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$436+ Cheap flights from Dulles Intl (IAD) to Sri Lanka

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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — CMB
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Dulles Intl to Sri Lanka

Keep the following information in mind while searching for Dulles Intl to Sri Lanka flight deals. Data was last updated September 16, 2025.

Round-trip from

$853
(Mytrip)

One-way from

$436
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$855
From Washington, D.C. Dulles Intl to Sri Lanka
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One-way flight from Washington, D.C. Dulles Intl to Sri Lanka
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Highest demand for flights based on searches. 16% potential increase in price ($214 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($69 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Dulles Intl to Sri Lanka

Cheapest flights from Dulles Intl to Sri Lanka
Explore the most affordable flight options available from Dulles Intl to Sri Lanka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Mytrip deal was found by Cheapflights users on 9/13. 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.
Sat 10/1110:05 pmIAD - CMB
1 stop19h 15mEtihad Airways
Tue 10/284:00 amCMB - IAD
1 stop22h 20mEtihad Airways
Deal found 9/13$853
This Booking.com deal was found by Cheapflights users on 9/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:10 pmIAD - CMB
1 stop19h 10mEtihad Airways
Sat 1/319:50 amCMB - IAD
1 stop40h 30mEtihad Airways
Deal found 9/14$854
This Etihad Airways deal was found by Cheapflights users on 9/15. 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.
Wed 9/2410:05 pmIAD - CMB
1 stop24h 55mEtihad Airways
Fri 10/104:05 amCMB - IAD
1 stop21h 35mEtihad Airways
Deal found 9/15$861
This CrystalTravel deal was found by Cheapflights users on 9/14. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/309:05 pmIAD - CMB
1 stop19h 20mQatar Airways
Sat 12/134:15 amCMB - IAD
1 stop22h 10mQatar Airways
Deal found 9/14$867
This CrystalTravel deal was found by Cheapflights users on 9/13. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/169:00 pmIAD - CMB
1 stop19h 35mQatar Airways
Fri 9/263:35 amCMB - IAD
1 stop21h 35mQatar Airways
Deal found 9/13$873
This SmartFares deal was found by Cheapflights users on 9/15. 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.
Sat 10/119:00 pmIAD - CMB
1 stop20h 35mMultiple Airlines
Mon 10/273:25 amCMB - IAD
1 stop23h 00mMultiple Airlines
Deal found 9/15$877
This FlightHub deal was found by Cheapflights users on 9/13. 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.
Sat 10/119:40 pmIAD - CMB
1 stop22h 05mTurkish Airlines
Tue 10/287:40 amCMB - IAD
1 stop22h 05mTurkish Airlines
Deal found 9/13$878
This CheapOair deal was found by Cheapflights users on 9/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/191:30 pmIAD - CMB
1 stop30h 10mTurkish Airlines
Tue 12/27:40 amCMB - IAD
1 stop22h 05mTurkish Airlines
Deal found 9/16$879
This FlightHub deal was found by Cheapflights users on 9/16. 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.
Tue 10/219:00 pmIAD - CMB
1 stop19h 35mQatar Airways
Sat 11/17:30 pmCMB - IAD
1 stop23h 20mQatar Airways
Deal found 9/16$882
This Etihad Airways deal was found by Cheapflights users on 9/16. 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.
Sun 10/1910:05 pmIAD - CMB
1 stop24h 55mEtihad Airways
Wed 11/59:50 amCMB - IAD
1 stop40h 30mEtihad Airways
Deal found 9/16$892
This Ovago deal was found by Cheapflights users on 9/15. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/229:00 pmIAD - CMB
1 stop19h 35mQatar Airways
Sun 10/53:35 amCMB - IAD
1 stop21h 35mQatar Airways
Deal found 9/15$893

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Sri Lanka 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 September 16, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Sri Lanka that are best for you.

