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

IndiGo can get you from Sri Lanka to Washington, D.C. Dulles Intl Airport in just under 31h 45m. Your travel time can differ by up to . Sri Lanka and Washington, D.C. Dulles Intl Airport are separated by a distance of 8928 mi.

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.

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).

What are the most popular airlines that fly from Sri Lanka to Washington, D.C. Dulles Intl Airport?

When booking a flight from Sri Lanka to Washington, D.C. Dulles Intl Airport, you may want to consider flying on American Airlines, Etihad Airways or Qatar Airways as they are the most popular for this route.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Sri Lanka to Washington, D.C. Dulles Intl Airport as you normally would.

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.

$523+ Cheap Flights from Sri Lanka to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Sri Lanka to Dulles Intl

Round-trip from	$873 (Booking.com)
One-way from	$523 (Booking.com)
Popular in	January
Cheapest in	March
Average price	$1,144

From Sri Lanka to Washington, D.C. Dulles Intl

Search Deals

One-way flight from Sri Lanka to Washington, D.C. Dulles Intl

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Highest demand for flights based on searches. 6% potential increase in price ($92 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($56 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 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 September 16, 2025.

Tue 9/306:25 pmCMB - IAD

2 stops31h 20mMultiple Airlines

Tue 10/78:45 pmIAD - CMB

2 stops22h 40mMultiple Airlines

Deal found 9/16

$873

Fri 11/142:40 amCMB - IAD

2 stops27h 55mMultiple Airlines

Sat 11/2210:55 pmIAD - CMB

2 stops43h 35mMultiple Airlines

Deal found 9/15

$908

Wed 11/122:40 amCMB - IAD

2 stops27h 55mMultiple Airlines

Thu 2/510:00 pmIAD - CMB

3 stops33h 55mMultiple Airlines

Deal found 9/13

$921

Sat 11/1510:00 pmCMB - IAD

2 stops31h 45mIndiGo

Sat 11/229:10 pmIAD - CMB

2 stops46h 45mIndiGo

Deal found 9/15

$978

Sat 9/202:55 amCMB - IAD

2 stops46h 50mMultiple Airlines

Sat 9/279:35 amIAD - CMB

3 stops33h 30mMultiple Airlines

Deal found 9/14

$1,064

Best flights from Sri Lanka to Dulles Intl
Discover carefully curated flight deals from Sri Lanka to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 16, 2025.

Thu 11/136:40 pmCMB - IAD

2 stops31h 40mMultiple Airlines

Thu 2/510:00 pmIAD - CMB

3 stops33h 55mMultiple Airlines

Deal found 9/13

$932

Wed 2/410:00 pmCMB - IAD

2 stops31h 45mIndiGo

Thu 2/199:10 pmIAD - CMB

2 stops46h 45mIndiGo

Deal found 9/13

$1,045

Wed 11/124:00 amCMB - IAD

1 stop22h 20mEtihad Airways

Thu 2/59:10 pmIAD - CMB

1 stop19h 10mEtihad Airways

Deal found 9/13

$1,076

Sat 11/156:40 pmCMB - IAD

2 stops32h 30mMultiple Airlines

Sat 11/2210:00 pmIAD - CMB

3 stops33h 55mMultiple Airlines

Deal found 9/15

$1,057

Wed 3/112:40 amCMB - IAD

2 stops48h 30mMultiple Airlines

Wed 5/209:55 amIAD - CMB

2 stops41h 20mMultiple Airlines

Deal found 9/15

$1,059

Mon 9/292:55 amCMB - IAD

2 stops46h 50mMultiple Airlines

Tue 10/79:35 amIAD - CMB

2 stops41h 40mMultiple Airlines

Deal found 9/16

$1,061

Tue 2/32:40 amCMB - IAD

2 stops47h 20mMultiple Airlines

Thu 2/199:00 amIAD - CMB

2 stops41h 00mMultiple Airlines

Deal found 9/13

$1,066

Fri 10/316:55 pmCMB - IAD

2 stops31h 10mMultiple Airlines

Fri 11/710:55 pmIAD - CMB

3 stops33h 00mMultiple Airlines

Deal found 9/16

$1,119

Thu 10/2310:05 amCMB - IAD

2 stops39h 40mMultiple Airlines

Mon 10/279:45 amIAD - CMB

2 stops41h 15mMultiple Airlines

Deal found 9/16

$1,143

Last-minute flights from Sri Lanka to Dulles Intl
Discover last-minute flight deals from Sri Lanka to Dulles Intl. Data last updated September 16, 2025 and is based on user searches.

