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Cheap flights from New Hampshire to Porto Alegre from $318

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from New Hampshire to Porto Alegre departing on 9/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
Travel Warning: Due to flooding, the airport may be currently closed. Check local travel advisories before booking.

Find the cheapest flights from New Hampshire to Porto Alegre

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:18 pm - 6:15 am
BOS
-
POA
37h 57m
2 stops
Multiple Airlines Logo
9:55 pm - 7:35 am
POA
-
BOS
34h 40m
1 stop
$815Multiple Airlines
Tue, Jun 30 - Fri, Jul 31
Delta Logo
7:20 am - 6:15 am
BOS
-
POA
45h 55m
2 stops
Delta Logo
6:40 am - 11:33 pm
POA
-
BOS
17h 53m
2 stops
$821Delta
Tue, Jun 30 - Fri, Jul 31
LATAM Airlines Logo
9:55 am - 12:05 pm
BOS
-
POA
25h 10m
2 stops
LATAM Airlines Logo
6:40 am - 11:31 pm
POA
-
BOS
17h 51m
2 stops
$831LATAM Airlines
Thu, May 14 - Mon, Jun 1
LATAM Airlines Logo
1:35 pm - 2:00 pm
BOS
-
POA
23h 25m
2 stops
LATAM Airlines Logo
7:05 pm - 4:04 pm
POA
-
BOS
21h 59m
2 stops
$893LATAM Airlines
Thu, Jun 25 - Fri, Jun 26
LATAM Airlines Logo
9:55 am - 2:15 pm
BOS
-
POA
27h 20m
1 stop
LATAM Airlines Logo
7:25 am - 3:08 pm
POA
-
BOS
32h 43m
2 stops
$909LATAM Airlines
Thu, May 14 - Mon, Jun 1
LATAM Airlines Logo
9:55 am - 9:10 pm
BOS
-
POA
34h 15m
1 stop
LATAM Airlines Logo
7:25 am - 3:08 pm
POA
-
BOS
32h 43m
2 stops
$912LATAM Airlines
Thu, May 14 - Mon, Jun 1
LATAM Airlines Logo
8:55 pm - 6:15 pm
BOS
-
POA
44h 20m
2 stops
LATAM Airlines Logo
7:25 am - 3:08 pm
POA
-
BOS
32h 43m
2 stops
$927LATAM Airlines
Sun, May 17 - Mon, Jun 1
LATAM Airlines Logo
9:55 am - 12:05 pm
BOS
-
POA
25h 10m
2 stops
LATAM Airlines Logo
7:25 am - 11:31 pm
POA
-
BOS
41h 06m
2 stops
$929LATAM Airlines
Thu, May 14 - Mon, Jun 1
LATAM Airlines Logo
9:55 am - 12:40 am
BOS
-
POA
13h 45m
1 stop
LATAM Airlines Logo
9:55 pm - 11:31 pm
POA
-
BOS
26h 36m
2 stops
$935LATAM Airlines
Thu, May 14 - Sun, May 17
United Airlines Logo
2:37 pm - 4:20 pm
MHT
-
POA
24h 43m
2 stops
United Airlines Logo
3:45 pm - 2:02 pm
POA
-
MHT
23h 17m
2 stops
$1,815United Airlines
Sun, May 24 - Sat, May 30

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Copa Airlines flights from New Hampshire to Porto Alegre

Our best Copa Airlines deals on New Hampshire to Porto Alegre flight tickets
Copa Airlines
May 12
BOS4:00 pmBoston Logan Intl
31h 20m
1 stop
POA12:20 amPorto Alegre Salgado Filho
May 25
POA1:20 amPorto Alegre Salgado Filho
14h 24m
1 stop
BOS2:44 pmBoston Logan Intl
$788
Copa Airlines
May 11
BOS8:52 amBoston Logan Intl
14h 28m
1 stop
POA12:20 amPorto Alegre Salgado Filho
May 17
POA1:20 amPorto Alegre Salgado Filho
22h 48m
1 stop
BOS11:08 pmBoston Logan Intl
$860
Copa Airlines
May 6
BOS8:52 amBoston Logan Intl
14h 28m
1 stop
POA12:20 amPorto Alegre Salgado Filho
May 17
POA1:20 amPorto Alegre Salgado Filho
22h 48m
1 stop
BOS11:08 pmBoston Logan Intl
$872

