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Dulles Intl

$574+ Cheap flights from Bandaranaike Intl (CMB) to Dulles Intl (IAD)

CMB — IAD
Oct 12 — Oct 191
Mon 10/12
Mon 10/19
1 adult, Economy
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Cheap flight deals from Colombo to Dulles Intl

Cheapest flights from Colombo to Dulles Intl

Mon 11/96:40 pm -
2 stops32h 50m
Mon 11/238:10 pm -
2 stops25h 40m
Deal found 9/7$867
Wed 11/116:40 pm -
2 stops31h 20m
Wed 4/218:20 pm -
2 stops26h 40m
Deal found 9/11$868
Thu 11/196:40 pm -
2 stops31h 20m
Fri 11/2710:55 pm -
2 stops30h 30m
Deal found 9/7$872
Thu 12/176:40 pm -
2 stops30h 00m
Sat 1/210:55 pm -
2 stops30h 30m
Deal found 9/11$902
Thu 11/126:40 pm -
2 stops31h 20m
Thu 12/38:10 pm -
2 stops25h 40m
Deal found 9/8$904
Mon 10/1910:00 am -
1 stop33h 15m
Mon 10/263:35 pm -
1 stop19h 10m
Deal found 9/11$974
Mon 9/289:50 pm -
1 stop21h 25m
Fri 12/42:35 pm -
1 stop25h 45m
Deal found 9/8$991
Sun 9/209:50 pm -
1 stop21h 25m
Sat 10/103:10 pm -
1 stop19h 55m
Deal found 9/7$1,008
Mon 10/199:45 am -
3 stops33h 30m
Mon 10/263:35 pm -
1 stop31h 05m
Deal found 9/11$1,023
Fri 9/259:50 pm -
1 stop21h 25m
Mon 12/72:35 pm -
1 stop25h 45m
Deal found 9/8$1,050
Tue 9/299:50 pm -
1 stop21h 25m
Wed 12/22:35 pm -
1 stop25h 45m
Deal found 9/8$1,052

Find flight deals from Colombo to Dulles Intl

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$867
(Expedia)

One-way from

$574
(Trip.com)

Popular in

December

Cheapest in

February

Average price

$1,228
Provider with most accurate pricing for Colombo Bandaranaike Intl-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Colombo Bandaranaike Intl-Washington, D.C. Dulles Intl flights.
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From Colombo Bandaranaike Intl to Washington, D.C. Dulles Intl
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One-way flight from Colombo Bandaranaike Intl to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 9% potential increase in price ($141 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ColomboWashington, D.C.

CMB Colombo Bandaranaike Intl - IAD Washington, D.C. Dulles Intl

CMBIAD

Colombo Bandaranaike Intl

Mon 12/7

9:50 pm-9:05 am

2 stops45h 45m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-10:30 am

Nonstop0h 00m

$574

ColomboWashington, D.C.

CMB Colombo Bandaranaike Intl - IAD Washington, D.C. Dulles Intl

CMBIAD

Colombo Bandaranaike Intl

Sat 10/17

4:00 am-6:35 am

2 stops36h 05m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-10:30 am

Nonstop0h 00m

$632

ColomboWashington, D.C.

CMB Colombo Bandaranaike Intl - IAD Washington, D.C. Dulles Intl

CMBIAD

Colombo Bandaranaike Intl

Tue 9/29

12:55 am-9:45 am

2 stops42h 20m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-10:30 am

Nonstop0h 00m

$637

ColomboWashington, D.C.

CMB Colombo Bandaranaike Intl - IAD Washington, D.C. Dulles Intl

CMBIAD

Colombo Bandaranaike Intl

Thu 10/1

10:00 am-9:45 am

1 stop33h 15m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-10:30 am

Nonstop0h 00m

$639
Quickest round-trip

ColomboWashington, D.C.

CMB Colombo Bandaranaike Intl - IAD Washington, D.C. Dulles Intl

CMBIAD

Colombo Bandaranaike Intl

Thu 10/15

9:50 pm-9:45 am

1 stop21h 25m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-10:30 am

Nonstop0h 00m

$639

ColomboWashington, D.C.

CMB Colombo Bandaranaike Intl - IAD Washington, D.C. Dulles Intl

CMBIAD

Colombo Bandaranaike Intl

Wed 9/30

10:00 am-9:45 am

1 stop33h 15m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-10:30 am

Nonstop0h 00m

$639

ColomboWashington, D.C.

CMB Colombo Bandaranaike Intl - IAD Washington, D.C. Dulles Intl

CMBIAD

Colombo Bandaranaike Intl

Sat 10/10

4:10 am-12:21 am

2 stops29h 41m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-10:30 am

Nonstop0h 00m

$646

ColomboWashington, D.C.

CMB Colombo Bandaranaike Intl - IAD Washington, D.C. Dulles Intl

CMBIAD

Colombo Bandaranaike Intl

Thu 10/15

7:35 am-9:45 am

2 stops35h 40m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-10:30 am

Nonstop0h 00m

$646

ColomboWashington, D.C.

