What is the most punctual flight time for Porto to London flights?

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

How often are flights from Porto to London delayed?

About 2% of weekly flights between Porto and London have experienced delays in the past year, with the average delay time being 321 minutes.

How long is the flight from Porto to London Heathrow Airport?

Departing from Porto to London Heathrow Airport will take you 6h 55m. There are 806 mi between Porto and London Heathrow Airport. This flight may include one or multiple stops.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What is the cheapest time of day to fly from OPO to LHR?

When flying from Porto to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly from for flights from Porto to London Heathrow?

Porto (OPO), located 6.8 mi from the city center, is the airport you fly out of when you book flights from Porto to London Heathrow. 0 airlines have flights from Porto to London Heathrow on a regular basis. Booking flights from Porto to London Heathrow should not be difficult; the airport handles an average of 0 outbound flights to London Heathrow per day.

Can I find deals for flights from Porto to Heathrow that include hotel bookings?

Yes. In addition to deals on Porto to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Porto to Heathrow?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Porto to Heathrow.

Can I find deals for business class flights from Porto to Heathrow?

Yes. Cheapflights offers flight deals from Porto to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£46+ Cheap Flights from Porto to London Heathrow Airport

Cheap flight deals from Porto to Heathrow

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Cheapest flights from Porto to Heathrow
Explore the most affordable flight options available from Porto to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2026.

Thu 5/1120:55 -

1 stop17h 50m

Wed 11/1118:50 -

1 stop25h 30m

Deal found 11/9£104

Sat 7/1121:55 -

1 stop11h 15m

Sat 14/1109:55 -

1 stop11h 20m

Deal found 15/9£108

Thu 22/1020:40 -

1 stop18h 05m

Wed 28/1018:50 -

1 stop25h 30m

Deal found 11/9£110

Fri 23/1022:00 -

1 stop11h 10m

Sat 31/1020:50 -

1 stop11h 20m

Deal found 16/9£122

Sat 7/1121:55 -

1 stop11h 15m

Sun 8/1120:50 -

1 stop11h 20m

Deal found 15/9£123

Find flight deals from Porto to Heathrow

Round-trip from	£104
One-way from	£46
Popular in	July
Cheapest in	February
Average price	£184

5/11-11/11
2 total stops
43h 20m total
Porto to London

Search Deals

Vueling
12/12-31/12
1 total stop
18h 40m total
Porto to London

Search Deals

Highest demand for flights based on searches. 14% potential increase in price (£24 potential increase over avg. return price).

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Cheapest flight prices on average. 4% potential price decrease (£7 potential savings vs. average return price).

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Average for round-trip flights in September 2026

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Porto to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Wed 14/10

22:00-09:10

1 stop11h 10m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£70

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Tue 13/10

22:00-09:10

1 stop11h 10m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£79

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Sat 3/10

21:15-10:20

1 stop13h 05m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£100

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Fri 6/11

12:00-18:55

1 stop6h 55m

London Heathrow

Sun 8/11

06:00-17:00

1 stop11h 00m

£153

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Wed 18/11

08:30-17:30

1 stop9h 00m

London Heathrow

Fri 20/11

13:40-19:00

1 stop5h 20m

£171

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Sat 28/11

05:00-14:25

1 stop9h 25m

London Heathrow

Tue 1/12

08:40-15:25

1 stop6h 45m

£185

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Sat 28/11

12:05-21:25

2 stops9h 20m

London Heathrow

Tue 1/12

06:00-11:15

1 stop5h 15m

£231

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Tue 29/9

08:40-16:25

1 stop7h 45m

London Heathrow

Tue 29/9

19:15-11:25

2 stops16h 10m

£240

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Sat 17/10

11:00-22:55

1 stop11h 55m

London Heathrow

Tue 20/10

06:00-17:00

1 stop11h 00m

£251

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Wed 14/10

05:00-18:50

3 stops13h 50m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£284

Flights are sorted by cheapest return flights first.

Deals found on 11/9

Showing 1-10 of 21 resultsSorted by cheapest first

Best time to book a flight from Porto to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Porto with our price prediction graph.

OPO-LHR

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Porto to London Heathrow Airport

Prices

Delays

What is the cheapest month to book a flight from Porto to London Heathrow Airport?

Currently, February is the cheapest month in which you can book a flight from Porto to London Heathrow Airport (average of £96). Flying from Porto to London Heathrow Airport in July is currently the most expensive (average of £294). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Porto to London Heathrow Airport?

Airfare is below average for this route at the moment.

