What are the cheapest airlines flying from Porto to London Heathrow Airport round-trip?

Currently priced at $209, KLM will fly you from Porto to London Heathrow Airport and back. In addition to KLM, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Vueling and TAP AIR PORTUGAL - these airlines can fly you to your destination from $211 and $223, respectively. KLM is priced at 11% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from Porto to London Heathrow Airport one-way?

The cheapest airline one-way is Vueling, with whom users have recently found tickets for as low as $58. However, be on the lookout for offers from Iberia and SWISS, as they are both options that can get you from Porto to London Heathrow Airport for a low price.

What is the cheapest day to fly from Porto to London Heathrow Airport?

Travelers seeking maximum savings on their Porto to London Heathrow Airport flight should consider departing on Tuesday mornings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from Porto to London Heathrow Airport?

Travelers have found that booking a Monday departure is the best way to save up to 101% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

How far in advance should I book a flight from Porto to London Heathrow Airport?

Find a great deal and save up to 27% by booking at least 30 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Porto to London Heathrow Airport within the next two weeks, with the cheapest ticket starting at $126.

What is the cheapest month to fly from Porto to London Heathrow Airport?

February is one of the best times of the year to fly to London Heathrow Airport from Porto. Prices for February average $142 per person but you can even find prices for as low as $34. The most expensive prices can be found in the month of July. Opting for a February flight can save you 34% on your journey compared to booking in July

Most accurate provider : When it comes to deals on Porto-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Porto-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Porto-London Heathrow Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Porto-London Heathrow Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Porto-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Porto (OPO) is the airport you will fly out of if you book a flight from Porto to London Heathrow. You should not have trouble finding flights to London Heathrow from Porto; the airport handles an average of 0 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 1 airline has flights from the Porto airport to London Heathrow. It is only a 6.8 mi journey to Porto (OPO) from Porto’s city center.

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.

$58+ Flights from Porto to London Heathrow Airport

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Find cheap flights from Porto to Heathrow with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

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Cheapflights Tip: The best prices from Porto to London Heathrow are usually found in November or February, booked 4 days in advance, depart on a Monday or Tuesday and return on a Sunday

Cheap flight deals from Porto to Heathrow

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$201 (Gotogate)
One-way from	$58 (Mytrip)
Popular in	August
Cheapest in	November
Average price	$206

Provider with most accurate pricing for Porto-London Heathrow flight deals.

Search Deals

Provider most trusted by Cheapflights users for Porto-London Heathrow flights.

Search Deals

From Porto to London Heathrow

Search Deals

One-way flight from Porto to London Heathrow

Search Deals

Highest demand for flights based on searches. 14% potential increase in price ($41 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 2025

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Find flight deals from Porto to Heathrow

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 March 21, 2025.

Tue 5/610:00 pmOPO - LHR

1 stop11h 10mMultiple Airlines

Tue 5/208:00 amLHR - OPO

1 stop9h 00mMultiple Airlines

Deal found 3/20

$201

Thu 5/88:20 pmOPO - LHR

1 stop11h 20mKLM

Mon 5/128:40 amLHR - OPO

1 stop8h 05mKLM

Deal found 3/21

$209

Thu 5/810:00 pmOPO - LHR

1 stop11h 10mVueling

Mon 5/128:50 pmLHR - OPO

1 stop11h 10mVueling

Deal found 3/20

$211

Fri 3/218:05 pmOPO - LHR

1 stop15h 20mTAP AIR PORTUGAL

Tue 3/256:00 amLHR - OPO

1 stop7h 05mTAP AIR PORTUGAL

Deal found 3/21

$223

Tue 5/2012:15 pmOPO - LHR

1 stop7h 05mSWISS

Sat 5/316:00 amLHR - OPO

1 stop12h 30mSWISS

Deal found 3/21

$226

Tue 4/294:35 pmOPO - LHR

1 stop5h 35mLufthansa

Tue 5/64:25 pmLHR - OPO

1 stop6h 55mLufthansa

Deal found 3/21

$234

Tue 5/204:50 pmOPO - LHR

1 stop4h 45mBrussels Airlines

Thu 5/295:50 pmLHR - OPO

1 stop22h 10mBrussels Airlines

Deal found 3/21

$252

Tue 3/259:55 pmOPO - LHR

1 stop11h 15mIberia

Fri 3/288:50 pmLHR - OPO

1 stop11h 10mIberia

Deal found 3/20

$290

Thu 5/88:45 amOPO - LHR

1 stop9h 20mEurowings

Mon 5/122:45 pmLHR - OPO

1 stop5h 55mEurowings

Deal found 3/21

$321

Mon 5/510:25 amOPO - LHR

1 stop21h 55mAustrian Airlines

Mon 5/129:05 amLHR - OPO

1 stop28h 10mAustrian Airlines

Deal found 3/21

$410

Fri 5/165:55 pmOPO - LHR

1 stop15h 25mScandinavian Airlines

Sun 5/187:30 pmLHR - OPO

1 stop15h 40mScandinavian Airlines

Deal found 3/21

$459

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 March 21, 2025.

