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£337+ Cheap flights to Porto Alegre

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
— POA
7 Mar — 14 Mar1
1 adult
1 adult, Economy, 0 bags

Flights to Porto Alegre in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Porto Alegre
Explore the most affordable flight options available to Porto Alegre. Find the lowest fares based on data from user searches, with prices last updated on 5 February 2026.

Fri 6/319:55
LHR
-
POA
1 stop26h 45m
TAP AIR PORTUGAL
Sat 14/321:10
POA
-
LHR
1 stop18h 45m
TAP AIR PORTUGAL
Deal found 4/2£707
Sat 7/306:00
LHR
-
POA
1 stop16h 40m
TAP AIR PORTUGAL
Sat 14/321:10
POA
-
LHR
1 stop15h 20m
TAP AIR PORTUGAL
Deal found 4/2£717
Mon 2/318:30
LHR
-
POA
1 stop28h 10m
TAP AIR PORTUGAL
Tue 17/321:10
POA
-
LHR
1 stop22h 30m
TAP AIR PORTUGAL
Deal found 4/2£720
Thu 19/317:25
LGW
-
POA
2 stops27h 25m
Multiple Airlines
Thu 26/311:40
POA
-
LGW
2 stops18h 20m
Multiple Airlines
Deal found 2/2£745
Mon 2/307:30
LGW
-
POA
3 stops42h 20m
Multiple Airlines
Wed 1/401:35
POA
-
LGW
2 stops28h 25m
Multiple Airlines
Deal found 2/2£767
Tue 7/417:25
LGW
-
POA
2 stops27h 35m
Multiple Airlines
Wed 22/410:00
POA
-
LGW
2 stops19h 00m
Multiple Airlines
Deal found 3/2£781
Tue 7/406:00
LHR
-
POA
2 stops38h 25m
Multiple Airlines
Wed 22/412:25
POA
-
LHR
2 stops29h 35m
Multiple Airlines
Deal found 3/2£782
Mon 2/320:15
LHR
-
POA
1 stop16h 05m
LATAM Airlines
Thu 19/320:10
POA
-
LHR
1 stop14h 55m
LATAM Airlines
Deal found 3/2£799
Wed 4/306:20
LHR
-
POA
2 stops20h 20m
Air France
Sun 15/313:40
POA
-
LHR
2 stops23h 55m
Air France
Deal found 4/2£806
Fri 6/321:25
LGW
-
POA
2 stops25h 15m
TAP AIR PORTUGAL
Sat 14/321:10
POA
-
LGW
2 stops20h 30m
TAP AIR PORTUGAL
Deal found 4/2£808
Thu 5/306:30
LHR
-
POA
2 stops20h 10m
Multiple Airlines
Sun 15/313:40
POA
-
LHR
2 stops23h 55m
Multiple Airlines
Deal found 4/2£808
Mon 2/321:25
LGW
-
POA
2 stops25h 15m
TAP AIR PORTUGAL
Tue 17/321:10
POA
-
LGW
1 stop15h 35m
TAP AIR PORTUGAL
Deal found 4/2£812

Find flight deals to Porto Alegre

Find the latest flights to Porto Alegre in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 5 February 2026.

Return from

£707

One-way from

£337

Popular in

July

Cheapest in

May

Average price

£764
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 6/3-14/3
  • 2 total stops
  • 45h 30m total
  • London to Porto Alegre
Search Deals
4/3
  • 4/3
  • 3 total stops
  • 27h 30m total
  • London to Porto Alegre
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£145 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£30 potential savings vs. average return price).
Search Deals
Average for return flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Locate flights to Porto Alegre that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 5 February 2026.
Use the filters below to find and compare flights to Porto Alegre that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Fri 6/3

19:55-19:40

1 stop26h 45m

Porto Alegre Salgado Filho

Sat 14/3

21:10-18:55

1 stop18h 45m

£707

LondonPorto Alegre

LGW - POA

LGWPOA

London Gatwick

Thu 19/3

17:25-17:50

2 stops27h 25m

Porto Alegre Salgado Filho

Thu 26/3

11:40-09:00

2 stops18h 20m

£745

LondonPorto Alegre

LGW - POA

LGWPOA

London Gatwick

Mon 2/3

07:30-22:50

3 stops42h 20m

Porto Alegre Salgado Filho

Wed 1/4

01:35-10:00

2 stops28h 25m

£767

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Tue 7/4

06:00-16:25

2 stops38h 25m

Porto Alegre Salgado Filho

Wed 22/4

12:25-22:00

2 stops29h 35m

£782

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Fri 6/3

20:50-22:50

3 stops29h 00m

Porto Alegre Salgado Filho

Sat 14/3

20:10-18:55

2 stops19h 45m

£801

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Mon 2/3

20:15-09:20

1 stop16h 05m

Porto Alegre Salgado Filho

Thu 19/3

20:10-14:05

1 stop14h 55m

£804

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Wed 4/3

06:20-23:40

2 stops20h 20m

Porto Alegre Salgado Filho

Sun 15/3

13:40-16:35

2 stops23h 55m

£806

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Thu 5/3

06:30-23:40

2 stops20h 10m

Porto Alegre Salgado Filho

Sun 15/3

13:40-16:35

2 stops23h 55m

£808

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Mon 2/3

18:30-19:40

1 stop28h 10m

Porto Alegre Salgado Filho

Thu 19/3

11:00-11:25

2 stops21h 25m

£837

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Mon 4/5

06:30-23:55

2 stops21h 25m

Porto Alegre Salgado Filho

Thu 21/5

18:25-17:35

2 stops19h 10m

£841

Flights are sorted by cheapest return flights first.

