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Dulles Intl

$594+ Cheap flights from Bandaranaike Intl (CMB) 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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
CMB — IAD
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheap flight deals from Colombo to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Colombo (CMB) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,100
(SmartFares)

One-way from

$594
(Kiwi.com)

Popular in

July

Cheapest in

December

Average price

$1,267
Provider with most accurate pricing for Colombo Bandaranaike Intl-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Colombo Bandaranaike Intl-Washington, D.C. Dulles Intl flights.
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From Colombo Bandaranaike Intl to Washington, D.C. Dulles Intl
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One-way flight from Colombo Bandaranaike Intl to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 15% potential increase in price ($243 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($30 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 Colombo to Dulles Intl

Cheapest flights from Colombo to Dulles Intl
Explore the most affordable flight options available from Colombo to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This SmartFares 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/126:25 pmCMB - IAD
2 stops30h 55mMultiple Airlines
Wed 7/308:45 pmIAD - CMB
2 stops47h 25mMultiple Airlines
Deal found 4/17$1,100
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.
Thu 7/101:05 pmCMB - IAD
2 stops54h 02mAir Canada
Mon 7/285:31 pmIAD - CMB
2 stops50h 04mAir Canada
Deal found 4/17$1,186
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.
Tue 6/178:20 pmCMB - IAD
1 stop21h 50mAmerican Airlines
Tue 7/299:00 pmIAD - CMB
1 stop27h 10mAmerican Airlines
Deal found 4/17$1,367
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/134:05 amCMB - IAD
1 stop21h 35mEtihad Airways
Wed 7/3010:05 pmIAD - CMB
1 stop24h 55mEtihad Airways
Deal found 4/17$1,496
This Air France 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1312:50 pmCMB - IAD
2 stops39h 55mAir France
Tue 7/296:30 pmIAD - CMB
2 stops31h 50mAir France
Deal found 4/17$1,565
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.
Mon 7/148:20 amCMB - IAD
1 stop32h 50mAir India
Tue 7/2911:00 amIAD - CMB
1 stop21h 45mAir India
Deal found 4/17$1,616
This Singapore 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2912:50 amCMB - IAD
3 stops48h 54mSingapore Airlines
Mon 7/77:59 pmIAD - CMB
2 stops42h 06mSingapore Airlines
Deal found 4/17$1,691
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 6/103:35 amCMB - IAD
1 stop21h 35mQatar Airways
Wed 7/3011:00 amIAD - CMB
1 stop20h 20mQatar Airways
Deal found 4/17$1,721
This Emirates 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1110:30 amCMB - IAD
2 stops31h 40mEmirates
Wed 7/303:39 pmIAD - CMB
3 stops41h 21mEmirates
Deal found 4/17$1,733
This Gulf Air 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 Gulf Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/95:25 pmCMB - IAD
3 stops56h 15mGulf Air
Wed 7/3010:05 pmIAD - CMB
3 stops49h 55mGulf Air
Deal found 4/17$2,279
This Cathay Pacific 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1312:50 amCMB - IAD
2 stops39h 30mCathay Pacific
Sat 8/26:44 pmIAD - CMB
2 stops43h 16mCathay Pacific
Deal found 4/17$2,436
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.
Fri 5/166:45 amCMB - IAD
1 stop22h 30mTurkish Airlines
Thu 11/209:25 pmIAD - CMB
1 stop22h 00mTurkish Airlines
Deal found 4/17$4,457

Cheapflights Fare Finder

Customize your flight search to find flights from Colombo to Dulles Intl 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 Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Colombo

