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Colombo

$418+ 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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — CMB
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$992
(Turkish Airlines)

One-way from

$418
(CrystalTravel)

Popular in

June

Cheapest in

April

Average price

$1,395
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 ($143 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 June 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 June 12, 2025.

This Turkish Airlines deal was found by Cheapflights users on 6/10. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1912:55 pmIAD - CMB
1 stop30h 45mTurkish Airlines
Sat 12/67:40 amCMB - IAD
1 stop38h 00mTurkish Airlines
Deal found 6/10$992
This Qatar Airways deal was found by Cheapflights users on 6/10. 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.
Wed 11/128:05 pmIAD - CMB
1 stop20h 10mQatar Airways
Sat 12/137:15 pmCMB - IAD
1 stop31h 10mQatar Airways
Deal found 6/10$1,001
This Etihad Airways deal was found by Cheapflights users on 6/10. 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.
Sat 12/279:30 pmIAD - CMB
1 stop36h 35mEtihad Airways
Sat 1/314:15 pmCMB - IAD
1 stop34h 20mEtihad Airways
Deal found 6/10$1,002
This JetBlue deal was found by Cheapflights users on 6/10. 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.
Sat 11/88:05 pmIAD - CMB
1 stop20h 10mJetBlue
Fri 12/53:25 amCMB - IAD
1 stop23h 00mJetBlue
Deal found 6/10$1,013
This KAYAK deal was found by Cheapflights users on 6/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/1512:50 pmIAD - CMB
1 stop41h 45mAir India
Sat 6/288:20 amCMB - IAD
2 stops36h 25mAir India
Deal found 6/11$1,014
This Booking.com deal was found by Cheapflights users on 6/10. 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.
Fri 8/81:30 pmIAD - CMB
2 stops33h 45mIndiGo
Thu 9/189:55 pmCMB - IAD
2 stops31h 20mIndiGo
Deal found 6/10$1,017
This Booking.com deal was found by Cheapflights users on 6/10. 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 8/1012:50 pmIAD - CMB
1 stop33h 00mMultiple Airlines
Thu 9/189:55 pmCMB - IAD
2 stops47h 20mMultiple Airlines
Deal found 6/10$1,030
This American Airlines deal was found by Cheapflights users on 6/12. 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 stop19h 20mAmerican Airlines
Sat 11/297:15 pmCMB - IAD
1 stop31h 10mAmerican Airlines
Deal found 6/12$1,076
This FlightHub deal was found by Cheapflights users on 6/10. 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 11/176:11 pmIAD - CMB
2 stops42h 49mSingapore Airlines
Mon 12/812:45 amCMB - IAD
2 stops27h 40mSingapore Airlines
Deal found 6/10$1,229
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/177:43 amIAD - CMB
2 stops32h 32mAlaska Airlines
Tue 12/164:15 amCMB - IAD
1 stop22h 10mAlaska Airlines
Deal found 6/10$1,274

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 June 12, 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 11/19