Deals found on 4/2

Showing 1-10 of 47 results
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Best time to book a flight to Porto Alegre

Have a flexible travel schedule? Discover the best time to fly to Porto Alegre with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight to Porto Alegre

When is the best time to book a flight to Porto Alegre?

Use this chart to determine the optimal time to book a return flight from London to Porto Alegre. Price data was last updated on 30 January 2026.

The price you pay for your flight to Porto Alegre may vary depending on when you book. For the best chance of a lower fare, look to book 80 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

How long is the flight to Porto Alegre?

On average, a flight from London to Porto Alegre takes 18 hours 13 minutes. Flights to Porto Alegre from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

What are the most popular airlines that fly to Porto Alegre?

The most popular airlines flying from London to Porto Alegre are LATAM Airlines, TAP AIR PORTUGAL and Virgin Atlantic.

LATAM Airlines
LATAM Airlines
From £703
TAP AIR PORTUGAL
TAP AIR PORTUGAL
From £607
Virgin Atlantic
Virgin Atlantic
From £864
Lufthansa
Lufthansa
From £578

What are the cheapest airlines that fly to Porto Alegre?

The cheapest airlines flying from London to Porto Alegre are TAP AIR PORTUGAL, LATAM Airlines and Virgin Atlantic.

Rainfall in Porto Alegre by month

Plan your trip to Porto Alegre by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Porto Alegre ranges from 70.0 - 130.0 inches per month. September is typically the wettest month, when rainfall can reach 130.0 mm. November is typically the driest time to visit Porto Alegre when rainfall is around 70.0 mm.

Temperature in Porto Alegre by month

Plan your trip to Porto Alegre by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Porto Alegre, use this chart to help with planning. For those seeking warmer temperatures, February is the ideal time of year to visit, when temperatures reach an average of 25.0 C. Travellers hoping to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 13.0 C).

Reviews of airlines servicing Porto Alegre

Get insights into the airlines that provide service to Porto Alegre. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto Alegre. Reviews last updated 5 February 2026.
Read reviews from past customers who have flown KLM, LATAM Airlines, andVirgin Atlantic to Brazil. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,449 reviews
Check prices

Food

7.3

Crew

8.4

Overall

7.7

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,449 reviews
KLM
7.7
Good
1,449 reviews
Check prices

Food

7.3

Crew

8.4

Overall

7.7

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
LATAM Airlines
7.5
Good
1,917 reviews
KLM
7.7
Good
1,449 reviews
Check prices

Food

7.3

Crew

8.4

Overall

7.7

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Virgin Atlantic
7.5
Good
678 reviews
KLM
7.7
Good
1,449 reviews
Check prices

Food

7.3

Crew

8.4

Overall

7.7

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
TAP AIR PORTUGAL
7.1
Good
2,134 reviews
KLM
7.7
Good
1,449 reviews
Check prices

Food

7.3

Crew

8.4

Overall

7.7

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Lufthansa
6.8
Okay
7,761 reviews
KLM
7.7
Good
1,449 reviews
Check prices

Food

7.3

Crew

8.4

Overall

7.7

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

FAQs about flying to Porto Alegre

  • What airport do you fly into for flights to Porto Alegre?

    If you book a flight to Porto Alegre, you will be flying into Salgado Filho, which is the city’s only airport. Porto Alegre Salgado Filho (POA) is located 4.0 mi from the center of Porto Alegre.

  • Can I find cheaper flights to Porto Alegre if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Porto Alegre on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Porto Alegre?

    Based on reviews from Cheapflights users, TAP AIR PORTUGAL is rated the highest out of the airlines that fly to Porto Alegre.

  • What is the cheapest airport to fly to in Porto Alegre?

    Porto Alegre Salgado Filho is currently the cheapest airport to fly to in Porto Alegre. One-way flights to Porto Alegre Salgado Filho typically cost £49, while return flights cost around £56.

  • How much is a return flight to Porto Alegre?

    A return flight to Porto Alegre will typically cost around £84, however they can be found for as little as £56.

  • Where does the fastest flight to Porto Alegre depart from?

    For those looking to save time traveling to Porto Alegre, London offers the quickest one-way flight (16 hours 40 minutes).

  • Does Porto Alegre Salgado Filho have car hire?

    Yes. Those touching down at Porto Alegre Salgado Filho can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Porto Alegre Salgado Filho?

    Yes. Porto Alegre Salgado Filho has hotels nearby for those requiring accommodations. Motel Porto dos Casais is the closest property to Porto Alegre Salgado Filho (0.0 mi away from Porto Alegre Salgado Filho).

See more FAQs

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