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Colombo

$412+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — CMB
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 July 3, 2025.

Round-trip from

$997
(KAYAK)

One-way from

$412
(CrystalTravel)

Popular in

June

Cheapest in

April

Average price

$1,282
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 ($138 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 3, 2025.

This FlightHub deal was found by Cheapflights users on 7/3. 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.
Sun 8/3112:50 pmIAD - CMB
1 stop41h 45mAir India
Sat 9/65:05 pmCMB - IAD
1 stop24h 05mAir India
Deal found 7/3$996
This KAYAK deal was found by Cheapflights users on 7/2. 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.
Thu 8/710:05 pmIAD - CMB
1 stop19h 15mEtihad Airways
Thu 8/284:30 pmCMB - IAD
1 stop33h 10mEtihad Airways
Deal found 7/2$997
This oojo deal was found by Cheapflights users on 7/2. 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 7/1111:00 amIAD - CMB
1 stop30h 35mQatar Airways
Sat 7/194:35 amCMB - IAD
1 stop37h 35mQatar Airways
Deal found 7/2$1,026
This Trip.com deal was found by Cheapflights users on 7/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/610:05 pmIAD - CMB
2 stops39h 35mMultiple Airlines
Sun 8/315:15 pmCMB - IAD
2 stops56h 25mMultiple Airlines
Deal found 7/3$1,058
This Booking.com deal was found by Cheapflights users on 7/1. 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 8/151:30 pmIAD - CMB
2 stops33h 45mIndiGo
Sun 9/219:55 pmCMB - IAD
2 stops47h 20mIndiGo
Deal found 7/1$1,061
This JetBlue deal was found by Cheapflights users on 7/3. 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 8/319:00 pmIAD - CMB
1 stop19h 35mJetBlue
Fri 9/53:35 amCMB - IAD
1 stop21h 35mJetBlue
Deal found 7/3$1,091

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 July 3, 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

Sun 8/31

12:50 pm-4:05 pm

1 stop41h 45m

Colombo Bandaranaike Intl

Sat 9/6

5:05 pm-7:40 am

1 stop24h 05m

$996

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Thu 8/7

10:05 pm-2:50 am

1 stop19h 15m

Colombo Bandaranaike Intl

Thu 8/28

4:30 pm-4:10 pm

1 stop33h 10m

$997

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Tue 8/5

1:30 pm-11:10 pm

2 stops48h 10m

Colombo Bandaranaike Intl

Mon 9/1

11:40 pm-11:45 am

2 stops45h 35m

$1,026

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Tue 10/7

9:00 pm-9:40 am

1 stop27h 10m

Colombo Bandaranaike Intl

Mon 10/20

3:35 am-8:40 am

1 stop38h 35m

$1,041

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Fri 8/15

1:30 pm-8:45 am

2 stops33h 45m

Colombo Bandaranaike Intl

Sun 9/21

9:55 pm-11:45 am

2 stops47h 20m

$1,061

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Sun 8/31

9:00 pm-2:05 am

1 stop19h 35m

Colombo Bandaranaike Intl

Fri 9/5

3:35 am-3:40 pm

1 stop21h 35m

$1,091

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Fri 8/15

10:05 pm-2:50 am

1 stop19h 15m

$412

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Wed 8/13

6:10 am-2:50 am

2 stops35h 10m

$422

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Tue 8/12

9:00 pm-9:00 am

1 stop26h 30m

$456

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Sat 8/16

9:40 pm-8:45 am

2 stops25h 35m

$457

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 11 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 27, 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 $1,046). Flying from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport in December is currently the most expensive (average of $1,797). 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 July 3, 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.

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

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 July 3, 2025.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport, such as Qatar Airways, Etihad Airways, and Gulf Air. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Qatar Airways
7.4
Good
3,594 reviews

Boarding

7.5

Entertainment

7.4

Comfort

7.4

Food

7.3

Overall

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
3,594 reviews
Qatar Airways
7.4
Good
3,594 reviews

Boarding

7.5

Entertainment

7.4

Comfort

7.4

Food

7.3

Overall

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
1,220 reviews
Qatar Airways
7.4
Good
3,594 reviews

Boarding

7.5

Entertainment

7.4

Comfort

7.4

Food

7.3

Overall

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
3,594 reviews

Boarding

7.5

Entertainment

7.4

Comfort

7.4

Food

7.3

Overall

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
IndiGo
6.8
Okay
478 reviews
Qatar Airways
7.4
Good
3,594 reviews

Boarding

7.5

Entertainment

7.4

Comfort

7.4

Food

7.3

Overall

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 India
5.5
Fair
2,926 reviews
Qatar Airways
7.4
Good
3,594 reviews

Boarding

7.5

Entertainment

7.4

Comfort

7.4

Food

7.3

Overall

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, Etihad Airways ($997), Qatar Airways ($1,026), and IndiGo ($1,061) offers the cheapest pricing from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport. Users have found that Etihad Airways is 7% 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 $412. However, be on the lookout for offers from Qatar Airways 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 $26 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 $1,046). Flying from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport in December is currently the most expensive (average of $1,797). 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 7 airlines flying from Dulles Intl to Colombo

Discover the top 7 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$750Average$1,038FlexibilityNo cancel feeOn-time75%
Air IndiaCheapest$830Average$1,106FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$890Average$939FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$900Average$1,249FlexibilityNo cancel feeOn-time71%
Qatar AirwaysCheapest$920Average$1,100FlexibilityNo cancel feeOn-time68%
IndiGoCheapest$1,082Average$1,380FlexibilityNo cancel feeOn-time80%
EmiratesCheapest$1,410Average$1,668FlexibilityNo cancel feeOn-time75%

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