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Colombo

$408+ 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 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — CMB
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
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 February 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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$756
(CrystalTravel)

One-way from

$408
(oojo)

Popular in

December

Cheapest in

February

Average price

$958
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. 9% potential increase in price ($129 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($64 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 28, 2025.

This CrystalTravel deal was found by Cheapflights users on 3/27. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2710:05 pmIAD - CMB
1 stop24h 55mEtihad Airways
Tue 10/79:45 pmCMB - IAD
1 stop27h 55mEtihad Airways
Deal found 3/27$756
This oojo deal was found by Cheapflights users on 3/26. 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 9/159:00 pmIAD - CMB
1 stop26h 30mQatar Airways
Mon 9/2210:30 amCMB - IAD
1 stop38h 40mQatar Airways
Deal found 3/26$846
This American Airlines deal was found by Cheapflights users on 3/27. 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 4/219:00 pmIAD - CMB
1 stop19h 35mAmerican Airlines
Mon 11/243:25 amCMB - IAD
1 stop23h 00mAmerican Airlines
Deal found 3/27$901
This oojo deal was found by Cheapflights users on 3/27. 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.
Thu 5/151:30 pmIAD - CMB
1 stop30h 15mTurkish Airlines
Fri 6/206:45 amCMB - IAD
1 stop22h 30mTurkish Airlines
Deal found 3/27$982
This JetBlue Airways deal was found by Cheapflights users on 3/27. 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 Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/209:00 pmIAD - CMB
1 stop20h 35mMultiple Airlines
Sun 4/273:35 amCMB - IAD
1 stop21h 35mMultiple Airlines
Deal found 3/27$1,025
This Booking.com deal was found by Cheapflights users on 3/28. 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.
Thu 8/289:40 pmIAD - CMB
2 stops28h 40mIndiGo
Sun 9/712:50 pmCMB - IAD
2 stops40h 25mIndiGo
Deal found 3/28$1,181
This Justfly.com deal was found by Cheapflights users on 3/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/278:07 pmIAD - CMB
2 stops41h 58mSingapore Airlines
Tue 9/912:50 amCMB - IAD
2 stops48h 39mSingapore Airlines
Deal found 3/27$1,248
This JetBlue deal was found by Cheapflights users on 3/27. 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.
Tue 12/28:05 pmIAD - CMB
1 stop19h 20mJetBlue
Sat 12/273:25 amCMB - IAD
1 stop23h 00mJetBlue
Deal found 3/27$1,250

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 March 28, 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

Wed 8/27

10:05 pm-8:30 am

1 stop24h 55m

Colombo Bandaranaike Intl

Tue 10/7

9:45 pm-4:10 pm

1 stop27h 55m

$756

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Mon 9/15

9:00 pm-9:00 am

1 stop26h 30m

Colombo Bandaranaike Intl

Mon 9/22

10:30 am-3:40 pm

1 stop38h 40m

$846

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Mon 4/21

9:00 pm-2:05 am

1 stop19h 35m

Colombo Bandaranaike Intl

Mon 11/24

3:25 am-3:55 pm

1 stop23h 00m

$901

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Thu 5/15

1:30 pm-5:15 am

1 stop30h 15m

Colombo Bandaranaike Intl

Fri 6/20

6:45 am-7:45 pm

1 stop22h 30m

$982

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Sun 4/20

9:00 pm-3:05 am

1 stop20h 35m

Colombo Bandaranaike Intl

Sun 4/27

3:35 am-3:40 pm

1 stop21h 35m

$1,025

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Thu 8/28

9:40 pm-11:50 am

2 stops28h 40m

Colombo Bandaranaike Intl

Sun 9/7

12:50 pm-7:45 pm

2 stops40h 25m

$1,181

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Wed 8/27

8:07 pm-11:35 pm

2 stops41h 58m

Colombo Bandaranaike Intl

Tue 9/9

12:50 am-3:59 pm

2 stops48h 39m

$1,248

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Tue 4/8

10:55 am-6:30 pm

2 stops22h 05m

Colombo Bandaranaike Intl

Sun 4/13

2:05 am-8:40 am

1 stop40h 05m

$1,378

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Sat 5/3

3:27 pm-8:35 am

2 stops31h 38m

Colombo Bandaranaike Intl

Fri 5/23

10:05 am-1:41 pm

2 stops37h 06m

$1,398

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Sat 4/26

10:05 pm-8:30 am

1 stop24h 55m

$408

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Showing 1-10 of 12 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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
FareScanPrice Accuracy-Trust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
GurufarePrice Accuracy3 starsTrust Score*3 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Colombo Bandaranaike Intl Airport flight deals on Cheapflights vs. FlightHub >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 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 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 March 21, 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 March 28, 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 March 28, 2025.
Singapore Airlines
8.1
Very good
1,285 reviews

Crew

8.6

Food

7.7

Entertainment

8.0

Overall

8.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Singapore Airlines
8.1
Very good
1,285 reviews
Singapore Airlines
8.1
Very good
1,285 reviews

Crew

8.6

Food

7.7

Entertainment

8.0

Overall

8.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Emirates
8.0
Very good
3,190 reviews
Singapore Airlines
8.1
Very good
1,285 reviews

Crew

8.6

Food

7.7

Entertainment

8.0

Overall

8.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Qatar Airways
7.4
Good
3,538 reviews
Singapore Airlines
8.1
Very good
1,285 reviews

Crew

8.6

Food

7.7

Entertainment

8.0

Overall

8.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Etihad Airways
7.4
Good
1,181 reviews
Singapore Airlines
8.1
Very good
1,285 reviews

Crew

8.6

Food

7.7

Entertainment

8.0

Overall

8.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Turkish Airlines
7.3
Good
3,744 reviews
Singapore Airlines
8.1
Very good
1,285 reviews

Crew

8.6

Food

7.7

Entertainment

8.0

Overall

8.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

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 ($756), Qatar Airways ($846), and American Airlines ($901) offers the cheapest pricing from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport. Users have found that Etihad Airways is 36% 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 Etihad Airways, with whom users have recently found tickets for as low as $408. However, be on the lookout for offers from IndiGo and Air Canada, 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 Doha.

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

    Museum of Islamic Art, Katara Cultural Village, and Aspire Tower are the most popular attractions in Doha if you're in need of something to do during your layover. Museum of Islamic Art, Katara Cultural Village, and Aspire Tower can be accessed by traveling approximately 5.2 mi, 8.7 mi, and 10.6 mi, respectively from Doha Hamad Intl. Travelers can rent a car at Doha Hamad Intl for an average daily rate of $29 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 Abu Dhabi 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.
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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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$747Average$1,145FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$910Average$959FlexibilityNo cancel feeOn-time77%
Qatar AirwaysCheapest$936Average$1,176FlexibilityNo cancel feeOn-time68%
American AirlinesCheapest$1,043Average$1,473FlexibilityNo cancel feeOn-time71%
EmiratesCheapest$1,386Average$1,869FlexibilityNo cancel feeOn-time75%
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