Dulles Intl

$477+ Cheap flights from Sri Lanka to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
CMB — IAD
Dec 3 — Dec 101
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Cheap flight deals from Sri Lanka to Dulles Intl

Keep the following information in mind while searching for Sri Lanka to Dulles Intl flight deals. Data was last updated November 3, 2025.

Round-trip from

$904
(Orbitz)

One-way from

$477
(Kiwi.com)

Popular in

January

Cheapest in

March

Average price

$1,795
From Sri Lanka to Washington, D.C. Dulles Intl
One-way flight from Sri Lanka to Washington, D.C. Dulles Intl
Highest demand for flights based on searches. 4% potential increase in price ($74 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($53 potential savings vs. average RT price).
Average for round-trip flights in November 2025

Find flight deals from Sri Lanka to Dulles Intl

Cheapest flights from Sri Lanka to Dulles Intl
Explore the most affordable flight options available from Sri Lanka to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

This SmartFares deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/32:40 amCMB - IAD
2 stops27h 55mMultiple Airlines
Thu 5/78:45 pmIAD - CMB
2 stops39h 55mMultiple Airlines
Deal found 10/30$879
This Mytrip deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/268:55 pmCMB - IAD
2 stops29h 05mMultiple Airlines
Fri 12/56:10 pmIAD - CMB
2 stops23h 40mMultiple Airlines
Deal found 10/31$1,110
This Priceline deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/34:00 amCMB - IAD
1 stop22h 00mEtihad Airways
Thu 5/73:35 pmIAD - CMB
1 stop38h 20mEtihad Airways
Deal found 10/30$1,220

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sri Lanka to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 3, 2025.
Use the filters below to find and compare flights from Sri Lanka to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Sri Lanka

Fly to

Dulles Intl

Route

Depart

Return

Price

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Wed 12/3

2:40 am-8:05 pm

2 stops27h 55m

Washington, D.C. Dulles Intl

Thu 5/7

8:45 pm-10:10 pm

2 stops39h 55m

$879

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Sun 2/8

10:15 pm-7:20 pm

2 stops31h 35m

Washington, D.C. Dulles Intl

Tue 2/24

2:35 pm-2:50 am

1 stop25h 45m

$994

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Wed 2/18

12:35 am-7:20 pm

2 stops29h 15m

Washington, D.C. Dulles Intl

Fri 3/6

2:35 pm-8:15 am

1 stop31h 10m

$1,092

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Sat 12/6

9:35 pm-8:31 am

3 stops45h 26m

$541

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Sun 11/16

10:15 pm-7:20 pm

2 stops31h 35m

$545

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Sat 1/24

10:15 pm-11:45 am

2 stops48h 00m

$590

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Thu 3/12

3:00 am-10:05 am

3 stops40h 35m

$668

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Tue 3/24

1:10 am-10:05 am

2 stops42h 25m

$688

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Fri 12/5

4:00 am-3:30 pm

1 stop22h 00m

$728

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Sat 11/15

4:00 am-3:30 pm

1 stop22h 00m

$728

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Best time to book a flight from Sri Lanka to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Sri Lanka with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Sri Lanka to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from Sri Lanka to Washington, D.C. Dulles Intl Airport?

Currently, July is the cheapest month in which you can book a flight from Sri Lanka to Washington, D.C. Dulles Intl Airport (average of $798). Flying from Sri Lanka to Washington, D.C. Dulles Intl Airport in August is currently the most expensive (average of $1,563). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated November 3, 2025.
Get a feel of what it's like to fly with Qatar Airways, Etihad Airways, and American Airlines from Sri Lanka to Washington, D.C. Dulles Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

7.3

Comfort

7.4

Entertainment

7.4

Overall

7.4

Boarding

7.5

Crew

7.9

Reviews

1 / 20
6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.

Food

7.3

Comfort

7.4

Entertainment

7.4

Overall

7.4

Boarding

7.5

Crew

7.9

Reviews

1 / 20
6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.

Food

7.3

Comfort

7.4

Entertainment

7.4

Overall

7.4

Boarding

7.5

Crew

7.9

Reviews

1 / 20
6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.

Food

7.3

Comfort

7.4

Entertainment

7.4

Overall

7.4

Boarding

7.5

Crew

7.9

Reviews

1 / 20
6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.

Related info for your journey

Find useful and relevant information for your journey from Sri Lanka to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • Can I find deals for flights from Sri Lanka to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Sri Lanka to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Sri Lanka to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sri Lanka to Dulles Intl.

  • Can I find deals for business class flights from Sri Lanka to Dulles Intl?

    Yes. Cheapflights offers flight deals from Sri Lanka to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Sri Lanka to Washington, D.C. Dulles Intl Airport?

    Currently, July is the cheapest month in which you can book a flight from Sri Lanka to Washington, D.C. Dulles Intl Airport (average of $798). Flying from Sri Lanka to Washington, D.C. Dulles Intl Airport in August is currently the most expensive (average of $1,563). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Owings Mills
Linthicum Heights
Manassas
Largo
Oxon Hill
Laurel
Towson
National Harbor
Waldorf
Bowie

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Alternative routes for Sri Lanka to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Sri Lanka to Dulles Intl

Discover the top 3 airlines that operate flights from Sri Lanka to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest$929Average$1,335FlexibilityNo cancel feeOn-time68%
Etihad AirwaysCheapest$942Average$1,250FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$1,267Average$1,357FlexibilityNo cancel feeOn-time71%

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