$1,367+ Flights from Washington, D.C. to Sri Lanka - Compare & Save Big

One-way flight from Washington, D.C. (WAS) to Sri Lanka

Highest demand for flights based on searches. 9% potential increase in price ($130 potential increase over avg. RT price).

Cheapest flight prices on average. 5% potential price decrease ($58 potential savings vs. average RT price).

Average for round-trip flights in April 2025

Find flight deals from Washington, D.C. to Sri Lanka

Cheapest flights from Washington, D.C. to Sri Lanka
Explore the most affordable flight options available from Washington, D.C. to Sri Lanka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

Tue 4/2910:05 pmIAD - CMB

1 stop37h 05mEtihad Airways

Thu 6/124:05 amCMB - IAD

1 stop21h 35mEtihad Airways

Deal found 4/27

$770

Wed 5/79:00 pmIAD - CMB

1 stop19h 35mQatar Airways

Wed 5/288:20 pmCMB - IAD

1 stop28h 50mQatar Airways

Deal found 4/28

$837

Mon 11/179:25 pmIAD - CMB

1 stop22h 00mTurkish Airlines

Wed 12/177:25 amCMB - IAD

1 stop22h 35mTurkish Airlines

Deal found 4/28

$884

Mon 11/38:05 pmIAD - CMB

1 stop20h 10mAmerican Airlines

Sat 11/297:15 pmCMB - IAD

1 stop31h 10mAmerican Airlines

Deal found 4/29

$901

Wed 5/79:00 pmIAD - CMB

2 stops40h 25mMultiple Airlines

Wed 5/288:20 pmCMB - IAD

1 stop21h 50mMultiple Airlines

Deal found 4/28

$995

Sun 9/149:40 pmIAD - CMB

2 stops28h 40mIndiGo

Sun 9/2112:50 pmCMB - IAD

2 stops40h 25mIndiGo

Deal found 4/28

$1,053

Mon 9/156:55 pmDCA - CMB

2 stops21h 40mQatar Airways

Tue 9/308:20 pmCMB - DCA

2 stops34h 01mQatar Airways

Deal found 4/28

$1,094

Mon 11/1710:00 amIAD - CMB

2 stops30h 15mAlaska Airlines

Tue 12/163:25 amCMB - IAD

1 stop23h 00mAlaska Airlines

Deal found 4/29

$1,253

Tue 10/285:50 pmBWI - CMB

2 stops44h 10mSingapore Airlines

Tue 11/1111:05 amCMB - BWI

2 stops40h 12mSingapore Airlines

Deal found 4/28

$1,346

Sun 5/116:50 pmDCA - CMB

2 stops24h 35mMultiple Airlines

Sat 5/171:05 pmCMB - DCA

2 stops40h 08mMultiple Airlines

Deal found 4/28

$1,392

Sun 5/46:50 pmDCA - CMB

2 stops28h 15mAir Canada

Thu 5/293:25 amCMB - DCA

2 stops27h 58mAir Canada

Deal found 4/28

$1,419

Wed 4/308:09 amBWI - CMB

2 stops32h 26mQatar Airways

Wed 5/74:35 amCMB - BWI

2 stops27h 00mQatar Airways

Deal found 4/29

$1,605

Best flights from Washington, D.C. to Sri Lanka
Discover carefully curated flight deals from Washington, D.C. to Sri Lanka that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 30, 2025.

