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Cheap flights from London Heathrow Airport to Porto from C$ 114

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 28/10. 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

TAP AIR PORTUGAL Logo
1:40 p.m. - 6:55 p.m.LHR-OPO
5h 15m1 stop
TAP AIR PORTUGAL Logo
10:55 a.m. - 5:30 p.m.OPO-LHR
6h 35m1 stop
C$ 256TAP AIR PORTUGAL
Find Deal
dom., 2 nov. - mié., 5 nov.
TAP AIR PORTUGAL Logo
1:40 p.m. - 6:55 p.m.LHR-OPO
5h 15m1 stop
TAP AIR PORTUGAL Logo
4:05 p.m. - 9:35 p.m.OPO-LHR
5h 30m1 stop
C$ 257TAP AIR PORTUGAL
Find Deal
dom., 2 nov. - mié., 5 nov.
Logo
3:15 p.m. - 8:20 a.m.LHR-OPO
17h 05m1 stop
Logo
7:05 p.m. - 2:25 p.m.OPO-LHR
19h 20m1 stop
C$ 277
Find Deal
jue., 22 ene. - vie., 23 ene.
KLM Logo
11:15 a.m. - 10:25 p.m.LHR-OPO
11h 10m1 stop
KLM Logo
11:15 a.m. - 5:00 p.m.OPO-LHR
5h 45m1 stop
C$ 281KLM
Find Deal
sáb., 24 ene. - lun., 26 ene.
British Airways Logo
6:15 a.m. - 8:00 p.m.LHR-OPO
13h 45m1 stop
British Airways Logo
8:40 p.m. - 9:15 a.m.OPO-LHR
12h 35m1 stop
C$ 323British Airways
Find Deal
lun., 15 dic. - sáb., 10 ene.
British Airways Logo
6:15 a.m. - 11:45 a.m.LHR-OPO
5h 30m1 stop
British Airways Logo
8:40 p.m. - 5:15 p.m.OPO-LHR
20h 35m1 stop
C$ 334British Airways
Find Deal
dom., 14 dic. - vie., 9 ene.
KLM Logo
11:45 a.m. - 6:40 p.m.LHR-OPO
6h 55m1 stop
KLM Logo
11:15 a.m. - 5:00 p.m.OPO-LHR
5h 45m1 stop
C$ 345KLM
Find Deal
mar., 16 dic. - lun., 22 dic.
Logo
6:00 a.m. - 11:25 a.m.LHR-OPO
5h 25m1 stop
Logo
6:55 a.m. - 12:40 p.m.OPO-LHR
5h 45m1 stop
C$ 365
Find Deal
jue., 23 oct. - dom., 26 oct.
Brussels Airlines Logo
7:45 a.m. - 4:05 p.m.LHR-OPO
8h 20m1 stop
Brussels Airlines Logo
12:55 p.m. - 8:55 p.m.OPO-LHR
8h 00m1 stop
C$ 385Brussels Airlines
Find Deal
mié., 1 oct. - jue., 16 oct.
Brussels Airlines Logo
6:50 a.m. - 4:05 p.m.LHR-OPO
9h 15m1 stop
Brussels Airlines Logo
12:55 p.m. - 9:20 p.m.OPO-LHR
8h 25m1 stop
C$ 428Brussels Airlines
Find Deal
mié., 22 oct. - jue., 6 nov.

