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Cheap flights from London Heathrow Airport to Porto from $109

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 18/5. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from London Heathrow Airport to Porto

Cheap return flights

Enter your travel dates to find the best prices.
Vueling Logo
15:30 - 07:50
LHR
-
OPO
16h 20m
1 stop
Vueling Logo
20:40 - 14:45
OPO
-
LHR
18h 05m
1 stop
$229Vueling
Fri, 8 May - Thu, 14 May
Vueling Logo
15:30 - 07:50
LHR
-
OPO
16h 20m
1 stop
Vueling Logo
20:40 - 14:45
OPO
-
LHR
18h 05m
1 stop
$240Vueling
Fri, 8 May - Thu, 14 May
Vueling Logo
15:30 - 07:50
LHR
-
OPO
16h 20m
1 stop
Vueling Logo
20:15 - 14:45
OPO
-
LHR
18h 30m
1 stop
$272Vueling
Fri, 8 May - Tue, 19 May
Vueling Logo
20:50 - 08:00
LHR
-
OPO
11h 10m
1 stop
Vueling Logo
22:00 - 09:10
OPO
-
LHR
11h 10m
1 stop
$296Vueling
Sat, 30 May - Thu, 4 Jun
Multiple Airlines Logo
20:50 - 08:00
LHR
-
OPO
11h 10m
1 stop
Multiple Airlines Logo
11:00 - 17:45
OPO
-
LHR
6h 45m
1 stop
$301Multiple Airlines
Sat, 30 May - Thu, 4 Jun
TAP AIR PORTUGAL Logo
16:35 - 23:10
LHR
-
OPO
6h 35m
1 stop
TAP AIR PORTUGAL Logo
06:00 - 15:35
OPO
-
LHR
9h 35m
1 stop
$310TAP AIR PORTUGAL
Thu, 10 Sep - Sun, 13 Sep
TAP AIR PORTUGAL Logo
18:45 - 00:40
LHR
-
OPO
5h 55m
1 stop
TAP AIR PORTUGAL Logo
16:00 - 22:05
OPO
-
LHR
6h 05m
1 stop
$311TAP AIR PORTUGAL
Tue, 5 May - Fri, 15 May
TAP AIR PORTUGAL Logo
19:50 - 08:00
LHR
-
OPO
12h 10m
1 stop
TAP AIR PORTUGAL Logo
05:05 - 17:45
OPO
-
LHR
12h 40m
1 stop
$321TAP AIR PORTUGAL
Fri, 11 Sep - Mon, 14 Sep
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
$326Multiple Airlines
Wed, 6 May - Sat, 9 May
TAP AIR PORTUGAL Logo
11:20 - 19:00
LHR
-
OPO
7h 40m
1 stop
TAP AIR PORTUGAL Logo
22:30 - 22:55
OPO
-
LHR
24h 25m
1 stop
$335TAP AIR PORTUGAL
Sat, 13 Jun - Sun, 28 Jun

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Vueling flights from London Heathrow Airport to Porto

Our best Vueling deals on London Heathrow Airport to Porto flight tickets
Vueling
8 May
LHR15:30London Heathrow
16h 20m
1 stop
OPO07:50Porto
14 May
OPO20:40Porto
18h 05m
1 stop
LHR14:45London Heathrow
$229
Vueling
8 May
LHR15:30London Heathrow
16h 20m
1 stop
OPO07:50Porto
14 May
OPO20:40Porto
18h 05m
1 stop
LHR14:45London Heathrow
$240
Vueling
8 May
LHR15:30London Heathrow
16h 20m
1 stop
OPO07:50Porto
19 May
OPO20:15Porto
18h 30m
1 stop
LHR14:45London Heathrow
$272

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
10 Sept
LHR16:35London Heathrow
6h 35m
1 stop
OPO23:10Porto
13 Sept
OPO06:00Porto
9h 35m
1 stop
LHR15:35London Heathrow
$310
TAP AIR PORTUGAL
5 May
LHR18:45London Heathrow
5h 55m
1 stop
OPO00:40Porto
15 May
OPO16:00Porto
6h 05m
1 stop
LHR22:05London Heathrow
$311
TAP AIR PORTUGAL
11 Sept
LHR19:50London Heathrow
12h 10m
1 stop
OPO08:00Porto
14 Sept
OPO05:05Porto
12h 40m
1 stop
LHR17:45London Heathrow
$321

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 19 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

Fri 8/5

15:30-07:50

1 stop16h 20m

Porto

Thu 14/5

20:40-14:45

1 stop18h 05m

$229

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Fri 8/5

15:30-07:50

1 stop16h 20m

Porto

Thu 14/5

20:40-14:45

1 stop18h 05m

$240

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Fri 8/5

15:30-07:50

1 stop16h 20m

Porto

Tue 19/5

20:15-14:45

1 stop18h 30m

$272

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Sat 30/5

20:50-08:00

1 stop11h 10m

Porto

Thu 4/6

22:00-09:10

1 stop11h 10m

$296

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Sat 30/5

20:50-08:00

1 stop11h 10m

Porto

Thu 4/6

11:00-17:45

1 stop6h 45m

$301

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Thu 10/9

16:35-23:10

1 stop6h 35m

Porto

Sun 13/9

06:00-15:35

1 stop9h 35m

$310
Fastest return journey

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Tue 5/5

18:45-00:40

1 stop5h 55m

Porto

Fri 15/5

16:00-22:05

1 stop6h 05m

$311

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Fri 11/9

19:50-08:00

1 stop12h 10m

Porto

Mon 14/9

05:05-17:45

1 stop12h 40m

$321

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Wed 6/5

17:10-22:15

1 stop5h 05m

Porto

Sat 9/5

05:55-16:35

1 stop10h 40m

$326

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Sat 13/6

11:20-19:00

1 stop7h 40m

Porto

Sun 28/6

22:30-22:55

1 stop24h 25m

$335

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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 $277. 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 $303.

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 $250. 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 $515.

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 $216. Flights in the morning are often more expensive, with an average ticket price of $278.

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 $405 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 $294 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 6% cheaper 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

5h 25m

Direct flights

None
The fastest flight from London Heathrow Airport to Porto takes 5h 25m
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 5h 25m.

  • 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 $511Free cancellationRating
6.7
7,893 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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