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Cheap flights from Boston to Rio de Janeiro from $331

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Rio de Janeiro departing on 4/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Boston to Rio de Janeiro

Cheap round-trip flights

Enter your travel dates to find the best prices.
Azul Logo
5:29 pm - 1:00 pm
BOS
-
SDU
18h 31m
2 stops
Azul Logo
5:25 pm - 5:57 pm
SDU
-
BOS
25h 32m
2 stops
$668Azul
อ., ส.ค. 18 - อ., ส.ค. 25
Azul Logo
4:25 pm - 12:50 pm
BOS
-
SDU
19h 25m
2 stops
Azul Logo
7:35 pm - 5:05 pm
SDU
-
BOS
22h 30m
2 stops
$676Azul
พ., พ.ค. 13 - พ., พ.ค. 20
Azul Logo
3:50 pm - 1:00 pm
BOS
-
SDU
20h 10m
2 stops
Azul Logo
6:50 pm - 6:01 pm
SDU
-
BOS
24h 11m
2 stops
$687Azul
อ., ส.ค. 18 - อ., ส.ค. 25
Azul Logo
2:15 pm - 2:30 pm
BOS
-
SDU
23h 15m
2 stops
Azul Logo
6:50 pm - 5:44 pm
SDU
-
BOS
23h 54m
2 stops
$753Azul
จ., ก.ย. 28 - พ., ต.ค. 28
Multiple Airlines Logo
9:55 am - 8:50 am
BOS
-
SDU
21h 55m
1 stop
Multiple Airlines Logo
8:15 pm - 2:28 pm
SDU
-
BOS
19h 13m
2 stops
$767Multiple Airlines
พฤ., เม.ย. 30 - อ., พ.ค. 5
LATAM Airlines Logo
9:55 am - 8:35 am
BOS
-
SDU
21h 40m
1 stop
LATAM Airlines Logo
8:15 pm - 7:35 am
SDU
-
BOS
12h 20m
1 stop
$773LATAM Airlines
ศ., มิ.ย. 26 - พฤ., ก.ค. 2
Azul Logo
5:29 pm - 1:00 pm
BOS
-
SDU
18h 31m
2 stops
Azul Logo
6:50 pm - 5:57 pm
SDU
-
BOS
24h 07m
2 stops
$778Azul
ส., ส.ค. 22 - ส., ส.ค. 29
Azul Logo
5:29 pm - 1:00 pm
BOS
-
SDU
18h 31m
2 stops
Azul Logo
5:30 pm - 5:52 pm
SDU
-
BOS
25h 22m
2 stops
$779Azul
อ., มิ.ย. 16 - จ., มิ.ย. 29
Azul Logo
2:15 pm - 2:30 pm
BOS
-
SDU
23h 15m
2 stops
Azul Logo
6:50 pm - 2:55 pm
SDU
-
BOS
21h 05m
2 stops
$781Azul
จ., ก.ย. 14 - พ., ก.ย. 30
LATAM Airlines Logo
9:55 am - 8:35 am
BOS
-
SDU
21h 40m
1 stop
LATAM Airlines Logo
9:20 pm - 7:35 am
SDU
-
BOS
35h 15m
2 stops
$788LATAM Airlines
พ., ก.ย. 23 - จ., ก.ย. 28

LATAM Airlines flights from Boston to Rio de Janeiro Santos Dumont Airport

Our best LATAM Airlines deals on Boston to Rio de Janeiro Santos Dumont Airport flight tickets
LATAM Airlines
Jun 26
BOS9:55 amBoston Logan Intl
21h 40m
1 stop
SDU8:35 amRio de Janeiro Santos Dumont
Jul 2
SDU8:15 pmRio de Janeiro Santos Dumont
12h 20m
1 stop
BOS7:35 amBoston Logan Intl
$773
LATAM Airlines
Sep 23
BOS9:55 amBoston Logan Intl
21h 40m
1 stop
SDU8:35 amRio de Janeiro Santos Dumont
Sep 28
SDU9:20 pmRio de Janeiro Santos Dumont
35h 15m
2 stops
BOS7:35 amBoston Logan Intl
$788
LATAM Airlines
Apr 30
BOS9:55 amBoston Logan Intl
21h 55m
1 stop
SDU8:50 amRio de Janeiro Santos Dumont
May 7
SDU5:35 pmRio de Janeiro Santos Dumont
39h 00m
2 stops
BOS7:35 amBoston Logan Intl
$801