Porto to London Heathrow Airport flights typically cost between £135 and £257 in November.
The cheapest return price found within the last 5 days was £104 on Multiple Airlines (5 Nov–11 Nov).

Related info for your journey

What airport do you fly from for flights from Porto to London Heathrow?
Porto (OPO), located 6.8 mi from the city center, is the airport you fly out of when you book flights from Porto to London Heathrow. 0 airlines have flights from Porto to London Heathrow on a regular basis. Booking flights from Porto to London Heathrow should not be difficult; the airport handles an average of 0 outbound flights to London Heathrow per day.
How long is the flight from Porto to London Heathrow Airport?
Departing from Porto to London Heathrow Airport will take you 6h 55m. There are 806 mi between Porto and London Heathrow Airport. This flight may include one or multiple stops.
Can I find deals for flights from Porto to Heathrow that include hotel bookings?
Yes. In addition to deals on Porto to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Porto to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Porto to Heathrow.
Can I find deals for business class flights from Porto to Heathrow?
Yes. Cheapflights offers flight deals from Porto to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Porto to London Heathrow Airport?
Currently, February is the cheapest month in which you can book a flight from Porto to London Heathrow Airport (average of £96). Flying from Porto to London Heathrow Airport in July is currently the most expensive (average of £294). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Cheapflights helps you find that perfect flight to Heathrow from Porto by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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Cheap flights from Porto to London Heathrow Airport from £46

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Porto to Heathrow

Cheapest flights from Porto to HeathrowExplore the most affordable flight options available from Porto to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2026.

Explore the most affordable flight options available from Porto to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2026.

Best flights from Porto to HeathrowDiscover carefully curated flight deals from Porto to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 16 September 2026.

Discover carefully curated flight deals from Porto to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 16 September 2026.

Last-minute flights from Porto to HeathrowDiscover last-minute flight deals from Porto to Heathrow. Data last updated 16 September 2026 and is based on user searches.

Discover last-minute flight deals from Porto to Heathrow. Data last updated 16 September 2026 and is based on user searches.

One-way flights from Porto to HeathrowSearch for one-way flight options from Porto to Heathrow. Find affordable one-way fares based on user searches. Data last updated 16 September 2026.

Search for one-way flight options from Porto to Heathrow. Find affordable one-way fares based on user searches. Data last updated 16 September 2026.

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Use the filters below to find and compare flights from Porto to London Heathrow Airport that are best for you.

Best time to book a flight from Porto to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Porto with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Porto to London Heathrow Airport?

How much does it cost for a return flight from Porto to London Heathrow Airport?

Airfare is below average for this route at the moment.

Porto to London Heathrow Airport flights typically cost between £135 and £257 in November.The cheapest return price found within the last 5 days was £104 on Multiple Airlines (5 Nov–11 Nov).

How often are flights from Porto to London delayed?

About 2% of weekly flights between Porto and London have experienced delays in the past year, with the average delay time being 321 minutes.

What is the most punctual flight time for Porto to London flights?

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Related info for your journey

What airport do you fly from for flights from Porto to London Heathrow?

How long is the flight from Porto to London Heathrow Airport?

Can I find deals for flights from Porto to Heathrow that include hotel bookings?

How can I find direct flights from Porto to Heathrow?

Can I find deals for business class flights from Porto to Heathrow?

What is the cheapest month to book a flight from Porto to London Heathrow Airport?

Travelling to a place near London Heathrow Airport?

Browse thousands of different options on Cheapflights for your next trip

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How does Cheapflights help users find flights from Porto to Heathrow?

Why should you use Cheapflights to find cheap flight tickets from Porto to Heathrow?

Can Cheapflights find flights from Porto to Heathrow with no change fees?

Can Cheapflights notify me if prices for flights from Porto to Heathrow become cheaper?

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Cheapest flights from Porto to Heathrow
Explore the most affordable flight options available from Porto to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2026.

Best flights from Porto to Heathrow
Discover carefully curated flight deals from Porto to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 16 September 2026.

Last-minute flights from Porto to Heathrow
Discover last-minute flight deals from Porto to Heathrow. Data last updated 16 September 2026 and is based on user searches.

One-way flights from Porto to Heathrow
Search for one-way flight options from Porto to Heathrow. Find affordable one-way fares based on user searches. Data last updated 16 September 2026.

Porto to London Heathrow Airport flights typically cost between £135 and £257 in November.
The cheapest return price found within the last 5 days was £104 on Multiple Airlines (5 Nov–11 Nov).