Latest deals
Insights
FAQs
Price Alerts

Cheap flights from New Hampshire to Porto Alegre from $345

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 2/19. 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.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
7:00 am - 5:00 pmBOS-POA
33h 00m2 stops
LATAM Airlines Logo
6:40 am - 11:29 pmPOA-BOS
17h 49m2 stops
$581LATAM Airlines
Find Deal
Tue, Mar 24 - Thu, Mar 26
GOL Logo
7:55 am - 4:30 pmBOS-POA
30h 35m2 stops
GOL Logo
11:40 am - 6:35 amPOA-BOS
20h 55m2 stops
$767GOL
Find Deal
Tue, Nov 25 - Wed, Dec 17
Multiple Airlines Logo
8:55 am - 12:40 amBOS-POA
13h 45m1 stop
Multiple Airlines Logo
9:35 am - 6:35 amPOA-BOS
23h 00m2 stops
$860Multiple Airlines
Find Deal
Wed, Nov 26 - Mon, Dec 15
Multiple Airlines Logo
8:55 am - 9:20 amBOS-POA
22h 25m1 stop
Multiple Airlines Logo
9:35 am - 6:35 amPOA-BOS
23h 00m2 stops
$882Multiple Airlines
Find Deal
Fri, Nov 28 - Mon, Dec 15
Delta Logo
8:55 am - 12:40 amBOS-POA
13h 45m1 stop
Delta Logo
7:45 am - 1:27 amPOA-BOS
19h 42m2 stops
$888Delta
Find Deal
Wed, Nov 26 - Thu, Dec 18
Delta Logo
5:40 am - 6:30 amBOS-POA
22h 50m2 stops
Delta Logo
6:05 pm - 6:35 amPOA-BOS
14h 30m1 stop
$946Delta
Find Deal
Sun, Nov 16 - Wed, Dec 24
Copa Airlines Logo
8:44 am - 12:25 amBOS-POA
14h 41m1 stop
Copa Airlines Logo
1:30 am - 11:10 pmPOA-BOS
22h 40m1 stop
$1,056Copa Airlines
Find Deal
Tue, Mar 24 - Wed, Mar 25
Copa Airlines Logo
8:44 am - 12:25 amBOS-POA
14h 41m1 stop
Copa Airlines Logo
1:30 am - 2:42 pmPOA-BOS
14h 12m1 stop
$1,091Copa Airlines
Find Deal
Tue, Mar 24 - Wed, Mar 25
United Airlines Logo
7:38 pm - 4:20 pmBOS-POA
18h 42m2 stops
United Airlines Logo
3:25 pm - 12:43 pmPOA-BOS
23h 18m2 stops
$1,100United Airlines
Find Deal
Mon, Nov 24 - Tue, Dec 16
United Airlines Logo
7:28 pm - 2:35 pmMHT-POA
18h 07m2 stops
United Airlines Logo
2:05 pm - 1:58 pmPOA-MHT
24h 53m2 stops
$1,158United Airlines
Find Deal
Sun, Mar 22 - Thu, Mar 26

LATAM Airlines flights from New Hampshire to Porto Alegre

Our best LATAM Airlines deals on New Hampshire to Porto Alegre flight tickets
LATAM Airlines
Mar 24
BOS7:00 amBoston Logan Intl
33h 00m
2 stops
POA5:00 pmPorto Alegre Salgado Filho
Mar 26
POA6:40 amPorto Alegre Salgado Filho
17h 49m
2 stops
BOS11:29 pmBoston Logan Intl
$581
Find similar
LATAM Airlines
Oct 31
BOS7:25 amBoston Logan Intl
22h 05m
2 stops
POA6:30 amPorto Alegre Salgado Filho
Nov 7
POA6:00 pmPorto Alegre Salgado Filho
20h 35m
2 stops
BOS12:35 pmBoston Logan Intl
$817
Find similar
LATAM Airlines
Oct 31
BOS7:25 amBoston Logan Intl
22h 05m
2 stops
POA6:30 amPorto Alegre Salgado Filho
Nov 6
POA4:40 amPorto Alegre Salgado Filho
20h 20m
2 stops
BOS11:00 pmBoston Logan Intl
$819
Find similar

