$386 Cheap Flights from Boston (BOS) to Asuncion (ASU)

View $386 flight on Mon, Feb 16, 2026Opens in a new window

Popular airlines from Logan International Airport (BOS) to Asuncion (ASU-Silvio Pettirossi Intl.)

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Cheap Flights from Boston to Asuncion (BOS-ASU)

Prices were available within the past 7 days and start at $386 for one-way flights and $761 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Nov 12 - Wed, Nov 19
BOS
Boston
ASU
Asuncion
$761 Roundtrip, found 1 day ago
$761
Roundtrip
found 1 day ago
Select United flight, departing Wed, Nov 12 from Boston to Asuncion, returning Wed, Nov 19, priced at $761 found 1 day ago
United
Tue, Dec 2 - Thu, Dec 11
BOS
Boston
ASU
Asuncion
$763 Roundtrip, found 11 hours ago
$763
Roundtrip
found 11 hours ago
Select United flight, departing Tue, Dec 2 from Boston to Asuncion, returning Thu, Dec 11, priced at $763 found 11 hours ago
United
Mon, Mar 9 - Tue, Mar 24
BOS
Boston
ASU
Asuncion
$766 Roundtrip, found 3 days ago
$766
Roundtrip
found 3 days ago
Select United flight, departing Mon, Mar 9 from Boston to Asuncion, returning Tue, Mar 24, priced at $766 found 3 days ago
United
Mon, Feb 9 - Mon, Feb 23
BOS
Boston
ASU
Asuncion
$769 Roundtrip, found 23 hours ago
$769
Roundtrip
found 23 hours ago
Select United flight, departing Mon, Feb 9 from Boston to Asuncion, returning Mon, Feb 23, priced at $769 found 23 hours ago
United
Sun, Nov 9 - Sun, Nov 16
BOS
Boston
ASU
Asuncion
$773 Roundtrip, found 2 days ago
$773
Roundtrip
found 2 days ago
Select United flight, departing Sun, Nov 9 from Boston to Asuncion, returning Sun, Nov 16, priced at $773 found 2 days ago
United
Tue, Feb 10 - Tue, Feb 24
BOS
Boston
ASU
Asuncion
$774 Roundtrip, found 1 day ago
$774
Roundtrip
found 1 day ago
Select United flight, departing Tue, Feb 10 from Boston to Asuncion, returning Tue, Feb 24, priced at $774 found 1 day ago
Copa
Mon, Mar 16 - Tue, Mar 31
BOS
Boston
ASU
Asuncion
$873 Roundtrip, found 23 hours ago
$873
Roundtrip
found 23 hours ago
Select Copa flight, departing Mon, Mar 16 from Boston to Asuncion, returning Tue, Mar 31, priced at $873 found 23 hours ago
Air Canada
Tue, Nov 11 - Mon, Nov 17
BOS
Boston
ASU
Asuncion
$874 Roundtrip, found 4 days ago
$874
Roundtrip
found 4 days ago
Select Air Canada flight, departing Tue, Nov 11 from Boston to Asuncion, returning Mon, Nov 17, priced at $874 found 4 days ago
avianca
Sat, Apr 25 - Fri, May 1
BOS
Boston
ASU
Asuncion
$981 Roundtrip, found 6 days ago
$981
Roundtrip
found 6 days ago
Select avianca flight, departing Sat, Apr 25 from Boston to Asuncion, returning Fri, May 1, priced at $981 found 6 days ago
LATAM Airlines Group
Mon, Mar 9 - Tue, Mar 24
BOS
Boston
ASU
Asuncion
$1,025 Roundtrip, found 3 days ago
$1,025
Roundtrip
found 3 days ago
Select LATAM Airlines Group flight, departing Mon, Mar 9 from Boston to Asuncion, returning Tue, Mar 24, priced at $1,025 found 3 days ago

Alternative airports near Asunción

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Silvio Pettirossi Intl. ASU. Cheapest and Closest option available. Average driving time to city center is 21 minutes. Flights from $1,380
ASU
Silvio Pettirossi Intl.
CheapestClosest
Average driving time to city center21 min
Flights from $1,380

Frequently asked questions

How much does a flight from Logan Intl. Airport (BOS) to Silvio Pettirossi Intl. Airport (ASU) cost?
Snag a cheap one-way flight from $386 or cheap return flight from $761 from Logan Intl. Airport (BOS) to Silvio Pettirossi Intl. Airport (ASU) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Logan Intl. Airport (BOS) to Silvio Pettirossi Intl. Airport (ASU)?
November is the least expensive month to fly from BOS to ASU. Traveling during quieter months is often the key to finding a great deal.
What is the cheapest airline that flies from Logan Intl. Airport (BOS) to Silvio Pettirossi Intl. Airport (ASU)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest BOS to ASU flight.
How many flights per day from Logan Intl. Airport (BOS) to Silvio Pettirossi Intl. Airport (ASU)?
Direct flights from Logan Intl. Airport (BOS) to Silvio Pettirossi Intl. Airport (ASU) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BOS to ASU?
Typically you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* But this can vary depending on the time of year, airline and other factors.*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 Silvio Pettirossi Intl. Airport (ASU)?
To avoid potential delays on the Logan Intl. Airport (BOS) to Silvio Pettirossi Intl. Airport (ASU) route, aim to fly before 3 PM. Later flights are 22% more likely to be canceled.**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 Silvio Pettirossi Intl. Airport (ASU) last-minute?
Last-minute fares from BOS to ASU are usually more expensive. To secure the lowest prices, start looking for flights ahead of time. That said, if your travel plans are flexible, it's possible to score a cheap ticket right before your trip.
Is it cheaper to book a BOS to ASU flight and hotel package?
Compared with arranging hotels and flights separately, booking a BOS to ASU flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one convenient place takes the hassle out of planning your trip. Simply pick your flights and select from our extensive range of stays, then customize your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Logan Intl. Airport (BOS) to Silvio Pettirossi Intl. Airport (ASU)?
If you reserved your BOS to ASU flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for further details.

Travel information

Origin airport
Logan Intl.
Destination airport
Silvio Pettirossi Intl.
Airlines serving
Copa, GOL Linhas Aereas S.A., LATAM Airlines Group, United, avianca
Roundtrip price
$761
Distance
4749 mi

Book with confidence

Boston to Asuncion Flights

The cheapest times to fly from Boston to Asuncion

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

 

The best time to book a flight from Boston to Asuncion

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

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 Asuncion in 2025. You can also book with separate airlines for your outbound and return journeys, from $386 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 Asuncion 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 Asuncion 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.

 

Boston to Asuncion Flights

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*Available to One Key members.