How often are flights from Porto to London delayed?

About 5% of weekly flights between Porto and London have experienced delays in the past year, with the average delay time being 85 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 evening 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 Thursday 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 18h 40m. There are 806 mi between Porto and London Heathrow Airport.

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+ Flights from Porto to London Heathrow Airport

Q: 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 £136 and £240 in March. The cheapest return flight price found within the last 3 days was £104 on Vueling (2 Mar-9 Mar).

Cheap flight deals from Porto to Heathrow

Round-trip from	£104
One-way from	£45
Popular in	July
Cheapest in	March
Average price	£163

Vueling
2/3-9/3
2 total stops
39h 15m total
Porto to London

Search Deals

Vueling
24/2
1 total stop
18h 40m total
Porto to London

Search Deals

Highest demand for flights based on searches. 19% potential increase in price (£36 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 8% potential price decrease (£11 potential savings vs. average return price).

Search Deals

Average for round-trip flights in January 2026

Search Deals

Find flight deals from Porto to Heathrow

Enter your travel dates to find the best prices.

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 9 January 2026.

Mon 2/321:55OPO - LHR

1 stop11h 15mVueling

Mon 9/315:30LHR - OPO

1 stop28h 00mVueling

Deal found 7/1£104

Thu 5/320:05OPO - LHR

1 stop18h 40mVueling

Sat 14/320:50LHR - OPO

1 stop11h 20mVueling

Deal found 7/1£107

Thu 5/320:05OPO - LHR

1 stop18h 40mVueling

Mon 9/320:50LHR - OPO

1 stop11h 20mVueling

Deal found 8/1£112

Wed 4/208:45OPO - LHR

1 stop11h 20mVueling

Wed 11/220:50LHR - OPO

1 stop11h 20mVueling

Deal found 7/1£114

Sat 7/221:55OPO - LHR

1 stop11h 15mVueling

Mon 9/220:50LHR - OPO

1 stop11h 20mVueling

Deal found 8/1£118

Tue 3/221:55OPO - LHR

1 stop11h 15mVueling

Thu 5/220:50LHR - OPO

1 stop11h 20mVueling

Deal found 7/1£119

Wed 11/221:55OPO - LHR

1 stop11h 15mVueling

Mon 23/220:50LHR - OPO

1 stop11h 20mVueling

Deal found 8/1£120

Sat 17/108:20OPO - LHR

1 stop9h 55mIberia

Sun 18/109:15LHR - OPO

1 stop6h 45mIberia

Deal found 8/1£122

Sun 22/206:55OPO - LHR

1 stop5h 45mTAP AIR PORTUGAL

Sun 1/312:25LHR - OPO

1 stop9h 35mTAP AIR PORTUGAL

Deal found 8/1£123

Fri 16/115:55OPO - LHR

1 stop6h 45mTAP AIR PORTUGAL

Mon 19/106:00LHR - OPO

1 stop11h 00mTAP AIR PORTUGAL

Deal found 7/1£123

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 9 January 2026.

Thu 5/320:05OPO - LHR

1 stop18h 40mVueling

Sat 14/320:50LHR - OPO

1 stop11h 20mVueling

Deal found 7/1£107

Fri 6/312:00OPO - LHR

1 stop5h 30mTAP AIR PORTUGAL

Sun 8/312:25LHR - OPO

1 stop5h 40mTAP AIR PORTUGAL

Deal found 6/1£141

Tue 3/221:55OPO - LHR

1 stop11h 15mVueling

Tue 10/220:50LHR - OPO

1 stop11h 20mVueling

Deal found 6/1£120

Wed 4/214:00OPO - LHR

1 stop8h 40mTAP AIR PORTUGAL

Sat 7/206:00LHR - OPO

1 stop12h 00mTAP AIR PORTUGAL

Deal found 6/1£141

Thu 19/221:55OPO - LHR

1 stop11h 15mVueling

Mon 23/220:50LHR - OPO

1 stop11h 20mVueling

Deal found 7/1£130

Thu 29/107:00OPO - LHR

1 stop5h 40mTAP AIR PORTUGAL

Sat 31/118:30LHR - OPO

1 stop6h 00mTAP AIR PORTUGAL

Deal found 8/1£141

Thu 19/221:55OPO - LHR

1 stop11h 15mVueling

Sun 22/220:50LHR - OPO

1 stop11h 20mVueling

Deal found 7/1£140

Mon 2/206:55OPO - LHR

1 stop5h 45mTAP AIR PORTUGAL

Thu 5/216:30LHR - OPO

1 stop5h 30mTAP AIR PORTUGAL

Deal found 7/1£141

Tue 17/321:55OPO - LHR

1 stop11h 15mVueling

Fri 20/320:50LHR - OPO

1 stop11h 20mVueling

Deal found 7/1£140

Thu 5/210:20OPO - LHR

1 stop5h 10mTAP AIR PORTUGAL

Thu 12/216:30LHR - OPO

1 stop5h 30mTAP AIR PORTUGAL

Deal found 7/1£143

Sat 7/221:55OPO - LHR

1 stop11h 15mVueling

Mon 9/220:50LHR - OPO

1 stop11h 20mVueling

Deal found 6/1£141

Last-minute flights from Porto to Heathrow
Discover last-minute flight deals from Porto to Heathrow. Data last updated 9 January 2026 and is based on user searches.

