HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$679+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
CMB — IAD
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Sri Lanka to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 April 24, 2025.

Round-trip from

$1,043
(StudentUniverse)

One-way from

$679
(Booking.com)

Popular in

August

Cheapest in

March

Average price

$1,785
From Sri Lanka to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Sri Lanka to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($137 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($51 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 April 24, 2025.

This Travelocity deal was found by Cheapflights users on 4/21. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/216:25 pmCMB - IAD
2 stops28h 35mMultiple Airlines
Wed 5/288:45 pmIAD - CMB
2 stops26h 20mMultiple Airlines
Deal found 4/21$903
This Justfly.com deal was found by Cheapflights users on 4/22. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1112:30 amCMB - IAD
2 stops49h 13mAir Canada
Thu 3/263:55 pmIAD - CMB
2 stops28h 05mAir Canada
Deal found 4/22$1,188
This Etihad Airways deal was found by Cheapflights users on 4/22. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/174:30 pmCMB - IAD
1 stop33h 10mEtihad Airways
Tue 7/2910:05 pmIAD - CMB
1 stop31h 50mEtihad Airways
Deal found 4/22$1,230
This FlightHub deal was found by Cheapflights users on 4/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/117:25 amCMB - IAD
1 stop22h 35mTurkish Airlines
Thu 3/2610:25 pmIAD - CMB
1 stop22h 00mTurkish Airlines
Deal found 4/22$1,303
This American Airlines deal was found by Cheapflights users on 4/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/203:35 amCMB - IAD
1 stop21h 35mAmerican Airlines
Wed 5/289:00 pmIAD - CMB
1 stop19h 35mAmerican Airlines
Deal found 4/21$1,557
This oojo deal was found by Cheapflights users on 4/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/203:35 amCMB - IAD
1 stop21h 35mQatar Airways
Wed 5/286:30 amIAD - CMB
2 stops34h 05mQatar Airways
Deal found 4/21$1,635
This Emirates deal was found by Cheapflights users on 4/22. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/172:05 amCMB - IAD
1 stop40h 05mEmirates
Wed 8/275:10 pmIAD - CMB
2 stops29h 30mEmirates
Deal found 4/22$1,744
This Gulf Air deal was found by Cheapflights users on 4/23. 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 Gulf Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/15:25 pmCMB - IAD
3 stops56h 15mGulf Air
Tue 8/2610:05 pmIAD - CMB
3 stops49h 55mGulf Air
Deal found 4/23$2,127
This British Airways deal was found by Cheapflights users on 4/22. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/153:35 amCMB - IAD
2 stops26h 10mBritish Airways
Sun 11/169:55 pmIAD - CMB
2 stops24h 50mBritish Airways
Deal found 4/22$2,416

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 April 24, 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

Tue 7/1

2:10 pm-3:20 pm

2 stops34h 40m

Washington, D.C. Dulles Intl

Tue 8/26

8:45 pm-4:55 am

2 stops22h 40m

$1,043

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Tue 6/17

3:25 am-9:01 pm

2 stops51h 06m

Washington, D.C. Dulles Intl

Wed 8/27

9:45 am-12:45 pm

2 stops41h 30m

$1,203

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Wed 6/18

9:45 pm-4:10 pm

1 stop27h 55m

Washington, D.C. Dulles Intl

Wed 8/27

10:05 pm-2:50 am

1 stop19h 15m

$1,230

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Tue 6/17

3:35 am-3:40 pm

1 stop21h 35m

Washington, D.C. Dulles Intl

Wed 8/27

9:00 pm-3:05 am

1 stop20h 35m

$1,655

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Tue 6/17

2:05 am-8:40 am

1 stop40h 05m

Washington, D.C. Dulles Intl

Wed 8/27

5:10 pm-8:10 am

2 stops29h 30m

$1,744

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Tue 7/1

5:25 pm-4:10 pm

3 stops56h 15m

Washington, D.C. Dulles Intl

Tue 8/26

10:05 pm-9:30 am

3 stops49h 55m

$2,127

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Fri 8/15

3:35 am-8:15 pm

2 stops26h 10m

Washington, D.C. Dulles Intl

Sun 11/16

9:55 pm-9:15 am

2 stops24h 50m

$2,416

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Mon 8/18

12:50 pm-7:45 pm

2 stops40h 25m

$679

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Mon 8/18

4:30 pm-4:10 pm

1 stop33h 10m

$992

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Mon 8/18

1:05 pm-9:01 pm

2 stops41h 26m

$1,214

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 13 results
1
2

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, August is the cheapest month in which you can book a flight from Sri Lanka to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Sri Lanka to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $383). 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.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 April 24, 2025.
Singapore Airlines
8.1
Very good
1,290 reviews

