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Cheap flights from New Hampshire to Porto Alegre from $333

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 8/11. 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
1 adult, Economy, 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.
LATAM Airlines Logo
7:50 pm - 12:40 am
BOS
-
POA
26h 50m
2 stops
LATAM Airlines Logo
2:25 pm - 6:35 am
POA
-
BOS
17h 10m
1 stop
$721LATAM Airlines
Tue, Nov 24 - Sat, Mar 20
LATAM Airlines Logo
7:50 pm - 12:40 am
BOS
-
POA
26h 50m
2 stops
LATAM Airlines Logo
2:25 pm - 6:35 am
POA
-
BOS
17h 10m
1 stop
$761LATAM Airlines
Tue, Nov 24 - Sat, Mar 20
Avianca Logo
7:55 am - 10:40 am
BOS
-
POA
24h 45m
2 stops
Avianca Logo
2:00 pm - 6:35 am
POA
-
BOS
18h 35m
2 stops
$787Avianca
Tue, Nov 17 - Wed, Nov 18
United Airlines Logo
5:45 am - 4:10 pm
BOS
-
POA
33h 25m
2 stops
United Airlines Logo
3:45 pm - 1:14 am
POA
-
BOS
34h 29m
2 stops
$813United Airlines
Fri, Jul 10 - Wed, Jul 15
LATAM Airlines Logo
8:55 am - 9:15 am
BOS
-
POA
22h 20m
1 stop
LATAM Airlines Logo
2:20 pm - 1:47 pm
POA
-
BOS
25h 27m
2 stops
$825LATAM Airlines
Tue, Nov 17 - Wed, Nov 18
LATAM Airlines Logo
8:55 am - 12:40 am
BOS
-
POA
13h 45m
1 stop
LATAM Airlines Logo
6:40 am - 11:23 pm
POA
-
BOS
18h 43m
2 stops
$837LATAM Airlines
Tue, Nov 17 - Wed, Nov 18
Delta Logo
3:00 pm - 11:15 am
BOS
-
POA
19h 15m
2 stops
Delta Logo
7:05 pm - 6:40 pm
POA
-
BOS
24h 35m
2 stops
$839Delta
Thu, Jul 2 - Mon, Jul 27
Delta Logo
1:35 pm - 11:15 am
BOS
-
POA
20h 40m
2 stops
Delta Logo
6:40 am - 11:33 pm
POA
-
BOS
17h 53m
2 stops
$841Delta
Thu, Jul 2 - Mon, Jul 27
LATAM Airlines Logo
10:00 am - 8:10 am
BOS
-
POA
21h 10m
1 stop
LATAM Airlines Logo
6:40 am - 11:33 pm
POA
-
BOS
17h 53m
2 stops
$842LATAM Airlines
Mon, Jun 29 - Mon, Jul 27
United Airlines Logo
6:45 pm - 6:20 pm
MHT
-
POA
21h 35m
2 stops
United Airlines Logo
4:05 pm - 3:03 pm
POA
-
MHT
24h 58m
2 stops
$1,581United Airlines
Wed, Dec 2 - Sun, Dec 6

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LATAM Airlines flights from New Hampshire to Porto Alegre

Our best LATAM Airlines deals on New Hampshire to Porto Alegre flight tickets
LATAM Airlines
Nov 24
BOS7:50 pmBoston Logan Intl
26h 50m
2 stops
POA12:40 amPorto Alegre Salgado Filho
Mar 20
POA2:25 pmPorto Alegre Salgado Filho
17h 10m
1 stop
BOS6:35 amBoston Logan Intl
$721
LATAM Airlines
Nov 24
BOS7:50 pmBoston Logan Intl
26h 50m
2 stops
POA12:40 amPorto Alegre Salgado Filho
Mar 20
POA2:25 pmPorto Alegre Salgado Filho
17h 10m
1 stop
BOS6:35 amBoston Logan Intl
$761
LATAM Airlines
Nov 17
BOS8:55 amBoston Logan Intl
22h 20m
1 stop
POA9:15 amPorto Alegre Salgado Filho
Nov 18
POA2:20 pmPorto Alegre Salgado Filho
25h 27m
2 stops
BOS1:47 pmBoston Logan Intl
$825

United Airlines flights from New Hampshire to Porto Alegre

Our best United Airlines deals on New Hampshire to Porto Alegre flight tickets
United Airlines
Jul 10
BOS5:45 amBoston Logan Intl
33h 25m
2 stops
POA4:10 pmPorto Alegre Salgado Filho
Jul 15
POA3:45 pmPorto Alegre Salgado Filho
34h 29m
2 stops
BOS1:14 amBoston Logan Intl
$813
United Airlines
Jun 29
BOS3:08 pmBoston Logan Intl
22h 22m
2 stops
POA2:30 pmPorto Alegre Salgado Filho
Jul 27
POA5:10 pmPorto Alegre Salgado Filho
27h 04m
2 stops
BOS7:14 pmBoston Logan Intl
$959
United Airlines
Jun 28
BOS5:45 amBoston Logan Intl
33h 40m
2 stops
POA4:25 pmPorto Alegre Salgado Filho
Jul 19
POA4:05 pmPorto Alegre Salgado Filho
20h 11m
2 stops
BOS11:16 amBoston Logan Intl
$966

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 June 16, 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 11/24

7:50 pm-12:40 am

2 stops26h 50m

Porto Alegre Salgado Filho

Sat 3/20

2:25 pm-6:35 am

1 stop17h 10m

$721

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Tue 11/24

7:50 pm-12:40 am

2 stops26h 50m

Porto Alegre Salgado Filho

Sat 3/20

2:25 pm-6:35 am

1 stop17h 10m

$761

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Tue 11/17

7:55 am-10:40 am

2 stops24h 45m

Porto Alegre Salgado Filho

Wed 11/18

2:00 pm-6:35 am

2 stops18h 35m

$787

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Fri 7/10

5:45 am-4:10 pm

2 stops33h 25m

Porto Alegre Salgado Filho

Wed 7/15

3:45 pm-1:14 am

2 stops34h 29m

$813

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Tue 11/17

8:55 am-9:15 am

1 stop22h 20m

Porto Alegre Salgado Filho

Wed 11/18

2:20 pm-1:47 pm

2 stops25h 27m

$825
Quickest round-trip

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Tue 11/17

8:55 am-12:40 am

1 stop13h 45m

Porto Alegre Salgado Filho

Wed 11/18

6:40 am-11:23 pm

2 stops18h 43m

$837

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Thu 7/2

3:00 pm-11:15 am

2 stops19h 15m

Porto Alegre Salgado Filho

Mon 7/27

7:05 pm-6:40 pm

2 stops24h 35m

$839

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Thu 7/2

1:35 pm-11:15 am

2 stops20h 40m

Porto Alegre Salgado Filho

Mon 7/27

6:40 am-11:33 pm

2 stops17h 53m

$841

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Mon 6/29

10:00 am-8:10 am

1 stop21h 10m

Porto Alegre Salgado Filho

Mon 7/27

6:40 am-11:33 pm

2 stops17h 53m

$842

ManchesterPorto Alegre

MHT - POA

MHTPOA

Manchester

Wed 12/2

6:45 pm-6:20 pm

2 stops21h 35m

Porto Alegre Salgado Filho

Sun 12/6

4:05 pm-3:03 pm

2 stops24h 58m

$1,581

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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?

Copa Airlines and LATAM Airlines are the most popular carriers 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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