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Colombo

$505+ Cheap flights from Dulles Intl (IAD) to Bandaranaike Intl (CMB)

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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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Colombo Bandaranaike Intl are usually found in April or March, booked 58 days in advance, depart on a Tuesday or Wednesday and return on a Friday

Cheap flight deals from Dulles Intl to Colombo

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Colombo (CMB). 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

$770
(oojo)

One-way from

$505
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$900
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Colombo Bandaranaike Intl flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Colombo Bandaranaike Intl flights.
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From Washington, D.C. Dulles Intl to Colombo Bandaranaike Intl
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One-way flight from Washington, D.C. Dulles Intl to Colombo Bandaranaike Intl
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Highest demand for flights based on searches. 11% potential increase in price ($146 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($66 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 Colombo

Cheapest flights from Dulles Intl to Colombo
Explore the most affordable flight options available from Dulles Intl to Colombo. 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 Colombo 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 Colombo Bandaranaike Intl Airport that are best for you.

Fly from

Dulles Intl

Fly to

Colombo

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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Compare providers for flights from Dulles Intl to Colombo

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 Dulles Intl to Colombo in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FareScanPrice Accuracy-Trust Score*3 stars
GurufarePrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*2 stars
Trip.comPrice Accuracy1 starTrust 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 Washington, D.C. Dulles Intl Airport-Colombo Bandaranaike Intl Airport flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Washington, D.C. Dulles Intl Airport-Colombo Bandaranaike Intl Airport flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Colombo Bandaranaike Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Colombo Bandaranaike 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 Washington, D.C. Dulles Intl Airport-Colombo Bandaranaike 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 Dulles Intl to Colombo

Have a flexible travel schedule? Discover the best time to fly to Colombo 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 Colombo Bandaranaike Intl Airport

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Colombo. Price data was last updated on April 11, 2025.

The best time to book flights from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport is 58 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport (average of $1,049). Flying from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport 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 CMB?

Find hourly flight availability from Dulles Intl to Colombo. 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.

One of the essential ways to save on airfare from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 11% on airfare.

Rainfall in Colombo by month

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

In terms of precipitation, rainfall in Colombo Bandaranaike Intl Airport 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 Colombo Bandaranaike Intl Airport when rainfall is around 2.4 in.

Temperature in Colombo by month

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

If weather is an important factor for your trip to Colombo Bandaranaike Intl Airport, 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 Colombo

Get insights into the airlines that provide service to Colombo. 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 Colombo. Reviews last updated April 17, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Colombo, such as Singapore Airlines, Emirates and Qatar Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very good
1,288 reviews

Comfort

7.9

Overall

8.1

Food

7.7

Crew

8.6

Boarding

8.2

Entertainment

8.0

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

Comfort

7.9

Overall

8.1

Food

7.7

Crew

8.6

Boarding

8.2

Entertainment

8.0

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

Comfort

7.9

Overall

8.1

Food

7.7

Crew

8.6

Boarding

8.2

Entertainment

8.0

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

Comfort

7.9

Overall

8.1

Food

7.7

Crew

8.6

Boarding

8.2

Entertainment

8.0

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

Comfort

7.9

Overall

8.1

Food

7.7

Crew

8.6

Boarding

8.2

Entertainment

8.0

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
3,769 reviews
Singapore Airlines
8.1
Very good
1,288 reviews

Comfort

7.9

Overall

8.1

Food

7.7

Crew

8.6

Boarding

8.2

Entertainment

8.0

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 Colombo. 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 Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport round-trip?

    According to our current data, Etihad Airways ($770), Qatar Airways ($841), and Turkish Airlines ($1,207) offers the cheapest pricing from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport. Users have found that Etihad Airways is 34% cheaper than the other options available to this destination.

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

    The cheapest airline one-way is Air India, with whom users have recently found tickets for as low as $883. However, be on the lookout for offers from Etihad Airways and Turkish Airlines, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport for a low price.

  • Where are the most common layover locations when flying from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport?

    Most of the time, Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport flights that have layovers will stop in Abu Dhabi.

  • What are some popular things to do or see while on a layover in Abu Dhabi?

    Emirates Palace, Emirates Park Zoo, and Sheikh Zayed Mosque are the most popular attractions in Abu Dhabi if you're in need of something to do during your layover. Emirates Palace, Emirates Park Zoo, and Sheikh Zayed Mosque can be accessed by traveling approximately 21.1 mi, 7.9 mi, and 11.2 mi, respectively from Abu Dhabi Zayed Intl. Travelers can rent a car at Abu Dhabi Zayed Intl for an average daily rate of $24 to make sightseeing during their layover a little easier.

  • Where are the least popular layover locations for Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport flights?

    Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport flights have a layover in Doha least often.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Colombo 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 Colombo Bandaranaike Intl Airport?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport (average of $1,049). Flying from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport 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

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
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Alternative routes for Dulles Intl to Colombo

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

Top 5 airlines flying from Dulles Intl to Colombo

Discover the top 5 airlines that operate flights from Dulles Intl to Colombo. 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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