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Cheap flights from New Hampshire to Porto Alegre from $369

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 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.
1 adult
1 adult, Economy, 0 bags
Travel Warning: Due to flooding, the airport may be currently closed. Check local travel advisories before booking.

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Find the cheapest flights from New Hampshire to Porto Alegre

Cheap round-trip flights

Enter your travel dates to find the best prices.
Copa Airlines Logo
8:43 am - 12:20 am
BOS
-
POA
14h 37m
1 stop
Copa Airlines Logo
1:20 am - 11:08 pm
POA
-
BOS
22h 48m
1 stop
$618Copa Airlines
Tue, Apr 14 - Mon, May 4
Multiple Airlines Logo
8:45 am - 1:45 pm
BOS
-
POA
28h 00m
2 stops
Multiple Airlines Logo
8:55 pm - 7:10 am
POA
-
BOS
35h 15m
2 stops
$754Multiple Airlines
Tue, Apr 14 - Tue, May 5
LATAM Airlines Logo
9:55 am - 11:15 am
BOS
-
POA
24h 20m
1 stop
LATAM Airlines Logo
4:45 am - 11:31 pm
POA
-
BOS
19h 46m
2 stops
$758LATAM Airlines
Wed, May 6 - Wed, May 13
LATAM Airlines Logo
5:35 am - 6:15 am
BOS
-
POA
23h 40m
2 stops
LATAM Airlines Logo
11:00 am - 7:35 am
POA
-
BOS
21h 35m
2 stops
$764LATAM Airlines
Wed, May 6 - Wed, May 13
Delta Logo
9:55 am - 12:40 am
BOS
-
POA
13h 45m
1 stop
Delta Logo
5:50 pm - 7:35 am
POA
-
BOS
14h 45m
1 stop
$766Delta
Thu, Aug 20 - Thu, Sep 10
LATAM Airlines Logo
3:00 pm - 2:15 pm
BOS
-
POA
22h 15m
2 stops
LATAM Airlines Logo
7:05 pm - 3:19 pm
POA
-
BOS
21h 14m
2 stops
$768LATAM Airlines
Tue, Aug 11 - Sun, Aug 30
LATAM Airlines Logo
5:00 pm - 2:15 pm
BOS
-
POA
20h 15m
2 stops
LATAM Airlines Logo
3:30 pm - 7:35 am
POA
-
BOS
17h 05m
2 stops
$770LATAM Airlines
Mon, Aug 17 - Tue, Sep 8
LATAM Airlines Logo
9:00 pm - 6:15 am
BOS
-
POA
32h 15m
2 stops
LATAM Airlines Logo
7:05 pm - 7:38 pm
POA
-
BOS
25h 33m
2 stops
$771LATAM Airlines
Tue, Apr 14 - Tue, May 5
LATAM Airlines Logo
9:55 am - 12:40 am
BOS
-
POA
13h 45m
1 stop
LATAM Airlines Logo
7:25 am - 1:06 am
POA
-
BOS
18h 41m
2 stops
$773LATAM Airlines
Thu, Aug 20 - Mon, Sep 7
LATAM Airlines Logo
9:55 am - 12:40 am
BOS
-
POA
13h 45m
1 stop
LATAM Airlines Logo
4:45 am - 11:25 pm
POA
-
BOS
19h 40m
2 stops
$776LATAM Airlines
Thu, Aug 20 - Sun, Sep 6

Delta flights from New Hampshire to Porto Alegre

Our best Delta deals on New Hampshire to Porto Alegre flight tickets
Delta
Aug 20
BOS9:55 amBoston Logan Intl
13h 45m
1 stop
POA12:40 amPorto Alegre Salgado Filho
Sep 10
POA5:50 pmPorto Alegre Salgado Filho
14h 45m
1 stop
BOS7:35 amBoston Logan Intl
$766
Delta
Aug 18
BOS12:45 pmBoston Logan Intl
24h 30m
2 stops
POA2:15 pmPorto Alegre Salgado Filho
Sep 8
POA5:50 pmPorto Alegre Salgado Filho
14h 45m
1 stop
BOS7:35 amBoston Logan Intl
$924
Delta
Mar 26
BOS2:00 pmBoston Logan Intl
23h 05m
2 stops
POA2:05 pmPorto Alegre Salgado Filho
Apr 1
POA5:50 pmPorto Alegre Salgado Filho
14h 45m
1 stop
BOS7:35 amBoston Logan Intl
$1,632