Fly from

Dulles Intl

Fly to

Sri Lanka

Route

Depart

Return

Price

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Wed 9/24

10:05 pm-8:30 am

1 stop24h 55m

Colombo Bandaranaike Intl

Fri 10/10

4:05 am-4:10 pm

1 stop21h 35m

$861

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Sun 10/19

10:05 pm-3:25 pm

1 stop31h 50m

Colombo Bandaranaike Intl

Thu 10/30

9:35 pm-4:50 pm

1 stop28h 45m

$892

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Tue 10/21

10:05 pm-2:50 am

1 stop19h 15m

Colombo Bandaranaike Intl

Wed 11/5

9:35 pm-3:50 pm

1 stop28h 45m

$892

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Tue 10/21

10:05 pm-2:50 am

1 stop19h 15m

Colombo Bandaranaike Intl

Mon 11/3

9:50 am-3:50 pm

1 stop40h 30m

$892

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Mon 11/17

8:05 pm-2:45 am

1 stop20h 10m

Colombo Bandaranaike Intl

Thu 11/20

3:25 am-3:55 pm

1 stop23h 00m

$901

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Fri 10/31

11:40 am-4:30 pm

1 stop19h 20m

Colombo Bandaranaike Intl

Tue 12/2

3:25 am-3:55 pm

1 stop23h 00m

$901

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Fri 9/26

11:00 am-4:50 pm

1 stop20h 20m

Colombo Bandaranaike Intl

Tue 10/7

3:35 am-3:40 pm

1 stop21h 35m

$901

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Thu 10/30

9:05 pm-1:55 am

1 stop19h 20m

Colombo Bandaranaike Intl

Fri 12/5

7:30 pm-3:55 pm

1 stop30h 55m

$901

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Fri 10/31

11:40 am-4:30 pm

1 stop19h 20m

Colombo Bandaranaike Intl

Wed 12/3

4:15 am-3:55 pm

1 stop22h 10m

$901

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Sun 10/26

9:05 pm-2:45 am

1 stop20h 10m

Colombo Bandaranaike Intl

Fri 12/5

7:30 pm-3:55 pm

1 stop30h 55m

$901

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 22 results
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Best time to book a flight from Dulles Intl to Sri Lanka

Have a flexible travel schedule? Discover the best time to fly to Sri Lanka from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Sri Lanka

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

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Sri Lanka (average of $1,016). Flying from Washington, D.C. Dulles Intl Airport to Sri Lanka in December is currently the most expensive (average of $1,731). 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.

What is the cheapest time of day to fly from IAD to LK?

Find hourly flight availability from Dulles Intl to Sri Lanka. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

When flying from Washington, D.C. Dulles Intl Airport to Sri Lanka, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Sri Lanka

Get insights into the airlines that provide service to Sri Lanka. 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 Sri Lanka. Reviews last updated September 16, 2025.
Peruse reviews from past customers who have flown with Emirates, Qatar Airways, and Etihad Airways from Washington, D.C. Dulles Intl Airport to Sri Lanka to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very good
3,336 reviews

Comfort

8.0

Overall

8.1

Boarding

8.1

Entertainment

8.2

Food

7.9

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Emirates
8.1
Very good
3,336 reviews
Emirates
8.1
Very good
3,336 reviews

Comfort

8.0

Overall

8.1

Boarding

8.1

Entertainment

8.2

Food

7.9

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Qatar Airways
7.4
Good
3,624 reviews
Emirates
8.1
Very good
3,336 reviews

Comfort

8.0

Overall

8.1

Boarding

8.1

Entertainment

8.2

Food

7.9

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Etihad Airways
7.4
Good
1,250 reviews
Emirates
8.1
Very good
3,336 reviews

Comfort

8.0

Overall

8.1

Boarding

8.1

Entertainment

8.2

Food

7.9

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Turkish Airlines
7.3
Good
3,968 reviews
Emirates
8.1
Very good
3,336 reviews

Comfort

8.0

Overall

8.1

Boarding

8.1

Entertainment

8.2

Food

7.9

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
JetBlue
7.2
Good
2,914 reviews
Emirates
8.1
Very good
3,336 reviews

Comfort

8.0

Overall

8.1

Boarding

8.1

Entertainment

8.2

Food

7.9

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Sri Lanka. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Sri Lanka?

    There are many flights that can get you from Washington, D.C. Dulles Intl Airport to Sri Lanka in 20h 10m. Fly via Etihad Airways or Qatar Airways to get the fastest option. The distance between Washington, D.C. Dulles Intl Airport and Sri Lanka is about 8928 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Dulles Intl to Sri Lanka that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Sri Lanka 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 Washington, D.C. Dulles Intl Airport to Sri Lanka?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Sri Lanka (average of $1,016). Flying from Washington, D.C. Dulles Intl Airport to Sri Lanka in December is currently the most expensive (average of $1,731). 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

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Alternative routes for Dulles Intl to Sri Lanka

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Dulles Intl to Sri Lanka

Discover the top 9 airlines that operate flights from Dulles Intl to Sri Lanka. 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$750Average$1,042FlexibilityNo cancel feeOn-time75%
Air IndiaCheapest$830Average$1,122FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$851Average$1,010FlexibilityNo cancel feeOn-time62%
Turkish AirlinesCheapest$856Average$954FlexibilityNo cancel feeOn-time77%
Qatar AirwaysCheapest$891Average$1,146FlexibilityNo cancel feeOn-time68%
American AirlinesCheapest$900Average$1,249FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$954Average$985FlexibilityNo cancel feeOn-time75%
IndiGoCheapest$1,082Average$1,301FlexibilityNo cancel feeOn-time80%
EmiratesCheapest$1,400Average$1,720FlexibilityNo cancel feeOn-time75%

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