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Dulles Intl

$653+ 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
CMB — IAD
Sep 14 — Sep 211
Mon 9/14
Mon 9/21
1 adult, Economy
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Cheap 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 August 15, 2026.

This Gotogate deal was found by Cheapflights users on 8/13. 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 11/11:50 pm -
2 stops37h 40m
Mon 2/19:55 am -
2 stops36h 25m
Deal found 8/13$917
This Booking.com deal was found by Cheapflights users on 8/13. 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.
Sun 11/11:50 pm -
2 stops37h 40m
Mon 1/259:55 am -
2 stops36h 25m
Deal found 8/13$949
This oojo deal was found by Cheapflights users on 8/14. 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 9/134:10 am -
1 stop39h 05m
Sun 9/203:10 pm -
1 stop26h 20m
Deal found 8/14$1,016
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/19:35 pm -
1 stop22h 00m
Mon 2/12:35 pm -
1 stop19h 10m
Deal found 8/13$1,032
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/239:50 pm -
1 stop21h 25m
Fri 1/292:35 pm -
1 stop19h 10m
Deal found 8/13$1,037
This Etihad Airways deal was found by Cheapflights users on 8/14. 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.
Thu 9/104:20 pm -
1 stop26h 55m
Sat 11/282:35 pm -
1 stop19h 10m
Deal found 8/14$1,049
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/99:50 pm -
1 stop21h 25m
Tue 10/203:10 pm -
1 stop19h 55m
Deal found 8/14$1,056
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/99:50 pm -
1 stop21h 25m
Sun 10/253:35 pm -
1 stop19h 10m
Deal found 8/14$1,106
This Etihad Airways deal was found by Cheapflights users on 8/14. 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.
Thu 9/104:10 am -
1 stop39h 05m
Thu 10/223:10 pm -
1 stop19h 55m
Deal found 8/14$1,119
This Mytrip deal was found by Cheapflights users on 8/15. 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.
Tue 9/2911:30 am -
2 stops31h 45m
Tue 10/63:10 pm -
1 stop31h 55m
Deal found 8/15$1,138
This Etihad Airways deal was found by Cheapflights users on 8/13. 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 9/19:50 pm -
1 stop21h 25m
Tue 11/242:35 pm -
1 stop25h 45m
Deal found 8/13$1,140
This Qatar Airways deal was found by Cheapflights users on 8/15. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/410:30 am -
1 stop38h 40m
Fri 9/119:00 pm -
1 stop26h 30m
Deal found 8/15$1,143

Find 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 August 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$917
(Gotogate)

One-way from

$653
(Mytrip)

Popular in

December

Cheapest in

February

Average price

$1,555
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
Search Deals
One-way flight from Colombo Bandaranaike Intl to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($159 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

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 August 15, 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ColomboWashington, D.C.

CMB Colombo Bandaranaike Intl - IAD Washington, D.C. Dulles Intl

CMBIAD

Colombo Bandaranaike Intl

Thu 9/3

10:00 am-9:45 am

1 stop33h 15m

Washington, D.C. Dulles Intl

Sun 2/14

2:35 pm-8:10 am

1 stop31h 05m

$1,158

ColomboWashington, D.C.

CMB Colombo Bandaranaike Intl - IAD Washington, D.C. Dulles Intl

CMBIAD

Colombo Bandaranaike Intl

Sat 9/5

4:20 pm-9:45 am

1 stop26h 55m

Washington, D.C. Dulles Intl

Sat 2/20

2:35 pm-2:50 am

1 stop25h 45m

$1,176
Quickest round-trip

ColomboWashington, D.C.

CMB Colombo Bandaranaike Intl - IAD Washington, D.C. Dulles Intl

CMBIAD

Colombo Bandaranaike Intl

Sun 11/1

9:35 pm-9:05 am

1 stop22h 00m

Washington, D.C. Dulles Intl

Mon 2/1

11:34 am-8:15 pm

2 stops22h 11m

$1,253

ColomboWashington, D.C.

CMB Colombo Bandaranaike Intl - IAD Washington, D.C. Dulles Intl

CMBIAD

Colombo Bandaranaike Intl

Sun 11/1

9:35 pm-9:05 am

1 stop22h 00m

Washington, D.C. Dulles Intl

Mon 1/25

11:34 am-8:15 pm

2 stops22h 11m

$1,301

ColomboWashington, D.C.

CMB Colombo Bandaranaike Intl - IAD Washington, D.C. Dulles Intl

CMBIAD

Colombo Bandaranaike Intl

Thu 9/3

10:00 am-9:45 am

1 stop33h 15m

Washington, D.C. Dulles Intl

Sun 2/14

9:15 am-8:15 pm

2 stops24h 30m

$1,362

ColomboWashington, D.C.

CMB Colombo Bandaranaike Intl - IAD Washington, D.C. Dulles Intl

CMBIAD

Colombo Bandaranaike Intl

Sat 9/5

9:50 pm-9:45 am

1 stop21h 25m

Washington, D.C. Dulles Intl

Sat 2/20

6:33 am-8:15 pm

2 stops27h 12m

$1,380

ColomboWashington, D.C.

CMB Colombo Bandaranaike Intl - IAD Washington, D.C. Dulles Intl

CMBIAD

Colombo Bandaranaike Intl

Mon 8/31

10:30 am-8:45 am

1 stop31h 45m

Washington, D.C. Dulles Intl

Sun 2/14

8:05 pm-2:45 am

1 stop20h 10m

$1,409

ColomboWashington, D.C.