GOL flights from New Hampshire to Porto Alegre

Our best GOL deals on New Hampshire to Porto Alegre flight tickets
GOL
Nov 25
BOS7:55 amBoston Logan Intl
30h 35m
2 stops
POA4:30 pmPorto Alegre Salgado Filho
Dec 17
POA11:40 amPorto Alegre Salgado Filho
20h 55m
2 stops
BOS6:35 amBoston Logan Intl
$767
Find similar
GOL
Nov 16
BOS11:56 amBoston Logan Intl
34h 49m
2 stops
POA12:45 amPorto Alegre Salgado Filho
Dec 24
POA11:40 amPorto Alegre Salgado Filho
20h 55m
2 stops
BOS6:35 amBoston Logan Intl
$833
Find similar
GOL
Nov 24
BOS3:53 pmBoston Logan Intl
23h 57m
2 stops
POA5:50 pmPorto Alegre Salgado Filho
Dec 17
POA6:00 amPorto Alegre Salgado Filho
26h 35m
2 stops
BOS6:35 amBoston Logan Intl
$940
Find similar

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 October 30, 2025.
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

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Tue 3/24

7:00 am-5:00 pm

2 stops33h 00m

Porto Alegre Salgado Filho

Thu 3/26

6:40 am-11:29 pm

2 stops17h 49m

$581

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Tue 11/25

7:55 am-4:30 pm

2 stops30h 35m

Porto Alegre Salgado Filho

Wed 12/17

11:40 am-6:35 am

2 stops20h 55m

$767

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Wed 11/26

8:55 am-12:40 am

1 stop13h 45m

Porto Alegre Salgado Filho

Mon 12/15

9:35 am-6:35 am

2 stops23h 00m

$860

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Fri 11/28

8:55 am-9:20 am

1 stop22h 25m

Porto Alegre Salgado Filho

Mon 12/15

9:35 am-6:35 am

2 stops23h 00m

$882

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Wed 11/26

8:55 am-12:40 am

1 stop13h 45m

Porto Alegre Salgado Filho

Thu 12/18

7:45 am-1:27 am

2 stops19h 42m

$888

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Sun 11/16

5:40 am-6:30 am

2 stops22h 50m

Porto Alegre Salgado Filho

Wed 12/24

6:05 pm-6:35 am

1 stop14h 30m

$946

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Tue 3/24

8:44 am-12:25 am

1 stop14h 41m

Porto Alegre Salgado Filho

Wed 3/25

1:30 am-11:10 pm

1 stop22h 40m

$1,056

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Tue 3/24

8:44 am-12:25 am

1 stop14h 41m

Porto Alegre Salgado Filho

Wed 3/25

1:30 am-2:42 pm

1 stop14h 12m

$1,091

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Mon 11/24

7:38 pm-4:20 pm

2 stops18h 42m

Porto Alegre Salgado Filho

Tue 12/16

3:25 pm-12:43 pm

2 stops23h 18m

$1,100

ManchesterPorto Alegre

MHT - POA

MHTPOA

Manchester

Sun 3/22

7:28 pm-2:35 pm

2 stops18h 07m

Porto Alegre Salgado Filho

Thu 3/26

2:05 pm-1:58 pm

2 stops24h 53m

$1,158

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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 $569.

What is the cheapest day to depart on your flight to Porto Alegre?

Our data shows that Tuesday is the least expensive day to fly to Porto Alegre. Tickets to fly out on this day can be as low as $714. On the other hand, Friday is the most expensive day to depart from New Hampshire because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,701.

What is the cheapest time of day to depart on your flight to Porto Alegre?

Our most recent data shows that the best time of day to fly to Porto Alegre is in the evening. Flights from New Hampshire to Porto Alegre during this time can be as low as $865. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,064 on average. Flights to Porto Alegre from New Hampshire at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Porto Alegre?

You are more likely to see cheaper flights to Porto Alegre from New Hampshire when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto Alegre for around $732 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Porto Alegre from New Hampshire for as low as $550 on momondo.

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

Direct flights

None
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.

An easier way to manage your Porto Alegre trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 11/29
Sat 12/6
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Brazil