How long is the flight from London to Porto Alegre?

There are many flights that can get you from London to Porto Alegre in 16h 40m. Fly via LATAM Airlines, TAP AIR PORTUGAL, or ITA Airways to get the fastest option. The distance between London and Porto Alegre is about 6410 mi. Both multi-stop and direct flights can be found to your destination and back.

What are the cheapest airlines flying from London to Porto Alegre round-trip?

TAP AIR PORTUGAL, at £622, was found to be the cheapest airline from London to Porto Alegre.Alternate airlines flying return to your destination include Air France and LATAM Airlines. These flights start at 30% lower than the current average price 3 months from now.

What is the cheapest day to fly from London to Porto Alegre?

Travellers seeking maximum savings on their London to Porto Alegre flight should consider departing on Tuesday mornings when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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.

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).

What are the most popular routes from London to Porto Alegre?

The most popular route from London to Porto Alegre is London Heathrow - Porto Alegre Salgado Filho. You may also consider London City - Porto Alegre Salgado Filho or London Gatwick - Porto Alegre Salgado Filho.

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

When booking a flight from London to Porto Alegre, you may want to consider flying on Air France, LATAM Airlines or TAP AIR PORTUGAL as they are the most popular for this route.

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

If you book a flight to Porto Alegre from London, you will be flying to 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. There are 0 flights from London to Salgado Filho per day from 3 different airlines.

Can I find deals for flights from London to Porto Alegre that include hotel bookings?

Yes. In addition to deals on London to Porto Alegre flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from London to Porto Alegre?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Porto Alegre.

Can I find deals for business class flights from London to Porto Alegre?

Yes. Cheapflights offers flight deals from London to Porto Alegre by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£465+ Flights from London to Porto Alegre

Cheapflights Tip: The best prices from London to Porto Alegre Salgado Filho are usually found in October or March, booked 80 days in advance, depart on a Thursday or Tuesday and return on a Friday

Cheap flight deals from London to Porto Alegre

Round-trip from	£698
One-way from	£637
Popular in	July
Cheapest in	October
Average price	£785

6/11-16/11
5 total stops
60h 30m total
London to Porto Alegre

Search Deals

15/12
2 total stops
27h 10m total
London to Porto Alegre

Search Deals

Highest demand for flights based on searches. 22% potential increase in price (£185 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£27 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from London to Porto Alegre

Cheapest flights from London to Porto Alegre
Explore the most affordable flight options available from London to Porto Alegre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Mon 22/918:45LHR - POA

1 stop31h 00mTAP AIR PORTUGAL

Sat 11/1001:40POA - LHR

1 stop17h 15mTAP AIR PORTUGAL

Deal found 16/9£693

Thu 6/1114:00LGW - POA

2 stops31h 50mMultiple Airlines

Sun 16/1105:40POA - LGW

3 stops28h 40mMultiple Airlines

Deal found 17/9£698

Thu 25/906:00LHR - POA

1 stop18h 25mTAP AIR PORTUGAL

Sat 4/1001:30POA - LHR

1 stop16h 30mTAP AIR PORTUGAL

Deal found 16/9£701

Mon 22/906:30LHR - POA

2 stops22h 00mMultiple Airlines

Sun 12/1017:05POA - LHR

2 stops21h 30mMultiple Airlines

Deal found 16/9£718

Fri 31/1020:05LGW - POA

2 stops30h 50mMultiple Airlines

Fri 7/1120:30POA - LGW

2 stops19h 55mMultiple Airlines

Deal found 16/9£748

Wed 17/919:50LHR - POA

1 stop28h 35mTAP AIR PORTUGAL

Sat 27/901:40POA - LHR

1 stop31h 05mTAP AIR PORTUGAL

Deal found 16/9£758

Fri 31/1008:55LHR - POA

3 stops42h 00mMultiple Airlines

Fri 7/1120:30POA - LHR

2 stops22h 05mMultiple Airlines

Deal found 16/9£787

Thu 18/921:20LHR - POA

1 stop16h 00mLATAM Airlines

Fri 17/1006:40POA - LHR

1 stop28h 25mLATAM Airlines

Deal found 17/9£800

Thu 6/1111:05LHR - POA

3 stops27h 00mMultiple Airlines

Sun 16/1120:10POA - LHR

1 stop14h 55mMultiple Airlines

Deal found 17/9£807

Sat 8/1106:00LHR - POA

1 stop16h 40mTAP AIR PORTUGAL

Sat 22/1121:10POA - LHR

1 stop22h 30mTAP AIR PORTUGAL

Deal found 16/9£816

Thu 6/1108:25LCY - POA

2 stops32h 55mITA Airways

Sun 16/1111:15POA - LCY

2 stops25h 55mITA Airways

Deal found 17/9£924

Sat 15/1110:00LGW - POA

2 stops27h 35mAir Europa

Sat 29/1109:15POA - LGW

2 stops20h 45mAir Europa

Deal found 16/9£930

Best flights from London to Porto Alegre
Discover carefully curated flight deals from London to Porto Alegre that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2025.