Tue 5/610:00 pmOPO - LHR

1 stop11h 10mMultiple Airlines

Tue 5/208:00 amLHR - OPO

1 stop9h 00mMultiple Airlines

Deal found 3/20

$201

Thu 5/88:20 pmOPO - LHR

1 stop11h 20mKLM

Mon 5/128:40 amLHR - OPO

1 stop8h 05mKLM

Deal found 3/21

$209

Thu 5/810:00 pmOPO - LHR

1 stop11h 10mVueling

Mon 5/128:50 pmLHR - OPO

1 stop11h 10mVueling

Deal found 3/20

$211

Tue 6/1011:00 amOPO - LHR

1 stop7h 50mTAP AIR PORTUGAL

Tue 6/178:00 amLHR - OPO

1 stop11h 00mTAP AIR PORTUGAL

Deal found 3/20

$223

Tue 5/2012:15 pmOPO - LHR

1 stop7h 05mSWISS

Fri 5/301:45 pmLHR - OPO

1 stop18h 10mSWISS

Deal found 3/21

$226

Tue 4/294:35 pmOPO - LHR

1 stop5h 35mLufthansa

Tue 5/64:25 pmLHR - OPO

1 stop6h 55mLufthansa

Deal found 3/21

$234

Tue 5/204:50 pmOPO - LHR

1 stop4h 45mBrussels Airlines

Thu 5/295:50 pmLHR - OPO

1 stop22h 10mBrussels Airlines

Deal found 3/21

$252

Thu 5/88:45 amOPO - LHR

1 stop9h 20mEurowings

Mon 5/122:45 pmLHR - OPO

1 stop5h 55mEurowings

Deal found 3/21

$321

Sat 4/512:20 pmOPO - LHR

1 stop6h 50mIberia

Sat 4/128:50 pmLHR - OPO

1 stop11h 10mIberia

Deal found 3/20

$352

Mon 5/510:25 amOPO - LHR

1 stop21h 55mAustrian Airlines

Mon 5/129:05 amLHR - OPO

1 stop28h 10mAustrian Airlines

Deal found 3/21

$410

Fri 5/165:55 pmOPO - LHR

1 stop15h 25mScandinavian Airlines

Sun 5/187:30 pmLHR - OPO

1 stop15h 40mScandinavian Airlines

Deal found 3/21

$459

Last-minute flights from Porto to Heathrow
Discover last-minute flight deals from Porto to Heathrow. Data last updated March 21, 2025 and is based on user searches.

