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$412+ 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 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CMB
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
1 adult, Economy
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Cheap 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 January 8, 2026.

Round-trip from

$860
(CrystalTravel)

One-way from

$412
(SmartFares)

Popular in

December

Cheapest in

September

Average price

$1,138
From Boston Logan Intl to Sri Lanka
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One-way flight from Boston Logan Intl to Sri Lanka
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Highest demand for flights based on searches. 14% potential increase in price ($197 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($76 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find 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 January 8, 2026.

This CrystalTravel deal was found by Cheapflights users on 1/7. 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 1/213:40 pmBOS - CMB
1 stop18h 05mEtihad Airways
Tue 2/174:00 amCMB - BOS
1 stop20h 40mEtihad Airways
Deal found 1/7$860
This CrystalTravel deal was found by Cheapflights users on 1/6. 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 2/253:40 pmBOS - CMB
1 stop18h 05mEtihad Airways
Thu 4/24:10 amCMB - BOS
1 stop20h 15mEtihad Airways
Deal found 1/6$868
This Gotogate deal was found by Cheapflights users on 1/7. 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 1/253:40 pmBOS - CMB
1 stop30h 05mEtihad Airways
Wed 2/259:50 amCMB - BOS
1 stop38h 50mEtihad Airways
Deal found 1/7$883
This CrystalTravel deal was found by Cheapflights users on 1/6. 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 1/223:40 pmBOS - CMB
1 stop18h 05mEtihad Airways
Wed 2/114:00 amCMB - BOS
1 stop20h 40mEtihad Airways
Deal found 1/6$886
This CrystalTravel deal was found by Cheapflights users on 1/8. 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 2/43:40 pmBOS - CMB
1 stop18h 05mEtihad Airways
Sat 2/144:00 amCMB - BOS
1 stop20h 40mEtihad Airways
Deal found 1/8$887
This CrystalTravel deal was found by Cheapflights users on 1/6. 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 1/283:40 pmBOS - CMB
1 stop18h 05mEtihad Airways
Tue 2/34:00 amCMB - BOS
1 stop20h 40mEtihad Airways
Deal found 1/6$891
This CrystalTravel deal was found by Cheapflights users on 1/6. 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.
Mon 2/233:40 pmBOS - CMB
1 stop30h 05mEtihad Airways
Fri 3/64:00 amCMB - BOS
1 stop20h 40mEtihad Airways
Deal found 1/6$899
This Gotogate deal was found by Cheapflights users on 1/7. 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.
Sat 1/243:40 pmBOS - CMB
1 stop24h 40mEtihad Airways
Fri 2/64:20 pmCMB - BOS
1 stop32h 20mEtihad Airways
Deal found 1/7$903
This CrystalTravel deal was found by Cheapflights users on 1/7. 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.
Mon 3/304:30 pmBOS - CMB
1 stop18h 35mEtihad Airways
Mon 4/64:10 amCMB - BOS
1 stop20h 15mEtihad Airways
Deal found 1/7$904
This CrystalTravel deal was found by Cheapflights users on 1/6. 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.
Fri 2/203:40 pmBOS - CMB
1 stop30h 05mEtihad Airways
Sat 3/74:00 amCMB - BOS
1 stop20h 40mEtihad Airways
Deal found 1/6$905
This CrystalTravel deal was found by Cheapflights users on 1/7. 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 4/154:30 pmBOS - CMB
1 stop25h 00mEtihad Airways
Mon 4/274:20 pmCMB - BOS
1 stop32h 05mEtihad Airways
Deal found 1/7$907
This CrystalTravel deal was found by Cheapflights users on 1/8. 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.
Mon 9/74:30 pmBOS - CMB
1 stop30h 35mEtihad Airways
Wed 9/309:50 pmCMB - BOS
1 stop26h 35mEtihad Airways
Deal found 1/8$912

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 January 8, 2026.
Use the filters below to find and compare flights from Boston to Sri Lanka that are best for you.