Fri 31/1020:05LGW - POA

2 stops30h 50mMultiple Airlines

Fri 7/1120:30POA - LGW

2 stops19h 55mMultiple Airlines

Deal found 16/9£748

Wed 4/220:15LHR - POA

1 stop23h 50mLATAM Airlines

Tue 3/304:45POA - LHR

1 stop30h 20mLATAM Airlines

Deal found 16/9£785

Sat 8/1106:00LHR - POA

1 stop16h 40mTAP AIR PORTUGAL

Sat 22/1121:10POA - LHR

1 stop22h 30mTAP AIR PORTUGAL

Deal found 16/9£816

Thu 12/216:45LCY - POA

2 stops33h 30mITA Airways

Mon 23/215:25POA - LCY

2 stops21h 45mITA Airways

Deal found 16/9£872

Wed 22/1008:40LHR - POA

2 stops20h 15mKLM

Thu 6/1113:40POA - LHR

2 stops21h 10mKLM

Deal found 17/9£892

Sat 15/1110:00LGW - POA

2 stops27h 35mAir Europa

Sat 29/1109:15POA - LGW

2 stops20h 45mAir Europa

Deal found 16/9£930

Sat 15/1110:05LGW - POA

2 stops50h 10mTurkish Airlines

Sat 29/1117:35POA - LGW

2 stops43h 35mTurkish Airlines

Deal found 17/9£933

Fri 31/1019:55LHR - POA

2 stops31h 00mMultiple Airlines

Fri 7/1120:30POA - LHR

2 stops22h 05mMultiple Airlines

Deal found 16/9£790

Sat 15/1106:00LHR - POA

1 stop16h 40mTAP AIR PORTUGAL

Sat 29/1121:10POA - LHR

1 stop18h 45mTAP AIR PORTUGAL

Deal found 16/9£851

Fri 31/1020:15LHR - POA

1 stop26h 05mLATAM Airlines

Fri 7/1106:40POA - LHR

1 stop28h 25mLATAM Airlines

Deal found 16/9£887

Wed 22/1008:40LHR - POA

2 stops20h 15mKLM

Tue 11/1111:40POA - LHR

2 stops20h 05mKLM

Deal found 17/9£933

Tue 21/1016:50LCY - POA

2 stops34h 25mITA Airways

Tue 11/1111:15POA - LCY

2 stops20h 40mITA Airways

Deal found 17/9£945

Tue 21/1017:15LGW - POA

2 stops43h 30mTurkish Airlines

Wed 12/1115:25POA - LGW

2 stops38h 45mTurkish Airlines

Deal found 17/9£954

Wed 22/1008:40LHR - POA

2 stops20h 15mMultiple Airlines

Sat 8/1119:20POA - LHR

2 stops18h 15mMultiple Airlines

Deal found 17/9£895

Tue 21/1008:40LHR - POA

2 stops20h 15mKLM

Thu 13/1111:40POA - LHR

2 stops23h 10mKLM

Deal found 17/9£939

Tue 21/1016:50LCY - POA

2 stops34h 25mITA Airways

Wed 12/1109:45POA - LCY

2 stops22h 10mITA Airways

Deal found 17/9£950

Tue 21/1017:15LGW - POA

2 stops43h 30mTurkish Airlines

Tue 11/1115:25POA - LGW

2 stops45h 45mTurkish Airlines

Deal found 17/9£954

Sat 8/1106:30LHR - POA

2 stops20h 25mMultiple Airlines

Sat 22/1118:25POA - LHR

2 stops19h 10mMultiple Airlines

Deal found 16/9£925

Tue 21/1016:50LCY - POA

2 stops43h 55mITA Airways

Thu 6/1109:45POA - LCY

2 stops27h 25mITA Airways

Deal found 17/9£950

Thu 6/1108:25LCY - POA

2 stops31h 45mMultiple Airlines

Sat 15/1104:30POA - LCY

2 stops27h 25mMultiple Airlines

Deal found 17/9£938

Tue 21/1016:50LCY - POA

2 stops34h 25mITA Airways

Sun 9/1111:15POA - LCY

2 stops25h 55mITA Airways

Deal found 17/9£950

Tue 21/1016:50LCY - POA

2 stops34h 25mMultiple Airlines

Thu 13/1111:40POA - LCY

2 stops20h 15mMultiple Airlines

Deal found 17/9£945

Tue 21/1016:50LCY - POA

2 stops43h 55mITA Airways

