HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sri Lanka

$439+ Cheap flights from Boston (BOS) to Sri Lanka

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 3/8. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CMB
Apr 2 — Apr 91
Thu 4/2
Thu 4/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boston to Sri Lanka with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Boston to Sri Lanka

Cheapest flights from Boston to Sri Lanka
Explore the most affordable flight options available from Boston to Sri Lanka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 3, 2026.

This CrystalTravel deal was found by Cheapflights users on 2/28. 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.
Thu 10/14:25 pm
BOS
-
CMB
1 stop30h 40m
Etihad Airways
Thu 10/159:50 pm
CMB
-
BOS
1 stop26h 20m
Etihad Airways
Deal found 2/28$859
This Gotogate deal was found by Cheapflights users on 2/27. 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.
Sun 9/64:25 pm
BOS
-
CMB
1 stop37h 00m
Etihad Airways
Mon 9/214:10 am
CMB
-
BOS
1 stop20h 00m
Etihad Airways
Deal found 2/27$873
This oojo deal was found by Cheapflights users on 2/27. 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 3/114:40 pm
BOS
-
CMB
1 stop24h 40m
Etihad Airways
Wed 3/259:50 am
CMB
-
BOS
1 stop38h 50m
Etihad Airways
Deal found 2/27$875
This oojo deal was found by Cheapflights users on 3/2. 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.
Thu 4/304:25 pm
BOS
-
CMB
1 stop25h 05m
Etihad Airways
Tue 5/264:10 am
CMB
-
BOS
1 stop20h 00m
Etihad Airways
Deal found 3/2$876
This CrystalTravel deal was found by Cheapflights users on 2/27. 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.
Wed 3/184:40 pm
BOS
-
CMB
1 stop30h 05m
Etihad Airways
Wed 4/14:10 am
CMB
-
BOS
1 stop20h 00m
Etihad Airways
Deal found 2/27$884
This lastminute.com deal was found by Cheapflights users on 3/2. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/53:40 pm
BOS
-
CMB
1 stop18h 05m
Etihad Airways
Wed 3/184:00 am
CMB
-
BOS
1 stop20h 40m
Etihad Airways
Deal found 3/2$886
This Gotogate deal was found by Cheapflights users on 2/28. 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.
Sun 3/154:40 pm
BOS
-
CMB
1 stop24h 40m
Etihad Airways
Wed 3/189:30 pm
CMB
-
BOS
1 stop27h 10m
Etihad Airways
Deal found 2/28$888
This Indian Eagle deal was found by Cheapflights users on 3/2. 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 Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/269:05 pm
BOS
-
CMB
1 stop18h 20m
Qatar Airways
Mon 12/73:25 am
CMB
-
BOS
1 stop21h 25m
Qatar Airways
Deal found 3/2$891
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/164:40 pm
BOS
-
CMB
1 stop18h 05m
Etihad Airways
Wed 3/254:00 am
CMB
-
BOS
1 stop20h 40m
Etihad Airways
Deal found 3/3$893
This FlightHub deal was found by Cheapflights users on 3/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/110:00 pm
BOS
-
CMB
1 stop18h 35m
Qatar Airways
Thu 10/84:35 am
CMB
-
BOS
1 stop20h 10m
Qatar Airways
Deal found 3/1$897
This Kiwi.com deal was found by Cheapflights users on 3/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/84:40 pm
BOS
-
CMB
1 stop18h 05m
Etihad Airways
Wed 3/184:00 am
CMB
-
BOS
1 stop20h 40m
Etihad Airways
Deal found 3/1$901

Find flight deals from Boston to Sri Lanka

Keep the following information in mind while searching for Boston to Sri Lanka flight deals. Data was last updated March 3, 2026.

Round-trip from

$875
(oojo)

One-way from

$439
(CrystalTravel)

Popular in

December

Cheapest in

September

Average price

$1,032
From Boston Logan Intl to Sri Lanka
Search Deals
One-way flight from Boston Logan Intl to Sri Lanka
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($185 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($78 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Sri Lanka 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 March 3, 2026.
Use the filters below to find and compare flights from Boston to Sri Lanka that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonColombo

BOS - CMB

BOSCMB

Boston Logan Intl

Thu 4/30

3:59 pm-3:05 am

2 stops25h 36m

Colombo Bandaranaike Intl

Thu 5/28

7:15 pm-5:07 pm

2 stops31h 22m

$1,012

BostonColombo

BOS - CMB

BOSCMB

Boston Logan Intl

Wed 8/5

4:25 pm-2:55 pm

1 stop37h 00m

Colombo Bandaranaike Intl

Sat 8/15

4:10 am-2:40 pm

1 stop20h 00m

$1,021

BostonColombo

BOS - CMB

BOSCMB

Boston Logan Intl

Sun 3/15

9:40 pm-4:30 pm

1 stop33h 20m

Colombo Bandaranaike Intl

Mon 3/23

3:25 am-2:55 pm

1 stop21h 00m

$1,279

BostonColombo

BOS - CMB

BOSCMB

Boston Logan Intl

Sat 3/14

9:40 pm-2:45 am

1 stop19h 35m

Colombo Bandaranaike Intl

Mon 3/23

3:25 am-2:55 pm

1 stop21h 00m

$1,316

BostonColombo

BOS - CMB

BOSCMB

Boston Logan Intl

Sat 3/14

9:40 pm-1:55 am

1 stop18h 45m

Colombo Bandaranaike Intl

Wed 3/25

11:15 am-2:55 pm

1 stop37h 10m

$1,319

BostonColombo

BOS - CMB

BOSCMB

Boston Logan Intl

Thu 7/9

10:00 pm-2:05 am

1 stop18h 35m

Colombo Bandaranaike Intl

Thu 7/23

3:35 am-3:15 pm

1 stop21h 10m

$1,348

BostonColombo

BOS - CMB

BOSCMB

Boston Logan Intl

Wed 4/1

11:05 pm-6:30 pm

2 stops33h 55m

Colombo Bandaranaike Intl

Wed 4/8

8:35 pm-2:10 pm

2 stops51h 05m

$1,409

BostonColombo

BOS - CMB

BOSCMB

Boston Logan Intl

Thu 4/30

5:02 pm-10:45 am

3 stops32h 13m

Colombo Bandaranaike Intl

Tue 5/26

11:45 am-6:58 pm

3 stops40h 43m

$1,447

BostonColombo

BOS - CMB

BOSCMB

Boston Logan Intl

Sun 4/12

6:40 pm-6:30 pm

3 stops38h 20m

Colombo Bandaranaike Intl

Sun 4/19

10:05 am-5:57 pm

2 stops41h 22m

$1,501

BostonColombo

BOS - CMB

BOSCMB

Boston Logan Intl

Thu 6/18

9:50 pm-6:45 am

2 stops47h 25m

Colombo Bandaranaike Intl

Fri 7/10

4:10 am-2:40 pm

1 stop20h 00m

$1,568

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/1

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Boston to Sri Lanka

Have a flexible travel schedule? Discover the best time to fly to Sri Lanka from Boston 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 Boston to Sri Lanka

What is the cheapest month to book a flight from Boston to Sri Lanka?

Currently, September is the cheapest month in which you can book a flight from Boston to Sri Lanka (average of $758). Flying from Boston to Sri Lanka in December is currently the most expensive (average of $1,299). 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.

Reviews of airlines servicing Sri Lanka

Get insights into the airlines that provide service to Sri Lanka. 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 Sri Lanka. Reviews last updated March 3, 2026.
Read reviews from past customers who have flown Cathay Pacific, Qatar Airways, and Etihad Airways from Boston to Sri Lanka. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Cathay Pacific
7.6
Good
1,187 reviews

Entertainment

7.8

Boarding

7.9

Overall

7.6

Comfort

7.6

Food

7.3

Crew

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.
Cathay Pacific
7.6
Good
1,187 reviews
Cathay Pacific
7.6
Good
1,187 reviews

Entertainment

7.8

Boarding

7.9

Overall

7.6

Comfort

7.6

Food

7.3

Crew

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.
Qatar Airways
7.4
Good
3,745 reviews
Cathay Pacific
7.6
Good
1,187 reviews

Entertainment

7.8

Boarding

7.9

Overall

7.6

Comfort

7.6

Food

7.3

Crew

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.
Etihad Airways
7.3
Good
1,424 reviews
Cathay Pacific
7.6
Good
1,187 reviews

Entertainment

7.8

Boarding

7.9

Overall

7.6

Comfort

7.6

Food

7.3

Crew

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.
JetBlue
7.2
Good
2,896 reviews
Cathay Pacific
7.6
Good
1,187 reviews

Entertainment

7.8

Boarding

7.9

Overall

7.6

Comfort

7.6

Food

7.3

Crew

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.
American Airlines
7.1
Good
11,377 reviews
Cathay Pacific
7.6
Good
1,187 reviews

Entertainment

7.8

Boarding

7.9

Overall

7.6

Comfort

7.6

Food

7.3

Crew

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.

Related info for your journey

Find useful and relevant information for your journey from Boston to Sri Lanka. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Boston to Sri Lanka?

    Boston Logan Intl (BOS), located 2.6 mi from the city center, is the airport you fly out of when you book flights from Boston to Sri Lanka.

  • How long is the flight from Boston to Sri Lanka?

    Qatar Airways can get you from Boston to Sri Lanka in just under 25h 36m. Your travel time can differ by up to . The distance between Boston and Sri Lanka is about 8548 mi.

  • Can I find deals for flights from Boston to Sri Lanka that include hotel bookings?

    Yes. In addition to deals on Boston to Sri Lanka flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Sri Lanka?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Sri Lanka.

  • Can I find deals for business class flights from Boston to Sri Lanka?

    Yes. Cheapflights offers flight deals from Boston to Sri Lanka 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 Boston to Sri Lanka?

    Currently, September is the cheapest month in which you can book a flight from Boston to Sri Lanka (average of $758). Flying from Boston to Sri Lanka in December is currently the most expensive (average of $1,299). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 6 airlines flying from Boston to Sri Lanka

Discover the top 6 airlines that operate flights from Boston to Sri Lanka. 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 March 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$716Average$763FlexibilityNo cancel feeOn-time72%
Qatar AirwaysCheapest$871Average$1,176FlexibilityNo cancel feeOn-time68%
Etihad AirwaysCheapest$884Average$1,188FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$935Average$1,279FlexibilityNo cancel feeOn-time71%
Turkish AirlinesCheapest$959Average$1,149FlexibilityNo cancel feeOn-time77%
JetBlueCheapest$1,637Average$1,996FlexibilityNo cancel feeOn-time62%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights