$286 Cheap Flights from Boston (BOS) to Cusco (CUZ)

View $286 flight on Thu, Jun 12, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Boston to Cusco (BOS-CUZ)

Prices were available within the past 7 days and start at $286 for one-way flights and $582 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

avianca
Tue, Sep 2 - Wed, Sep 10
BOS
Boston
CUZ
Cusco
$582 Roundtrip, found 10 hours ago
$582
Roundtrip
found 10 hours ago
Select avianca flight, departing Tue, Sep 2 from Boston to Cusco, returning Wed, Sep 10, priced at $582 found 10 hours ago
avianca
Mon, Jan 12 - Mon, Jan 19
BOS
Boston
CUZ
Cusco
$594 Roundtrip, found 6 hours ago
$594
Roundtrip
found 6 hours ago
Select avianca flight, departing Mon, Jan 12 from Boston to Cusco, returning Mon, Jan 19, priced at $594 found 6 hours ago
avianca
Thu, Jun 12 - Wed, Jun 18
BOS
Boston
CUZ
Cusco
$598 Roundtrip, just found
$598
Roundtrip
just found
Select avianca flight, departing Thu, Jun 12 from Boston to Cusco, returning Wed, Jun 18, priced at $598 just found
avianca
Fri, Oct 10 - Fri, Oct 24
BOS
Boston
CUZ
Cusco
$610 Roundtrip, found 1 hour ago
$610
Roundtrip
found 1 hour ago
Select avianca flight, departing Fri, Oct 10 from Boston to Cusco, returning Fri, Oct 24, priced at $610 found 1 hour ago
avianca
Fri, Oct 10 - Fri, Oct 24
BOS
Boston
CUZ
Cusco
$611 Roundtrip, found 1 hour ago
$611
Roundtrip
found 1 hour ago
Select avianca flight, departing Fri, Oct 10 from Boston to Cusco, returning Fri, Oct 24, priced at $611 found 1 hour ago
avianca
Sat, Jul 12 - Fri, Jul 18
BOS
Boston
CUZ
Cusco
$614 Roundtrip, found 6 hours ago
$614
Roundtrip
found 6 hours ago
Select avianca flight, departing Sat, Jul 12 from Boston to Cusco, returning Fri, Jul 18, priced at $614 found 6 hours ago
United
Sun, Mar 1 - Sat, Mar 7
BOS
Boston
CUZ
Cusco
$691 Roundtrip, found 5 days ago
$691
Roundtrip
found 5 days ago
Select United flight, departing Sun, Mar 1 from Boston to Cusco, returning Sat, Mar 7, priced at $691 found 5 days ago
American Airlines
Thu, Aug 28 - Fri, Sep 12
BOS
Boston
CUZ
Cusco
$773 Roundtrip, found 3 hours ago
$773
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Thu, Aug 28 from Boston to Cusco, returning Fri, Sep 12, priced at $773 found 3 hours ago
Delta
Wed, Jun 11 - Tue, Jun 17
BOS
Boston
CUZ
Cusco
$773 Roundtrip, just found
$773
Roundtrip
just found
Select Delta flight, departing Wed, Jun 11 from Boston to Cusco, returning Tue, Jun 17, priced at $773 just found
LATAM Airlines Group
Wed, Jun 11 - Tue, Jun 17
BOS
Boston
CUZ
Cusco
$851 Roundtrip, just found
$851
Roundtrip
just found
Select LATAM Airlines Group flight, departing Wed, Jun 11 from Boston to Cusco, returning Tue, Jun 17, priced at $851 just found
Flights from Boston (BOS) to Cusco (CUZ)
Origin airport
Logan Intl.
Destination airport
Alejandro Velasco Astete Intl.
Airlines serving
American Airlines, Delta, LATAM Airlines Group, avianca
Roundtrip price
$582
Distance
3862 mi

Boston to Cusco Flights

The cheapest times to fly from Boston to Cusco

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 Cusco are during the month of September. You can find some of the cheapest flights from Boston to Cusco with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Boston to Cusco

Sunday is one of the best days to book for cheap flights from Boston to Cusco: 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 Cusco

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 Cusco in 2025. You can also book with separate airlines for your outbound and return journeys, from $286 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 Cusco 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 Cusco 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 Alejandro Velasco Astete Intl. Airport (CUZ) cost?
Discover the latest flight deals from BOS to CUZ 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 CUZ?
The cheapest flights from BOS to CUZ 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 CUZ?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from BOS to CUZ. 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 Alejandro Velasco Astete Intl. Airport (CUZ)?
Nonstop flights from Logan Intl. Airport (BOS) to Alejandro Velasco Astete Intl. Airport (CUZ) aren’t available daily, so you’ll have to take a flight with a layover. Explore your options with Expedia’s filter tool. Enter your travel details and click on either “1 Stop” or “2+ Stops.”
What day of the week has the most flights from BOS to CUZ?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change depending on a number of factors, such as the airline and season.*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 Alejandro Velasco Astete Intl. Airport (CUZ)?
Book a flight from Logan Intl. Airport (BOS) to Alejandro Velasco Astete Intl. Airport (CUZ) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures later than this have a 22% higher chance of being canceled, on average.**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 Alejandro Velasco Astete Intl. Airport (CUZ) last-minute?
Booking your plane ticket from BOS to CUZ just before your journey is usually more expensive. But if there’s some wiggle room with your travel dates and times, you could land a cheap last-minute fare.
Is it cheaper to book a BOS to CUZ flight and hotel package?
You can save money by booking a BOS to CUZ flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it’s easy to manage it all in one place. Once you’ve chosen your preferred accommodations and flights, consider adding extras like car rentals, tours and activities.
Can I cancel or change the date of my flight from Logan Intl. Airport (BOS) to Alejandro Velasco Astete Intl. Airport (CUZ)?
Typically, it’s possible to reschedule or cancel your BOS to CUZ flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline’s policies in your itinerary to see what changes are allowed and if any costs are involved. You’ll also find further details on our Customer Service portal.

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*Available to One Key members.