Fri 3/218:05 pmOPO - LHR

1 stop15h 20mTAP AIR PORTUGAL

Tue 3/256:00 amLHR - OPO

1 stop7h 05mTAP AIR PORTUGAL

Deal found 3/21

$223

Tue 3/259:55 pmOPO - LHR

1 stop11h 15mIberia

Fri 3/288:50 pmLHR - OPO

1 stop11h 10mIberia

Deal found 3/20

$290

Wed 3/267:20 pmOPO - LHR

1 stop12h 45mSWISS

Wed 4/25:10 pmLHR - OPO

1 stop14h 35mSWISS

Deal found 3/20

$298

Wed 3/261:45 pmOPO - LHR

1 stop7h 15mLufthansa

Sun 3/309:00 amLHR - OPO

2 stops13h 45mLufthansa

Deal found 3/20

$440

Thu 3/2711:15 amOPO - LHR

1 stop10h 20mTAP AIR PORTUGAL

Sun 3/306:00 amLHR - OPO

1 stop17h 15mTAP AIR PORTUGAL

Deal found 3/21

$270

Sat 3/296:00 amOPO - LHR

1 stop6h 05mKLM

Tue 4/18:40 amLHR - OPO

1 stop6h 55mKLM

Deal found 3/19

$264

Wed 4/28:40 amOPO - LHR

1 stop9h 10mSWISS

Wed 4/98:05 pmLHR - OPO

1 stop11h 40mSWISS

Deal found 3/20

$249

Wed 4/28:15 amOPO - LHR

1 stop6h 40mBritish Airways

Sun 4/68:00 pmLHR - OPO

1 stop11h 35mBritish Airways

Deal found 3/20

$906

Fri 4/412:55 pmOPO - LHR

1 stop8h 00mBrussels Airlines

Sat 4/511:05 amLHR - OPO

1 stop25h 00mBrussels Airlines

Deal found 3/20

$334

Sat 4/2612:35 amOPO - LHR

1 stop10h 40mAegean Airlines

Tue 4/2912:15 pmLHR - OPO

1 stop10h 25mAegean Airlines

Deal found 3/21

$1,177

Tue 4/294:35 pmOPO - LHR

1 stop5h 35mLufthansa

Tue 5/64:25 pmLHR - OPO

1 stop6h 55mLufthansa

Deal found 3/21

$234

Tue 4/294:35 pmOPO - LHR

1 stop5h 35mMultiple Airlines

Wed 5/711:05 amLHR - OPO

1 stop5h 20mMultiple Airlines

Deal found 3/21

$241

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 March 21, 2025.