Sat 15/1110:30POA - LCY

2 stops26h 40mITA Airways

Deal found 17/9£950

Tue 21/1016:50LCY - POA

2 stops43h 55mITA Airways

Mon 10/1109:45POA - LCY

2 stops27h 25mITA Airways

Deal found 17/9£950

Fri 31/1008:25LCY - POA

2 stops41h 20mMultiple Airlines

Fri 7/1111:40POA - LCY

2 stops20h 15mMultiple Airlines

Deal found 16/9£951

Sat 15/1111:35LCY - POA

2 stops27h 55mMultiple Airlines

Sat 29/1113:40POA - LCY

2 stops42h 15mMultiple Airlines

Deal found 16/9£952

Wed 22/1010:55LGW - POA

2 stops41h 25mMultiple Airlines

Tue 4/1121:10POA - LGW

1 stop15h 35mMultiple Airlines

Deal found 17/9£954

Sat 15/1116:35LGW - POA

2 stops29h 05mMultiple Airlines

Sat 29/1121:10POA - LGW

1 stop33h 40mMultiple Airlines

Deal found 16/9£963

Sat 8/1116:35LGW - POA

2 stops29h 05mMultiple Airlines

Sat 22/1121:10POA - LGW

1 stop33h 40mMultiple Airlines

Deal found 16/9£963

Last-minute flights from London to Porto Alegre
Discover last-minute flight deals from London to Porto Alegre. Data last updated 18 September 2025 and is based on user searches.

Wed 17/919:50LHR - POA

1 stop28h 35mTAP AIR PORTUGAL

Sat 27/901:40POA - LHR

1 stop31h 05mTAP AIR PORTUGAL

Deal found 16/9£758

Thu 18/921:20LHR - POA

1 stop16h 00mLATAM Airlines

Fri 17/1006:40POA - LHR

1 stop28h 25mLATAM Airlines

Deal found 17/9£800

Thu 18/907:10LHR - POA

2 stops30h 10mMultiple Airlines

Fri 17/1006:40POA - LHR

1 stop28h 25mMultiple Airlines

Deal found 16/9£832

Mon 22/918:45LHR - POA

1 stop31h 00mTAP AIR PORTUGAL

Sat 11/1001:40POA - LHR

1 stop17h 15mTAP AIR PORTUGAL

Deal found 16/9£693

Mon 22/906:30LHR - POA

2 stops22h 00mMultiple Airlines

Sun 12/1017:05POA - LHR

2 stops21h 30mMultiple Airlines

Deal found 16/9£718

Thu 25/906:00LHR - POA

1 stop18h 25mTAP AIR PORTUGAL

Sat 4/1001:30POA - LHR

1 stop16h 30mTAP AIR PORTUGAL

Deal found 16/9£701

Tue 21/1016:50LCY - POA

2 stops34h 25mMultiple Airlines

Thu 13/1111:40POA - LCY

2 stops20h 15mMultiple Airlines

Deal found 17/9£945

Tue 21/1016:50LCY - POA

2 stops43h 55mITA Airways

Fri 14/1109:45POA - LCY

2 stops22h 10mITA Airways

Deal found 17/9£950

Tue 21/1017:15LGW - POA

2 stops43h 30mTurkish Airlines

Tue 11/1115:25POA - LGW

2 stops45h 45mTurkish Airlines

Deal found 17/9£954

Fri 31/1020:05LGW - POA

2 stops30h 50mMultiple Airlines

Fri 7/1120:30POA - LGW

2 stops19h 55mMultiple Airlines

Deal found 16/9£748

Fri 31/1008:55LHR - POA

3 stops42h 00mMultiple Airlines

Fri 7/1120:30POA - LHR

2 stops22h 05mMultiple Airlines

Deal found 16/9£787

Fri 31/1008:25LCY - POA

2 stops41h 20mMultiple Airlines

Fri 7/1111:40POA - LCY

2 stops20h 15mMultiple Airlines

Deal found 16/9£951

One-way flights from London to Porto Alegre
Search for one-way flight options from London to Porto Alegre. Find affordable one-way fares based on user searches. Data last updated 18 September 2025.

Mon 15/1219:30LHR - POA

2 stops27h 10mMultiple Airlines

Deal found 17/9£637

Mon 15/1218:30LHR - POA

1 stop28h 10mTAP AIR PORTUGAL

Deal found 17/9£936

Sun 28/920:35LGW - POA

3 stops55h 20mMultiple Airlines

Deal found 17/9£1,276

Sun 28/920:50LHR - POA

3 stops55h 05mMultiple Airlines

Deal found 17/9£1,366

Sun 28/921:20LHR - POA

1 stop16h 00mVirgin Atlantic

Deal found 17/9£2,679

Sun 28/916:55LCY - POA

2 stops45h 50mITA Airways

Deal found 17/9£2,762

Sun 28/914:10LCY - POA

3 stops21h 55mMultiple Airlines

Deal found 17/9£4,596

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to Porto Alegre that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonPorto Alegre

LGW - POA

LGWPOA

London Gatwick

Fri 31/10

20:05-23:55

2 stops30h 50m

Porto Alegre Salgado Filho

Fri 7/11

20:30-19:25

2 stops19h 55m

£748

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Wed 4/2

20:15-17:05

1 stop23h 50m

Porto Alegre Salgado Filho

Tue 3/3

04:45-14:05

1 stop30h 20m

£785

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Fri 31/10

19:55-23:55

2 stops31h 00m

Porto Alegre Salgado Filho

Fri 7/11

20:30-21:35

2 stops22h 05m

£790

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Sat 8/11

06:00-19:40

1 stop16h 40m

Porto Alegre Salgado Filho

Sat 22/11

21:10-22:40

1 stop22h 30m

£816

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Sat 15/11

06:00-19:40

1 stop16h 40m

Porto Alegre Salgado Filho

Sat 29/11

21:10-18:55

1 stop18h 45m

£851

LondonPorto Alegre

LCY - POA

LCYPOA

London City

Thu 12/2

16:45-23:15

2 stops33h 30m

Porto Alegre Salgado Filho

Mon 23/2

15:25-16:10

2 stops21h 45m

£872

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Fri 31/10

20:15-19:20

1 stop26h 05m

Porto Alegre Salgado Filho

Fri 7/11

06:40-14:05

1 stop28h 25m

£887

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Wed 22/10

08:40-00:55

2 stops20h 15m

Porto Alegre Salgado Filho

Thu 6/11

13:40-13:50

2 stops21h 10m

£892

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Wed 22/10

08:40-00:55

2 stops20h 15m

Porto Alegre Salgado Filho

Sat 8/11

19:20-16:35

2 stops18h 15m

£895

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Sat 8/11

06:30-23:55

2 stops20h 25m

Porto Alegre Salgado Filho

Sat 22/11

18:25-16:35

2 stops19h 10m

£925

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 39 results

Best time to book a flight from London to Porto Alegre

Have a flexible travel schedule? Discover the best time to fly to Porto Alegre from London 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 from London to Porto Alegre

How far ahead should I book a flight from London to Porto Alegre?

The best time to book flights from London to Porto Alegre is 80 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest time of day to fly from LON to POA?

It’s optimal to fly from London to Porto Alegre in the morning. By choosing this option you can save up to 7% on the cost of your flight, compared to a flight in the afternoon.

What’s the top stopover airport for flights from London to Porto Alegre?

Sao Paulo (GRU) – chosen by Cheapflights users on 74% of one-stop itineraries from London to Porto Alegre on Cheapflights.

What’s the cheapest stopover airport for flights from London to Porto Alegre?

Sao Paulo (GRU) is the most affordable one-stop option, with an average return flight price of £839.

What’s the fastest stopover option from London to Porto Alegre?

Flights via Sao Paulo (GRU) have the shortest average one-way travel time for one-stop routes: 16h 00m.

Which airport typically offers the quickest stopover for flights from London to Porto Alegre?

Flights via Sao Paulo (GRU) offer the fastest connection on this route, with an average stopover time of 2h 51m.