Mon 10/2010:05 pmIAD - CMB

1 stop24h 55mEtihad Airways

Wed 11/124:10 amCMB - IAD

1 stop22h 25mEtihad Airways

Deal found 4/29

$813

Sun 10/269:05 pmIAD - CMB

1 stop20h 10mQatar Airways

Tue 11/117:15 pmCMB - IAD

1 stop31h 10mQatar Airways

Deal found 4/28

$867

Tue 8/2611:00 amIAD - CMB

1 stop21h 45mAir India

Tue 9/98:20 amCMB - IAD

1 stop32h 50mAir India

Deal found 4/29

$957

Sun 5/119:40 pmIAD - CMB

1 stop22h 05mTurkish Airlines

Sat 5/176:45 amCMB - IAD

1 stop38h 30mTurkish Airlines

Deal found 4/28

$965

Fri 10/311:00 amIAD - CMB

2 stops26h 25mMultiple Airlines

Sat 11/83:25 amCMB - IAD

1 stop23h 00mMultiple Airlines

Deal found 4/29

$1,044

Thu 8/281:30 pmIAD - CMB

2 stops36h 50mIndiGo

Sun 9/712:50 pmCMB - IAD

2 stops40h 25mIndiGo

Deal found 4/29

$1,088

Wed 5/147:00 amIAD - CMB

2 stops31h 20mCathay Pacific

Tue 5/271:10 amCMB - IAD

2 stops38h 15mCathay Pacific

Deal found 4/29

$1,322

Fri 5/162:25 pmIAD - CMB

2 stops32h 40mAir Canada

Sun 6/810:05 amCMB - IAD

2 stops37h 06mAir Canada

Deal found 4/29

$1,399

Sun 10/2611:15 amIAD - CMB

2 stops21h 40mEmirates

Tue 11/1110:05 pmCMB - IAD

1 stop20h 35mEmirates

Deal found 4/28

$1,415

Thu 7/249:59 amDCA - CMB

3 stops52h 06mSingapore Airlines

Sun 8/2411:05 amCMB - DCA

2 stops43h 24mSingapore Airlines

Deal found 4/28

$1,987

Wed 5/73:50 pmDCA - CMB

2 stops25h 45mQatar Airways

Wed 5/2810:30 amCMB - DCA

2 stops43h 00mQatar Airways

Deal found 4/28

$1,108

Sat 5/319:20 pmBWI - CMB

2 stops26h 10mBritish Airways

Tue 9/304:35 amCMB - BWI

2 stops24h 30mBritish Airways

Deal found 4/29

$2,606

Last-minute flights from Washington, D.C. to Sri Lanka
Discover last-minute flight deals from Washington, D.C. to Sri Lanka. Data last updated April 30, 2025 and is based on user searches.

Tue 4/2910:05 pmIAD - CMB

1 stop37h 05mEtihad Airways

Thu 6/124:05 amCMB - IAD

1 stop21h 35mEtihad Airways

Deal found 4/27

$770

Tue 4/299:00 pmIAD - CMB

1 stop19h 35mAmerican Airlines

Wed 6/113:35 amCMB - IAD

1 stop21h 35mAmerican Airlines

Deal found 4/28

$1,047

Tue 4/2910:55 amIAD - CMB

2 stops22h 05mEmirates

Thu 6/1210:30 amCMB - IAD

2 stops31h 40mEmirates

Deal found 4/28

$1,375

Sun 5/46:50 pmDCA - CMB

2 stops28h 15mAir Canada

Thu 5/293:25 amCMB - DCA

2 stops27h 58mAir Canada

Deal found 4/28

$1,419

Sun 5/49:00 pmIAD - CMB

2 stops40h 25mMalaysia Airlines

Mon 5/267:40 amCMB - IAD

2 stops34h 30mMalaysia Airlines

Deal found 4/28

$1,809

Mon 5/510:05 pmIAD - CMB

1 stop19h 15mEtihad Airways

Tue 5/279:45 pmCMB - IAD

1 stop27h 55mEtihad Airways

Deal found 4/28

$813

Mon 5/53:27 pmIAD - CMB

2 stops31h 38mAir Canada

Thu 5/293:25 amCMB - IAD

2 stops27h 13mAir Canada

Deal found 4/28

$1,419

Wed 5/79:00 pmIAD - CMB

1 stop19h 35mQatar Airways

Wed 5/288:20 pmCMB - IAD

1 stop28h 50mQatar Airways

Deal found 4/28

$837

Wed 5/79:00 pmIAD - CMB

2 stops40h 25mMultiple Airlines

Wed 5/288:20 pmCMB - IAD

1 stop21h 50mMultiple Airlines

Deal found 4/28

$995

Wed 5/73:50 pmDCA - CMB

2 stops25h 45mQatar Airways

Wed 5/2810:30 amCMB - DCA

2 stops43h 00mQatar Airways

Deal found 4/28

$1,108

Wed 5/710:55 amIAD - CMB

2 stops22h 05mEmirates

Wed 5/288:35 pmCMB - IAD

2 stops45h 35mEmirates

Deal found 4/28

$1,415

Wed 5/75:38 pmIAD - CMB

2 stops44h 27mSingapore Airlines

Tue 5/2712:50 amCMB - IAD

3 stops48h 54mSingapore Airlines

Deal found 4/28

$1,750

One-way flights from Washington, D.C. to Sri Lanka
Search for one-way flight options from Washington, D.C. to Sri Lanka. Find affordable one-way fares based on user searches. Data last updated April 30, 2025.

