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$505+ 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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — CMB
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
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 April 17, 2025.

Round-trip from

$770
(oojo)

One-way from

$505
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$969
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. 9% potential increase in price ($125 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($59 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 17, 2025.

This oojo deal was found by Cheapflights users on 4/17. 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 4/2310:05 pmIAD - CMB
1 stop19h 15mEtihad Airways
Fri 5/164:30 pmCMB - IAD
1 stop33h 10mEtihad Airways
Deal found 4/17$770
This oojo deal was found by Cheapflights users on 4/17. 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 11/178:05 pmIAD - CMB
1 stop20h 10mQatar Airways
Tue 12/163:25 amCMB - IAD
1 stop23h 00mQatar Airways
Deal found 4/17$838
This American Airlines deal was found by Cheapflights users on 4/17. 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.
Mon 11/38:05 pmIAD - CMB
1 stop20h 10mAmerican Airlines
Sat 11/297:15 pmCMB - IAD
1 stop31h 10mAmerican Airlines
Deal found 4/17$901
This oojo deal was found by Cheapflights users on 4/17. 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.
Sat 4/261:30 pmIAD - CMB
1 stop30h 15mTurkish Airlines
Fri 5/26:45 amCMB - IAD
1 stop38h 30mTurkish Airlines
Deal found 4/17$1,004
This oojo deal was found by Cheapflights users on 4/17. 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 4/2311:00 amIAD - CMB
2 stops26h 25mMultiple Airlines
Fri 5/168:20 pmCMB - IAD
1 stop21h 50mMultiple Airlines
Deal found 4/17$1,039
This FlightHub deal was found by Cheapflights users on 4/17. 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 8/268:07 pmIAD - CMB
2 stops41h 58mSingapore Airlines
Tue 9/911:05 amCMB - IAD
2 stops38h 24mSingapore Airlines
Deal found 4/17$1,217
This JetBlue deal was found by Cheapflights users on 4/17. 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.
Sun 4/2011:00 amIAD - CMB
1 stop20h 20mJetBlue
Fri 4/253:35 amCMB - IAD
1 stop21h 35mJetBlue
Deal found 4/17$1,257
This oojo deal was found by Cheapflights users on 4/17. 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 10/2010:55 amIAD - CMB
2 stops22h 05mEmirates
Wed 11/1210:30 amCMB - IAD
2 stops32h 10mEmirates
Deal found 4/17$1,375
This Air Canada deal was found by Cheapflights users on 4/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/163:27 pmIAD - CMB
2 stops31h 38mAir Canada
Fri 5/3010:05 amCMB - IAD
2 stops37h 06mAir Canada
Deal found 4/17$1,399

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 April 17, 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