Sat 17/108:20OPO - LHR

1 stop9h 55mIberia

Sun 18/109:15LHR - OPO

1 stop6h 45mIberia

Deal found 8/1£122

Wed 21/110:55OPO - LHR

1 stop6h 35mTAP AIR PORTUGAL

Sun 25/113:40LHR - OPO

1 stop5h 15mTAP AIR PORTUGAL

Deal found 6/1£123

Tue 3/221:55OPO - LHR

1 stop11h 15mVueling

Thu 5/220:50LHR - OPO

1 stop11h 20mVueling

Deal found 7/1£119

Tue 3/221:55OPO - LHR

1 stop11h 15mVueling

Tue 10/220:50LHR - OPO

1 stop11h 20mVueling

Deal found 6/1£120

Tue 3/221:55OPO - LHR

1 stop11h 15mVueling

Wed 4/220:50LHR - OPO

1 stop11h 20mVueling

Deal found 6/1£121

Tue 3/211:00OPO - LHR

1 stop6h 30mTAP AIR PORTUGAL

Tue 10/213:40LHR - OPO

1 stop5h 20mTAP AIR PORTUGAL

Deal found 6/1£123

Wed 4/208:45OPO - LHR

1 stop11h 20mVueling

Wed 11/220:50LHR - OPO

1 stop11h 20mVueling

Deal found 7/1£114

Wed 11/221:55OPO - LHR

1 stop11h 15mVueling

Mon 23/220:50LHR - OPO

1 stop11h 20mVueling

Deal found 8/1£118

Thu 26/220:05OPO - LHR

1 stop18h 40mVueling

Wed 4/315:30LHR - OPO

1 stop28h 00mVueling

Deal found 6/1£100

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 9 January 2026.

Tue 24/220:05OPO - LHR

1 stop18h 40mVueling

Deal found 7/1£45

Sat 7/208:20OPO - LHR

1 stop9h 55mIberia

Deal found 8/1£48

Wed 4/208:20OPO - LHR

1 stop8h 15mIberia

Deal found 8/1£48

Sat 17/108:20OPO - LHR

1 stop9h 55mIberia

Deal found 8/1£52

Fri 6/220:40OPO - LHR

1 stop19h 55mIberia

Deal found 8/1£54

Wed 11/216:05OPO - LHR

1 stop25h 10mMultiple Airlines

Deal found 7/1£55

Wed 4/221:55OPO - LHR

2 stops16h 50mVueling

Deal found 8/1£56

Wed 11/221:55OPO - LHR

1 stop11h 15mVueling

Deal found 8/1£57

Tue 10/321:55OPO - LHR

1 stop11h 15mVueling

Deal found 6/1£57

Wed 18/321:55OPO - LHR

1 stop22h 10mVueling

Deal found 7/1£59

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

PortoLondon

OPO - LHR

OPOLHR

Porto

Thu 5/3

20:05-14:45

1 stop18h 40m

London Heathrow

Sat 14/3

20:50-08:10

1 stop11h 20m

£107

PortoLondon

OPO - LHR

OPOLHR

Porto

Tue 3/2

21:55-09:10

1 stop11h 15m

London Heathrow

Tue 10/2

20:50-08:10

1 stop11h 20m

£120

PortoLondon

OPO - LHR

OPOLHR

Porto

Thu 19/2

21:55-09:10

1 stop11h 15m

London Heathrow

Mon 23/2

20:50-08:10

1 stop11h 20m

£130

PortoLondon

OPO - LHR

OPOLHR

Porto

Thu 19/2

21:55-09:10

1 stop11h 15m

London Heathrow

Sun 22/2

20:50-08:10

1 stop11h 20m

£140

PortoLondon

OPO - LHR

OPOLHR

Porto

Tue 17/3

21:55-09:10

1 stop11h 15m

London Heathrow

Fri 20/3

20:50-08:10

1 stop11h 20m

£140

PortoLondon

OPO - LHR

OPOLHR

Porto

Fri 6/3

12:00-17:30

1 stop5h 30m

London Heathrow

Sun 8/3

12:25-18:05

1 stop5h 40m

£141

PortoLondon

OPO - LHR

OPOLHR

Porto

Wed 4/2

14:00-22:40

1 stop8h 40m

London Heathrow

Sat 7/2

06:00-18:00

1 stop12h 00m

£141

PortoLondon

OPO - LHR

OPOLHR

Porto

Thu 29/1

07:00-12:40

1 stop5h 40m

London Heathrow

Sat 31/1

18:30-00:30

1 stop6h 00m

£141

PortoLondon

OPO - LHR

OPOLHR

Porto

Mon 2/2

06:55-12:40

1 stop5h 45m

London Heathrow

Thu 5/2

16:30-22:00

1 stop5h 30m

£141

PortoLondon

OPO - LHR

OPOLHR

Porto

Sat 7/2

21:55-09:10

1 stop11h 15m

London Heathrow

Mon 9/2

20:50-08:10

1 stop11h 20m

£141

Flights are sorted by cheapest return flights first.

Deals found on 7/1

Showing 1-10 of 21 results

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.

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, September is the cheapest month in which you can book a flight from Porto to London Heathrow Airport (average of £59). Flying from Porto to London Heathrow Airport in November is currently the most expensive (average of £175). 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?

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 18h 40m. There are 806 mi between Porto and London Heathrow Airport.
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, September is the cheapest month in which you can book a flight from Porto to London Heathrow Airport (average of £59). Flying from Porto to London Heathrow Airport in November is currently the most expensive (average of £175). 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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Yes! Cheapflights helps users easily find flights from Porto to Heathrow with no change fees.

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Not ready to book yet? You can track prices for flights from Porto to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from Porto to London Heathrow Airport from £45

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/2. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Porto to Heathrow

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Find 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 9 January 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 9 January 2026.

Cheapflights Fare Finder

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

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

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?

How often are flights from Porto to London delayed?

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

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

Related info for your journey

Find useful and relevant information for your journey from Porto to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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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Alternative routes for Porto to Heathrow

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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 9 January 2026.