Fri 5/211:00 amIAD - CMB

1 stop20h 20mQatar Airways

Deal found 4/28

$501

Sun 6/2211:00 amIAD - CMB

3 stops57h 10mMultiple Airlines

Deal found 4/28

$565

Fri 6/2011:00 amIAD - CMB

2 stops42h 30mAir India

Deal found 4/28

$606

Fri 5/27:00 amDCA - CMB

2 stops31h 20mMultiple Airlines

Deal found 4/28

$688

Wed 5/146:09 amDCA - CMB

2 stops25h 11mQatar Airways

Deal found 4/28

$727

Fri 5/27:07 pmBWI - CMB

2 stops43h 13mMultiple Airlines

Deal found 4/28

$777

Mon 5/129:00 pmIAD - CMB

1 stop20h 35mJetBlue

Deal found 4/28

$796

Mon 6/1611:00 amIAD - CMB

1 stop20h 20mAmerican Airlines

Deal found 4/28

$904

Mon 5/1210:05 pmIAD - CMB

3 stops49h 55mGulf Air

Deal found 4/28

$927

Thu 6/1910:05 pmIAD - CMB

1 stop37h 05mEtihad Airways

Deal found 4/28

$934

Mon 5/1210:55 amIAD - CMB

2 stops37h 05mEmirates

Deal found 4/28

$1,101

Sat 5/33:20 pmBWI - CMB

2 stops47h 00mCathay Pacific

Deal found 4/28

$1,171

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Sri Lanka that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Mon 5/5

10:05 pm-8:30 am

1 stop24h 55m

Colombo Bandaranaike Intl

Thu 5/29

4:05 am-4:10 pm

1 stop21h 35m

$813

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Wed 5/7

9:00 pm-2:05 am

1 stop19h 35m

Colombo Bandaranaike Intl

Wed 5/28

8:20 pm-3:40 pm

1 stop28h 50m

$837

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Mon 5/12

1:30 pm-5:15 am

1 stop30h 15m

Colombo Bandaranaike Intl

Thu 5/15

6:45 am-11:45 am

1 stop38h 30m

$885

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Wed 5/7

9:00 pm-10:55 pm

2 stops40h 25m

Colombo Bandaranaike Intl

Wed 5/28

8:20 pm-8:40 am

1 stop21h 50m

$995

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Sat 5/10

9:40 pm-11:50 am

2 stops28h 40m

Colombo Bandaranaike Intl

Mon 5/26

12:50 pm-7:45 pm

2 stops40h 25m

$1,080

Washington, D.C.Colombo

DCA - CMB

DCACMB

Washington, D.C. Reagan-National

Mon 9/15

6:55 pm-2:05 am

2 stops21h 40m

Colombo Bandaranaike Intl

Mon 9/29

3:35 am-8:51 pm

2 stops26h 46m

$1,094

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Sat 5/31

11:00 am-4:05 pm

1 stop19h 35m

Colombo Bandaranaike Intl

Tue 9/30

8:20 am-7:40 am

1 stop32h 50m

$1,263

BaltimoreColombo

BWI - CMB

BWICMB

Baltimore/Washington

Fri 10/3

7:28 pm-11:35 pm

2 stops42h 37m

Colombo Bandaranaike Intl

Sun 11/9

11:05 am-4:47 pm

2 stops40h 12m

$1,372

Washington, D.C.Colombo

DCA - CMB

DCACMB

Washington, D.C. Reagan-National

Sun 5/11

6:50 pm-4:55 am

2 stops24h 35m

Colombo Bandaranaike Intl

Sat 5/17

1:05 pm-7:43 pm

2 stops40h 08m

$1,392

Washington, D.C.Colombo

IAD - CMB

IADCMB

Washington, D.C. Dulles Intl

Fri 5/16

2:25 pm-8:35 am

2 stops32h 40m

Colombo Bandaranaike Intl

Sun 6/8

10:05 am-1:41 pm

2 stops37h 06m

$1,399

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 38 results

Best time to book a flight from Washington, D.C. to Sri Lanka

Have a flexible travel schedule? Discover the best time to fly to Sri Lanka from Washington, D.C. 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. to Sri Lanka

What is the cheapest month to book a flight from Washington, D.C. to Sri Lanka?

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to Sri Lanka (average of $1,049). Flying from Washington, D.C. to Sri Lanka 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 WAS to LK?

When flying from Washington, D.C. to Sri Lanka, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Sri Lanka by month

In terms of precipitation, rainfall in Sri Lanka 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 Sri Lanka when rainfall is around 2.4 in.

Temperature in Sri Lanka by month

If weather is an important factor for your trip to Sri Lanka, 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 Sri Lanka

Peruse reviews from past customers who have flown with Singapore Airlines, Emirates and Cathay Pacific from Washington, D.C. to Sri Lanka to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

8.1

Very good

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

8.1

Very good

8.1

Very good

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Emirates

8.0

Very good

3,215 reviews

8.1

Very good

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Cathay Pacific

7.5

Good

852 reviews

8.1

Very good

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Qatar Airways

7.4

Good

3,563 reviews

8.1

Very good

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Etihad Airways

7.4

Good

1,203 reviews

8.1

Very good