Reviews of airlines servicing Porto Alegre

Get a feel of what it's like to fly with KLM, LATAM Airlines, andVirgin Atlantic from London to Porto Alegre by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

KLM

7.8

Good

1,386 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

LATAM Airlines

7.5

Good

1,849 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Virgin Atlantic

7.4

Good

664 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

TAP AIR PORTUGAL

7.1

Good

1,977 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Lufthansa

6.8

Okay

7,409 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Related info for your journey

What airport do you fly into for flights to Porto Alegre from London?
If you book a flight to Porto Alegre from London, you will be flying to 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. There are 0 flights from London to Salgado Filho per day from 3 different airlines.
How long is the flight from London to Porto Alegre?
There are many flights that can get you from London to Porto Alegre in 16h 40m. Fly via LATAM Airlines, TAP AIR PORTUGAL, or ITA Airways to get the fastest option. The distance between London and Porto Alegre is about 6410 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from London to Porto Alegre round-trip?
TAP AIR PORTUGAL, at £622, was found to be the cheapest airline from London to Porto Alegre.Alternate airlines flying return to your destination include Air France and LATAM Airlines. These flights start at 30% lower than the current average price 3 months from now.
What are the most popular routes from London to Porto Alegre?
The most popular route from London to Porto Alegre is London Heathrow - Porto Alegre Salgado Filho. You may also consider London City - Porto Alegre Salgado Filho or London Gatwick - Porto Alegre Salgado Filho.
Can I find deals for flights from London to Porto Alegre that include hotel bookings?
Yes. In addition to deals on London to Porto Alegre flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from London to Porto Alegre?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Porto Alegre.
Can I find deals for business class flights from London to Porto Alegre?
Yes. Cheapflights offers flight deals from London to Porto Alegre by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for London to Porto Alegre

Heathrow to Porto Alegre flights

Gatwick to Porto Alegre flights

Manchester to Porto Alegre flights

Birmingham to Porto Alegre flights

Edinburgh to Porto Alegre flights

Top 3 airlines flying from London to Porto Alegre

Airline	Cheapest	Average	Flexibility	On-time
TAP AIR PORTUGAL	Cheapest£622	Average£910	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Air France	Cheapest£635	Average£742	FlexibilityNo cancel fee	On-time77%	Search Air France flights
LATAM Airlines	Cheapest£694	Average£945	FlexibilityNo cancel fee	On-time81%	Search LATAM Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from London to Porto Alegre?

Cheapflights makes it easy to find London to Porto Alegre flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from London to Porto Alegre?

Millions of users choose and trust Cheapflights to book the best flight deals from London to Porto Alegre for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from London to Porto Alegre with no change fees?

Yes, we can. To see specific flights from London to Porto Alegre with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from London to Porto Alegre become cheaper?

Yes, Cheapflights offers price alerts on London to Porto Alegre flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from London to Porto Alegre from £465

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 13/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from London to Porto Alegre Salgado Filho are usually found in October or March, booked 80 days in advance, depart on a Thursday or Tuesday and return on a Friday

Cheap flight deals from London to Porto Alegre

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from London to Porto Alegre

Cheapest flights from London to Porto AlegreExplore the most affordable flight options available from London to Porto Alegre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Explore the most affordable flight options available from London to Porto Alegre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

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Use the filters below to find and compare flights from London to Porto Alegre that are best for you.

Best time to book a flight from London to Porto Alegre

Have a flexible travel schedule? Discover the best time to fly to Porto Alegre from London with our price prediction graph.

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Everything you need to know about your flight from London to Porto Alegre

How far ahead should I book a flight from London 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 12 September 2025.

What is the cheapest time of day to fly from LON to POA?

Find hourly flight availability from London to Porto Alegre. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 September 2025.

What’s the top stopover airport for flights from London to Porto Alegre?

Share of one-stop return flights from London to Porto Alegre chosen by Cheapflights users in the past 12 months, using the same stopover each way.

What’s the cheapest stopover airport for flights from London to Porto Alegre?

Average return fare for one-stop flights from London to Porto Alegre, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

What’s the fastest stopover option from London to Porto Alegre?

Shortest average travel time for one-stop one-way flights from London to Porto Alegre, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Which airport typically offers the quickest stopover for flights from London to Porto Alegre?

Average stopover duration for one-stop one-way flights from London to Porto Alegre, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Reviews of airlines servicing Porto Alegre

Get a feel of what it's like to fly with KLM, LATAM Airlines, andVirgin Atlantic from London to Porto Alegre by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from London to Porto Alegre. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

How long is the flight from London to Porto Alegre?

What are the cheapest airlines flying from London to Porto Alegre round-trip?

What are the most popular routes from London to Porto Alegre?

Can I find deals for flights from London to Porto Alegre that include hotel bookings?

How can I find direct flights from London to Porto Alegre?

Can I find deals for business class flights from London to Porto Alegre?

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Alternative routes for London to Porto Alegre

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Top 3 airlines flying from London to Porto Alegre

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Cheapest flights from London to Porto Alegre
Explore the most affordable flight options available from London to Porto Alegre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.