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Cheap flights from Boston to Cusco from $405

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Cusco departing on 12/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Boston to Cusco

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:45 am - 10:46 amBOS-CUZ
29h 01m2 stops
Multiple Airlines Logo
12:52 pm - 6:02 pmCUZ-BOS
29h 10m3 stops
$597Multiple Airlines
Find Deal
Thu, Jan 22 - Wed, Jan 28
Multiple Airlines Logo
7:30 pm - 7:26 amBOS-CUZ
35h 56m3 stops
Multiple Airlines Logo
6:30 pm - 6:02 pmCUZ-BOS
23h 32m3 stops
$661Multiple Airlines
Find Deal
Thu, Jan 22 - Wed, Jan 28
Multiple Airlines Logo
3:25 pm - 4:41 pmBOS-CUZ
25h 16m2 stops
Multiple Airlines Logo
9:42 pm - 8:49 pmCUZ-BOS
23h 07m3 stops
$768Multiple Airlines
Find Deal
Mon, Nov 17 - Wed, Nov 26
Avianca Logo
3:25 pm - 11:20 amBOS-CUZ
19h 55m2 stops
Avianca Logo
12:25 pm - 1:50 pmCUZ-BOS
25h 25m2 stops
$770Avianca
Find Deal
Mon, Nov 3 - Sun, Nov 9
LATAM Airlines Logo
5:40 am - 12:45 amBOS-CUZ
19h 05m2 stops
LATAM Airlines Logo
8:10 pm - 2:48 pmCUZ-BOS
18h 38m2 stops
$799LATAM Airlines
Find Deal
Thu, Jan 22 - Wed, Jan 28
LATAM Airlines Logo
9:55 am - 5:15 pmBOS-CUZ
32h 20m2 stops
LATAM Airlines Logo
10:45 pm - 11:00 pmCUZ-BOS
24h 15m2 stops
$807LATAM Airlines
Find Deal
Thu, Oct 30 - Mon, Nov 3
LATAM Airlines Logo
7:30 am - 6:15 amBOS-CUZ
23h 45m2 stops
LATAM Airlines Logo
12:05 am - 11:00 pmCUZ-BOS
22h 55m2 stops
$818LATAM Airlines
Find Deal
Sat, Nov 1 - Fri, Nov 7
LATAM Airlines Logo
9:59 am - 6:45 amBOS-CUZ
20h 46m2 stops
LATAM Airlines Logo
9:40 am - 10:18 amCUZ-BOS
24h 38m2 stops
$827LATAM Airlines
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Sun, Nov 23 - Fri, Nov 28
Avianca Logo
7:55 am - 11:20 amBOS-CUZ
27h 25m1 stop
Avianca Logo
5:10 pm - 6:35 amCUZ-BOS
13h 25m1 stop
$926Avianca
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Tue, Nov 4 - Mon, Nov 10
Avianca Logo
3:25 pm - 11:20 amBOS-CUZ
19h 55m2 stops
Avianca Logo
5:10 pm - 6:35 amCUZ-BOS
13h 25m1 stop
$936Avianca
Find Deal
Sun, Nov 2 - Mon, Nov 10

Avianca flights from Boston to Cusco

Our best Avianca deals on Boston to Cusco flight tickets
Avianca
Nov 3
BOS3:25 pmBoston Logan Intl
19h 55m
2 stops
CUZ11:20 amCusco Velazco Astete
Nov 9
CUZ12:25 pmCusco Velazco Astete
25h 25m
2 stops
BOS1:50 pmBoston Logan Intl
$770
Find similar
Avianca
Nov 4
BOS7:55 amBoston Logan Intl
27h 25m
1 stop
CUZ11:20 amCusco Velazco Astete
Nov 10
CUZ5:10 pmCusco Velazco Astete
13h 25m
1 stop
BOS6:35 amBoston Logan Intl
$926
Find similar
Avianca
Nov 2
BOS3:25 pmBoston Logan Intl
19h 55m
2 stops
CUZ11:20 amCusco Velazco Astete
Nov 10
CUZ5:10 pmCusco Velazco Astete
13h 25m
1 stop
BOS6:35 amBoston Logan Intl
$936
Find similar

LATAM Airlines flights from Boston to Cusco

Our best LATAM Airlines deals on Boston to Cusco flight tickets
LATAM Airlines
Jan 22
BOS5:40 amBoston Logan Intl
19h 05m
2 stops
CUZ12:45 amCusco Velazco Astete
Jan 28
CUZ8:10 pmCusco Velazco Astete
18h 38m
2 stops
BOS2:48 pmBoston Logan Intl
$799
Find similar
LATAM Airlines
Oct 30
BOS9:55 amBoston Logan Intl
32h 20m
2 stops
CUZ5:15 pmCusco Velazco Astete
Nov 3
CUZ10:45 pmCusco Velazco Astete
24h 15m
2 stops
BOS11:00 pmBoston Logan Intl
$807
Find similar
LATAM Airlines
Nov 1
BOS7:30 amBoston Logan Intl
23h 45m
2 stops
CUZ6:15 amCusco Velazco Astete
Nov 7
CUZ12:05 amCusco Velazco Astete
22h 55m
2 stops
BOS11:00 pmBoston Logan Intl
$818
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Boston to Cusco 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, momondo users made 832,500 searches. Data last updated October 14, 2025.
Use the filters below to find and compare flights from Boston to Cusco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonCusco

