$524 Cheap Flights from Boston (BOS) to Colombo (CMB)

View $524 flight on Mon, Aug 11, 2025Opens in a new window

Popular airlines from Logan International Airport (BOS) to Bandaranaike Intl. Airport (CMB)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Boston to Colombo (BOS-CMB)

Prices were available within the past 7 days and start at $524 for one-way flights and $831 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Cathay Pacific
Tue, Sep 2 - Tue, Sep 9
BOS
Boston
CMB
Colombo
$831 Roundtrip, just found
$831
Roundtrip
just found
Select Cathay Pacific flight, departing Tue, Sep 2 from Boston to Colombo, returning Tue, Sep 9, priced at $831 just found
Etihad Airways
Fri, Aug 29 - Fri, Oct 3
BOS
Boston
CMB
Colombo
$961 Roundtrip, found 16 hours ago
$961
Roundtrip
found 16 hours ago
Select Etihad Airways flight, departing Fri, Aug 29 from Boston to Colombo, returning Fri, Oct 3, priced at $961 found 16 hours ago
Etihad Airways
Fri, Aug 29 - Sat, Sep 13
BOS
Boston
CMB
Colombo
$982 Roundtrip, found 1 hour ago
$982
Roundtrip
found 1 hour ago
Select Etihad Airways flight, departing Fri, Aug 29 from Boston to Colombo, returning Sat, Sep 13, priced at $982 found 1 hour ago
Cathay Pacific
Mon, Aug 25 - Wed, Sep 24
BOS
Boston
CMB
Colombo
$997 Roundtrip, found 6 hours ago
$997
Roundtrip
found 6 hours ago
Select Cathay Pacific flight, departing Mon, Aug 25 from Boston to Colombo, returning Wed, Sep 24, priced at $997 found 6 hours ago
Turkish Airlines
Tue, Oct 7 - Tue, Nov 11
BOS
Boston
CMB
Colombo
$1,030 Roundtrip, found 4 days ago
$1,030
Roundtrip
found 4 days ago
Select Turkish Airlines flight, departing Tue, Oct 7 from Boston to Colombo, returning Tue, Nov 11, priced at $1,030 found 4 days ago
Qatar Airways
Wed, Sep 17 - Wed, Oct 1
BOS
Boston
CMB
Colombo
$1,039 Roundtrip, found 5 days ago
$1,039
Roundtrip
found 5 days ago
Select Qatar Airways flight, departing Wed, Sep 17 from Boston to Colombo, returning Wed, Oct 1, priced at $1,039 found 5 days ago
Alaska Airlines
Tue, Oct 28 - Fri, Nov 7
BOS
Boston
CMB
Colombo
$1,073 Roundtrip, found 9 hours ago
$1,073
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Tue, Oct 28 from Boston to Colombo, returning Fri, Nov 7, priced at $1,073 found 9 hours ago
JetBlue Airways
Tue, Oct 28 - Fri, Nov 7
BOS
Boston
CMB
Colombo
$1,073 Roundtrip, found 9 hours ago
$1,073
Roundtrip
found 9 hours ago
Select JetBlue Airways flight, departing Tue, Oct 28 from Boston to Colombo, returning Fri, Nov 7, priced at $1,073 found 9 hours ago
American Airlines
Tue, Sep 2 - Tue, Sep 9
BOS
Boston
CMB
Colombo
$1,073 Roundtrip, just found
$1,073
Roundtrip
just found
Select American Airlines flight, departing Tue, Sep 2 from Boston to Colombo, returning Tue, Sep 9, priced at $1,073 just found
Emirates
Tue, Sep 2 - Tue, Sep 9
BOS
Boston
CMB
Colombo
$1,507 Roundtrip, just found
$1,507
Roundtrip
just found
Select Emirates flight, departing Tue, Sep 2 from Boston to Colombo, returning Tue, Sep 9, priced at $1,507 just found
Flights from Boston (BOS) to Colombo (CMB)
Origin airport
Logan Intl.
Destination airport
Bandaranaike Intl.
Airlines serving
Air Canada, Air France, Alaska Airlines, American Airlines, British Airways, Cathay Pacific, Emirates, Etihad Airways, Gulf Air, JetBlue Airways, Korean Air, Lufthansa, Malaysia Airlines, Qatar Airways, SriLankan Airlines, Turkish Airlines
Roundtrip price
$831
Distance
8553 mi

Boston to Colombo Flights

The cheapest times to fly from Boston to Colombo

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Boston to Colombo are during the month of September. You can find some of the cheapest flights from Boston to Colombo with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boston to Colombo

Sunday is one of the best days to book for cheap flights from Boston to Colombo: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Boston to Colombo

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Boston to Colombo in 2025. You can also book with separate airlines for your outbound and return journeys, from $524 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Boston to Colombo flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Boston to Colombo airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Logan Intl. Airport (BOS) to Bandaranaike Intl. Airport (CMB) cost?
Discover the latest flight deals from BOS to CMB by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from BOS to CMB?
The cheapest flights from BOS to CMB are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from BOS to CMB?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from BOS to CMB. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Logan Intl. Airport (BOS) to Bandaranaike Intl. Airport (CMB)?
There aren't any daily nonstop flights departing from Logan Intl. Airport (BOS) to Bandaranaike Intl. Airport (CMB). But you can book flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from BOS to CMB?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Logan Intl. Airport (BOS) to Bandaranaike Intl. Airport (CMB)?
To land at Bandaranaike Intl. Airport (CMB) on time, pick a flight that leaves Logan Intl. Airport (BOS) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Logan Intl. Airport (BOS) to Bandaranaike Intl. Airport (CMB) last-minute?
Last-minute bookings from BOS to CMB are usually more expensive. To secure the best prices, start searching for flights early. That said, if you can play around with your travel dates, you may score a cheap fare right before your trip.
Is it cheaper to book a BOS to CMB flight and hotel package?
You'll generally save money by securing a BOS to CMB flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. After choosing your ideal flights and accommodations, you can add extras such as activities, car rentals and tours.
Can I cancel or change the date of my flight from Logan Intl. Airport (BOS) to Bandaranaike Intl. Airport (CMB)?
Generally, it's possible to reschedule or cancel your BOS to CMB flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more details on our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.