Thu 9/184:05 amCMB - IAD

1 stop21h 35mEtihad Airways

Sun 12/289:10 pmIAD - CMB

1 stop24h 35mEtihad Airways

Deal found 9/14

$1,143

Fri 9/193:30 amCMB - IAD

3 stops46h 10mMultiple Airlines

Sat 9/279:40 pmIAD - CMB

2 stops25h 35mMultiple Airlines

Deal found 9/14

$1,146

Sat 9/202:55 amCMB - IAD

2 stops46h 50mMultiple Airlines

Sat 9/279:35 amIAD - CMB

3 stops33h 30mMultiple Airlines

Deal found 9/14

$1,064

Sat 9/209:55 pmCMB - IAD

2 stops47h 20mIndiGo

Sat 9/271:30 pmIAD - CMB

2 stops33h 45mIndiGo

Deal found 9/14

$1,121

Sat 9/204:30 pmCMB - IAD

1 stop33h 10mEtihad Airways

Sat 9/2710:05 pmIAD - CMB

1 stop31h 50mEtihad Airways

Deal found 9/14

$1,129

Tue 9/306:25 pmCMB - IAD

2 stops31h 20mMultiple Airlines

Tue 10/78:45 pmIAD - CMB

2 stops22h 40mMultiple Airlines

Deal found 9/16

$873

Wed 10/2212:35 amCMB - IAD

2 stops22h 25mMultiple Airlines

Mon 10/2711:00 pmIAD - CMB

3 stops33h 55mMultiple Airlines

Deal found 9/16

$1,089

Fri 10/316:55 pmCMB - IAD

2 stops31h 10mMultiple Airlines

Fri 11/710:55 pmIAD - CMB

3 stops33h 00mMultiple Airlines

Deal found 9/16

$1,119

One-way flights from Sri Lanka to Dulles Intl
Search for one-way flight options from Sri Lanka to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 16, 2025.

