Cheapest airlines flights from Boston to Sao Paulo

You can choose from 1 airlines that fly from Boston to Sao Paulo, including Copa Airlines, LATAM Airlines has lowest fares on this route.
Copa Airlines logo Copa Airlines
Airlines are determined based on actual purchased flight tickets from Boston to Sao Paulo according to previous 12 months data from Trip.com.

Search for direct flights from Boston to Sao Paulo in the next 3 months. Based on Trip.com's latest 7-day flight data, one-way direct flights start at US$301, and round-trip direct flights start at US$843.

Displayed flight fares from Boston to Sao Paulo are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Boston to Sao Paulo Flight Details

The distance between Boston and Sao Paulo is about 7,743.39 km. The average flying time from Boston to Sao Paulo is around 9 hours 57 minutes. Based on Trip.com's latest data, travel demand is highest in July. The off-season for travel is November.

Cheapest one-way flight priceUS$249
Cheapest return ticket priceUS$500
Cheapest monthNovember
Peak season for travelJuly
Flight distance7,743.39 km
Average flight time9 hours 57 minutes
Popular airlineCopa Airlines
Flight statistics for the Boston–Sao Paulo route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com Price Insights on Flights from Boston to Sao Paulo

Which month has the cheapest one-way flights from Boston to Sao Paulo?

The average price of one-way flights from Boston to Sao Paulo purchased by Trip.com users by month over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from Boston to Sao Paulo is November, with an average price of US$256; while the month with the highest flight price is usually July, with an average price of up to US$1,159.

US$1,159
US$708
US$256
0
    Cheapest
  • US$393
    Apr
  • US$267
    May
  • US$638
    Jun
  • US$1,159
    Jul
  • US$599
    Aug
  • US$306
    Sep
  • US$318
    Oct
  • US$256
    Nov
  • US$552
    Dec
  • US$376
    Jan
  • US$334
    Feb
  • US$350
    Mar

What is the cheapest day of the week to fly from Boston to Sao Paulo?

Average weekly flight prices from Boston to Sao Paulo by travel date (Based on Trip.com’s past 12 months of data)

Based on Trip.com’s past 12 months of flight data, the cheapest day to fly from Boston to Sao Paulo is Tuesday, with average prices lower than on other days. Avoid Friday, as prices are usually highest then.

US$736
US$521
US$306
US$91
  • US$565
    Mon
  • US$306
    Tue
  • US$395
    Wed
  • US$417
    Thu
  • US$736
    Fri
  • US$481
    Sat
  • US$508
    Sun

When is the cheapest day to fly from Boston to Sao Paulo during International Workers' Day?

Based on Trip.com's data over the past 3 days, these are the lowest one-way flight prices from Boston to Sao Paulo during International Workers' Day.

International Workers' Day is scheduled for May 1. The cheapest flights from Boston to Sao Paulo are available on Apr 28, with fares starting at US$324.

US$699
US$512
US$324
US$137
  • US$378
    27
    Apr
  • US$324
    28
  • US$393
    29
  • US$382
    30
  • US$699
    1
    May
  • US$393
    2
  • US$330
    3

Frequently Asked Questions

  • What are the cheapest flights from Boston to Sao Paulo (BOS-SAO)?

    Based on Trip.com data, avianca offers one-way fares as low as US$249 on Cheapest nonstop routes (e.g. BOS to GRU on Sun, May 10), while Copa Airlines offers Cheapest nonstop round-trips from US$500 departing on Mon, May 4 and returning on Mon, May 11.
  • At the moment, several airlines serve connecting flights from Boston to Sao Paulo, including: Copa Airlines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.
  • It takes about 9 hours 57 minutes to fly from Boston to Sao Paulo.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Boston to Sao Paulo is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Boston to Sao Paulo, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sun, May 10, with one-way flights priced at just US$249.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is LATAM Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Sao Paulo travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Boston to Sao Paulo is November, when demand for travel is lower.
  • After crunching the numbers on our April flight calendar, it's currently cheapest to fly from Boston to Sao Paulo on April 22, 2026 with Copa Airlines, with prices starting at US$254.
  • You can land at any one of the following hubs in Sao Paulo, with Boston Logan International Airport to São Paulo/Guarulhos–Governor André Franco Montoro International Airport (BOS-GRU) is by far the most common option on this route: São Paulo–Congonhas Airport (CGH) São Paulo/Guarulhos–Governor André Franco Montoro International Airport (GRU) Viracopos International Airport (VCP).
  • The time difference between Sao Paulo and Boston is 2h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Trip.com Airline Insights on Flights from Boston to Sao Paulo

Which airline offers the cheapest direct flights from Boston to Sao Paulo?

Data is based on the average price of all nonstop flights from Boston to Sao Paulo on Trip.com over the past 12 months.

Based on Trip.com’s data from the past 12 months, Gol Linhas Aereas Inteligentes provides the lowest-priced direct flights from Boston to Sao Paulo, with fares starting at US$239.

US$73
US$239
US$406
US$573
US$739
Gol Linhas Aereas Inteligentes
US$239
Gol Linhas Aereas Inteligentes
avianca
US$346
avianca
Copa Airlines
US$377
Copa Airlines
American Airlines
US$466
American Airlines
Delta Air Lines
US$557
Delta Air Lines
LATAM Airlines
US$739
LATAM Airlines

Note: Prices shown on this page are the estimated lowest prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.