Tue 5/610:00 pmOPO - LHR

1 stop11h 10mVueling

Deal found 3/21

$58

Tue 8/56:35 amOPO - LHR

1 stop15h 50mMultiple Airlines

Deal found 3/20

$74

Fri 7/184:55 pmOPO - LHR

1 stop5h 45mIberia

Deal found 3/21

$87

Wed 6/48:40 amOPO - LHR

1 stop9h 10mSWISS

Deal found 3/21

$90

Wed 6/189:15 pmOPO - LHR

1 stop10h 25mKLM

Deal found 3/20

$99

Fri 5/164:00 pmOPO - LHR

1 stop6h 55mTAP AIR PORTUGAL

Deal found 3/20

$101

Sun 4/2012:55 pmOPO - LHR

1 stop8h 00mBrussels Airlines

Deal found 3/20

$183

Sun 8/319:50 amOPO - LHR

1 stop9h 00mEurowings

Deal found 3/20

$201

Fri 5/26:00 amOPO - LHR

2 stops16h 40mLufthansa

Deal found 3/20

$219

Sun 6/155:35 pmOPO - LHR

1 stop18h 55mAir Serbia

Deal found 3/20

$223

Sun 8/3111:55 amOPO - LHR

2 stops21h 25mLOT

Deal found 3/19

$452

Sat 5/312:35 amOPO - LHR

1 stop10h 40mAegean Airlines

Deal found 3/20

$472

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

Tue 5/6

10:00 pm-9:10 am

1 stop11h 10m

London Heathrow

Tue 5/20

8:00 am-5:00 pm

1 stop9h 00m

$201

PortoLondon

OPO - LHR

OPOLHR

Porto

Thu 5/8

8:20 pm-7:40 am

1 stop11h 20m

London Heathrow

Mon 5/12

8:40 am-4:45 pm

1 stop8h 05m

$209

PortoLondon

OPO - LHR

OPOLHR

Porto

Thu 5/8

10:00 pm-9:10 am

1 stop11h 10m

London Heathrow

Mon 5/12

8:50 pm-8:00 am

1 stop11h 10m

$211

PortoLondon

OPO - LHR

OPOLHR

Porto

Tue 6/10

11:00 am-6:50 pm

1 stop7h 50m

London Heathrow

Tue 6/17

8:00 am-7:00 pm

1 stop11h 00m

$223

PortoLondon

OPO - LHR

OPOLHR

Porto

Tue 5/20

12:15 pm-7:20 pm

1 stop7h 05m

London Heathrow

Sat 5/31

6:00 am-6:30 pm

1 stop12h 30m

$226

PortoLondon

OPO - LHR

OPOLHR

Porto

Tue 4/29

4:35 pm-10:10 pm

1 stop5h 35m

London Heathrow

Tue 5/6

4:25 pm-11:20 pm

1 stop6h 55m

$234

PortoLondon

OPO - LHR

OPOLHR

Porto

Tue 5/20

4:50 pm-9:35 pm

1 stop4h 45m

London Heathrow

Thu 5/29

5:50 pm-4:00 pm

1 stop22h 10m

$252

PortoLondon

OPO - LHR

OPOLHR

Porto

Thu 5/8

8:45 am-6:05 pm

1 stop9h 20m

London Heathrow

Mon 5/12

2:45 pm-8:40 pm

1 stop5h 55m

$321

PortoLondon

OPO - LHR

OPOLHR

Porto

Sat 4/5

12:20 pm-7:10 pm

1 stop6h 50m

London Heathrow

Sat 4/12

8:50 pm-8:00 am

1 stop11h 10m

$352

PortoLondon

OPO - LHR

OPOLHR

Porto

Mon 5/5

10:25 am-8:20 am

1 stop21h 55m

London Heathrow

Mon 5/12

9:05 am-1:15 pm

1 stop28h 10m

$410

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/21

Showing 1-10 of 23 results

Compare providers for flights from Porto to Heathrow

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Porto to Heathrow in March.

Provider	Price Accuracy	Trust Score*
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Porto-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Porto-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Porto-London Heathrow Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Porto-London Heathrow Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Porto-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 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

How far ahead should I book a flight from Porto to London Heathrow Airport?

Booking 4 days in advance of your planned departure date is, on average, the best time to get cheap flights from Porto to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, November is the cheapest month in which you can book a flight from Porto to London Heathrow Airport (average of $661). Flying from Porto to London Heathrow Airport in June is currently the most expensive (average of $1,122). 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.

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

One of the essential ways to save on airfare from Porto to London Heathrow Airport is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 31% on airfare.

Rainfall in Heathrow by month

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Heathrow

To help decide which airline to fly from Porto to London, see what other customers have to say about Aegean Airlines, KLM and LOT. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Aegean Airlines

8.1

Very good

726 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

Aegean Airlines

8.1

Very good

726 reviews

Aegean Airlines

8.1

Very good

726 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

KLM

7.8

Good

1,319 reviews

Aegean Airlines

8.1

Very good

726 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

LOT

7.6

Good

1,061 reviews

Aegean Airlines

8.1

Very good

726 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

Austrian Airlines

7.6

Good

768 reviews

Aegean Airlines

8.1

Very good

726 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

SWISS

7.5

Good

1,567 reviews

Aegean Airlines

8.1

Very good

726 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

Related info for your journey

What airport do you fly from for flights from Porto to London Heathrow?
Porto (OPO) is the airport you will fly out of if you book a flight from Porto to London Heathrow. You should not have trouble finding flights to London Heathrow from Porto; the airport handles an average of 0 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 1 airline has flights from the Porto airport to London Heathrow. It is only a 6.8 mi journey to Porto (OPO) from Porto’s city center.
What are the cheapest airlines flying from Porto to London Heathrow Airport round-trip?
Currently priced at $209, KLM will fly you from Porto to London Heathrow Airport and back. In addition to KLM, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Vueling and TAP AIR PORTUGAL - these airlines can fly you to your destination from $211 and $223, respectively. KLM is priced at 11% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from Porto to London Heathrow Airport one-way?
The cheapest airline one-way is Vueling, with whom users have recently found tickets for as low as $58. However, be on the lookout for offers from Iberia and SWISS, as they are both options that can get you from Porto to London Heathrow Airport for a low price.
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, November is the cheapest month in which you can book a flight from Porto to London Heathrow Airport (average of $661). Flying from Porto to London Heathrow Airport in June is currently the most expensive (average of $1,122). 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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Top airline flying from Porto to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
TAP AIR PORTUGAL	Cheapest$181	Average$283	FlexibilityNo cancel fee	On-timeN/A

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$58+ Cheap flights from Porto (OPO) to Heathrow (LHR)

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Porto to Heathrow with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Porto to London Heathrow are usually found in November or February, booked 4 days in advance, depart on a Monday or Tuesday and return on a Sunday

Cheap flight deals from Porto to Heathrow

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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 March 21, 2025.

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 March 21, 2025.

Cheapflights Fare Finder

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

Compare providers for flights from Porto to Heathrow

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Porto to Heathrow in March.

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.

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

How far ahead should I book a flight from Porto to London Heathrow Airport?

Use this chart to determine the optimal time to book a round-trip flight from Porto to Heathrow. Price data was last updated on March 14, 2025.

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

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

Find hourly flight availability from Porto to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 21, 2025.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

Reviews of airlines servicing Heathrow

To help decide which airline to fly from Porto to London, see what other customers have to say about Aegean Airlines, KLM and LOT. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

What are the cheapest airlines flying from Porto to London Heathrow Airport round-trip?

What are the cheapest airlines to fly from Porto to London Heathrow Airport one-way?

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?

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Alternative routes for 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 March 21, 2025.