Azul flights from Boston to Rio de Janeiro Santos Dumont Airport

Our best Azul deals on Boston to Rio de Janeiro Santos Dumont Airport flight tickets
Azul
Aug 18
BOS5:29 pmBoston Logan Intl
18h 31m
2 stops
SDU1:00 pmRio de Janeiro Santos Dumont
Aug 25
SDU5:25 pmRio de Janeiro Santos Dumont
25h 32m
2 stops
BOS5:57 pmBoston Logan Intl
$668
Azul
May 13
BOS4:25 pmBoston Logan Intl
19h 25m
2 stops
SDU12:50 pmRio de Janeiro Santos Dumont
May 20
SDU7:35 pmRio de Janeiro Santos Dumont
22h 30m
2 stops
BOS5:05 pmBoston Logan Intl
$676
Azul
Sep 1
BOS10:22 amBoston Logan Intl
23h 23m
2 stops
SDU10:45 amRio de Janeiro Santos Dumont
Sep 14
SDU5:05 pmRio de Janeiro Santos Dumont
22h 50m
2 stops
BOS2:55 pmBoston Logan Intl
$679

momondo Fare Finder

 
Customize your flight search to find flights from Boston to Rio de Janeiro Santos Dumont Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated เมษายน 16, 2026.
Use the filters below to find and compare flights from Boston to Rio de Janeiro Santos Dumont Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

อ. 8/18

5:29 pm-1:00 pm

2 stops18h 31m

Rio de Janeiro Santos Dumont

อ. 8/25

5:25 pm-5:57 pm

2 stops25h 32m

$668

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

พ. 5/13

4:25 pm-12:50 pm

2 stops19h 25m

Rio de Janeiro Santos Dumont

พ. 5/20

7:35 pm-5:05 pm

2 stops22h 30m

$676

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

อ. 8/18

3:50 pm-1:00 pm

2 stops20h 10m

Rio de Janeiro Santos Dumont

อ. 8/25

6:50 pm-6:01 pm

2 stops24h 11m

$687

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

จ. 9/28

2:15 pm-2:30 pm

2 stops23h 15m

Rio de Janeiro Santos Dumont

พ. 10/28

6:50 pm-5:44 pm

2 stops23h 54m

$753

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

พฤ. 4/30

9:55 am-8:50 am

1 stop21h 55m

Rio de Janeiro Santos Dumont

อ. 5/5

8:15 pm-2:28 pm

2 stops19h 13m

$767
Quickest round-trip

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

ศ. 6/26

9:55 am-8:35 am

1 stop21h 40m

Rio de Janeiro Santos Dumont

พฤ. 7/2

8:15 pm-7:35 am

1 stop12h 20m

$773

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

ส. 8/22

5:29 pm-1:00 pm

2 stops18h 31m

Rio de Janeiro Santos Dumont

ส. 8/29

6:50 pm-5:57 pm

2 stops24h 07m

$778

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

อ. 6/16

5:29 pm-1:00 pm

2 stops18h 31m

Rio de Janeiro Santos Dumont

จ. 6/29

5:30 pm-5:52 pm

2 stops25h 22m

$779

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

จ. 9/14

2:15 pm-2:30 pm

2 stops23h 15m

Rio de Janeiro Santos Dumont

พ. 9/30

6:50 pm-2:55 pm

2 stops21h 05m

$781

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

พ. 9/23

9:55 am-8:35 am

1 stop21h 40m

Rio de Janeiro Santos Dumont

จ. 9/28

9:20 pm-7:35 am

2 stops35h 15m

$788

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Boston to Rio de Janeiro Santos Dumont Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Boston Logan Intl to Rio de Janeiro Santos Dumont?

LATAM Airlines, GOL, and Delta are the most popular carriers operating from Boston Logan Intl to Rio de Janeiro Santos Dumont

When to book flights from Boston to Rio de Janeiro Santos Dumont Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Rio de Janeiro Santos Dumont Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Rio de Janeiro Santos Dumont Airport (BOS to SDU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Rio de Janeiro Santos Dumont Airport

Fastest flight time

16h 15m

Direct flights

None
The fastest flight from Boston to Rio de Janeiro Santos Dumont Airport takes 16h 15m
There are no direct flights from Boston to Rio de Janeiro Santos Dumont Airport. There are no popular flight routes from Boston to Rio de Janeiro Santos Dumont Airport.
Search flight deals

Frequently asked questions about flying from Boston to Rio de Janeiro Santos Dumont Airport

  • How far is Boston Logan Intl to Rio de Janeiro Santos Dumont by plane?

    Boston Logan Intl and Rio de Janeiro Santos Dumont are 4844.9 mi apart from one another. Typically, this will take 16h 15m by plane in normal conditions.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Rio de Janeiro Santos Dumont Airport?

    Prices for flights from Boston Logan Intl Airport to Rio de Janeiro Santos Dumont Airport are updated daily.

  • How old do you have to be to fly from Boston Logan Intl Airport to Rio de Janeiro Santos Dumont Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Rio de Janeiro Santos Dumont Airport.

  • What documentation or ID do you need to fly to Rio de Janeiro Santos Dumont Airport?

    The travel and health documents you'll need for your trip to Rio de Janeiro Santos Dumont Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Rio de Janeiro Santos Dumont Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Rio de Janeiro?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Rio de Janeiro from Boston.

Can I find flights from Boston to Rio de Janeiro with flexible booking policies on momondo?

Flights from Boston to Rio de Janeiro with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Boston to Rio de Janeiro?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Rio de Janeiro from Boston.

I’m not ready to book a flight from Boston to Rio de Janeiro right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Boston to Rio de Janeiro now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Rio de Janeiro and let you know when they change.

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