Sat 11/1510:00 pmCMB - IAD

2 stops31h 45mIndiGo

Deal found 9/13

$523

Fri 10/39:55 pmCMB - IAD

2 stops47h 20mIndiGo

Deal found 9/14

$532

Fri 10/35:05 pmCMB - IAD

3 stops34h 54mMultiple Airlines

Deal found 9/14

$579

Fri 11/144:50 amCMB - IAD

2 stops45h 35mMultiple Airlines

Deal found 9/13

$675

Sun 12/710:25 amCMB - IAD

3 stops54h 20mMultiple Airlines

Deal found 9/13

$715

Sat 11/154:00 amCMB - IAD

1 stop22h 20mEtihad Airways

Deal found 9/15

$741

Thu 10/23:35 amCMB - IAD

1 stop21h 35mQatar Airways

Deal found 9/14

$786

Sun 11/1610:25 pmCMB - IAD

2 stops54h 35mAir China

Deal found 9/14

$832

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Thu 11/13

6:40 pm-3:50 pm

2 stops31h 40m

Washington, D.C. Dulles Intl

Thu 2/5

10:00 pm-6:25 pm

3 stops33h 55m

$932

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Wed 2/4

10:00 pm-7:15 pm

2 stops31h 45m

Washington, D.C. Dulles Intl

Thu 2/19

9:10 pm-6:25 am

2 stops46h 45m

$1,045

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Sat 11/15

6:40 pm-4:40 pm

2 stops32h 30m

Washington, D.C. Dulles Intl

Sat 11/22

10:00 pm-6:25 pm

3 stops33h 55m

$1,057

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Wed 3/11

2:40 am-5:40 pm

2 stops48h 30m

Washington, D.C. Dulles Intl

Wed 5/20

9:55 am-12:45 pm

2 stops41h 20m

$1,059

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Mon 9/29

2:55 am-4:15 pm

2 stops46h 50m

Washington, D.C. Dulles Intl

Tue 10/7

9:35 am-12:45 pm

2 stops41h 40m

$1,061

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Tue 2/3

2:40 am-3:30 pm

2 stops47h 20m

Washington, D.C. Dulles Intl

Thu 2/19

9:00 am-12:30 pm

2 stops41h 00m

$1,066

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Wed 11/12

4:00 am-3:50 pm

1 stop22h 20m

Washington, D.C. Dulles Intl

Thu 2/5

9:10 pm-2:50 am

1 stop19h 10m

$1,076

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Fri 10/31

6:55 pm-4:35 pm

2 stops31h 10m

Washington, D.C. Dulles Intl

Fri 11/7

10:55 pm-6:25 pm

3 stops33h 00m

$1,119

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Thu 10/23

10:05 am-4:15 pm

2 stops39h 40m

Washington, D.C. Dulles Intl

Mon 10/27

9:45 am-12:30 pm

2 stops41h 15m

$1,143

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Sat 11/15

10:00 pm-7:15 pm

2 stops31h 45m

$523

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 16 results

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 $292). Flying from Sri Lanka to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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.

Reviews of airlines servicing Dulles Intl

Get a feel of what it's like to fly with Qatar Airways, Etihad Airways, and American Airlines from Sri Lanka to Washington, D.C. Dulles Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Qatar Airways

7.4

Good

3,624 reviews

Reviews

1 / 20

6.0

Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.

Qatar Airways

7.4

Good

3,624 reviews

Qatar Airways

7.4

Good

3,624 reviews

Reviews

1 / 20

6.0

Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.

Etihad Airways

7.4

Good

1,250 reviews

Qatar Airways

7.4

Good

3,624 reviews

Reviews

1 / 20

6.0

Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.

American Airlines

7.2

Good

10,000 reviews

Qatar Airways

7.4

Good

3,624 reviews

Reviews

1 / 20

6.0

Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.

Related info for your journey

How long is the flight from Sri Lanka to Washington, D.C. Dulles Intl Airport?
IndiGo can get you from Sri Lanka to Washington, D.C. Dulles Intl Airport in just under 31h 45m. Your travel time can differ by up to . Sri Lanka and Washington, D.C. Dulles Intl Airport are separated by a distance of 8928 mi.
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 $292). Flying from Sri Lanka to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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

Woodbridge

Arlington

Alexandria

Tysons

Silver Spring

Springfield

Gaithersburg

Fredericksburg

Linthicum Heights

Fairfax

Falls Church

Owings Mills

Manassas

Rockville

Hanover

Oxon Hill

Laurel

Towson

National Harbor

Dundalk

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Sri Lanka to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Qatar Airways	Cheapest$929	Average$1,335	FlexibilityNo cancel fee	On-time68%
Etihad Airways	Cheapest$942	Average$1,250	FlexibilityNo cancel fee	On-time75%
American Airlines	Cheapest$1,267	Average$1,357	FlexibilityNo cancel fee	On-time71%

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$523+ 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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Sri Lanka to Dulles Intl with Cheapflights

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3. Compare prices and book

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 September 16, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Sri Lanka to Dulles Intl

Cheapest flights from Sri Lanka to Dulles IntlExplore 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 September 16, 2025.

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 September 16, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Sri Lanka to Washington, D.C. Dulles Intl Airport that are best for you.

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.

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?

Reviews of airlines servicing Dulles Intl

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.

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

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

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

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

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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

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.

Top 3 airlines flying from Sri Lanka to Dulles Intl

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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 September 16, 2025.