CMB Colombo Bandaranaike Intl - IAD Washington, D.C. Dulles Intl

CMBIAD

Colombo Bandaranaike Intl

Mon 10/12

4:20 pm-9:45 am

1 stop26h 55m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-10:30 am

Nonstop0h 00m

$648

ColomboWashington, D.C.

CMB Colombo Bandaranaike Intl - IAD Washington, D.C. Dulles Intl

CMBIAD

Colombo Bandaranaike Intl

Thu 12/17

6:40 pm-2:10 pm

2 stops30h 00m

Washington, D.C. Dulles Intl

Sat 1/2

10:55 pm-3:55 pm

2 stops30h 30m

$902

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/8

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Compare providers for flights from Colombo to Dulles Intl

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Colombo to Dulles Intl in September.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust 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 Colombo Bandaranaike Intl Airport-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Colombo Bandaranaike Intl Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Colombo Bandaranaike Intl Airport-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Colombo Bandaranaike Intl Airport-Washington, D.C. Dulles 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 Colombo Bandaranaike Intl Airport-Washington, D.C. Dulles 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 Colombo to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Colombo with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport

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

Airfare is below average for this route at the moment.

Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport flights typically cost between $1,169 and $1,308 in November.
The cheapest round-trip price found within the last 5 days was $868 on Multiple Airlines (Nov 11-Apr 21).

Reviews of airlines servicing Dulles Intl

Read through reviews of airlines operating flights from Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport, such as Qatar Airways and Etihad Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Qatar Airways
7.4
Good
3,733 reviews

Food

7.3

Overall

7.4

Boarding

7.5

Comfort

7.3

Crew

7.9

Entertainment

7.3

Reviews

1 / 20
4.0
Okay

Scott,Jul 2026

DOH - ORD

Food and entertainment were really good. Seats and leg room were horrible. Stop being greedy and treating your passengers like cattle. Cramming people into seats where they have little to no leg room is inhumane. I'm over 2m tall, so I understand I'm on the high end of the spectrum, but there should be no reason why my knees were smashed up against the seat in front of me for an entire 14hr flight. I have flown internationally for over 30 years and it was the most uncomfortable flight I have ever been on. I would expect more from an airline that is trying to promote itself as a top tier option.
Qatar Airways
7.4
Good
3,733 reviews
Qatar Airways
7.4
Good
3,733 reviews

Food

7.3

Overall

7.4

Boarding

7.5

Comfort

7.3

Crew

7.9

Entertainment

7.3

Reviews

1 / 20
4.0
Okay

Scott,Jul 2026

DOH - ORD

Food and entertainment were really good. Seats and leg room were horrible. Stop being greedy and treating your passengers like cattle. Cramming people into seats where they have little to no leg room is inhumane. I'm over 2m tall, so I understand I'm on the high end of the spectrum, but there should be no reason why my knees were smashed up against the seat in front of me for an entire 14hr flight. I have flown internationally for over 30 years and it was the most uncomfortable flight I have ever been on. I would expect more from an airline that is trying to promote itself as a top tier option.
Etihad Airways
7.3
Good
1,535 reviews
Qatar Airways
7.4
Good
3,733 reviews

Food

7.3

Overall

7.4

Boarding

7.5

Comfort

7.3

Crew

7.9

Entertainment

7.3

Reviews

1 / 20
4.0
Okay

Scott,Jul 2026

DOH - ORD

Food and entertainment were really good. Seats and leg room were horrible. Stop being greedy and treating your passengers like cattle. Cramming people into seats where they have little to no leg room is inhumane. I'm over 2m tall, so I understand I'm on the high end of the spectrum, but there should be no reason why my knees were smashed up against the seat in front of me for an entire 14hr flight. I have flown internationally for over 30 years and it was the most uncomfortable flight I have ever been on. I would expect more from an airline that is trying to promote itself as a top tier option.

Related info for your journey

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

    Airlines like Etihad Airways fly from Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport in about 33h 15m. The time it takes to get you to your destination can typically vary by up to . The distance between Colombo Bandaranaike Intl Airport and Washington, D.C. Dulles Intl Airport is about 8928 mi.

  • What are the cheapest airlines flying from Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport round-trip?

    Qatar Airways, at $994, was found to be the cheapest airline from Colombo Bandaranaike Intl Airport to Washington, D.C. Dulles Intl Airport. An alternate airline flying to your destination would be Etihad Airways. Qatar Airways is priced at 23% lower than the current average price of a flight leaving 3 months from now.

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

    For one-way options, check prices for Qatar Airways. According to our data, you can fly for as low as $633. Users have also found prices from $651 and $854 on Etihad Airways and Turkish Airlines, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Colombo to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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
Alexandria
Arlington
Owings Mills
Tysons
Lanham
Reston
Chantilly
Herndon
Rockville
Hyattsville
Fredericksburg
Woodbridge
Falls Church
Sterling
Hanover
Laurel
Oxon Hill
Clinton
Hunt Valley
Silver Spring

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Top 2 airlines flying from Colombo to Dulles Intl

AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest$994Average$1,299FlexibilityNo cancel feeOn-time68%
Etihad AirwaysCheapest$1,046Average$1,222FlexibilityNo cancel feeOn-time75%

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