HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sri Lanka

$436+ Cheap flights from Washington, D.C. (WAS) 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 8/7. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — CMB
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington, D.C. to Sri Lanka 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 Washington, D.C. to Sri Lanka

Keep the following information in mind while searching for Washington, D.C. to Sri Lanka flight deals. Data was last updated July 31, 2025.

Round-trip from

$933
(Etihad Airways)

One-way from

$436
(Gotogate)

Popular in

December

Cheapest in

February

Average price

$1,353
From Washington, D.C. (WAS) to Sri Lanka
Search Deals
One-way flight from Washington, D.C. (WAS) to Sri Lanka
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($187 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($64 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from Washington, D.C. to Sri Lanka

Cheapest flights from Washington, D.C. to Sri Lanka
Explore the most affordable flight options available from Washington, D.C. to Sri Lanka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This Etihad Airways deal was found by Cheapflights users on 7/31. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/910:05 pmIAD - CMB
1 stop19h 15mEtihad Airways
Thu 9/254:05 amCMB - IAD
1 stop21h 35mEtihad Airways
Deal found 7/31$933
This oojo deal was found by Cheapflights users on 7/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/279:00 pmIAD - CMB
1 stop27h 10mQatar Airways
Sat 9/133:35 amCMB - IAD
1 stop21h 35mQatar Airways
Deal found 7/30$939
This Gotogate deal was found by Cheapflights users on 7/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2710:05 pmIAD - CMB
1 stop24h 55mMultiple Airlines
Sun 9/149:55 pmCMB - IAD
2 stops47h 20mMultiple Airlines
Deal found 7/30$962
This Turkish Airlines deal was found by Cheapflights users on 7/31. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/139:40 pmIAD - CMB
1 stop22h 05mTurkish Airlines
Wed 9/246:45 amCMB - IAD
1 stop22h 30mTurkish Airlines
Deal found 7/31$983
This JetBlue deal was found by Cheapflights users on 7/30. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/169:00 pmIAD - CMB
1 stop20h 35mJetBlue
Thu 10/28:20 pmCMB - IAD
1 stop21h 50mJetBlue
Deal found 7/30$986
This oojo deal was found by Cheapflights users on 7/29. 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.
Mon 10/205:20 pmDCA - CMB
2 stops39h 25mAir India
Mon 10/274:00 pmCMB - DCA
2 stops32h 02mAir India
Deal found 7/29$997
This Mytrip deal was found by Cheapflights users on 7/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/275:45 amBWI - CMB
2 stops32h 15mMultiple Airlines
Fri 9/125:05 pmCMB - BWI
3 stops31h 50mMultiple Airlines
Deal found 7/30$1,020
This FlightHub deal was found by Cheapflights users on 7/29. 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.
Mon 10/205:30 pmDCA - CMB
2 stops23h 05mQatar Airways
Sun 10/263:25 amCMB - DCA
2 stops25h 46mQatar Airways
Deal found 7/29$1,165
This FlightHub deal was found by Cheapflights users on 7/31. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/44:44 pmBWI - CMB
2 stops24h 51mQatar Airways
Thu 9/113:35 amCMB - BWI
2 stops29h 54mQatar Airways
Deal found 7/31$1,217
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Sun 10/261:27 pmBWI - CMB
2 stops26h 58mAmerican Airlines
Wed 10/293:25 amCMB - BWI
2 stops29h 53mAmerican Airlines
Deal found 7/29$1,288
This Gotogate deal was found by Cheapflights users on 7/31. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/144:35 pmDCA - CMB
2 stops34h 40mAir Canada
Sat 9/203:25 amCMB - DCA
2 stops27h 56mAir Canada
Deal found 7/31$1,302
This Gotogate deal was found by Cheapflights users on 7/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/134:35 pmDCA - CMB
3 stops26h 30mMultiple Airlines
Sat 9/202:10 pmCMB - DCA
2 stops28h 19mMultiple Airlines
Deal found 7/30$1,322

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 July 31, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Sri Lanka that are best for you.

Fly from

Washington, D.C.

