Question 1

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

Accepted Answer

In the last 3 days, the lowest price for a flight from Porto to London Heathrow Airport was $59 for a one-way ticket and $182 for a round-trip. <a href='/flight-routes/Porto-OPO/London-Heathrow-LHR'>Visit our flight page for the latest deals!>/a>

Question 2

Do I need a passport to fly between Porto and London Heathrow Airport?

Accepted Answer

Yes <a href='/flight-routes/Porto-OPO/London-Heathrow-LHR'>Visit our flight page for the latest deals!>/a>

Question 3

What’s the cheapest day of the week to fly from Porto to London Heathrow Airport?

Accepted Answer

When flying from Porto to London Heathrow Airport, you should consider leaving on a Tuesday and avoid Sundays if you are looking for the best rates. For your return to Porto, you’ll find the best rates on Sundays and the most expensive ones on Thursdays. Visit our flight page for the latest deals!>/a>

Question 4

What’s the cheapest day of the week to fly from Porto to London Heathrow Airport?

Accepted Answer

When flying from Porto to London Heathrow Airport, you should consider leaving on a Tuesday and avoid Sundays if you are looking for the best rates. For your return to Porto, you’ll find the best rates on Sundays and the most expensive ones on Thursdays. Visit our flight page for the latest deals!>/a>

Question 5

Which aircraft models fly most regularly from Porto to London Heathrow Airport?

Accepted Answer

We unfortunately don’t have that data for this specific route.

Question 6

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

Accepted Answer

The cheapest month for flights from Porto to London Heathrow Airport is February, where tickets cost $172 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is $474 and $337 respectively.

Question 7

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

Accepted Answer

The cheapest month for flights from Porto to London Heathrow Airport is February, where tickets cost $172 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is $474 and $337 respectively.

Question 8

How does KAYAK find such low prices on flights from Porto to London Heathrow Airport?

Accepted Answer

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Porto to London Heathrow Airport. <a href='/flight-routes/Porto-OPO/London-Heathrow-LHR'>Visit our flight page for the latest deals!>/a>

Question 9

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Porto to London Heathrow Airport?

Accepted Answer

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Porto is likely to change within 7 days, so travelers know whether to wait or book now. <a href='/flight-routes/Porto-OPO/London-Heathrow-LHR'>Visit our flight page for the latest deals!>/a>

Question 10

What is the Hacker Fare option on flights from Porto to London Heathrow Airport?

Accepted Answer

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London Heathrow Airport with an airline and back to Porto with another airline. Booking your flights between Porto and LHR can sometimes prove cheaper using this method. <a href='/flight-routes/Porto-OPO/London-Heathrow-LHR'>Visit our flight page for the latest deals!>/a>

Question 11

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Porto to London Heathrow Airport?

Accepted Answer

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Porto up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. <a href='/flight-routes/Porto-OPO/London-Heathrow-LHR'>Visit our flight page for the latest deals!>/a>

Question 12

What is the cheapest layover airport when flying from Porto to London Heathrow Airport?

Accepted Answer

Flights via Lisbon (LIS) offer the most affordable fares, with an average round-trip price of $320.

Question 13

What is the most popular layover airport when flying from Porto to London Heathrow Airport?

Accepted Answer

Lisbon (LIS) is the top choice – 82% of KAYAK users who clicked on 1-stop flights from Porto to London Heathrow Airport picked an itinerary connecting there.

Question 14

Which layover airport has the quickest connection when flying from Porto to London Heathrow Airport?

Accepted Answer

If you prefer a quick connection, Lisbon (LIS) often has the shortest layovers from Porto to London Heathrow Airport, with an average of 1h 43m.

Question 15

Which layover airport offers the shortest total travel time from Porto to London Heathrow Airport?

Accepted Answer

Consider flying via Madrid (MAD) for the shortest journey. The average one-way travel time for flights connecting there is 4h 55m.

Question 16

Which airlines provide the cheapest flights from Porto to London Heathrow Airport?

Accepted Answer

In the past 3 days, the cheapest round-trip tickets from Porto to London Heathrow Airport were found on Vueling ($182) and KLM ($203).

Question 17

Which airlines provide the cheapest flights from Porto to London Heathrow Airport?

Accepted Answer

In the past 3 days, the cheapest round-trip tickets from Porto to London Heathrow Airport were found on Vueling ($182) and KLM ($203).

Low season	May
High season	December
Cheapest flight	$59

OPO - LHR

$59 Find Cheap Flights from Porto to London Heathrow Airport

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

Cheap Flights from Porto to Heathrow (OPO-LHR)

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Everything you should know

KAYAK's insights & trends for Porto to Heathrow flights

Get data-powered insights and trends into flights from Porto to Heathrow to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Porto to London Heathrow Airport?

When flying from Porto to London Heathrow Airport, you should consider leaving on a Tuesday and avoid Sundays if you are looking for the best rates. For your return to Porto, you’ll find the best rates on Sundays and the most expensive ones on Thursdays.

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

The cheapest month for flights from Porto to London Heathrow Airport is February, where tickets cost $172 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is $474 and $337 respectively.

Which airlines provide the cheapest flights from Porto to London Heathrow Airport?

In the past 3 days, the cheapest round-trip tickets from Porto to London Heathrow Airport were found on Vueling ($182) and KLM ($203).

What is the most popular layover airport when flying from Porto to London Heathrow Airport?

Lisbon (LIS) is the top choice – 82% of KAYAK users who clicked on 1-stop flights from Porto to London Heathrow Airport picked an itinerary connecting there.

What is the cheapest layover airport when flying from Porto to London Heathrow Airport?

Flights via Lisbon (LIS) offer the most affordable fares, with an average round-trip price of $320.

Which layover airport offers the shortest total travel time from Porto to London Heathrow Airport?

Consider flying via Madrid (MAD) for the shortest journey. The average one-way travel time for flights connecting there is 4h 55m.

Which layover airport has the quickest connection when flying from Porto to London Heathrow Airport?

If you prefer a quick connection, Lisbon (LIS) often has the shortest layovers from Porto to London Heathrow Airport, with an average of 1h 43m.

Good to know

When to book flights from Porto to Heathrow

FAQs for booking Porto to London Heathrow Airport flights

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

In the last 3 days, the lowest price for a flight from Porto to London Heathrow Airport was $59 for a one-way ticket and $182 for a round-trip.

Do I need a passport to fly between Porto and London Heathrow Airport?

Yes

Which aircraft models fly most regularly from Porto to London Heathrow Airport?

We unfortunately don’t have that data for this specific route.

How does KAYAK find such low prices on flights from Porto to London Heathrow Airport?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Porto to London Heathrow Airport.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Porto to London Heathrow Airport?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Porto is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Porto to London Heathrow Airport?

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Porto to London Heathrow Airport?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Porto up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Porto to Heathrow

Information on your arrival and departure airports

Cabin class types available on flights to Heathrow

Complete your trip to London with a hotel stay or car rental

Find direct flights to and from Porto and Heathrow

Flights to other popular destinations

Flights from domestic origins to Heathrow

Choose which airport to fly into in London

Find deals for your return flight