BOS - ASU

$846 Find Cheap Flights from Boston to Asuncion

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Asuncion departing on 10/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Asuncion

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Asuncion, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Asuncion, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$846
Typical prices: $1,142-$894
LATAM Airlines
Sun 10/18Tue 10/20
BOS - ASU • 1 stop
Top airlines
LATAM Airlines
Cheapest • from $846 (round-trip)
Copa Airlines
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Boston and Asuncion. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Sao Paulo (GRU)
Cheapest • Avg $781 (round-trip)
Panama City (PTY)
Shortest trip • 13h 53m (one-way)
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 22% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Asuncion!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boston to Asuncion (BOS-ASU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Asuncion that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Asuncion

Sun, Oct 18 - Tue, Oct 20
LATAM Airlines Logo
9:55 am - 10:35 am
BOS
-
ASU
23h 40m
1 stop
LATAM Airlines Logo
11:10 am - 7:35 am
ASU
-
BOS
21h 25m
1 stop
$846LATAM Airlines
Thu, May 28 - Tue, Jun 2
Copa Airlines Logo
8:52 am - 12:08 am
BOS
-
ASU
14h 16m
1 stop
Copa Airlines Logo
3:58 am - 11:08 pm
ASU
-
BOS
20h 10m
1 stop
$849Copa Airlines
Sun, Oct 18 - Tue, Oct 20
LATAM Airlines Logo
9:55 am - 10:35 am
BOS
-
ASU
23h 40m
1 stop
LATAM Airlines Logo
8:10 am - 10:03 am
ASU
-
BOS
26h 53m
2 stops
$857LATAM Airlines
Wed, Sep 9 - Sat, Sep 19
LATAM Airlines Logo
9:55 am - 11:55 pm
BOS
-
ASU
13h 00m
1 stop
LATAM Airlines Logo
11:10 am - 7:35 am
ASU
-
BOS
21h 25m
1 stop
$859LATAM Airlines
Fri, Jun 12 - Fri, Jun 19
LATAM Airlines Logo
9:05 am - 6:05 am
BOS
-
ASU
20h 00m
2 stops
LATAM Airlines Logo
8:10 am - 1:31 am
ASU
-
BOS
18h 21m
2 stops
$861LATAM Airlines
Wed, Sep 2 - Fri, Sep 25
Copa Airlines Logo
3:55 pm - 5:31 am
BOS
-
ASU
12h 36m
1 stop
Copa Airlines Logo
6:33 am - 11:02 pm
ASU
-
BOS
17h 29m
1 stop
$872Copa Airlines
Sun, Oct 18 - Tue, Oct 20
LATAM Airlines Logo
9:55 am - 5:40 pm
BOS
-
ASU
30h 45m
2 stops
LATAM Airlines Logo
11:10 am - 7:35 am
ASU
-
BOS
21h 25m
1 stop
$876LATAM Airlines
Sun, Oct 18 - Mon, Oct 19
LATAM Airlines Logo
3:00 pm - 5:40 pm
BOS
-
ASU
25h 40m
2 stops
LATAM Airlines Logo
2:55 am - 11:23 pm
ASU
-
BOS
21h 28m
2 stops
$889LATAM Airlines
Thu, May 28 - Wed, Jun 3
LATAM Airlines Logo
9:55 am - 10:35 am
BOS
-
ASU
23h 40m
1 stop
LATAM Airlines Logo
8:10 am - 7:09 pm
ASU
-
BOS
35h 59m
2 stops
$950LATAM Airlines
Wed, Sep 9 - Sat, Sep 19
LATAM Airlines Logo
3:55 pm - 6:05 am
BOS
-
ASU
37h 10m
2 stops
LATAM Airlines Logo
8:10 am - 1:06 am
ASU
-
BOS
17h 56m
2 stops
$961LATAM Airlines
Booking Insights

KAYAK's insights & trends for Boston to Asuncion flights

Get data-powered insights and trends into flights from Boston to Asuncion to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Boston to Asuncion?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Boston to Asuncion departing in October.

