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$435+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — CMB
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
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 February, 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 August 20, 2025.

Round-trip from

$885
(FlightHub)

One-way from

$435
(SmartFares)

Popular in

December

Cheapest in

April

Average price

$1,065
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. 6% potential increase in price ($79 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 20, 2025.

This FlightHub deal was found by Cheapflights users on 8/20. 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 9/159:00 pmIAD - CMB
1 stop27h 10mQatar Airways
Mon 9/224:35 amCMB - IAD
1 stop20h 35mQatar Airways
Deal found 8/20$885
This FlightHub deal was found by Cheapflights users on 8/18. 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 10/31:30 pmIAD - CMB
1 stop37h 45mTurkish Airlines
Wed 10/86:45 amCMB - IAD
1 stop22h 30mTurkish Airlines
Deal found 8/18$889
This Etihad Airways deal was found by Cheapflights users on 8/20. 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.
Mon 10/610:05 pmIAD - CMB
1 stop24h 55mEtihad Airways
Thu 10/164:05 amCMB - IAD
1 stop21h 35mEtihad Airways
Deal found 8/20$894
This Indian Eagle deal was found by Cheapflights users on 8/20. 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 Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2510:05 pmIAD - CMB
1 stop19h 15mEtihad Airways
Sat 11/14:00 amCMB - IAD
1 stop22h 35mEtihad Airways
Deal found 8/20$897
This FlightHub deal was found by Cheapflights users on 8/20. 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.
Thu 10/91:30 pmIAD - CMB
1 stop30h 15mTurkish Airlines
Fri 10/176:45 amCMB - IAD
1 stop22h 30mTurkish Airlines
Deal found 8/20$899
This Gotogate deal was found by Cheapflights users on 8/19. 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.
Fri 10/310:05 pmIAD - CMB
1 stop19h 15mEtihad Airways
Sun 10/194:05 amCMB - IAD
1 stop21h 35mEtihad Airways
Deal found 8/19$911
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 9/2610:05 pmIAD - CMB
1 stop37h 00mEtihad Airways
Sun 10/59:50 pmCMB - IAD
1 stop27h 50mEtihad Airways
Deal found 8/18$914
This oojo deal was found by Cheapflights users on 8/19. 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.
Fri 8/2911:00 amIAD - CMB
1 stop29h 35mQatar Airways
Wed 9/108:20 pmCMB - IAD
1 stop28h 50mQatar Airways
Deal found 8/19$917
This oojo deal was found by Cheapflights users on 8/18. 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 11/129:10 pmIAD - CMB
1 stop24h 35mEtihad Airways
Tue 12/94:00 amCMB - IAD
1 stop22h 35mEtihad Airways
Deal found 8/18$918
This Ovago deal was found by Cheapflights users on 8/20. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/189:00 pmIAD - CMB
1 stop20h 35mQatar Airways
Sun 9/213:35 amCMB - IAD
1 stop21h 35mQatar Airways
Deal found 8/20$919
This CrystalTravel deal was found by Cheapflights users on 8/19. 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.
Sun 9/149:00 pmIAD - CMB
1 stop27h 10mQatar Airways
Sat 9/273:35 amCMB - IAD
1 stop21h 35mQatar Airways
Deal found 8/19$923
This FlightHub deal was found by Cheapflights users on 8/18. 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 9/169:00 pmIAD - CMB
1 stop20h 35mQatar Airways
Sat 9/273:35 amCMB - IAD
1 stop21h 35mQatar Airways
Deal found 8/18$924

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 August 20, 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 9/4

