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.

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 long is the flight from Porto to London Heathrow Airport?

KLM, TAP AIR PORTUGAL, and Scandinavian Airlines can get you from Porto to London Heathrow Airport in just under 4h 50m. Your travel time can differ by up to 2h 10m. The distance between Porto and London Heathrow Airport is about 1297 km. This flight may include one or multiple stops.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 mm 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?

Located just 10.9 km from the city centre, Porto is the airport most travellers will use when flying to London Heathrow from Porto. Booking flights from Porto (OPO) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 0 different airlines.

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 vacation 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.

C$ 91+ Cheap Flights from Porto to London Heathrow Airport

Cheap flight deals from Porto to Heathrow

Enter your travel dates to find the best prices.

Cheapest

Best

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One-way

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 31 October 2026.

Fri 13/114:15 p.m. -

1 stop6h 05m

Thu 19/116:35 a.m. -

1 stop6h 40m

Deal found 28/10C$ 270

Thu 3/1211:15 a.m. -

1 stop4h 50m

Sun 6/126:30 a.m. -

1 stop8h 55m

Deal found 30/10C$ 275

Wed 23/124:10 p.m. -

1 stop4h 40m

Mon 4/12:45 p.m. -

1 stop7h 10m

Deal found 28/10C$ 278

Tue 1/1212:05 p.m. -

1 stop7h 10m

Sat 5/125:50 p.m. -

1 stop5h 50m

Deal found 28/10C$ 279

Sat 21/116:10 a.m. -

1 stop6h 50m

Tue 24/116:00 a.m. -

1 stop5h 15m

Deal found 26/10C$ 282

Sat 5/124:10 p.m. -

1 stop4h 40m

Wed 9/122:45 p.m. -

1 stop7h 15m

Deal found 29/10C$ 292

Thu 10/1211:15 a.m. -

1 stop8h 00m

Mon 14/125:05 p.m. -

1 stop5h 25m

Deal found 27/10C$ 295

Tue 22/1211:15 a.m. -

1 stop5h 45m

Fri 25/126:30 a.m. -

1 stop8h 55m

Deal found 28/10C$ 299

Sun 6/125:00 a.m. -

1 stop7h 05m

Fri 25/126:30 a.m. -

1 stop8h 55m

Deal found 26/10C$ 300

Find flight deals from Porto to Heathrow

Round-trip from	C$ 270
One-way from	C$ 91
Popular in	July
Cheapest in	January
Average price	C$ 366

Lufthansa
13/11-19/11
2 total stops
12h 45m total
Porto to London

Search Deals

20/12-31/12
1 total stop
21h 05m total
Porto to London

Search Deals

Highest demand for flights based on searches. 14% potential increase in price (C$ 85 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (C$ 24 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 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 round-trip

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Thu 24/12

5:00 a.m.-10:45 a.m.

1 stop5h 45m

London Heathrow

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 126

Quickest round-trip

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Wed 23/12

4:10 p.m.-8:50 p.m.

1 stop4h 40m

London Heathrow

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 126

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Wed 3/2

12:00 p.m.-5:30 p.m.

1 stop5h 30m

London Heathrow

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 147

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Thu 7/1

8:40 p.m.-7:10 p.m.

1 stop22h 30m

London Heathrow

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 152

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Sat 20/2

8:45 a.m.-2:25 p.m.

1 stop5h 40m

London Heathrow

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 172

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Thu 4/2

5:00 a.m.-11:25 a.m.

1 stop6h 25m

London Heathrow

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 182

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Thu 26/11

4:00 p.m.-10:40 p.m.

1 stop6h 40m

London Heathrow

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 229

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Tue 5/1

8:40 p.m.-9:15 a.m.

1 stop12h 35m

London Heathrow

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 271

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Mon 25/1

5:00 a.m.-10:45 a.m.

1 stop5h 45m

London Heathrow

Sat 30/1

3:00 p.m.-10:00 p.m.

1 stop7h 00m

C$ 278

PortoLondon

OPO Porto - LHR London Heathrow

OPOLHR

Porto

Wed 27/1

2:10 p.m.-9:40 p.m.

2 stops7h 30m

London Heathrow

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 304

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/10

Showing 1-10 of 23 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 round-trip 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 C$ 261). Flying from Porto to London Heathrow Airport in July is currently the most expensive (average of C$ 554). 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 to fly round-trip 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 C$ 339 and C$ 466 in November.
The cheapest round-trip price found within the last 5 days was C$ 270 on Lufthansa (13 Nov-19 Nov).

Related info for your journey

What airport do you fly from for flights from Porto to London Heathrow?
Located just 10.9 km from the city centre, Porto is the airport most travellers will use when flying to London Heathrow from Porto. Booking flights from Porto (OPO) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 0 different airlines.
How long is the flight from Porto to London Heathrow Airport?
KLM, TAP AIR PORTUGAL, and Scandinavian Airlines can get you from Porto to London Heathrow Airport in just under 4h 50m. Your travel time can differ by up to 2h 10m. The distance between Porto and London Heathrow Airport is about 1297 km. 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 vacation 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 C$ 261). Flying from Porto to London Heathrow Airport in July is currently the most expensive (average of C$ 554). 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.

See more FAQs

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Users can book flights with no change fees policies with our dedicated filters. Book flights from Porto to Heathrow flexibly with Cheapflights today.

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Cheap flights from Porto to London Heathrow Airport from C$ 91

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/12. 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 31 October 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 31 October 2026.

Best flights from Porto to HeathrowDiscover carefully curated flight deals from Porto to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 31 October 2026.

Discover carefully curated flight deals from Porto to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 31 October 2026.

Last-minute flights from Porto to HeathrowDiscover last-minute flight deals from Porto to Heathrow. Data last updated 31 October 2026 and is based on user searches.

Discover last-minute flight deals from Porto to Heathrow. Data last updated 31 October 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 31 October 2026.

Search for one-way flight options from Porto to Heathrow. Find affordable one-way fares based on user searches. Data last updated 31 October 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 to fly round-trip 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 C$ 339 and C$ 466 in November.The cheapest round-trip price found within the last 5 days was C$ 270 on Lufthansa (13 Nov-19 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?

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How does Cheapflights help users find flights 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 31 October 2026.

Best flights from Porto to Heathrow
Discover carefully curated flight deals from Porto to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 31 October 2026.

Last-minute flights from Porto to Heathrow
Discover last-minute flight deals from Porto to Heathrow. Data last updated 31 October 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 31 October 2026.

Porto to London Heathrow Airport flights typically cost between C$ 339 and C$ 466 in November.
The cheapest round-trip price found within the last 5 days was C$ 270 on Lufthansa (13 Nov-19 Nov).