Crew

8.6

Boarding

8.2

Entertainment

8.0

Overall

8.1

Comfort

7.9

Food

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Singapore Airlines
8.1
Very good
1,290 reviews
Singapore Airlines
8.1
Very good
1,290 reviews

Crew

8.6

Boarding

8.2

Entertainment

8.0

Overall

8.1

Comfort

7.9

Food

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Emirates
8.0
Very good
3,205 reviews
Singapore Airlines
8.1
Very good
1,290 reviews

Crew

8.6

Boarding

8.2

Entertainment

8.0

Overall

8.1

Comfort

7.9

Food

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Qatar Airways
7.4
Good
3,561 reviews
Singapore Airlines
8.1
Very good
1,290 reviews

Crew

8.6

Boarding

8.2

Entertainment

8.0

Overall

8.1

Comfort

7.9

Food

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Etihad Airways
7.4
Good
1,202 reviews
Singapore Airlines
8.1
Very good
1,290 reviews

Crew

8.6

Boarding

8.2

Entertainment

8.0

Overall

8.1

Comfort

7.9

Food

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Gulf Air
7.1
Good
200 reviews
Singapore Airlines
8.1
Very good
1,290 reviews

Crew

8.6

Boarding

8.2

Entertainment

8.0

Overall

8.1

Comfort

7.9

Food

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

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.

  • What are the cheapest airlines to fly from Sri Lanka to Washington, D.C. Dulles Intl Airport one-way?

    For one-way options, check prices for IndiGo. According to our data, you can fly for as low as $679. Users have also found prices from $992 and $1,214 on Etihad Airways and Air Canada, respectively.

  • 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, August is the cheapest month in which you can book a flight from Sri Lanka to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Sri Lanka to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $383). 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 Sri Lanka?

Book flights to Sri Lanka if you plan to visit one of these locations
Arlington
Alexandria
Woodbridge
Fairfax
Tysons
Springfield
Rockville
Fredericksburg
Gaithersburg
Silver Spring
Linthicum Heights
Falls Church
Laurel
Easton
Herndon
Sterling
Bowie
Towson
National Harbor
Oxon Hill

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Sri Lanka to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Hyderabad to Dulles Intl flights
Incheon Intl to Dulles Intl flights
Hyderabad to Reagan-National flights
Hyderabad to Baltimore flights
New Delhi to Dulles Intl flights
Taiwan Taoyuan Intl to Dulles Intl flights
Haneda to Dulles Intl flights
Mumbai to Dulles Intl flights
Suvarnabhumi to Dulles Intl flights
Mumbai to Baltimore flights
Mumbai to Reagan-National flights
Incheon Intl to Baltimore flights
Manila to Dulles Intl flights
New Delhi to Reagan-National flights
Incheon Intl to Reagan-National flights
Lahore to Dulles Intl flights
Taiwan Taoyuan Intl to Baltimore flights
Narita to Dulles Intl flights
Ahmedabad to Dulles Intl flights
Taiwan Taoyuan Intl to Reagan-National flights
Bangalore to Dulles Intl flights
Dhaka to Dulles Intl flights
Singapore to Baltimore flights
Singapore to Dulles Intl flights
Narita to Baltimore flights
Haneda to Reagan-National flights
Bangalore to Baltimore flights
Narita to Reagan-National flights
Bangalore to Reagan-National flights
Capital to Dulles Intl flights
Islamabad to Dulles Intl flights
Haneda to Baltimore flights
Hongqiao Intl to Dulles Intl flights
Singapore to Reagan-National flights
Hong Kong to Dulles Intl flights
Ho Chi Minh City to Dulles Intl flights
Kathmandu to Dulles Intl flights
Chennai to Dulles Intl flights
Soekarno-Hatta Intl to Dulles Intl flights
Hong Kong to Reagan-National flights
New Delhi to Baltimore flights
Manila to Reagan-National flights
Capital to Baltimore flights
Karachi to Dulles Intl flights
Hong Kong to Baltimore flights
Lahore to Reagan-National flights

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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$805Average$1,176FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$929Average$1,316FlexibilityNo cancel feeOn-time68%
Turkish AirlinesCheapest$1,302Average$1,366FlexibilityNo cancel feeOn-time77%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.