IAD • 2 stops
When to travel
February
Cheapest • 26% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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 Sri Lanka to Dulles Intl

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

Sun, Jan 11 - Sun, Jan 18
Multiple Airlines Logo
8:15 pm - 4:40 pmCMB-IAD
54h 55m3 stops
Multiple Airlines Logo
8:30 pm - 9:55 pmIAD-CMB
38h 55m2 stops
$1,000Multiple Airlines
Find Deal
Sun, Mar 22 - Tue, May 12
Multiple Airlines Logo
5:15 pm - 10:05 amCMB-IAD
50h 20m2 stops
Multiple Airlines Logo
3:35 pm - 8:40 pmIAD-CMB
19h 35m1 stop
$1,021Multiple Airlines
Find Deal
Mon, Mar 16 - Tue, May 12
Multiple Airlines Logo
5:15 pm - 10:05 amCMB-IAD
50h 20m2 stops
Multiple Airlines Logo
3:35 pm - 8:40 pmIAD-CMB
19h 35m1 stop
$1,024Multiple Airlines
Find Deal
Wed, Mar 18 - Tue, May 12
Multiple Airlines Logo
9:10 am - 10:05 amCMB-IAD
34h 25m2 stops
Multiple Airlines Logo
3:35 pm - 8:40 pmIAD-CMB
19h 35m1 stop
$1,028Multiple Airlines
Find Deal
Thu, Mar 19 - Tue, May 12
Etihad Airways Logo
9:35 pm - 10:05 amCMB-IAD
22h 00m1 stop
Etihad Airways Logo
3:35 pm - 8:40 pmIAD-CMB
19h 35m1 stop
$1,029Etihad Airways
Find Deal
Thu, Mar 19 - Tue, May 12
Multiple Airlines Logo
9:35 pm - 4:16 pmCMB-IAD
28h 11m2 stops
Multiple Airlines Logo
3:35 pm - 2:50 amIAD-CMB
25h 45m1 stop
$1,039Multiple Airlines
Find Deal
Mon, Mar 16 - Tue, May 12
Etihad Airways Logo
9:50 am - 10:05 amCMB-IAD
33h 45m1 stop
Etihad Airways Logo
3:35 pm - 8:30 amIAD-CMB
31h 25m1 stop
$1,049Etihad Airways
Find Deal
Thu, Mar 19 - Tue, May 12
Multiple Airlines Logo
11:40 pm - 9:21 pmCMB-IAD
31h 11m3 stops
Multiple Airlines Logo
6:00 pm - 8:35 amIAD-CMB
29h 05m2 stops
$1,050Multiple Airlines
Find Deal
Fri, Mar 20 - Tue, May 12
Multiple Airlines Logo
3:00 am - 10:05 amCMB-IAD
40h 35m2 stops
Multiple Airlines Logo
3:35 pm - 8:40 pmIAD-CMB
19h 35m1 stop
$1,055Multiple Airlines
Find Deal
Sat, Mar 21 - Tue, May 12
Multiple Airlines Logo
5:05 pm - 10:05 amCMB-IAD
50h 30m2 stops
Multiple Airlines Logo
3:35 pm - 8:40 pmIAD-CMB
19h 35m1 stop
$1,056Multiple Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for flights to Dulles Intl

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights 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 to Washington, D.C. Dulles Intl Airport is February, where tickets cost $950 on average for one-way flights. On the other hand, the most expensive months are August and March, where the average cost of tickets from Sri Lanka is $1,572 and $1,555 respectively. For return trips, the best month to travel is February with an average price of $950.

Good to know

Low seasonMarch
Cheapest flight$537
Best time to beat the crowds but there is an average 21% increase in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Colombo to Washington Dulles Airport

FAQs - booking Washington Dulles Airport flights

  • How far is Washington, D.C. Dulles Intl Airport from central Washington, D.C.?

    You’ll need to travel 22 miles to reach the Washington, D.C. city center from Washington, D.C. Dulles Intl Airport.

  • What is the cheapest day to fly to Washington, D.C.?

    Based on KAYAK data, the cheapest day to fly to Washington, D.C. is Friday where tickets can be as cheap as $1,248. On the other hand, the most expensive day to fly is Saturday, where prices are $1,824 on average.

  • How does KAYAK find such low prices on flights 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 to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket 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 is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Washington, D.C. Dulles Intl Airport?

    The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is generally in the morning, when flights cost $1,385 on average. The most expensive time of day to fly to Washington, D.C. Dulles Intl Airport is generally at night, which is peak travel time and where the average cost of a ticket is $1,725.

  • How many direct flights to Washington, D.C. Dulles Intl Airport are there each week?

