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Cheap flights from London Heathrow Airport to Porto from $116

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 23/4. 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
1 adult, Economy, 0 bags

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Find the cheapest flights from London Heathrow Airport to Porto

Cheap return flights

Enter your travel dates to find the best prices.
Vueling Logo
09:55 - 16:10
LHR
-
OPO
6h 15m
1 stop
Vueling Logo
22:00 - 09:10
OPO
-
LHR
11h 10m
1 stop
$262Vueling
Wed, 6 May - Fri, 8 May
Multiple Airlines Logo
11:45 - 18:10
LHR
-
OPO
6h 25m
1 stop
Multiple Airlines Logo
06:30 - 13:45
OPO
-
LHR
7h 15m
1 stop
$320Multiple Airlines
Tue, 30 Jun - Sun, 26 Jul
Multiple Airlines Logo
17:10 - 22:15
LHR
-
OPO
5h 05m
1 stop
Multiple Airlines Logo
06:15 - 13:45
OPO
-
LHR
7h 30m
1 stop
$329Multiple Airlines
Thu, 14 May - Tue, 19 May
TAP AIR PORTUGAL Logo
06:00 - 19:00
LHR
-
OPO
13h 00m
1 stop
TAP AIR PORTUGAL Logo
22:30 - 12:45
OPO
-
LHR
14h 15m
1 stop
$336TAP AIR PORTUGAL
Mon, 27 Apr - Mon, 4 May
Air France Logo
15:20 - 22:00
LHR
-
OPO
6h 40m
1 stop
Air France Logo
05:55 - 13:45
OPO
-
LHR
7h 50m
1 stop
$342Air France
Fri, 15 May - Fri, 22 May
Multiple Airlines Logo
11:45 - 18:10
LHR
-
OPO
6h 25m
1 stop
Multiple Airlines Logo
06:30 - 13:45
OPO
-
LHR
7h 15m
1 stop
$343Multiple Airlines
Tue, 30 Jun - Sun, 26 Jul
Multiple Airlines Logo
17:10 - 22:15
LHR
-
OPO
5h 05m
1 stop
Multiple Airlines Logo
05:55 - 16:35
OPO
-
LHR
10h 40m
1 stop
$351Multiple Airlines
Tue, 19 May - Sat, 23 May
KLM Logo
09:55 - 15:30
LHR
-
OPO
5h 35m
1 stop
KLM Logo
11:30 - 19:25
OPO
-
LHR
7h 55m
1 stop
$356KLM
Tue, 14 Apr - Tue, 21 Apr
TAP AIR PORTUGAL Logo
18:45 - 00:40
LHR
-
OPO
5h 55m
1 stop
TAP AIR PORTUGAL Logo
05:05 - 10:20
OPO
-
LHR
5h 15m
1 stop
$358TAP AIR PORTUGAL
Thu, 23 Apr - Mon, 27 Apr
TAP AIR PORTUGAL Logo
18:45 - 00:40
LHR
-
OPO
5h 55m
1 stop
TAP AIR PORTUGAL Logo
16:00 - 22:00
OPO
-
LHR
6h 00m
1 stop
$359TAP AIR PORTUGAL
Thu, 23 Apr - Mon, 27 Apr

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
27 Apr
LHR06:00London Heathrow
13h 00m
1 stop
OPO19:00Porto
4 May
OPO22:30Porto
14h 15m
1 stop
LHR12:45London Heathrow
$336
TAP AIR PORTUGAL
23 Apr
LHR18:45London Heathrow
5h 55m
1 stop
OPO00:40Porto
27 Apr
OPO05:05Porto
5h 15m
1 stop
LHR10:20London Heathrow
$358
TAP AIR PORTUGAL
23 Apr
LHR18:45London Heathrow
5h 55m
1 stop
OPO00:40Porto
27 Apr
OPO16:00Porto
6h 00m
1 stop
LHR22:00London Heathrow
$359

KLM flights from London Heathrow Airport to Porto

Our best KLM deals on London Heathrow Airport to Porto flight tickets
KLM
14 Apr
LHR09:55London Heathrow
5h 35m
1 stop
OPO15:30Porto
21 Apr
OPO11:30Porto
7h 55m
1 stop
LHR19:25London Heathrow
$356
KLM
28 May
LHR11:45London Heathrow
6h 35m
1 stop
OPO18:20Porto
1 June
OPO05:00Porto
5h 45m
1 stop
LHR10:45London Heathrow
$375
KLM
19 June
LHR11:45London Heathrow
7h 30m
1 stop
OPO19:15Porto
24 June
OPO19:10Porto
12h 30m
1 stop
LHR07:40London Heathrow
$398

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 4 April 2026.
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

Cheapest return flight

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Wed 6/5

09:55-16:10

1 stop6h 15m

Porto

Fri 8/5

22:00-09:10

1 stop11h 10m

$262

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Tue 30/6

11:45-18:10

1 stop6h 25m

Porto

Sun 26/7

06:30-13:45

1 stop7h 15m

$320

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Thu 14/5

17:10-22:15

1 stop5h 05m

Porto

Tue 19/5

06:15-13:45

1 stop7h 30m

$329

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Mon 27/4

06:00-19:00

1 stop13h 00m

Porto

Mon 4/5

22:30-12:45

1 stop14h 15m

$336

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Fri 15/5

15:20-22:00

1 stop6h 40m

Porto

Fri 22/5

05:55-13:45

1 stop7h 50m

$342

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Tue 30/6

11:45-18:10

1 stop6h 25m

Porto

Sun 26/7

06:30-13:45

1 stop7h 15m

$343

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Tue 19/5

17:10-22:15

1 stop5h 05m

Porto

Sat 23/5

05:55-16:35

1 stop10h 40m

$351

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Tue 14/4

09:55-15:30

1 stop5h 35m

Porto

Tue 21/4

11:30-19:25

1 stop7h 55m

$356
Fastest return journey

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Thu 23/4

18:45-00:40

1 stop5h 55m

Porto

Mon 27/4

05:05-10:20

1 stop5h 15m

$358

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Thu 23/4

18:45-00:40

1 stop5h 55m

Porto

Mon 27/4

16:00-22:00

1 stop6h 00m

$359

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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2

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 $288. 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 $317.

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 $262. 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 $535.

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 $224. Flights in the morning are often more expensive, with an average ticket price of $289.

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 $416 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 $319 on momondo.

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

As of April 2026, prices for London Heathrow Airport to Porto flights are approximately 25% 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

Fastest flight time

6h 40m

Direct flights

None
The fastest flight from London Heathrow Airport to Porto takes 6h 40m
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

Frequently asked questions about flying from London Heathrow Airport to Porto

  • 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 6h 40m.

  • 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 $531Free cancellationRating
6.7
7,848 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
Aveiro

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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