What is the cheapest month to fly from Boston to Asuncion?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Asuncion, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to Asuncion is January, where tickets cost $847 (return) on average. On the other hand, the most expensive months are December and August, where the average cost of round-trip tickets is $1,706 and $1,245 respectively.

Find deals

Good to know

Low seasonDecember
Cheapest flight$846
Best time to beat the crowds but there is an average 57% increase in price.
Most popular time to fly and prices are also 18% lower on average.
Flight from Boston to Asuncion

When to book flights from Boston to Asuncion

Are your dates flexible? Find out the best times to travel from Boston to Asuncion based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to Asuncion

  • What is the cheapest flight from Boston to Asuncion?

    In the last 3 days, the lowest price for a flight from Boston to Asuncion was $846 for a round-trip ticket.

  • Do I need a passport to fly between Boston and Asuncion?

    Yes, you’ll need a passport to travel to Asuncion from Boston.

  • Which airports will I be using when flying from Boston to Asuncion?

    Boston and Asuncion are both served by 1 main airport. You will leave Boston from Boston Logan Intl and will be arriving at Asuncion Silvio Pettirossi.

  • Which aircraft models fly most regularly from Boston to Asuncion?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boston to Asuncion?

    Star Alliance is the only airline alliance operating flights between Boston and Asuncion.

  • How does KAYAK find such low prices on flights from Boston to Asuncion?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Asuncion.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Asuncion?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Asuncion from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Asuncion?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Asuncion with an airline and back to Boston with another airline. Booking your flights between Boston and ASU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Asuncion?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Asuncion from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Boston to Asuncion

 
See real verified KAYAK customer reviews for airlines flying from Boston to Asuncion. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Asuncion? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.5
Copa AirlinesOverall score based on 1580 reviews
7.8Boarding
8.1Crew
6.8Entertainment
7.4Comfort
6.8Food
Airline reviews

I was flying business class, and the French fellow passengers were super noisy. It was not a comfortable flight. And the crew was not helpful.

2.0 MediocreFiruz, Apr 2026
MEX - PTY
Read more Copa Airlines reviews

I was flying business class, and the French fellow passengers were super noisy. It was not a comfortable flight. And the crew was not helpful.

Entire experience from check in to landing was amazing the flight crew was excellent and friendly. Seats were comfortable.

Avoid at all costs. My wife had to stay back on a connecting flight as her parents flight was delayed. 10 days later on the way back they cancelled all our flights. We had to rebook all four of us on the next days flight.

Do not book it’s a scam! They stole $1200 from me

A lot things happened in this trip.The fly should be less stress.

There should be a warning regarding the quality of the aircraft on the website as we reserve the tickets. There was no TV or any type of screen onboard. The wifi they offer is good for nothing. Traveling 9 hours straight with kids and no type of entetainment was horrible. I wish I had been informed prior so I could buy a ticket with another airline. The food was a joke too. A very tiny portion per passenger. They also charged $100 per checked bag. With United I used to pay $60. So, fair to say that I wont be flying Copa anymore. Their aircraft was super old, outdated, no entertainment, with nearly no onboard food.

Very strict carry on rules meant most of the plane had to gate check their luggage. As is often the case had things that were broken because of this, but I appreciated not being charged to gate check. Otherwise good flight and great crew once on the plane

I liked the meatloaf the chicken was awful but the plane was on time and got there and the staff was nice.

Boarding was quick & efficient; they gave boarding groups due priority; staff & air crew were very cordial and helpful, pleasant flight.

As always, Copa Airlines is great to fly on. The flights are always on time, the staff are pleasant and helpful and it's always a wonderful flying experience.

Everything you need to know for your flight from Boston to Asuncion

Information on your arrival and departure airports

Boston (BOS)
Asuncion (ASU)