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Cheap flights from London Heathrow Airport to Porto from C$ 148

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Porto departing on 6/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from London Heathrow Airport to Porto

Cheap round-trip flights

Logo
8:40 a.m. - 3:25 p.m.LHR-OPO
6h 45m1 stop
Logo
11:25 a.m. - 6:20 p.m.OPO-LHR
6h 55m1 stop
C$ 284
Find Deal
Sat, 1 Nov - Sat, 15 Nov
KLM Logo
8:40 a.m. - 3:25 p.m.LHR-OPO
6h 45m1 stop
KLM Logo
4:10 p.m. - 8:50 p.m.OPO-LHR
4h 40m1 stop
C$ 291KLM
Find Deal
Sat, 10 Jan - Wed, 14 Jan
KLM Logo
10:00 a.m. - 3:25 p.m.LHR-OPO
5h 25m1 stop
KLM Logo
4:10 p.m. - 8:50 p.m.OPO-LHR
4h 40m1 stop
C$ 293KLM
Find Deal
Fri, 9 Jan - Wed, 14 Jan
Logo
6:00 a.m. - 5:00 p.m.LHR-OPO
11h 00m1 stop
Logo
10:00 p.m. - 9:10 a.m.OPO-LHR
11h 10m1 stop
C$ 299
Find Deal
Fri, 3 Oct - Tue, 7 Oct
TAP AIR PORTUGAL Logo
1:40 p.m. - 7:00 p.m.LHR-OPO
5h 20m1 stop
TAP AIR PORTUGAL Logo
9:55 a.m. - 3:30 p.m.OPO-LHR
5h 35m1 stop
C$ 313TAP AIR PORTUGAL
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Thu, 6 Nov - Sun, 9 Nov
TAP AIR PORTUGAL Logo
12:25 p.m. - 6:00 p.m.LHR-OPO
5h 35m1 stop
TAP AIR PORTUGAL Logo
9:55 a.m. - 3:30 p.m.OPO-LHR
5h 35m1 stop
C$ 314TAP AIR PORTUGAL
Find Deal
Thu, 6 Nov - Sun, 9 Nov
British Airways Logo
5:00 p.m. - 7:40 a.m.LHR-OPO
14h 40m1 stop
British Airways Logo
8:40 p.m. - 12:05 p.m.OPO-LHR
15h 25m1 stop
C$ 318British Airways
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Fri, 9 Jan - Fri, 16 Jan
British Airways Logo
7:30 a.m. - 7:40 a.m.LHR-OPO
24h 10m1 stop
British Airways Logo
8:40 p.m. - 12:05 p.m.OPO-LHR
15h 25m1 stop
C$ 329British Airways
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Tue, 9 Dec - Fri, 12 Dec
Lufthansa Logo
6:35 a.m. - 12:50 p.m.LHR-OPO
6h 15m1 stop
Lufthansa Logo
1:45 p.m. - 10:55 p.m.OPO-LHR
9h 10m1 stop
C$ 332Lufthansa
Find Deal
Wed, 10 Dec - Mon, 15 Dec
Lufthansa Logo
6:35 a.m. - 1:10 p.m.LHR-OPO
6h 35m1 stop
Lufthansa Logo
1:45 p.m. - 7:35 p.m.OPO-LHR
5h 50m1 stop
C$ 336Lufthansa
Find Deal
Thu, 8 Jan - Sat, 10 Jan

Lufthansa flights from London Heathrow Airport to Porto

Our best Lufthansa deals on London Heathrow Airport to Porto flight tickets
Lufthansa
10 Dec
LHR6:35 a.m.London Heathrow
6h 15m
1 stop
OPO12:50 p.m.Porto
15 Dec
OPO1:45 p.m.Porto
9h 10m
1 stop
LHR10:55 p.m.London Heathrow
C$ 332
Find similar
Lufthansa
8 Jan
LHR6:35 a.m.London Heathrow
6h 35m
1 stop
OPO1:10 p.m.Porto
10 Jan
OPO1:45 p.m.Porto
5h 50m
1 stop
LHR7:35 p.m.London Heathrow
C$ 336
Find similar
Lufthansa
8 Jan
LHR6:35 a.m.London Heathrow
6h 35m
1 stop
OPO1:10 p.m.Porto
15 Jan
OPO12:30 p.m.Porto
6h 20m
1 stop
LHR6:50 p.m.London Heathrow
C$ 346
Find similar

Brussels Airlines flights from London Heathrow Airport to Porto

Our best Brussels Airlines deals on London Heathrow Airport to Porto flight tickets
Brussels Airlines
27 Aug
LHR11:05 a.m.London Heathrow
4h 55m
1 stop
OPO4:00 p.m.Porto
6 Sep
OPO10:10 a.m.Porto
10h 45m
1 stop
LHR8:55 p.m.London Heathrow
C$ 349
Find similar
Brussels Airlines
7 Jan
LHR6:50 a.m.London Heathrow
5h 15m
1 stop
OPO12:05 p.m.Porto
15 Jan
OPO12:55 p.m.Porto
8h 25m
1 stop
LHR9:20 p.m.London Heathrow
C$ 352
Find similar
Brussels Airlines
24 Aug
LHR7:45 a.m.London Heathrow
8h 15m
1 stop
OPO4:00 p.m.Porto
2 Sep
OPO7:40 p.m.Porto
25h 55m
1 stop
LHR9:35 p.m.London Heathrow
C$ 367
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from London Heathrow Airport to Porto 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 96,600 searches. Data last updated 31 July 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Sat 1/11

8:40 a.m.-3:25 p.m.