12:55 pm-6:10 am

1 stop30h 45m

Colombo Bandaranaike Intl

Sun 12/7

7:40 am-7:15 pm

1 stop22h 05m

$992

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Wed 11/12

8:05 pm-2:45 am

1 stop20h 10m

Colombo Bandaranaike Intl

Sat 12/13

7:15 pm-3:55 pm

1 stop31h 10m

$1,001

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Thu 8/7

10:05 pm-3:25 pm

1 stop31h 50m

Colombo Bandaranaike Intl

Thu 8/28

4:30 pm-4:10 pm

1 stop33h 10m

$1,006

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Sat 11/8

8:05 pm-2:45 am

1 stop20h 10m

Colombo Bandaranaike Intl

Fri 12/5

3:25 am-3:55 pm

1 stop23h 00m

$1,013

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Fri 8/8

1:30 pm-8:45 am

2 stops33h 45m

Colombo Bandaranaike Intl

Thu 9/18

9:55 pm-7:45 pm

2 stops31h 20m

$1,017

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Sun 7/6

12:50 pm-4:05 pm

1 stop41h 45m

Colombo Bandaranaike Intl

Sat 7/12

8:20 am-11:15 am

2 stops36h 25m

$1,029

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Sun 8/10

12:50 pm-7:20 am

1 stop33h 00m

Colombo Bandaranaike Intl

Thu 9/18

9:55 pm-11:45 am

2 stops47h 20m

$1,030

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Mon 11/3

8:05 pm-1:55 am

1 stop19h 20m

Colombo Bandaranaike Intl

Sat 11/29

7:15 pm-3:55 pm

1 stop31h 10m

$1,076

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Mon 11/17

6:11 pm-11:30 pm

2 stops42h 49m

Colombo Bandaranaike Intl

Mon 12/8

12:45 am-5:55 pm

2 stops27h 40m

$1,229

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Mon 11/17

7:43 am-2:45 am

2 stops32h 32m

Colombo Bandaranaike Intl

Tue 12/16

4:15 am-3:55 pm

1 stop22h 10m

$1,274

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 19 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 June 9, 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 $1,818). 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 June 12, 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 June 12, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Colombo, such as Qatar Airways, Etihad Airways and Turkish Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Qatar Airways
7.4
Good
3,584 reviews

Boarding

7.5

Comfort

7.4

Food

7.3

Overall

7.4

Entertainment

7.4

Crew

7.9

Reviews

1 / 20
10.0
Excellent

fa,May 2025

PHL - DOH

The best,the staff was experienced,cheerful, professional,I will use from now on more frequently American airlines
Qatar Airways
7.4
Good
3,584 reviews
Qatar Airways
7.4
Good
3,584 reviews

Boarding

7.5

Comfort

7.4

Food

7.3

Overall

7.4

Entertainment

7.4

Crew

7.9

Reviews

1 / 20
10.0
Excellent

fa,May 2025

PHL - DOH

The best,the staff was experienced,cheerful, professional,I will use from now on more frequently American airlines
Etihad Airways
7.4
Good
1,211 reviews
Qatar Airways
7.4
Good
3,584 reviews

Boarding

7.5

Comfort

7.4

Food

7.3

Overall

7.4

Entertainment

7.4

Crew

7.9

Reviews

1 / 20
10.0
Excellent

fa,May 2025

PHL - DOH

The best,the staff was experienced,cheerful, professional,I will use from now on more frequently American airlines
Turkish Airlines
7.3
Good
3,848 reviews
Qatar Airways
7.4
Good
3,584 reviews

Boarding

7.5

Comfort

7.4

Food

7.3

Overall

7.4

Entertainment

7.4

Crew

7.9

Reviews

1 / 20
10.0
Excellent

fa,May 2025

PHL - DOH

The best,the staff was experienced,cheerful, professional,I will use from now on more frequently American airlines
Air Canada
7.1
Good
9,531 reviews
Qatar Airways
7.4
Good
3,584 reviews

Boarding

7.5

Comfort

7.4

Food

7.3

Overall

7.4

Entertainment

7.4

Crew

7.9

Reviews

1 / 20
10.0
Excellent

fa,May 2025

PHL - DOH

The best,the staff was experienced,cheerful, professional,I will use from now on more frequently American airlines
Gulf Air
7.1
Good
200 reviews
Qatar Airways
7.4
Good
3,584 reviews

Boarding

7.5

Comfort

7.4

Food

7.3

Overall

7.4

Entertainment

7.4

Crew

7.9

Reviews

1 / 20
10.0
Excellent

fa,May 2025

PHL - DOH

The best,the staff was experienced,cheerful, professional,I will use from now on more frequently American airlines

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, Turkish Airlines ($992), Qatar Airways ($1,001), and Etihad Airways ($1,006) offers the cheapest pricing from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport. Users have found that Turkish Airlines is 8% 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 $418. However, be on the lookout for offers from Air India and IndiGo, 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 Ferrari World Abu Dhabi 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 Ferrari World Abu Dhabi can be accessed by traveling approximately 21.1 mi, 7.9 mi, and 4.5 mi, respectively from Abu Dhabi Zayed Intl. Travelers can rent a car at Abu Dhabi Zayed Intl for an average daily rate of $28 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 $1,818). 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
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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Baltimore to Colombo flights

Top 6 airlines flying from Dulles Intl to Colombo

Discover the top 6 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$750Average$1,057FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$890Average$948FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$900Average$1,393FlexibilityNo cancel feeOn-time71%
Qatar AirwaysCheapest$923Average$1,110FlexibilityNo cancel feeOn-time68%
IndiGoCheapest$1,082Average$1,380FlexibilityNo cancel feeOn-time80%
EmiratesCheapest$1,400Average$1,862FlexibilityNo cancel feeOn-time75%

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