9:00 pm-2:05 am

1 stop19h 35m

Colombo Bandaranaike Intl

Thu 9/18

3:35 am-3:40 pm

1 stop21h 35m

$885

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Mon 9/15

9:00 pm-2:05 am

1 stop19h 35m

Colombo Bandaranaike Intl

Sun 9/21

3:35 am-3:40 pm

1 stop21h 35m

$885

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Tue 2/3

8:05 pm-1:55 am

1 stop19h 20m

Colombo Bandaranaike Intl

Mon 2/23

7:30 pm-3:55 pm

1 stop30h 55m

$885

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Fri 10/3

1:30 pm-12:45 pm

1 stop37h 45m

Colombo Bandaranaike Intl

Wed 10/8

6:45 am-7:45 pm

1 stop22h 30m

$889

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Sat 10/4

1:30 pm-5:15 am

1 stop30h 15m

Colombo Bandaranaike Intl

Tue 11/18

10:00 pm-7:15 pm

1 stop31h 45m

$889

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Thu 1/29

9:10 pm-2:50 am

1 stop19h 10m

Colombo Bandaranaike Intl

Sat 2/14

4:00 am-4:05 pm

1 stop22h 35m

$891

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Tue 10/7

10:05 pm-2:50 am

1 stop19h 15m

Colombo Bandaranaike Intl

Mon 10/20

9:50 pm-4:10 pm

1 stop27h 50m

$894

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Mon 10/6

10:05 pm-2:50 am

1 stop19h 15m

Colombo Bandaranaike Intl

Fri 10/17

4:05 am-4:10 pm

1 stop21h 35m

$894

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Wed 10/8

10:05 pm-2:50 am

1 stop19h 15m

Colombo Bandaranaike Intl

Fri 10/17

4:05 am-4:10 pm

1 stop21h 35m

$894

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Tue 10/7

10:05 pm-3:25 pm

1 stop31h 50m

Colombo Bandaranaike Intl

Sat 10/18

10:05 am-4:10 pm

1 stop39h 35m

$894

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 23 results
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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 August 8, 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 $1,039). Flying from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport in December is currently the most expensive (average of $1,762). 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 August 20, 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.

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 August 20, 2025.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport, such as Emirates, Qatar Airways, and Etihad Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very good
3,317 reviews

Food

7.8

Entertainment

8.2

Boarding

8.1

Crew

8.3

Comfort

8.0

Overall

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Emirates
8.1
Very good
3,317 reviews
Emirates
8.1
Very good
3,317 reviews

Food

7.8

Entertainment

8.2

Boarding

8.1

Crew

8.3

Comfort

8.0

Overall

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Qatar Airways
7.4
Good
3,611 reviews
Emirates
8.1
Very good
3,317 reviews

Food

7.8

Entertainment

8.2

Boarding

8.1

Crew

8.3

Comfort

8.0

Overall

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Etihad Airways
7.4
Good
1,233 reviews
Emirates
8.1
Very good
3,317 reviews

Food

7.8

Entertainment

8.2

Boarding

8.1

Crew

8.3

Comfort

8.0

Overall

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Turkish Airlines
7.3
Good
3,949 reviews
Emirates
8.1
Very good
3,317 reviews

Food

7.8

Entertainment

8.2

Boarding

8.1

Crew

8.3

Comfort

8.0

Overall

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
American Airlines
7.2
Good
10,000 reviews
Emirates
8.1
Very good
3,317 reviews

Food

7.8

Entertainment

8.2

Boarding

8.1

Crew

8.3

Comfort

8.0

Overall

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

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.

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

    A quick flight from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport can take about 19h 35m. Qatar Airways provides one of the quickest options available for as low as $885. Airlines will cover a distance of 8928 mi. This flight may include one or multiple stops.

  • 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 ($750), Air India ($830), and JetBlue ($851) offers the cheapest pricing from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport. Users have found that Etihad Airways is 29% cheaper than the other options available to this destination.

  • 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 Etihad Towers 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 Etihad Towers can be accessed by traveling approximately 21.1 mi, 7.9 mi, and 20.8 mi, respectively from Abu Dhabi Zayed Intl. Travelers can rent a car at Abu Dhabi Zayed Intl for an average daily rate of $20 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 $1,039). Flying from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport in December is currently the most expensive (average of $1,762). 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
Negombo

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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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Top 8 airlines flying from Dulles Intl to Colombo

Discover the top 8 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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$750Average$1,044FlexibilityNo cancel feeOn-time75%
Air IndiaCheapest$830Average$1,122FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$851Average$1,024FlexibilityNo cancel feeOn-time62%
Turkish AirlinesCheapest$856Average$932FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$900Average$1,249FlexibilityNo cancel feeOn-time71%
Qatar AirwaysCheapest$917Average$1,105FlexibilityNo cancel feeOn-time68%
IndiGoCheapest$1,082Average$1,301FlexibilityNo cancel feeOn-time80%
EmiratesCheapest$1,400Average$1,694FlexibilityNo cancel feeOn-time75%

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