HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sri Lanka

$408+ 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 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — CMB
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl 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 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 March 31, 2025.

Round-trip from

$768
(oojo)

One-way from

$408
(oojo)

Popular in

December

Cheapest in

February

Average price

$956
From Washington, D.C. Dulles Intl to Sri Lanka
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Sri Lanka
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($99 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($54 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

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 March 31, 2025.

This oojo deal was found by Cheapflights users on 3/30. 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.
Sun 4/1310:05 pmIAD - CMB
1 stop19h 15mEtihad Airways
Tue 4/224:05 amCMB - IAD
1 stop21h 35mEtihad Airways
Deal found 3/30$768
This FlightHub deal was found by Cheapflights users on 3/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/178:05 pmIAD - CMB
1 stop20h 10mQatar Airways
Tue 12/164:15 amCMB - IAD
1 stop22h 10mQatar Airways
Deal found 3/30$853
This Gotogate deal was found by Cheapflights users on 3/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/141:30 pmIAD - CMB
1 stop30h 15mTurkish Airlines
Wed 5/216:45 amCMB - IAD
1 stop22h 30mTurkish Airlines
Deal found 3/29$961
This JetBlue Airways deal was found by Cheapflights users on 3/30. 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 Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/169:00 pmIAD - CMB
1 stop34h 20mMultiple Airlines
Wed 4/2310:30 amCMB - IAD
1 stop38h 40mMultiple Airlines
Deal found 3/30$1,028
This Booking.com deal was found by Cheapflights users on 3/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/61:30 pmIAD - CMB
2 stops36h 50mIndiGo
Thu 7/1712:50 pmCMB - IAD
2 stops40h 25mIndiGo
Deal found 3/30$1,163
This JetBlue deal was found by Cheapflights users on 3/30. 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 4/159:00 pmIAD - CMB
1 stop20h 35mJetBlue
Wed 4/233:35 amCMB - IAD
1 stop21h 35mJetBlue
Deal found 3/30$1,201
This American Airlines deal was found by Cheapflights users on 3/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/159:00 pmIAD - CMB
1 stop20h 35mAmerican Airlines
Mon 4/213:35 amCMB - IAD
1 stop38h 35mAmerican Airlines
Deal found 3/30$1,261
This Justfly.com deal was found by Cheapflights users on 3/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/146:55 pmIAD - CMB
2 stops42h 05mSingapore Airlines
Fri 12/512:45 amCMB - IAD
2 stops27h 40mSingapore Airlines
Deal found 3/30$1,267
This Alaska Airlines deal was found by Cheapflights users on 3/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/99:00 pmIAD - CMB
1 stop34h 20mAlaska Airlines
Wed 4/233:35 amCMB - IAD
1 stop21h 35mAlaska Airlines
Deal found 3/30$1,355

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 March 31, 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