BOS - CUZ

BOSCUZ

Boston Logan Intl

Thu 1/22

5:45 am-10:46 am

2 stops29h 01m

Cusco Velazco Astete

Wed 1/28

12:52 pm-6:02 pm

3 stops29h 10m

$597

BostonCusco

BOS - CUZ

BOSCUZ

Boston Logan Intl

Thu 1/22

7:30 pm-7:26 am

3 stops35h 56m

Cusco Velazco Astete

Wed 1/28

6:30 pm-6:02 pm

3 stops23h 32m

$661

BostonCusco

BOS - CUZ

BOSCUZ

Boston Logan Intl

Mon 11/17

3:25 pm-4:41 pm

2 stops25h 16m

Cusco Velazco Astete

Wed 11/26

9:42 pm-8:49 pm

3 stops23h 07m

$768

BostonCusco

BOS - CUZ

BOSCUZ

Boston Logan Intl

Mon 11/3

3:25 pm-11:20 am

2 stops19h 55m

Cusco Velazco Astete

Sun 11/9

12:25 pm-1:50 pm

2 stops25h 25m

$770

BostonCusco

BOS - CUZ

BOSCUZ

Boston Logan Intl

Thu 1/22

5:40 am-12:45 am

2 stops19h 05m

Cusco Velazco Astete

Wed 1/28

8:10 pm-2:48 pm

2 stops18h 38m

$799

BostonCusco

BOS - CUZ

BOSCUZ

Boston Logan Intl

Thu 10/30

9:55 am-5:15 pm

2 stops32h 20m

Cusco Velazco Astete

Mon 11/3

10:45 pm-11:00 pm

2 stops24h 15m

$807

BostonCusco

BOS - CUZ

BOSCUZ

Boston Logan Intl

Sat 11/1

7:30 am-6:15 am

2 stops23h 45m

Cusco Velazco Astete

Fri 11/7

12:05 am-11:00 pm

2 stops22h 55m

$818

BostonCusco

BOS - CUZ

BOSCUZ

Boston Logan Intl

Sun 11/23

9:59 am-6:45 am

2 stops20h 46m

Cusco Velazco Astete

Fri 11/28

9:40 am-10:18 am

2 stops24h 38m

$827

BostonCusco

BOS - CUZ

BOSCUZ

Boston Logan Intl

Tue 11/4

7:55 am-11:20 am

1 stop27h 25m

Cusco Velazco Astete

Mon 11/10

5:10 pm-6:35 am

1 stop13h 25m

$926

BostonCusco

BOS - CUZ

BOSCUZ

Boston Logan Intl

Sun 11/2

3:25 pm-11:20 am

2 stops19h 55m

Cusco Velazco Astete

Mon 11/10

5:10 pm-6:35 am

1 stop13h 25m

$936

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Cusco from

How to get the cheapest flight ticket from Boston to Cusco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Cusco?

In general, January is the cheapest month to fly from Boston to Cusco. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $687. If you aren’t able to travel to Cusco during the month of January, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $705.

What is the cheapest day to depart on your flight to Cusco?

The cheapest day to depart from Boston to Cusco is on a Monday when prices can be found for as low as $686. The most expensive day to fly to Cusco is Friday, with ticket prices averaging around $773.

What is the cheapest time of day to depart on your flight to Cusco?

According to our data, the cheapest time of day to fly to Cusco is in the afternoon. momondo users have found flights departing from Boston to Cusco in the afternoon for as low as $701. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Cusco is in the morning when prices are around $779.

How far in advance should I book a flight to Cusco?

You are more likely to see cheaper flights to Cusco from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Cusco for around $837 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Cusco from Boston for as low as $659 on momondo.

How have Boston to Cusco flight prices changed over time?

As of October 2025, prices for Boston to Cusco flights are approximately 5% more expensive when compared to flights at the same time last year.

When to book flights from Boston to Cusco

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Cusco according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Cusco (BOS to CUZ) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Cusco

Direct flights

None
There are no direct flights from Boston to Cusco. There are no popular flight routes from Boston to Cusco.
Search flight deals

  • How far is Boston Logan Intl to Cusco Velazco Astete by plane?

    A flight from Boston Logan Intl to Cusco Velazco Astete will travel around 3859.6 mi. In terms of flight time, this usually takes a little over 14h 33m.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Cusco Velazco Astete Airport?

    Prices for flights from Boston Logan Intl Airport to Cusco Velazco Astete Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Cusco Velazco Astete Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to Cusco Velazco Astete Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Boston Logan Intl Airport to Cusco Velazco Astete Airport.

  • What documentation or ID do you need to fly to Cusco Velazco Astete Airport?

    The travel and health documents you'll need for your trip to Cusco Velazco Astete Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Cusco Velazco Astete Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Boston to Cusco?

Best airlines flying from Boston to Cusco

Compare and see reviews for airlines that fly from Boston to Cusco with momondo
Airline
Rating
Free Cancellation
Price
AviancaPriceFrom $419Free CancellationRating
6.6
2,451 reviews
Search Avianca flights
LATAM AirlinesPriceFrom $662Free CancellationRating
7.5
1,865 reviews
Search LATAM Airlines flights
American AirlinesPriceFrom $687Free CancellationRating
7.2
11,043 reviews
Search American Airlines flights
DeltaPriceFrom $741Free CancellationRating
7.9
7,972 reviews
Search Delta flights

Traveling to a place near Cusco?

Book flights to Cusco if you plan to visit one of these locations
Machu Picchu
Urubamba
Ollantaytambo

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Cusco?

It is quick and easy to find Boston to Cusco flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Cusco that suits you.

Can I find flights from Boston to Cusco with flexible booking policies on momondo?

momondo does allow users to show only those flights to Cusco from Boston which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Boston to Cusco?

momondo provides multiple filters to help you find the best flight to Cusco from Boston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Boston to Cusco right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Boston to Cusco flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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