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Cheap flights from London Heathrow Airport to Porto from $154

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 15/1. 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

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Find the cheapest flights from London Heathrow Airport to Porto

Cheap return flights

TAP AIR PORTUGAL Logo
16:30 - 22:00LHR-OPO
5h 30m1 stop
TAP AIR PORTUGAL Logo
06:55 - 12:40OPO-LHR
5h 45m1 stop
$235TAP AIR PORTUGAL
Find Deal
Sun, 2 Nov - Sun, 9 Nov
TAP AIR PORTUGAL Logo
13:40 - 19:00LHR-OPO
5h 20m1 stop
TAP AIR PORTUGAL Logo
09:55 - 15:30OPO-LHR
5h 35m1 stop
$276TAP AIR PORTUGAL
Find Deal
Thu, 6 Nov - Sun, 9 Nov
TAP AIR PORTUGAL Logo
13:40 - 18:55LHR-OPO
5h 15m1 stop
TAP AIR PORTUGAL Logo
12:00 - 17:30OPO-LHR
5h 30m1 stop
$279TAP AIR PORTUGAL
Find Deal
Sun, 2 Nov - Wed, 5 Nov
British Airways Logo
16:30 - 07:40LHR-OPO
15h 10m1 stop
British Airways Logo
20:40 - 11:55OPO-LHR
15h 15m1 stop
$351British Airways
Find Deal
Wed, 19 Nov - Mon, 24 Nov
British Airways Logo
08:25 - 07:40LHR-OPO
23h 15m1 stop
British Airways Logo
20:40 - 17:15OPO-LHR
20h 35m1 stop
$375British Airways
Find Deal
Sun, 2 Nov - Fri, 7 Nov
Brussels Airlines Logo
07:45 - 16:05LHR-OPO
8h 20m1 stop
Brussels Airlines Logo
12:55 - 21:35OPO-LHR
8h 40m1 stop
$420Brussels Airlines
Find Deal
Wed, 1 Oct - Thu, 16 Oct
Brussels Airlines Logo
11:05 - 16:05LHR-OPO
5h 00m1 stop
Brussels Airlines Logo
12:55 - 21:35OPO-LHR
8h 40m1 stop
$483Brussels Airlines
Find Deal
Wed, 8 Oct - Fri, 17 Oct
Vueling Logo
20:50 - 08:10LHR-OPO
11h 20m1 stop
Vueling Logo
08:45 - 18:00OPO-LHR
9h 15m1 stop
$549Vueling
Find Deal
Sat, 20 Dec - Mon, 29 Dec
KLM Logo
10:00 - 15:25LHR-OPO
5h 25m1 stop
KLM Logo
09:25 - 17:00OPO-LHR
7h 35m1 stop
$570KLM
Find Deal
Wed, 31 Dec - Sat, 3 Jan
KLM Logo
10:00 - 15:25LHR-OPO
5h 25m1 stop
KLM Logo
16:10 - 20:50OPO-LHR
4h 40m1 stop
$574KLM
Find Deal
Thu, 18 Dec - Wed, 31 Dec

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
LHR07:45London Heathrow
8h 20m
1 stop
OPO16:05Porto
16 Oct
OPO12:55Porto
8h 40m
1 stop
LHR21:35London Heathrow
$420
Find similar
Brussels Airlines
8 Oct
LHR11:05London Heathrow
5h 00m
1 stop
OPO16:05Porto
17 Oct
OPO12:55Porto
8h 40m
1 stop
LHR21:35London Heathrow
$483
Find similar
Brussels Airlines
1 Oct
LHR11:05London Heathrow
5h 00m
1 stop
OPO16:05Porto
16 Oct
OPO12:55Porto
8h 40m
1 stop
LHR21:35London Heathrow
$501
Find similar

TAP AIR PORTUGAL flights from London Heathrow Airport to Porto

Our best TAP AIR PORTUGAL deals on London Heathrow Airport to Porto flight tickets
TAP AIR PORTUGAL
2 Nov
LHR16:30London Heathrow
5h 30m
1 stop
OPO22:00Porto
9 Nov
OPO06:55Porto
5h 45m
1 stop
LHR12:40London Heathrow
$235
Find similar
TAP AIR PORTUGAL
6 Nov
LHR13:40London Heathrow
5h 20m
1 stop
OPO19:00Porto
9 Nov
OPO09:55Porto
5h 35m
1 stop
LHR15:30London Heathrow
$276
Find similar
TAP AIR PORTUGAL
2 Nov
LHR13:40London Heathrow
5h 15m
1 stop
OPO18:55Porto
5 Nov
OPO12:00Porto
5h 30m
1 stop
LHR17:30London Heathrow
$279
Find similar

momondo Fare Finder

 
Customise 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 78,305 searches. Data last updated 18 September 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

Sun 2/11

16:30-22:00

1 stop5h 30m

Porto

Sun 9/11

06:55-12:40

1 stop5h 45m

$235

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Thu 6/11

13:40-19:00

1 stop5h 20m

Porto

Sun 9/11

09:55-15:30

1 stop5h 35m

$276

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Sun 2/11

13:40-18:55

1 stop5h 15m

Porto

Wed 5/11

12:00-17:30

1 stop5h 30m

$279

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Wed 19/11

16:30-07:40

1 stop15h 10m

Porto

Mon 24/11

20:40-11:55

1 stop15h 15m

$351

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Sun 2/11

08:25-07:40

1 stop23h 15m

Porto

Fri 7/11

20:40-17:15

1 stop20h 35m

$375

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Wed 1/10

07:45-16:05

1 stop8h 20m

Porto

Thu 16/10

12:55-21:35

1 stop8h 40m

$420

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Wed 8/10

11:05-16:05

1 stop5h 00m

Porto

Fri 17/10

12:55-21:35

1 stop8h 40m

$483

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Sat 20/12

20:50-08:10

1 stop11h 20m

Porto

Mon 29/12

08:45-18:00

1 stop9h 15m

$549

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Wed 31/12

10:00-15:25

1 stop5h 25m

Porto

Sat 3/1

09:25-17:00

1 stop7h 35m

$570

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Thu 18/12

10:00-15:25

1 stop5h 25m

Porto

Wed 31/12

16:10-20:50

1 stop4h 40m

$574

Flights are sorted by cheapest return 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 $291. If you aren’t able to travel to Porto during the month of January, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $301.

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

Our data shows that Tuesday is the least expensive day to fly to Porto. Tickets to fly out on this day can be as low as $271. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from London Heathrow Airport to Porto for around $553.

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

Our most recent data shows that the best time of day to fly to Porto is at midday. Flights from London Heathrow Airport to Porto during this time can be as low as $232. Flights in the morning are often more expensive, with an average ticket price of $313.

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 $419 when searching weeks before you fly. 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 $352 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 136% 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 return 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?

    There are 1304.5 km between London Heathrow and Porto. A reasonable flight in good conditions will take 5h 00m.

  • 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 updated daily.

  • How many operators does momondo search for flights from London Heathrow Airport to Porto Airport?

  • 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 stopovers. 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 travel and health documents you'll need for your trip to Porto Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Porto Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from London Heathrow Airport to Porto?

Best airlines flying from London Heathrow Airport to Porto

Compare and see reviews for airlines that fly from London Heathrow Airport to Porto with momondo
Airline
Rating
Free cancellation
Price
British AirwaysPriceFrom $550Free cancellationRating
6.7
7,367 reviews
Search British Airways flights

Travelling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Coimbra
Vila Nova de Gaia

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Porto . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to Porto from London with this policy.

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

momondo provides multiple filters to help you find the best flight to Porto from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for London to Porto flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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