Fly to

Dulles Intl

Route

Depart

Return

Price

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Thu 6/12

6:25 pm-3:50 pm

2 stops30h 55m

Washington, D.C. Dulles Intl

Wed 7/30

8:45 pm-5:40 am

2 stops47h 25m

$1,100

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Thu 7/10

1:05 pm-9:37 am

2 stops54h 02m

Washington, D.C. Dulles Intl

Mon 7/28

5:31 pm-5:05 am

2 stops50h 04m

$1,186

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Tue 6/17

8:20 pm-8:40 am

1 stop21h 50m

Washington, D.C. Dulles Intl

Tue 7/29

9:00 pm-9:40 am

1 stop27h 10m

$1,367

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Sun 7/13

4:05 am-4:10 pm

1 stop21h 35m

Washington, D.C. Dulles Intl

Wed 7/30

10:05 pm-8:30 am

1 stop24h 55m

$1,496

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Sun 7/13

12:50 pm-7:15 pm

2 stops39h 55m

Washington, D.C. Dulles Intl

Tue 7/29

6:30 pm-11:50 am

2 stops31h 50m

$1,565

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Mon 7/14

8:20 am-7:40 am

1 stop32h 50m

Washington, D.C. Dulles Intl

Tue 7/29

11:00 am-6:15 pm

1 stop21h 45m

$1,616

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Thu 5/29

12:50 am-4:14 pm

3 stops48h 54m

Washington, D.C. Dulles Intl

Mon 7/7

7:59 pm-11:35 pm

2 stops42h 06m

$1,691

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Tue 6/10

3:35 am-3:40 pm

1 stop21h 35m

Washington, D.C. Dulles Intl

Wed 7/30

11:00 am-4:50 pm

1 stop20h 20m

$1,721

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Wed 6/11

10:30 am-8:40 am

2 stops31h 40m

Washington, D.C. Dulles Intl

Wed 7/30

3:39 pm-6:30 pm

3 stops41h 21m

$1,733

ColomboWashington, D.C.

CMB - IAD

CMBIAD

Colombo Bandaranaike Intl

Mon 6/9

5:25 pm-4:10 pm

3 stops56h 15m

Washington, D.C. Dulles Intl

Wed 7/30

10:05 pm-9:30 am

3 stops49h 55m

$2,279

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 20 results
1
2

Compare providers for flights from Colombo to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Colombo to Dulles Intl in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Colombo Bandaranaike Intl Airport-Washington, D.C. Dulles Intl Airport flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Colombo Bandaranaike Intl Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Colombo Bandaranaike Intl Airport-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Colombo Bandaranaike Intl Airport-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Colombo Bandaranaike Intl Airport-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Colombo to Dulles Intl

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

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

Currently, August is the cheapest month in which you can book a flight from Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $383). 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.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

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.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated April 17, 2025.
Peruse reviews from past customers who have flown with Korean Air, Singapore Airlines and Emirates from Colombo to Washington, D.C. to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,064 reviews

Boarding

8.5

Overall

8.4

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Korean Air
8.4
Very good
1,064 reviews
Korean Air
8.4
Very good
1,064 reviews

Boarding

8.5

Overall

8.4

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Singapore Airlines
8.1
Very good
1,288 reviews
Korean Air
8.4
Very good
1,064 reviews

Boarding

8.5

Overall

8.4

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Emirates
8.0
Very good
3,200 reviews
Korean Air
8.4
Very good
1,064 reviews

Boarding

8.5

Overall

8.4

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Air France
7.5
Good
1,435 reviews
Korean Air
8.4
Very good
1,064 reviews

Boarding

8.5

Overall

8.4

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Cathay Pacific
7.5
Good
849 reviews
Korean Air
8.4
Very good
1,064 reviews

Boarding

8.5

Overall

8.4

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Related info for your journey

Find useful and relevant information for your journey from Colombo to Dulles Intl. 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 flying from Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport round-trip?

    Air Canada, at $1,186, was found to be the cheapest airline from Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport.Alternate airlines to your destination round-trip include American Airlines and Etihad Airways. Air Canada is priced at 8% lower than the current average price of a flight leaving 3 months from now.

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

    For one-way options, check prices for Turkish Airlines. According to our data, you can fly for as low as $824. Users have also found prices from $839 and $962 on Etihad Airways and American Airlines, respectively.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $383). 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

Traveling to a place near Colombo Bandaranaike Intl Airport?

Book flights to Colombo Bandaranaike Intl Airport if you plan to visit one of these locations
Arlington
Alexandria
Fairfax
Tysons
Springfield
Woodbridge
Rockville
Fredericksburg
Gaithersburg
Silver Spring
Linthicum Heights
Falls Church
Laurel
Easton
Herndon
Sterling
Bowie
Gettysburg
National Harbor
Oxon Hill

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Alternative routes for Colombo to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Colombo to Reagan-National flights
Colombo to Baltimore flights

Top 3 airlines flying from Colombo to Dulles Intl

Discover the top 3 airlines that operate flights from Colombo to Dulles Intl. 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$805Average$1,176FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$929Average$1,316FlexibilityNo cancel feeOn-time68%
Turkish AirlinesCheapest$1,302Average$1,366FlexibilityNo cancel feeOn-time77%

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