British Airways flights from London Heathrow Airport to Porto

Our best British Airways deals on London Heathrow Airport to Porto flight tickets
British Airways
15 Dec
LHR6:15 a.m.London Heathrow
13h 45m
1 stop
OPO8:00 p.m.Porto
10 Jan
OPO8:40 p.m.Porto
12h 35m
1 stop
LHR9:15 a.m.London Heathrow
C$ 322
Find similar
British Airways
14 Dec
LHR6:15 a.m.London Heathrow
5h 30m
1 stop
OPO11:45 a.m.Porto
9 Jan
OPO8:40 p.m.Porto
20h 35m
1 stop
LHR5:15 p.m.London Heathrow
C$ 334
Find similar
British Airways
15 Dec
LHR7:30 a.m.London Heathrow
24h 10m
1 stop
OPO7:40 a.m.Porto
7 Jan
OPO8:40 p.m.Porto
19h 25m
1 stop
LHR4:05 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
1 Oct
LHR7:45 a.m.London Heathrow
8h 20m
1 stop
OPO4:05 p.m.Porto
16 Oct
OPO12:55 p.m.Porto
8h 00m
1 stop
LHR8:55 p.m.London Heathrow
C$ 385
Find similar
Brussels Airlines
22 Oct
LHR6:50 a.m.London Heathrow
9h 15m
1 stop
OPO4:05 p.m.Porto
6 Nov
OPO12:55 p.m.Porto
8h 25m
1 stop
LHR9:20 p.m.London Heathrow
C$ 428
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 15 septiembre 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

dom. 2/11

1:40 p.m.-6:55 p.m.

1 stop5h 15m

Porto

mié. 5/11

10:55 a.m.-5:30 p.m.

1 stop6h 35m

C$ 256

LondonPorto

LHR - OPO

LHROPO

London Heathrow

dom. 2/11

1:40 p.m.-6:55 p.m.

1 stop5h 15m

Porto

mié. 5/11

4:05 p.m.-9:35 p.m.

1 stop5h 30m

C$ 257

LondonPorto

LHR - OPO

LHROPO

London Heathrow

jue. 22/1

3:15 p.m.-8:20 a.m.

1 stop17h 05m

Porto

vie. 23/1

7:05 p.m.-2:25 p.m.

1 stop19h 20m

C$ 277

LondonPorto

LHR - OPO

LHROPO

London Heathrow

sáb. 24/1

11:15 a.m.-10:25 p.m.

1 stop11h 10m

Porto

lun. 26/1

11:15 a.m.-5:00 p.m.

1 stop5h 45m

C$ 281

LondonPorto

LHR - OPO

LHROPO

London Heathrow

lun. 15/12

6:15 a.m.-8:00 p.m.

1 stop13h 45m

Porto

sáb. 10/1

8:40 p.m.-9:15 a.m.

1 stop12h 35m

C$ 322

LondonPorto

LHR - OPO

LHROPO

London Heathrow

dom. 14/12

6:15 a.m.-11:45 a.m.

1 stop5h 30m

Porto

vie. 9/1

8:40 p.m.-5:15 p.m.

1 stop20h 35m

C$ 334

LondonPorto

LHR - OPO

LHROPO

London Heathrow

mar. 16/12

11:45 a.m.-6:40 p.m.

1 stop6h 55m

Porto

lun. 22/12

11:15 a.m.-5:00 p.m.

1 stop5h 45m

C$ 345

LondonPorto

LHR - OPO

LHROPO

London Heathrow

jue. 23/10

6:00 a.m.-11:25 a.m.

1 stop5h 25m

Porto

dom. 26/10

6:55 a.m.-12:40 p.m.

1 stop5h 45m

C$ 365

LondonPorto

LHR - OPO

LHROPO

London Heathrow

mié. 1/10

7:45 a.m.-4:05 p.m.

1 stop8h 20m

Porto

jue. 16/10

12:55 p.m.-8:55 p.m.

1 stop8h 00m

C$ 385

LondonPorto

LHR - OPO

LHROPO

London Heathrow

mié. 22/10

6:50 a.m.-4:05 p.m.

1 stop9h 15m

Porto

jue. 6/11

12:55 p.m.-9:20 p.m.

1 stop8h 25m

C$ 428

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 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$ 269. 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$ 278.

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$ 404. 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$ 387 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$ 325 on momondo.

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

As of September 2025, prices for London Heathrow Airport to Porto flights are approximately 140% 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

Direct flights

None
There are no direct flights from London Heathrow Airport to Porto. There are no popular flight routes from London Heathrow Airport to Porto.
Search flight deals

  • How far is London Heathrow to Porto by plane?

    The distance between London Heathrow and Porto is about 1304.5 km. 5h 15m 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
Braga
Coimbra
Matosinhos
Vila Nova de Gaia
Aveiro
Lamego
Pinhao
Esposende
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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