Fly to

Sri Lanka

Route

Depart

Return

Price

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Wed 1/21

1:30 pm-6:20 am

1 stop30h 20m

Colombo Bandaranaike Intl

Thu 2/26

7:20 am-7:15 pm

1 stop22h 25m

$930

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Tue 9/9

10:05 pm-2:50 am

1 stop19h 15m

Colombo Bandaranaike Intl

Thu 9/25

4:05 am-4:10 pm

1 stop21h 35m

$933

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Wed 8/27

9:00 pm-9:40 am

1 stop27h 10m

Colombo Bandaranaike Intl

Sat 9/13

3:35 am-3:40 pm

1 stop21h 35m

$939

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Wed 8/27

10:05 pm-8:30 am

1 stop24h 55m

Colombo Bandaranaike Intl

Sun 9/14

9:55 pm-11:45 am

2 stops47h 20m

$962

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Tue 9/16

9:00 pm-3:05 am

1 stop20h 35m

Colombo Bandaranaike Intl

Thu 10/2

8:20 pm-8:40 am

1 stop21h 50m

$986

Washington, D.C.Colombo

DCA - CMB

DCACMB

Washington, D.C. Reagan-National

Mon 10/20

5:20 pm-6:15 pm

2 stops39h 25m

Colombo Bandaranaike Intl

Mon 10/27

4:00 pm-2:32 pm

2 stops32h 02m

$997

BaltimoreColombo

BWI - CMB

BWICMB

Baltimore/Washington

Wed 8/27

5:45 am-11:30 pm

2 stops32h 15m

Colombo Bandaranaike Intl

Fri 9/12

5:05 pm-3:25 pm

3 stops31h 50m

$1,020

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Thu 8/28

11:00 am-2:05 am

1 stop29h 35m

Colombo Bandaranaike Intl

Fri 9/12

3:35 am-3:40 pm

1 stop21h 35m

$1,079

Washington, D.C.Colombo

DCA - CMB

DCACMB

Washington, D.C. Reagan-National

Mon 10/20

5:30 pm-2:05 am

2 stops23h 05m

Colombo Bandaranaike Intl

Sun 10/26

3:25 am-7:41 pm

2 stops25h 46m

$1,165

BaltimoreColombo

BWI - CMB

BWICMB

Baltimore/Washington

Thu 9/4

4:44 pm-3:05 am

2 stops24h 51m

Colombo Bandaranaike Intl

Thu 9/11

3:35 am-11:59 pm

2 stops29h 54m

$1,217

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 32 results
1
2
3
4

Best time to book a flight from Washington, D.C. to Sri Lanka

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

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

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to Sri Lanka (average of $1,047). Flying from Washington, D.C. to Sri Lanka in December is currently the most expensive (average of $1,786). 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 WAS to LK?

Find hourly flight availability from Washington, D.C. 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 July 31, 2025.

When flying from Washington, D.C. 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 July 31, 2025.
Get a feel of what it's like to fly with Emirates, Singapore Airlines, and Qatar Airways from Washington, D.C. to Sri Lanka by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very good
3,300 reviews

Comfort

8.0

Overall

8.1

Boarding

8.1

Food

7.9

Crew

8.3

Entertainment

8.2

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
3,300 reviews
Emirates
8.1
Very good
3,300 reviews

Comfort

8.0

Overall

8.1

Boarding

8.1

Food

7.9

Crew

8.3

Entertainment

8.2

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.
Singapore Airlines
8.1
Very good
1,338 reviews
Emirates
8.1
Very good
3,300 reviews

Comfort

8.0

Overall

8.1

Boarding

8.1

Food

7.9

Crew

8.3

Entertainment

8.2

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
3,609 reviews
Emirates
8.1
Very good
3,300 reviews

Comfort

8.0

Overall

8.1

Boarding

8.1

Food

7.9

Crew

8.3

Entertainment

8.2

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
1,230 reviews
Emirates
8.1
Very good
3,300 reviews

Comfort

8.0

Overall

8.1

Boarding

8.1

Food

7.9

Crew

8.3

Entertainment

8.2

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
3,933 reviews
Emirates
8.1
Very good
3,300 reviews

Comfort

8.0

Overall

8.1

Boarding

8.1

Food

7.9

Crew

8.3

Entertainment

8.2

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 Washington, D.C. to Sri Lanka. 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 Washington, D.C. to Sri Lanka one-way?

    $436 is the cheapest one-way deal found within the past few days, from Etihad Airways. You may also be able to find cheap deals on IndiGo and JetBlue, with prices starting from $473 and $477, respectively.

  • What are the most popular routes from Washington, D.C. to Sri Lanka?

    Most travelers choose Washington, D.C. Dulles Intl - Colombo Bandaranaike Intl, Washington, D.C. Reagan-National - Colombo Bandaranaike Intl or Baltimore/Washington - Colombo Bandaranaike Intl when deciding on the best route from Washington, D.C. to Sri Lanka.

  • Can I find deals for flights from Washington, D.C. to Sri Lanka that include hotel bookings?

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

  • How can I find direct flights from Washington, D.C. to Sri Lanka?

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

  • Can I find deals for business class flights from Washington, D.C. to Sri Lanka?

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

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to Sri Lanka (average of $1,047). Flying from Washington, D.C. to Sri Lanka in December is currently the most expensive (average of $1,786). 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

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 Washington, D.C. to Sri Lanka

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

Top 7 airlines flying from Washington, D.C. to Sri Lanka

Discover the top 7 airlines that operate flights from Washington, D.C. 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$750Average$1,045FlexibilityNo cancel feeOn-time75%
Air IndiaCheapest$830Average$1,106FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$877Average$945FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$900Average$1,249FlexibilityNo cancel feeOn-time71%
Qatar AirwaysCheapest$919Average$1,097FlexibilityNo cancel feeOn-time68%
IndiGoCheapest$1,082Average$1,301FlexibilityNo cancel feeOn-time80%
EmiratesCheapest$1,511Average$1,694FlexibilityNo cancel feeOn-time75%

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.