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.

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 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 long is the flight from Porto to London Heathrow Airport?

Departing from Porto to London Heathrow Airport will take you 7h 20m. 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.

£45+ Cheap Flights from Porto to London Heathrow Airport

Cheap flight deals from Porto to Heathrow

Enter your travel dates to find the best prices.

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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 14 November 2026.

Tue 15/1206:00 -

1 stop14h 05m

Thu 31/1220:50 -

1 stop10h 10m

Deal found 10/11£113

Mon 21/1220:40 -

1 stop12h 35m

Thu 31/1218:45 -

1 stop12h 55m

Deal found 13/11£125

Thu 24/1212:25 -

1 stop4h 50m

Thu 31/1218:45 -

1 stop12h 55m

Deal found 14/11£129

Tue 15/1221:55 -

1 stop11h 15m

Thu 31/1220:50 -

1 stop11h 20m

Deal found 11/11£130

Thu 24/1212:25 -

1 stop5h 50m

Thu 31/1220:50 -

1 stop10h 10m

Deal found 10/11£131

Sat 5/1222:05 -

1 stop11h 05m

Sun 6/1215:15 -

1 stop8h 20m

Deal found 9/11£138

Thu 3/1214:05 -

1 stop6h 55m

Wed 9/1206:35 -

1 stop6h 15m

Deal found 14/11£142

Tue 24/1118:00 -

1 stop18h 40m

Fri 27/1108:15 -

1 stop9h 45m

Deal found 9/11£143

Find flight deals from Porto to Heathrow

Round-trip from	£110
One-way from	£45
Popular in	July
Cheapest in	January
Average price	£208

Vueling
2/3-9/3
2 total stops
10h 55m total
Porto to London

Search Deals

15/12-31/12
1 total stop
7h 55m total
Porto to London

Search Deals

Highest demand for flights based on searches. 18% potential increase in price (£35 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£7 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 2026

Search Deals

Cheapflights Fare Finder

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

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Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Sat 5/12

14:30-22:40

1 stop8h 10m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£94

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Sat 28/11

18:00-11:25

1 stop17h 25m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£98

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Mon 7/12

09:10-17:50

2 stops8h 40m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£164

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Thu 4/2

11:00-18:55

1 stop7h 55m

London Heathrow

Wed 10/2

08:15-17:00

1 stop8h 45m

£180

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Sun 7/2

08:30-21:35

1 stop13h 05m

London Heathrow

Wed 10/2

06:00-22:00

1 stop16h 00m

£190

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Fri 5/2

08:30-18:55

1 stop10h 25m

London Heathrow

Tue 9/2

06:00-13:30

1 stop7h 30m

£196

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Fri 27/11

20:40-08:25

1 stop11h 45m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£203

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Fri 15/1

16:00-22:40

1 stop6h 40m

London Heathrow

Sun 17/1

08:15-16:35

1 stop8h 20m

£203

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Wed 31/3

05:00-18:50

3 stops13h 50m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£256

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Thu 3/12

14:20-21:40

2 stops7h 20m

London Heathrow

Fri 11/12

06:00-11:15

1 stop5h 15m

£266

Flights are sorted by cheapest return flights first.

Deals found on 9/11

Showing 1-10 of 22 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, January is the cheapest month in which you can book a flight from Porto to London Heathrow Airport (average of £141). Flying from Porto to London Heathrow Airport in July is currently the most expensive (average of £300). 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 £177 and £253 in March.
The cheapest return price found within the last 5 days was £110 on Vueling (2 Mar–9 Mar).

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 7h 20m. 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, January is the cheapest month in which you can book a flight from Porto to London Heathrow Airport (average of £141). Flying from Porto to London Heathrow Airport in July is currently the most expensive (average of £300). 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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Cheap flights from Porto to London Heathrow Airport from £45

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/12. 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 14 November 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 14 November 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 14 November 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 14 November 2026.

Last-minute flights from Porto to HeathrowDiscover last-minute flight deals from Porto to Heathrow. Data last updated 14 November 2026 and is based on user searches.

Discover last-minute flight deals from Porto to Heathrow. Data last updated 14 November 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 14 November 2026.

Search for one-way flight options from Porto to Heathrow. Find affordable one-way fares based on user searches. Data last updated 14 November 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 £177 and £253 in March.The cheapest return price found within the last 5 days was £110 on Vueling (2 Mar–9 Mar).

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?

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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 14 November 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 14 November 2026.

Last-minute flights from Porto to Heathrow
Discover last-minute flight deals from Porto to Heathrow. Data last updated 14 November 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 14 November 2026.

Porto to London Heathrow Airport flights typically cost between £177 and £253 in March.
The cheapest return price found within the last 5 days was £110 on Vueling (2 Mar–9 Mar).