    Each week there are around 2,767 direct flights from within Sri Lanka to Washington, D.C. Dulles Intl Airport. The most common day for departures is Friday, with 15% of flights taking off on this day.

Top tips for finding cheap flights to Washington Dulles Airport

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Washington Dulles Airport flight deals.

Reviews of the top 3 airlines serving from Sri Lanka to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Sri Lanka to Washington, D.C.. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with 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 3677 reviews
7.9Crew
7.4Comfort
7.4Entertainment
7.5Boarding
7.3Food
Airline reviews

Paid $10 for wifi for full flight duration and the wifi wasn’t available after initial 2 hours

6.0 GoodAnonymous, Oct 2025DOH - SFO
Read more Qatar Airways reviews

Paid $10 for wifi for full flight duration and the wifi wasn’t available after initial 2 hours

My baggage is lost. Flight cancelled, Rebooked ticket through long routes. Mental stress, emotional hurt

The flight overall was good. The attendants did a good job except that 1 female had too much fragrance on. The other things that made the flight unpleasant were out of the airlines control.

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

I would love the entertainment center to be updated with more content. The flight to Doha had more options than the one to Miami

Overall the experience was neat with crew being nice and caring especially to parent with kids. The free snacks option was okay. The kiosk at Philly airport didn’t work.

First keep the airline as you promise. Reason for travelling from Orlando to Tampa is to go with Qatar Airline. We end up with American Airline. As expected the service was horrible.

Not sure how we end up with American Airlines instead of Qatar Airways. From Philadelphia to Qatar they boarded us then they asked us to unload. After 30 minutes later they board us again. The inside the plane it was burning hot and we were sweating like crazy. Crew members are absolute rude. The way they served the passengers were horrible. One of the crew members hit my knee with food cart and kept going. I was holding an ice pack for almost 2 hours. I am still with the pain.

I felt that when I was rerouted it should have been to business class.

The flight was smooth Thank God but the delays and changing gates for 3-4 times made me so tired of walking back and forth with heavy bags I thought I was going to pass out with heavy headaches but Thank God finally found the final gate and home safe. These delays happen anytime for important reasons so just be patient when you come across these situations.

Etihad charged me for 2 check in bags. On Kayak search results price was showing 2 check in bags were included. Kayak need to reimburse me for these additional charges and metal agony and distress. Thanks.

Will never book any flight from Kayak and will never travel ithad airline

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

Same problem place in the middle so small Im 1,85 m so not good 👍

Boarding was excellent except they did last call 30 minutes earlier .

The food could be better. Toilets were smelly all along

second leg was more comfortable. Customer service in Abu Dhabi is okay.

Horrible. After paying for seats, I was cramped, my daughters legs kept hitting the seat in front, I had no overhead bin space and no help from stewards on board, the food was served cold, when asked for snacks was told to wait and never received any, the flight was cold with no temperature controls. Entertainment was outdated. I booked this through partnership with American Airlines but will avoid in the future.

Flight was delayed due to slow boarding process by etihad. Update food options and movies as well.

Should have had business class line in immigration. Food quality suboptimal

I like how the crew and pilot kept us updated Even though our flight was slightly delayed. We made up time for it in the air. I really did enjoy my seat and amenities and my trip and value overall.

The flight was delayed multiple times, again no fault of American but again the extra cost, for everything makes it feel like a cheap airline! Especially when flights are outrageously expensive already

The inflight staff is never the issue always the extra and charges american charges! Literally 30 bucks for WiFi! Is insane and then it’s choppy and slow. If you pay for it once you don’t need to pay again for switching aircraft especially when there is flight delays

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

I had a positive experience on American. I'm blind and traveling with a guide dog and the flight attendants were so kind, friendly, and helpful towards us. They checked in on us during the flight and they made us feel comfortable and welcomed. There was an hour delay before depature, but overall the flight was a smooth ride. I appreciate that there were no issues on this long flight back home.

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

Initial flight was cancelled at the time of arrival to the airport, flight alternative requires switching from direct to flight with a layover, and the plane felt like it would split apart, it was so rattle-y.

Weather delay for 2.5 hours followed by half hour crew delay, did not have ginger ale, uncomfortable seats

It was nobody’s fault - but the plane came 4-hrs late and we were updated randomly in 20-30 mins increments which left us hostage to sit and wait expectantly. It was very long and got very late. Our plane didn’t land until nearly 1 am! Also the toilet wasn’t working. The hosts were nice enough but were clearly “about to pass out” as one told me. Lastly, there was no snack or even time for it. Just a bad experience overall.

The boarding crew was incredibly helpful getting me on an earlier flight

Traveling to a place near Dulles Intl?

Book flights to Dulles Intl if you plan to visit one of these locations
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Everything you need to know for your flight to Dulles Intl

Information on the airport you'll fly into in Washington, D.C.