Fly from

Boston

Fly to

Sri Lanka

Route

Depart

Return

Price

BostonColombo

BOS - CMB

BOSCMB

Boston Logan Intl

Sun 1/25

3:40 pm-8:15 am

1 stop30h 05m

Colombo Bandaranaike Intl

Wed 2/25

9:50 am-2:10 pm

1 stop38h 50m

$883

BostonColombo

BOS - CMB

BOSCMB

Boston Logan Intl

Fri 3/6

3:40 pm-8:15 am

1 stop30h 05m

Colombo Bandaranaike Intl

Fri 3/20

4:00 am-3:10 pm

1 stop20h 40m

$925

BostonColombo

BOS - CMB

BOSCMB

Boston Logan Intl

Thu 3/12

4:40 pm-8:15 pm

1 stop18h 05m

Colombo Bandaranaike Intl

Mon 3/23

9:30 pm-3:10 pm

1 stop27h 10m

$953

BostonColombo

BOS - CMB

BOSCMB

Boston Logan Intl

Sun 3/8

4:40 pm-8:15 pm

1 stop18h 05m

Colombo Bandaranaike Intl

Mon 3/23

9:30 pm-3:10 pm

1 stop27h 10m

$953

BostonColombo

BOS - CMB

BOSCMB

Boston Logan Intl

Sat 1/24

3:40 pm-3:15 pm

1 stop37h 05m

Colombo Bandaranaike Intl

Fri 2/6

9:30 pm-2:10 pm

1 stop27h 10m

$961

BostonColombo

BOS - CMB

BOSCMB

Boston Logan Intl

Fri 2/27

3:40 pm-8:15 pm

1 stop18h 05m

Colombo Bandaranaike Intl

Sat 3/14

4:20 pm-3:10 pm

1 stop32h 20m

$961

BostonColombo

BOS - CMB

BOSCMB

Boston Logan Intl

Sun 3/1

6:00 am-3:00 pm

2 stops22h 30m

Colombo Bandaranaike Intl

Sun 3/15

8:20 am-9:55 pm

3 stops47h 05m

$990

BostonColombo

BOS - CMB

BOSCMB

Boston Logan Intl

Tue 3/10

4:40 pm-8:15 pm

1 stop18h 05m

Colombo Bandaranaike Intl

Mon 3/23

5:15 pm-3:10 pm

2 stops31h 25m

$1,085

BostonColombo

BOS - CMB

BOSCMB

Boston Logan Intl

Thu 4/30

3:59 pm-3:05 am

2 stops25h 36m

Colombo Bandaranaike Intl

Tue 5/26

7:45 pm-12:17 pm

2 stops26h 02m

$1,095

BostonColombo

BOS - CMB

BOSCMB

Boston Logan Intl

Wed 4/15

5:09 pm-3:05 am

2 stops24h 26m

Colombo Bandaranaike Intl

Mon 4/27

7:45 pm-2:20 pm

2 stops28h 05m

$1,098

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/8

Showing 1-10 of 24 results
1
2
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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 January 8, 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
1,126 reviews

Boarding

7.9

Comfort

7.6

Food

7.3

Crew

8.1

Entertainment

7.8

Overall

7.6

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
1,126 reviews
Cathay Pacific
7.6
Good
1,126 reviews

Boarding

7.9

Comfort

7.6

Food

7.3

Crew

8.1

Entertainment

7.8

Overall

7.6

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
3,702 reviews
Cathay Pacific
7.6
Good
1,126 reviews

Boarding

7.9

Comfort

7.6

Food

7.3

Crew

8.1

Entertainment

7.8

Overall

7.6

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
1,361 reviews
Cathay Pacific
7.6
Good
1,126 reviews

Boarding

7.9

Comfort

7.6

Food

7.3

Crew

8.1

Entertainment

7.8

Overall

7.6

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
7.2
Good
11,097 reviews
Cathay Pacific
7.6
Good
1,126 reviews

Boarding

7.9

Comfort

7.6

Food

7.3

Crew

8.1

Entertainment

7.8

Overall

7.6

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
2,892 reviews
Cathay Pacific
7.6
Good
1,126 reviews

Boarding

7.9

Comfort

7.6

Food

7.3

Crew

8.1

Entertainment

7.8

Overall

7.6

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?

    Etihad Airways can get you from Boston to Sri Lanka in just under 30h 05m. 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

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Top 5 airlines flying from Boston to Sri Lanka

Discover the top 5 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 January 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$716Average$763FlexibilityNo cancel feeOn-time72%
Etihad AirwaysCheapest$882Average$1,184FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$907Average$1,201FlexibilityNo cancel feeOn-time68%
American AirlinesCheapest$935Average$1,444FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$1,637Average$1,955FlexibilityNo cancel feeOn-time62%

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