Avianca flights from New Hampshire to Porto Alegre

Our best Avianca deals on New Hampshire to Porto Alegre flight tickets
Avianca
Aug 22
BOS8:45 amBoston Logan Intl
24h 50m
2 stops
POA10:35 amPorto Alegre Salgado Filho
Sep 10
POA6:25 pmPorto Alegre Salgado Filho
37h 25m
2 stops
BOS6:50 amBoston Logan Intl
$914
Avianca
Mar 28
BOS8:55 amBoston Logan Intl
49h 00m
2 stops
POA10:55 amPorto Alegre Salgado Filho
Mar 31
POA11:35 amPorto Alegre Salgado Filho
44h 35m
2 stops
BOS7:10 amBoston Logan Intl
$982
Avianca
Mar 28
BOS8:55 amBoston Logan Intl
49h 00m
2 stops
POA10:55 amPorto Alegre Salgado Filho
Mar 31
POA12:20 amPorto Alegre Salgado Filho
31h 50m
2 stops
BOS7:10 amBoston Logan Intl
$1,022

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 March 17, 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 4/14

8:43 am-12:20 am

1 stop14h 37m

Porto Alegre Salgado Filho

Mon 5/4

1:20 am-11:08 pm

1 stop22h 48m

$618

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Tue 4/14

8:45 am-1:45 pm

2 stops28h 00m

Porto Alegre Salgado Filho

Tue 5/5

8:55 pm-7:10 am

2 stops35h 15m

$754

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Wed 5/6

9:55 am-11:15 am

1 stop24h 20m

Porto Alegre Salgado Filho

Wed 5/13

4:45 am-11:31 pm

2 stops19h 46m

$758

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Wed 5/6

5:35 am-6:15 am

2 stops23h 40m

Porto Alegre Salgado Filho

Wed 5/13

11:00 am-7:35 am

2 stops21h 35m

$764
Quickest round-trip

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Thu 8/20

9:55 am-12:40 am

1 stop13h 45m

Porto Alegre Salgado Filho

Thu 9/10

5:50 pm-7:35 am

1 stop14h 45m

$766

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Tue 8/11

3:00 pm-2:15 pm

2 stops22h 15m

Porto Alegre Salgado Filho

Sun 8/30

7:05 pm-3:19 pm

2 stops21h 14m

$768

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Mon 8/17

5:00 pm-2:15 pm

2 stops20h 15m

Porto Alegre Salgado Filho

Tue 9/8

3:30 pm-7:35 am

2 stops17h 05m

$770

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Tue 4/14

9:00 pm-6:15 am

2 stops32h 15m

Porto Alegre Salgado Filho

Tue 5/5

7:05 pm-7:38 pm

2 stops25h 33m

$771

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Thu 8/20

9:55 am-12:40 am

1 stop13h 45m

Porto Alegre Salgado Filho

Mon 9/7

7:25 am-1:06 am

2 stops18h 41m

$773

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Thu 8/20

9:55 am-12:40 am

1 stop13h 45m

Porto Alegre Salgado Filho

Sun 9/6

4:45 am-11:25 pm

2 stops19h 40m

$776

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 month to fly to Porto Alegre?

The cheapest month to fly to Porto Alegre from New Hampshire is in June. Flight prices, which tend to average around $486, are often lower during this time because this is during the off-season. If you’re not able to fly to Porto Alegre in June, then May is your next best option. Flight prices from New Hampshire to Porto Alegre during May average around $574.

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

  • 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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