$296 Cheap Flights from Boston (BOS) to Asuncion (ASU)

View $296 flight on Tue, May 6, 2025Opens in a new window

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

  • 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
Find available prices by choosing your travel dates.

Cheap Flights from Boston to Asuncion (BOS-ASU)

Prices were available within the past 7 days and start at $296 for one-way flights and $727 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

GOL Linhas Aereas S.A.
Wed, May 14 - Fri, May 23
BOS
Boston
ASU
Asuncion
$727 Roundtrip, found 5 days ago
$727
Roundtrip
found 5 days ago
Select GOL Linhas Aereas S.A. flight, departing Wed, May 14 from Boston to Asuncion, returning Fri, May 23, priced at $727 found 5 days ago
avianca
Wed, Sep 17 - Wed, Sep 24
BOS
Boston
ASU
Asuncion
$733 Roundtrip, found 3 days ago
$733
Roundtrip
found 3 days ago
Select avianca flight, departing Wed, Sep 17 from Boston to Asuncion, returning Wed, Sep 24, priced at $733 found 3 days ago
avianca
Wed, Sep 17 - Wed, Sep 24
BOS
Boston
ASU
Asuncion
$750 Roundtrip, found 3 days ago
$750
Roundtrip
found 3 days ago
Select avianca flight, departing Wed, Sep 17 from Boston to Asuncion, returning Wed, Sep 24, priced at $750 found 3 days ago
GOL Linhas Aereas S.A.
Tue, May 6 - Tue, May 13
BOS
Boston
ASU
Asuncion
$760 Roundtrip, found 3 days ago
$760
Roundtrip
found 3 days ago
Select GOL Linhas Aereas S.A. flight, departing Tue, May 6 from Boston to Asuncion, returning Tue, May 13, priced at $760 found 3 days ago
GOL Linhas Aereas S.A.
Wed, May 14 - Fri, May 23
BOS
Boston
ASU
Asuncion
$773 Roundtrip, found 5 days ago
$773
Roundtrip
found 5 days ago
Select GOL Linhas Aereas S.A. flight, departing Wed, May 14 from Boston to Asuncion, returning Fri, May 23, priced at $773 found 5 days ago
GOL Linhas Aereas S.A.
Wed, May 14 - Fri, May 23
BOS
Boston
ASU
Asuncion
$775 Roundtrip, found 5 days ago
$775
Roundtrip
found 5 days ago
Select GOL Linhas Aereas S.A. flight, departing Wed, May 14 from Boston to Asuncion, returning Fri, May 23, priced at $775 found 5 days ago
American Airlines
Sat, May 17 - Wed, May 28
BOS
Boston
ASU
Asuncion
$797 Roundtrip, found 3 days ago
$797
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sat, May 17 from Boston to Asuncion, returning Wed, May 28, priced at $797 found 3 days ago
GOL Linhas Aereas S.A.
Wed, May 7 - Tue, May 13
BOS
Boston
ASU
Asuncion
$806 Roundtrip, found 3 days ago
$806
Roundtrip
found 3 days ago
Select GOL Linhas Aereas S.A. flight, departing Wed, May 7 from Boston to Asuncion, returning Tue, May 13, priced at $806 found 3 days ago
Air Canada
Wed, May 14 - Wed, May 21
BOS
Boston
ASU
Asuncion
$812 Roundtrip, found 6 days ago
$812
Roundtrip
found 6 days ago
Select Air Canada flight, departing Wed, May 14 from Boston to Asuncion, returning Wed, May 21, priced at $812 found 6 days ago
Delta
Thu, Sep 4 - Wed, Sep 17
BOS
Boston
ASU
Asuncion
$876 Roundtrip, found 2 days ago
$876
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Sep 4 from Boston to Asuncion, returning Wed, Sep 17, priced at $876 found 2 days ago

Frequently asked questions

How much does a flight from Logan Intl. Airport (BOS) to Silvio Pettirossi Intl. Airport (ASU) cost?
Discover the latest flight deals from BOS to ASU 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 ASU?
The cheapest flights from BOS to ASU 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 ASU?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from BOS to ASU. 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 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.
*Available to One Key members.