LATAM Airlines flights from New Hampshire to Porto Alegre

Our best LATAM Airlines deals on New Hampshire to Porto Alegre flight tickets
LATAM Airlines
May 13
BOS9:55 amBoston Logan Intl
13h 45m
1 stop
POA12:40 amPorto Alegre Salgado Filho
Jun 3
POA6:40 amPorto Alegre Salgado Filho
17h 51m
2 stops
BOS11:31 pmBoston Logan Intl
$727
LATAM Airlines
May 11
BOS5:05 pmBoston Logan Intl
20h 10m
2 stops
POA2:15 pmPorto Alegre Salgado Filho
May 21
POA7:25 amPorto Alegre Salgado Filho
18h 58m
2 stops
BOS1:23 amBoston Logan Intl
$729
LATAM Airlines
May 11
BOS5:05 pmBoston Logan Intl
20h 10m
2 stops
POA2:15 pmPorto Alegre Salgado Filho
May 19
POA4:10 amPorto Alegre Salgado Filho
20h 21m
2 stops
BOS11:31 pmBoston Logan Intl
$732

momondo Fare Finder

 
Customize your flight search to find flights from New Hampshire to Porto Alegre 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 May 5, 2026.
Use the filters below to find and compare flights from New Hampshire to Porto Alegre that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Tue 6/30

3:18 pm-6:15 am

2 stops37h 57m

Porto Alegre Salgado Filho

Fri 7/31

9:55 pm-7:35 am

1 stop34h 40m

$815

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Tue 6/30

7:20 am-6:15 am

2 stops45h 55m

Porto Alegre Salgado Filho

Fri 7/31

6:40 am-11:33 pm

2 stops17h 53m

$821

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Thu 5/14

9:55 am-12:05 pm

2 stops25h 10m

Porto Alegre Salgado Filho

Mon 6/1

6:40 am-11:31 pm

2 stops17h 51m

$831

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Thu 6/25

1:35 pm-2:00 pm

2 stops23h 25m

Porto Alegre Salgado Filho

Fri 6/26

7:05 pm-4:04 pm

2 stops21h 59m

$893

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Thu 5/14

9:55 am-2:15 pm

1 stop27h 20m

Porto Alegre Salgado Filho

Mon 6/1

7:25 am-3:08 pm

2 stops32h 43m

$909

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Thu 5/14

9:55 am-9:10 pm

1 stop34h 15m

Porto Alegre Salgado Filho

Mon 6/1

7:25 am-3:08 pm

2 stops32h 43m

$912

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Sun 5/17

8:55 pm-6:15 pm

2 stops44h 20m

Porto Alegre Salgado Filho

Mon 6/1

7:25 am-3:08 pm

2 stops32h 43m

$927

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Thu 5/14

9:55 am-12:05 pm

2 stops25h 10m

Porto Alegre Salgado Filho

Mon 6/1

7:25 am-11:31 pm

2 stops41h 06m

$929
Quickest round-trip

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Thu 5/14

9:55 am-12:40 am

1 stop13h 45m

Porto Alegre Salgado Filho

Sun 5/17

9:55 pm-11:31 pm

2 stops26h 36m

$935

ManchesterPorto Alegre

MHT - POA

MHTPOA

Manchester

Sun 5/24

2:37 pm-4:20 pm

2 stops24h 43m

Porto Alegre Salgado Filho

Sat 5/30

3:45 pm-2:02 pm

2 stops23h 17m

$1,815

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Porto Alegre from

How to get the cheapest flight ticket from New Hampshire to Porto Alegre

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 New Hampshire to Porto Alegre Salgado Filho?

LATAM Airlines is the most popular carrier operating from New Hampshire to Porto Alegre Salgado Filho

Cheap New Hampshire to Porto Alegre flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from New Hampshire to Porto Alegre

Fastest flight time

13h 45m

Direct flights

None
The fastest flight from New Hampshire to Porto Alegre takes 13h 45m
There are no direct flights from New Hampshire to Porto Alegre. There are no popular flight routes from New Hampshire to Porto Alegre.
Search flight deals

Frequently asked questions about flying from New Hampshire to Porto Alegre

  • When did momondo last update prices for flights from New Hampshire to Porto Alegre Salgado Filho Airport?

    Prices for flights from New Hampshire to Porto Alegre Salgado Filho Airport were last updated today.

  • How many operators does momondo search for flights from New Hampshire to Porto Alegre Salgado Filho Airport?

  • How old do you have to be to fly from New Hampshire to Porto Alegre Salgado Filho Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from New Hampshire to Porto Alegre Salgado Filho Airport.

  • What documentation or ID do you need to fly to Porto Alegre Salgado Filho Airport?

    The travel and health documents required for your trip to Porto Alegre Salgado Filho Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Porto Alegre Salgado Filho Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from New Hampshire to Porto Alegre?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from New Hampshire to Porto Alegre. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from New Hampshire to Porto Alegre with flexible booking policies on momondo?

All flight searches from New Hampshire to Porto Alegre on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from New Hampshire to Porto Alegre?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from New Hampshire to Porto Alegre.

I’m not ready to book a flight from New Hampshire to Porto Alegre right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Porto Alegre, momondo offers a useful price alert feature which will track prices for flights to Porto Alegre from New Hampshire and alert you when they change.

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