Cheap flights from Boston to Rio de Janeiro from $784 BOS → GIG, SDU
Logan International Airport (BOS) → Galeao Antonio Carlos Jobim International Airport (GIG), Santos Dumont Airport (SDU)
The cheapest return found recently is $784 with Air Canada, 30 Nov – 7 Dec, found 2 days ago.
- Cheapest return found recently
- $784, 30 Nov to 7 Dec
- Usual return price
- $773 to $872
- Cheapest month to fly
- November 2026, return fares from $770 found in the last 7 days
Return
The cheapest return fare on each of 3 departure dates is usually $773 to $872.
Cheapest return found recently
$784
30 Nov – 7 Dec · Air Canada
Logan International Airport (BOS) → Santos Dumont Airport (SDU)
Leaves 8:00 p.m. · Return leaves 12:37 a.m. · 52 h 2 min of travel, both ways together
out 2 stops, back 1 stop · via Fort Lauderdale-Hollywood International Airport (FLL), Viracopos Airport (VCP), Pearson International Airport (YYZ) · overnight connection · connection may need a visa · 15 h connection
found 2 days ago
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$784 30 Nov – 7 Decfound 2 days agoSee prices for these dates
$770 30 Nov – 6 Decfound 8 days agoSee prices for these dates
What have prices looked like?
Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $449 to $850.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 3 departure dates from 30 Nov to 13 Feb 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 7-night return fares leaving within 3 days of 30 Nov to compare.
Every date we hold
42 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 30 Nov – 6 Dec | $770 | American Airlines | Logan International Airport (BOS) → Galeao Antonio Carlos Jobim International Airport (GIG) | out 1 stop, back 2 stops | found 8 days ago | See prices for these dates |
| 4 Dec – 9 Dec | $776 | American Airlines | Logan International Airport (BOS) → Galeao Antonio Carlos Jobim International Airport (GIG) | out 1 stop, back 1 stop | found 7 days ago | See prices for these dates |
| 13 Feb 2027 – 21 Feb 2027 | $968 | United Airlines | Logan International Airport (BOS) → Galeao Antonio Carlos Jobim International Airport (GIG) | out 2 stops, back 2 stops | found 6 days ago | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $770.
Airlines on the cheapest dates: American Airlines, United Airlines.
Premium cabin fares from Boston to Rio de Janeiro
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 30 Nov – 7 Dec in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Boston to Rio de Janeiro?
Return
Fares 30 to 59 days before departure were typically 23% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $760 | $723 | +30% | 7 |
| 7–13 days | $742 | $561 | +26% | 8 |
| 14–29 days | $660 | $449 | +12% | 36 |
| 30–59 days | $587 | $535 | Cheapest seen | 19 |
| 60–89 days | $978 | $904 | +67% | 17 |
| 90–179 days | $678 | $605 | +16% | 19 |
| 180+ days | $668 | $668 | +14% | 9 |
Live price for these dates
The cheapest return found recently is for 30 Nov – 7 Dec. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Boston to Rio de Janeiro?
The cheapest return found recently is $784 with Air Canada, 30 Nov to 7 Dec, found 2 days ago. The cheapest return we hold, of any age, is $770 with American Airlines, 30 Nov to 6 Dec, found 8 days ago. The cheapest return fare on each of 3 departure dates is usually $773 to $872.
What is the cheapest month to fly from Boston to Rio de Janeiro?
November 2026 is the cheapest month for a return, from $770, 30 Nov to 6 Dec, found 8 days ago.
How far ahead should I book a flight from Boston to Rio de Janeiro?
In 49 days of prices between 24 Sept and 11 Nov, return fares 30 to 59 days before departure were typically 23% lower than 0 to 6 days before departure.
Which airlines have the cheapest flights from Boston to Rio de Janeiro?
Between 30 Nov and 13 Feb 2027, American Airlines has the cheapest return on 2 of the 3 departure dates we hold, and United Airlines on 1.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work