CMB Colombo Bandaranaike Intl - IAD Washington, D.C. Dulles Intl

CMBIAD

Colombo Bandaranaike Intl

Wed 9/2

9:45 am-8:45 am

3 stops32h 30m

Washington, D.C. Dulles Intl

Sun 2/14

11:20 am-9:40 am

3 stops35h 50m

$1,543

ColomboWashington, D.C.

CMB Colombo Bandaranaike Intl - IAD Washington, D.C. Dulles Intl

CMBIAD

Colombo Bandaranaike Intl

Fri 8/28

4:10 am-9:45 am

1 stop39h 05m

Washington, D.C. Dulles Intl

Wed 10/21

3:10 pm-3:00 am

1 stop26h 20m

$1,605

ColomboWashington, D.C.

CMB Colombo Bandaranaike Intl - IAD Washington, D.C. Dulles Intl

CMBIAD

Colombo Bandaranaike Intl

Fri 10/23

11:15 am-10:52 pm

3 stops45h 07m

Washington, D.C. Dulles Intl

Fri 1/29

3:30 pm-6:25 pm

3 stops40h 25m

$1,724

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 21 resultsSorted by cheapest first
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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 August.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Colombo Bandaranaike Intl Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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

How much does it cost to fly round-trip from Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport?

Airfare is below average for this route at the moment.

Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport flights typically cost between $1,534 and $1,593 in November.
The cheapest round-trip price found within the last 5 days was $917 on Multiple Airlines (Nov 1-Feb 1).

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 August 15, 2026.
Read through reviews of airlines operating flights from Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport, such as Qatar Airways and Etihad Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Qatar Airways
7.4
Good
3,738 reviews

Entertainment

7.3

Comfort

7.3

Crew

7.9

Overall

7.4

Boarding

7.5

Food

7.3

Reviews

1 / 20
4.0
Okay

Scott,Jul 2026

DOH - ORD

Food and entertainment were really good. Seats and leg room were horrible. Stop being greedy and treating your passengers like cattle. Cramming people into seats where they have little to no leg room is inhumane. I'm over 2m tall, so I understand I'm on the high end of the spectrum, but there should be no reason why my knees were smashed up against the seat in front of me for an entire 14hr flight. I have flown internationally for over 30 years and it was the most uncomfortable flight I have ever been on. I would expect more from an airline that is trying to promote itself as a top tier option.
Qatar Airways
7.4
Good
3,738 reviews
Qatar Airways
7.4
Good
3,738 reviews

Entertainment

7.3

Comfort

7.3

Crew

7.9

Overall

7.4

Boarding

7.5

Food

7.3

Reviews

1 / 20
4.0
Okay

Scott,Jul 2026

DOH - ORD

Food and entertainment were really good. Seats and leg room were horrible. Stop being greedy and treating your passengers like cattle. Cramming people into seats where they have little to no leg room is inhumane. I'm over 2m tall, so I understand I'm on the high end of the spectrum, but there should be no reason why my knees were smashed up against the seat in front of me for an entire 14hr flight. I have flown internationally for over 30 years and it was the most uncomfortable flight I have ever been on. I would expect more from an airline that is trying to promote itself as a top tier option.
Etihad Airways
7.3
Good
1,505 reviews
Qatar Airways
7.4
Good
3,738 reviews

Entertainment

7.3

Comfort

7.3

Crew

7.9

Overall

7.4

Boarding

7.5

Food

7.3

Reviews

1 / 20
4.0
Okay

Scott,Jul 2026

DOH - ORD

Food and entertainment were really good. Seats and leg room were horrible. Stop being greedy and treating your passengers like cattle. Cramming people into seats where they have little to no leg room is inhumane. I'm over 2m tall, so I understand I'm on the high end of the spectrum, but there should be no reason why my knees were smashed up against the seat in front of me for an entire 14hr flight. I have flown internationally for over 30 years and it was the most uncomfortable flight I have ever been on. I would expect more from an airline that is trying to promote itself as a top tier option.

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.

  • How long is the flight from Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport?

    Airlines like Etihad Airways fly from Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport in about 26h 55m. The time it takes to get you to your destination can typically vary by up to . The distance between Colombo Bandaranaike Intl Airport and Washington, D.C. Dulles Intl Airport is about 8928 mi.

  • What are the cheapest airlines flying from Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport round-trip?

    Qatar Airways, at $994, was found to be the cheapest airline from Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport. An alternate airline flying to your destination would be Etihad Airways. Qatar Airways is priced at 23% 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 Qatar Airways. According to our data, you can fly for as low as $594. Users have also found prices from $651 and $854 on Etihad Airways and Turkish 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.

See more FAQs

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

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Owings Mills
Arlington
Tysons
Springfield
Lanham
Reston
Herndon
Rockville
Chantilly
Hyattsville
Fredericksburg
Falls Church
Hanover
Laurel
Sterling
Oxon Hill
Clinton
Hunt Valley
Woodbridge

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Top 2 airlines flying from Colombo to Dulles Intl

Discover the top 2 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 August 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest$994Average$1,328FlexibilityNo cancel feeOn-time68%
Etihad AirwaysCheapest$1,046Average$1,226FlexibilityNo cancel feeOn-time75%

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