Sun 4/13

10:05 pm-2:50 am

1 stop19h 15m

Colombo Bandaranaike Intl

Tue 4/22

4:05 am-4:10 pm

1 stop21h 35m

$768

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Sat 9/27

9:00 pm-9:00 am

1 stop26h 30m

Colombo Bandaranaike Intl

Sat 10/25

8:20 pm-4:55 pm

1 stop30h 05m

$914

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Wed 5/14

1:30 pm-5:15 am

1 stop30h 15m

Colombo Bandaranaike Intl

Wed 5/21

6:45 am-7:45 pm

1 stop22h 30m

$961

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Wed 4/16

9:00 pm-4:50 pm

1 stop34h 20m

Colombo Bandaranaike Intl

Wed 4/23

10:30 am-3:40 pm

1 stop38h 40m

$1,028

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Tue 5/6

1:30 pm-11:50 am

2 stops36h 50m

Colombo Bandaranaike Intl

Thu 7/17

12:50 pm-7:45 pm

2 stops40h 25m

$1,163

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Tue 4/15

9:00 pm-3:05 am

1 stop20h 35m

Colombo Bandaranaike Intl

Wed 4/23

3:35 am-3:40 pm

1 stop21h 35m

$1,201

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Tue 4/15

9:00 pm-3:05 am

1 stop20h 35m

Colombo Bandaranaike Intl

Mon 4/21

3:35 am-8:40 am

1 stop38h 35m

$1,261

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Fri 5/16

2:25 pm-8:35 am

2 stops32h 40m

Colombo Bandaranaike Intl

Sun 6/8

10:05 am-1:41 pm

2 stops37h 06m

$1,398

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Sat 8/9

7:59 pm-11:35 pm

2 stops42h 06m

Colombo Bandaranaike Intl

Sat 8/23

12:50 am-3:59 pm

2 stops48h 39m

$1,400

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Wed 4/16

10:05 pm-8:30 am

1 stop24h 55m

$408

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 12 results
1
2

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 $1,049). Flying from Washington, D.C. Dulles Intl Airport to Sri Lanka in December is currently the most expensive (average of $1,850). 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 March 31, 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.

Rainfall in Sri Lanka by month

Plan your trip to Sri Lanka by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sri Lanka ranges from 2.4 - 13.8 inches per month. October is typically the wettest month, when rainfall can reach 13.8 in. February is typically the driest time to visit Sri Lanka when rainfall is around 2.4 in.

Temperature in Sri Lanka by month

Plan your trip to Sri Lanka by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sri Lanka, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 80.6 F).

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 March 31, 2025.
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,818 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Emirates
8.0
Very good
3,192 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Qatar Airways
7.4
Good
3,541 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Etihad Airways
7.4
Good
1,181 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
JetBlue
7.3
Good
2,924 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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.

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

    The cheapest airlines for a one-way flight from Washington, D.C. Dulles Intl Airport to Sri Lanka are Etihad Airways ($408), Air Canada ($1,255), and Turkish Airlines ($3,710).

  • 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 $1,049). Flying from Washington, D.C. Dulles Intl Airport to Sri Lanka in December is currently the most expensive (average of $1,850). 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 Dulles Intl 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 Narita flights
Reagan-National to Narita flights
Reagan-National to Haneda flights
Dulles Intl to Incheon Intl flights
Baltimore to Haneda flights
Baltimore to Narita flights
Dulles Intl to Suvarnabhumi flights
Baltimore to Suvarnabhumi flights
Reagan-National to Suvarnabhumi flights
Dulles Intl to Taiwan Taoyuan Intl flights
Dulles Intl to Hyderabad flights
Dulles Intl to Manila flights
Dulles Intl to Ho Chi Minh City flights
Reagan-National to Incheon Intl flights
Reagan-National to New Delhi flights
Reagan-National to Hyderabad flights
Dulles Intl to New Delhi flights
Baltimore to Hyderabad flights
Reagan-National to Taiwan Taoyuan Intl flights
Dulles Intl to Hongqiao Intl flights
Baltimore to Taiwan Taoyuan Intl flights
Baltimore to Incheon Intl flights
Reagan-National to Manila flights
Dulles Intl to Gimpo Intl flights
Baltimore to Manila flights
Dulles Intl to Mumbai flights
Dulles Intl to Capital flights
Dulles Intl to Bangalore flights
Dulles Intl to Denpasar flights
Baltimore to New Delhi flights
Dulles Intl to Sung Shan flights
Baltimore to Mumbai flights
Dulles Intl to Pu Dong flights
Reagan-National to Mumbai flights
Reagan-National to Hongqiao Intl flights
Reagan-National to Denpasar flights
Baltimore to Denpasar flights
Reagan-National to Gimpo Intl flights
Baltimore to Ho Chi Minh City flights
Dulles Intl to Lahore flights
Reagan-National to Capital flights
Dulles Intl to Islamabad flights
Reagan-National to Bangalore flights
Baltimore to Gimpo Intl flights
Reagan-National to Ho Chi Minh City flights
Baltimore to Bangalore flights
Dulles Intl to Chennai flights
Baltimore to Capital flights
Dulles Intl to Kathmandu flights

Top 5 airlines flying from Dulles Intl to Sri Lanka

Discover the top 5 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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$748Average$1,153FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$910Average$959FlexibilityNo cancel feeOn-time77%
Qatar AirwaysCheapest$934Average$1,161FlexibilityNo cancel feeOn-time68%
American AirlinesCheapest$1,043Average$1,473FlexibilityNo cancel feeOn-time71%
EmiratesCheapest$1,386Average$1,869FlexibilityNo 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.