Thu 5/1

10:05 pm-2:50 am

1 stop19h 15m

Colombo Bandaranaike Intl

Thu 5/22

9:50 am-4:10 pm

1 stop39h 50m

$770

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Wed 10/1

11:00 am-4:50 pm

1 stop20h 20m

Colombo Bandaranaike Intl

Sun 11/16

10:15 am-3:55 pm

1 stop40h 10m

$841

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Thu 5/1

10:05 pm-2:50 am

1 stop19h 15m

Colombo Bandaranaike Intl

Thu 5/22

2:10 pm-4:10 pm

2 stops35h 30m

$1,090

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Sun 6/1

1:30 pm-5:15 am

1 stop30h 15m

Colombo Bandaranaike Intl

Sun 6/8

6:45 am-11:45 am

1 stop38h 30m

$1,207

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Tue 8/26

8:07 pm-11:35 pm

2 stops41h 58m

Colombo Bandaranaike Intl

Mon 9/8

12:50 am-3:59 pm

2 stops48h 39m

$1,217

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Fri 5/16

3:27 pm-8:35 am

2 stops31h 38m

Colombo Bandaranaike Intl

Fri 5/30

10:05 am-1:41 pm

2 stops37h 06m

$1,399

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Thu 8/28

10:55 am-6:30 pm

2 stops22h 05m

Colombo Bandaranaike Intl

Wed 9/10

10:30 am-8:40 am

2 stops31h 40m

$1,425

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Wed 6/25

11:00 am-4:50 pm

1 stop20h 20m

Colombo Bandaranaike Intl

Thu 7/24

3:35 am-3:40 pm

1 stop21h 35m

$1,453

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Thu 9/4

10:05 pm-7:20 am

2 stops23h 45m

$505

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Fri 6/6

11:00 am-4:05 pm

1 stop19h 35m

$883

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 13 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 $1,049). 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 April 17, 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 April 17, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Sri Lanka, such as Singapore Airlines, Emirates and Qatar Airways. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very good
1,288 reviews

Overall

8.1

Food

7.7

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Singapore Airlines
8.1
Very good
1,288 reviews
Singapore Airlines
8.1
Very good
1,288 reviews

Overall

8.1

Food

7.7

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Emirates
8.0
Very good
3,200 reviews
Singapore Airlines
8.1
Very good
1,288 reviews

Overall

8.1

Food

7.7

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Qatar Airways
7.4
Good
3,554 reviews
Singapore Airlines
8.1
Very good
1,288 reviews

Overall

8.1

Food

7.7

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Etihad Airways
7.4
Good
1,194 reviews
Singapore Airlines
8.1
Very good
1,288 reviews

Overall

8.1

Food

7.7

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Turkish Airlines
7.3
Good
3,767 reviews
Singapore Airlines
8.1
Very good
1,288 reviews

Overall

8.1

Food

7.7

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

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 Air India ($883), Etihad Airways ($919), and Turkish Airlines ($3,120).

  • 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

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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.
Dulles Intl to Haneda flights
Dulles Intl to Narita flights
Reagan-National to Narita flights
Dulles Intl to Incheon Intl flights
Reagan-National to Haneda flights
Baltimore to Narita flights
Baltimore to Haneda flights
Dulles Intl to Suvarnabhumi flights
Dulles Intl to Taiwan Taoyuan Intl flights
Baltimore to Suvarnabhumi flights
Dulles Intl to Hyderabad flights
Reagan-National to Suvarnabhumi flights
Dulles Intl to Manila flights
Dulles Intl to Hongqiao Intl flights
Reagan-National to Incheon Intl flights
Reagan-National to Hyderabad flights
Baltimore to Hyderabad flights
Baltimore to Incheon Intl flights
Dulles Intl to Ho Chi Minh City flights
Dulles Intl to Bangalore flights
Dulles Intl to New Delhi flights
Dulles Intl to Capital flights
Dulles Intl to Gimpo Intl flights
Reagan-National to Taiwan Taoyuan Intl flights
Reagan-National to Hongqiao Intl flights
Dulles Intl to Mumbai flights
Reagan-National to Bangalore flights
Baltimore to Bangalore flights
Baltimore to Taiwan Taoyuan Intl flights
Reagan-National to New Delhi flights
Reagan-National to Manila flights
Baltimore to Manila flights
Dulles Intl to Denpasar flights
Reagan-National to Capital flights
Baltimore to Capital flights
Dulles Intl to Pu Dong flights
Dulles Intl to Islamabad flights
Dulles Intl to Sung Shan flights
Dulles Intl to Chennai flights
Baltimore to New Delhi flights
Reagan-National to Gimpo Intl flights
Reagan-National to Denpasar flights
Dulles Intl to Lahore flights
Baltimore to Denpasar flights
Baltimore to Mumbai flights
Baltimore to Hongqiao Intl flights
Reagan-National to Mumbai flights
Reagan-National to Ho Chi Minh City flights
Baltimore to Pu Dong 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$748Average$1,137FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$910Average$957FlexibilityNo cancel feeOn-time77%
Qatar AirwaysCheapest$932Average$1,163FlexibilityNo cancel feeOn-time68%
American AirlinesCheapest$1,043Average$1,451FlexibilityNo cancel feeOn-time71%
EmiratesCheapest$1,386Average$1,865FlexibilityNo cancel feeOn-time75%

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