1 stop6h 45m

Porto

Sat 15/11

11:25 a.m.-6:20 p.m.

1 stop6h 55m

C$ 284

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Sat 10/1

8:40 a.m.-3:25 p.m.

1 stop6h 45m

Porto

Wed 14/1

4:10 p.m.-8:50 p.m.

1 stop4h 40m

C$ 291

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Fri 9/1

10:00 a.m.-3:25 p.m.

1 stop5h 25m

Porto

Wed 14/1

4:10 p.m.-8:50 p.m.

1 stop4h 40m

C$ 293

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Fri 3/10

6:00 a.m.-5:00 p.m.

1 stop11h 00m

Porto

Tue 7/10

10:00 p.m.-9:10 a.m.

1 stop11h 10m

C$ 299

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Thu 6/11

1:40 p.m.-7:00 p.m.

1 stop5h 20m

Porto

Sun 9/11

9:55 a.m.-3:30 p.m.

1 stop5h 35m

C$ 313

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Thu 6/11

12:25 p.m.-6:00 p.m.

1 stop5h 35m

Porto

Sun 9/11

9:55 a.m.-3:30 p.m.

1 stop5h 35m

C$ 314

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Fri 9/1

5:00 p.m.-7:40 a.m.

1 stop14h 40m

Porto

Fri 16/1

8:40 p.m.-12:05 p.m.

1 stop15h 25m

C$ 318

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Tue 9/12

7:30 a.m.-7:40 a.m.

1 stop24h 10m

Porto

Fri 12/12

8:40 p.m.-12:05 p.m.

1 stop15h 25m

C$ 329

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Wed 10/12

6:35 a.m.-12:50 p.m.

1 stop6h 15m

Porto

Mon 15/12

1:45 p.m.-10:55 p.m.

1 stop9h 10m

C$ 332

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Thu 8/1

6:35 a.m.-1:10 p.m.

1 stop6h 35m

Porto

Sat 10/1

1:45 p.m.-7:35 p.m.

1 stop5h 50m

C$ 336

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 from

How to get the cheapest flight ticket from London Heathrow Airport to Porto

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 typical price of a round-trip flight between London Heathrow Airport and Porto?

What is the cheapest month to fly to Porto?

In general, January is the cheapest month to fly from London Heathrow Airport to Porto. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 268. If you’re not able to fly to Porto in January, then November is your next best option. Flight prices from London Heathrow Airport to Porto during November average around C$ 277.

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

The cheapest day to depart from London Heathrow Airport to Porto is on a Saturday. Travellers who choose to depart for Porto on a Saturday will often find tickets for as low as C$ 210. If your travel schedule is flexible, try to avoid departing on a Wednesday because tickets tend to average around C$ 422. These prices are subject to change though, so be sure to set up a Price Alert for flights to Porto.

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

In the evening is the cheapest time of day to fly from London Heathrow Airport to Porto when you can find flight prices for as low as C$ 185. Flying to Porto in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the afternoon because they tend to be around C$ 324. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Porto from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto for around C$ 384 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Porto from London Heathrow Airport for as low as C$ 316 on momondo.

How have London Heathrow Airport to Porto flight prices changed over time?

As of July 2025, prices for London Heathrow Airport to Porto flights are approximately 43% more expensive when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Porto

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Porto according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap London Heathrow Airport to Porto (LHR to OPO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Porto

Best price found

C$ 148

Fastest flight time

4h 20m

Direct flights

None

Airports in Porto

1 airport
The best one-way flight to Porto from London Heathrow Airport in the past 72 hours is C$ 148. The best round-trip flight deal from London Heathrow Airport to Porto found on momondo in the last 72 hours is C$ 284.
The fastest flight from London Heathrow Airport to Porto takes 4h 20m
There are no direct flights from London Heathrow Airport to Porto. Popular non-direct route for this connection is London Heathrow Airport - Porto Airport.
There is 1 airport near Porto: Porto (OPO)
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  • How far is London Heathrow to Porto by plane?

    The distance between London Heathrow and Porto is about 1304.5 km. 4h 20m is a normal flight duration for this route.

  • When did momondo last update prices for flights from London Heathrow Airport to Porto Airport?

    Prices for flights from London Heathrow Airport to Porto Airport are refreshed on a daily basis.

  • How old do you have to be to fly from London Heathrow Airport to Porto Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Porto Airport.

  • What documentation or ID do you need to fly to Porto Airport?

    The necessary travel and health documents for your Porto Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Coimbra
Braga
Matosinhos
Vila Nova de Gaia
Aveiro
Lamego
Esposende
Pinhao
Guimarães
Mira

Why use momondo?

Why should I use momondo to find a flight deal from London to Porto?

It is quick and easy to find London to Porto flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Porto that suits you.

Can I find flights from London to Porto with flexible booking policies on momondo?

Flights from London to Porto with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from London to Porto?

Once you have performed a search for London to Porto flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from London to Porto right now. Can momondo alert me if prices change?

Price alerts on flights to Porto from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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